/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-properties/list_search-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:39:45,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:39:45,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:39:45,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:39:45,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:39:45,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:39:45,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:39:45,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:39:45,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:39:45,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:39:45,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:39:45,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:39:45,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:39:45,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:39:45,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:39:45,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:39:45,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:39:45,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:39:45,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:39:45,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:39:45,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:39:45,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:39:45,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:39:45,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:39:45,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 16:39:45,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 16:39:45,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 16:39:45,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 16:39:45,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 16:39:45,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 16:39:45,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 16:39:45,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 16:39:45,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 16:39:45,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 16:39:45,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 16:39:45,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 16:39:45,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 16:39:45,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 16:39:45,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:39:45,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:39:45,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:39:45,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 16:39:46,012 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:39:46,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:39:46,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:39:46,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:39:46,015 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:39:46,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:39:46,015 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:39:46,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:39:46,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:39:46,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:39:46,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:39:46,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:39:46,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:39:46,016 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:39:46,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:39:46,017 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:39:46,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:39:46,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:39:46,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:39:46,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:39:46,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:39:46,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:39:46,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:39:46,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:39:46,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:39:46,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:39:46,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:39:46,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:39:46,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:39:46,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:39:46,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:39:46,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:39:46,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:39:46,353 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:39:46,354 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:39:46,355 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-1.i [2020-08-22 16:39:46,430 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37af74acf/90e6f4acef1246f9a40b407bb715482a/FLAGd90abd687 [2020-08-22 16:39:47,017 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:39:47,018 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list_search-1.i [2020-08-22 16:39:47,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37af74acf/90e6f4acef1246f9a40b407bb715482a/FLAGd90abd687 [2020-08-22 16:39:47,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37af74acf/90e6f4acef1246f9a40b407bb715482a [2020-08-22 16:39:47,280 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:39:47,282 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:39:47,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:39:47,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:39:47,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:39:47,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:39:47" (1/1) ... [2020-08-22 16:39:47,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562b3fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:47, skipping insertion in model container [2020-08-22 16:39:47,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:39:47" (1/1) ... [2020-08-22 16:39:47,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:39:47,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:39:47,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:39:47,784 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:39:47,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:39:47,922 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:39:47,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:47 WrapperNode [2020-08-22 16:39:47,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:39:47,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:39:47,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:39:47,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:39:47,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:47" (1/1) ... [2020-08-22 16:39:47,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:47" (1/1) ... [2020-08-22 16:39:47,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:47" (1/1) ... [2020-08-22 16:39:47,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:47" (1/1) ... [2020-08-22 16:39:47,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:47" (1/1) ... [2020-08-22 16:39:47,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:47" (1/1) ... [2020-08-22 16:39:47,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:47" (1/1) ... [2020-08-22 16:39:47,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:39:47,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:39:47,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:39:47,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:39:47,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:47" (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 [2020-08-22 16:39:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:39:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:39:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 16:39:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-22 16:39:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-22 16:39:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-08-22 16:39:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-08-22 16:39:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-08-22 16:39:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2020-08-22 16:39:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2020-08-22 16:39:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:39:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:39:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 16:39:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-22 16:39:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-22 16:39:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-22 16:39:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-22 16:39:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-22 16:39:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-22 16:39:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-22 16:39:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-22 16:39:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-22 16:39:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-22 16:39:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-22 16:39:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-22 16:39:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-22 16:39:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-22 16:39:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-22 16:39:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-22 16:39:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-22 16:39:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-22 16:39:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-08-22 16:39:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-08-22 16:39:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-08-22 16:39:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-22 16:39:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-22 16:39:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-22 16:39:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-22 16:39:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-22 16:39:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-22 16:39:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-22 16:39:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-22 16:39:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-22 16:39:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-22 16:39:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-22 16:39:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-22 16:39:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-22 16:39:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-22 16:39:48,064 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-22 16:39:48,064 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-22 16:39:48,064 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-22 16:39:48,064 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-22 16:39:48,064 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-22 16:39:48,064 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-22 16:39:48,064 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-22 16:39:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-22 