/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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-properties/alternating_list-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:31:06,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:31:06,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:31:06,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:31:06,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:31:06,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:31:06,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:31:06,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:31:06,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:31:06,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:31:06,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:31:06,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:31:06,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:31:06,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:31:06,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:31:06,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:31:06,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:31:06,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:31:06,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:31:06,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:31:06,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:31:06,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:31:06,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:31:06,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:31:06,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:31:06,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:31:06,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:31:06,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:31:06,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:31:07,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:31:07,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:31:07,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:31:07,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:31:07,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:31:07,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:31:07,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:31:07,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:31:07,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:31:07,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:31:07,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:31:07,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:31:07,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:31:07,023 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:31:07,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:31:07,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:31:07,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:31:07,025 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:31:07,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:31:07,026 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:31:07,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:31:07,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:31:07,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:31:07,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:31:07,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:31:07,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:31:07,027 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:31:07,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:31:07,027 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:31:07,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:31:07,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:31:07,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:31:07,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:31:07,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:31:07,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:31:07,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:31:07,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:31:07,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:31:07,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:31:07,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:31:07,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:31:07,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:31:07,363 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:31:07,383 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:31:07,387 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:31:07,388 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:31:07,389 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:31:07,389 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/alternating_list-1.i [2019-11-07 00:31:07,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba8163ee/19ea04058d7a4124a1ec07193a8c0b73/FLAGa1115c3fb [2019-11-07 00:31:08,011 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:31:08,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/alternating_list-1.i [2019-11-07 00:31:08,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba8163ee/19ea04058d7a4124a1ec07193a8c0b73/FLAGa1115c3fb [2019-11-07 00:31:08,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba8163ee/19ea04058d7a4124a1ec07193a8c0b73 [2019-11-07 00:31:08,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:31:08,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:31:08,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:08,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:31:08,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:31:08,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:08" (1/1) ... [2019-11-07 00:31:08,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550e981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:08, skipping insertion in model container [2019-11-07 00:31:08,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:08" (