16:39:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-22 16:39:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-22 16:39:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-22 16:39:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-22 16:39:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-22 16:39:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-22 16:39:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-22 16:39:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-22 16:39:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-22 16:39:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-22 16:39:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-22 16:39:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-22 16:39:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 16:39:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 16:39:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-22 16:39:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 16:39:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-22 16:39:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-22 16:39:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-22 16:39:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-22 16:39:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 16:39:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-22 16:39:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-22 16:39:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-22 16:39:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 16:39:48,071 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-22 16:39:48,071 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-22 16:39:48,071 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-22 16:39:48,072 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-22 16:39:48,072 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-22 16:39:48,072 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-22 16:39:48,073 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-22 16:39:48,073 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-22 16:39:48,073 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-22 16:39:48,074 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-22 16:39:48,074 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-22 16:39:48,074 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-22 16:39:48,074 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-22 16:39:48,074 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-22 16:39:48,075 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-22 16:39:48,075 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-22 16:39:48,075 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-22 16:39:48,075 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-22 16:39:48,075 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-22 16:39:48,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-22 16:39:48,075 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-22 16:39:48,075 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-22 16:39:48,076 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-22 16:39:48,076 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-22 16:39:48,076 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-22 16:39:48,076 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-22 16:39:48,076 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-22 16:39:48,076 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-22 16:39:48,076 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-22 16:39:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-22 16:39:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-22 16:39:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-22 16:39:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-22 16:39:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-22 16:39:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-22 16:39:48,078 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-22 16:39:48,078 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-22 16:39:48,079 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-22 16:39:48,079 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-22 16:39:48,079 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2020-08-22 16:39:48,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 16:39:48,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 16:39:48,080 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2020-08-22 16:39:48,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 16:39:48,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 16:39:48,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 16:39:48,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:39:48,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 16:39:48,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:39:48,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:39:48,603 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:39:48,604 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-22 16:39:48,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:39:48 BoogieIcfgContainer [2020-08-22 16:39:48,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:39:48,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:39:48,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:39:48,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:39:48,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:39:47" (1/3) ... [2020-08-22 16:39:48,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a76918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:39:48, skipping insertion in model container [2020-08-22 16:39:48,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:47" (2/3) ... [2020-08-22 16:39:48,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a76918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:39:48, skipping insertion in model container [2020-08-22 16:39:48,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:39:48" (3/3) ... [2020-08-22 16:39:48,615 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2020-08-22 16:39:48,624 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:39:48,631 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:39:48,642 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:39:48,662 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:39:48,662 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:39:48,662 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:39:48,662 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:39:48,662 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:39:48,662 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:39:48,663 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:39:48,663 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:39:48,680 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-08-22 16:39:48,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-08-22 16:39:48,687 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:39:48,688 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:39:48,688 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:39:48,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:39:48,693 INFO L82 PathProgramCache]: Analyzing trace with hash -125905961, now seen corresponding path program 1 times [2020-08-22 16:39:48,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:39:48,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257698353] [2020-08-22 16:39:48,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:39:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:48,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:39:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:49,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:39:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:49,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 16:39:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:49,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 16:39:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:49,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 16:39:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:49,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 16:39:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:49,237 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-22 16:39:49,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257698353] [2020-08-22 16:39:49,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297162394] [2020-08-22 16:39:49,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:39:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:49,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 1 conjunts are in the unsatisfiable core [2020-08-22 16:39:49,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:39:49,447 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-08-22 16:39:49,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:39:49,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2020-08-22 16:39:49,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426400647] [2020-08-22 16:39:49,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-08-22 16:39:49,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:39:49,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-08-22 16:39:49,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:39:49,475 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2020-08-22 16:39:49,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:39:49,501 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2020-08-22 16:39:49,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-08-22 16:39:49,503 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 45 [2020-08-22 16:39:49,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:39:49,513 INFO L225 Difference]: With dead ends: 58 [2020-08-22 16:39:49,513 INFO L226 Difference]: Without dead ends: 33 [2020-08-22 16:39:49,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:39:49,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-08-22 16:39:49,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-08-22 16:39:49,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-08-22 16:39:49,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2020-08-22 16:39:49,562 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 45 [2020-08-22 16:39:49,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:39:49,564 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2020-08-22 16:39:49,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-08-22 16:39:49,565 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2020-08-22 16:39:49,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-22 16:39:49,567 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:39:49,567 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:39:49,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-08-22 16:39:49,782 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:39:49,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:39:49,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1842115760, now seen corresponding path program 1 times [2020-08-22 16:39:49,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:39:49,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170299928] [2020-08-22 16:39:49,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:39:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:49,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:39:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:49,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:39:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:49,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 16:39:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:49,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 16:39:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:49,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 16:39:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:50,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 16:39:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:50,016 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-22 16:39:50,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170299928] [2020-08-22 16:39:50,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057304124] [2020-08-22 16:39:50,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:39:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:50,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 23 conjunts are in the unsatisfiable core [2020-08-22 16:39:50,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:39:50,259 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-08-22 16:39:50,260 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-08-22 16:39:50,272 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-08-22 16:39:50,274 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-08-22 16:39:50,275 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:7 [2020-08-22 16:39:50,328 INFO L350 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2020-08-22 16:39:50,329 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 11 [2020-08-22 16:39:50,330 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-08-22 16:39:50,333 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-08-22 16:39:50,334 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-08-22 16:39:50,334 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:7 [2020-08-22 16:39:50,428 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:39:50,435 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:39:50,570 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-08-22 16:39:50,574 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-08-22 16:39:50,580 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-08-22 16:39:50,580 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-08-22 16:39:50,580 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:1 [2020-08-22 16:39:50,588 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-08-22 16:39:50,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:39:50,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2020-08-22 16:39:50,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241972244] [2020-08-22 16:39:50,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 16:39:50,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:39:50,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 16:39:50,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-08-22 16:39:50,599 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 9 states. [2020-08-22 16:39:50,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:39:50,959 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2020-08-22 16:39:50,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 16:39:50,959 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2020-08-22 16:39:50,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:39:50,963 INFO L225 Difference]: With dead ends: 71 [2020-08-22 16:39:50,963 INFO L226 Difference]: Without dead ends: 62 [2020-08-22 16:39:50,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2020-08-22 16:39:50,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-08-22 16:39:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 48. [2020-08-22 16:39:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-08-22 16:39:50,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2020-08-22 16:39:50,980 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 47 [2020-08-22 16:39:50,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:39:50,981 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2020-08-22 16:39:50,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 16:39:50,981 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2020-08-22 16:39:50,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-22 16:39:50,983 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:39:50,983 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:39:51,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:39:51,199 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:39:51,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:39:51,199 INFO L82 PathProgramCache]: Analyzing trace with hash 2059824526, now seen corresponding path program 1 times [2020-08-22 16:39:51,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:39:51,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81762347] [2020-08-22 16:39:51,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:39:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:51,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:39:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:51,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:39:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:51,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 16:39:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:51,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 16:39:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:51,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 16:39:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:51,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 16:39:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:51,345 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-22 16:39:51,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81762347] [2020-08-22 16:39:51,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817846011] [2020-08-22 16:39:51,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:39:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:51,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 9 conjunts are in the unsatisfiable core [2020-08-22 16:39:51,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:39:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-08-22 16:39:51,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:39:51,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2020-08-22 16:39:51,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195262834] [2020-08-22 16:39:51,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 16:39:51,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:39:51,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 16:39:51,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-22 16:39:51,539 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand 6 states. [2020-08-22 16:39:51,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:39:51,644 INFO L93 Difference]: Finished difference Result 84 states and 103 transitions. [2020-08-22 16:39:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 16:39:51,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2020-08-22 16:39:51,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:39:51,646 INFO L225 Difference]: With dead ends: 84 [2020-08-22 16:39:51,647 INFO L226 Difference]: Without dead ends: 45 [2020-08-22 16:39:51,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-08-22 16:39:51,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-08-22 16:39:51,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 40. [2020-08-22 16:39:51,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-08-22 16:39:51,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2020-08-22 16:39:51,655 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 47 [2020-08-22 16:39:51,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:39:51,656 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-08-22 16:39:51,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 16:39:51,656 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2020-08-22 16:39:51,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-22 16:39:51,657 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:39:51,657 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:39:51,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:39:51,871 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:39:51,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:39:51,872 INFO L82 PathProgramCache]: Analyzing trace with hash 874015054, now seen corresponding path program 1 times [2020-08-22 16:39:51,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:39:51,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736695496] [2020-08-22 16:39:51,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:39:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:51,959 ERROR L253 erpolLogProxyWrapper]: Interpolant 12 not inductive [2020-08-22 16:39:51,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 16:39:51,961 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:874) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-22 16:39:51,969 INFO L168 Benchmark]: Toolchain (without parser) took 4685.46 ms. Allocated memory was 140.5 MB in the beginning and 246.4 MB in the end (delta: 105.9 MB). Free memory was 102.5 MB in the beginning and 171.5 MB in the end (delta: -69.0 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. [2020-08-22 16:39:51,970 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 16:39:51,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.67 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 169.4 MB in the end (delta: -67.2 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:39:51,982 INFO L168 Benchmark]: Boogie Preprocessor took 62.58 ms. Allocated memory is still 203.4 MB. Free memory was 169.4 MB in the beginning and 166.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-08-22 16:39:51,982 INFO L168 Benchmark]: RCFGBuilder took 620.68 ms. Allocated memory is still 203.4 MB. Free memory was 166.4 MB in the beginning and 121.4 MB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2020-08-22 16:39:51,983 INFO L168 Benchmark]: TraceAbstraction took 3356.83 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 120.8 MB in the beginning and 171.5 MB in the end (delta: -50.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 16:39:51,992 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 640.67 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 169.4 MB in the end (delta: -67.2 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.58 ms. Allocated memory is still 203.4 MB. Free memory was 169.4 MB in the beginning and 166.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 620.68 ms. Allocated memory is still 203.4 MB. Free memory was 166.4 MB in the beginning and 121.4 MB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3356.83 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 120.8 MB in the beginning and 171.5 MB in the end (delta: -50.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...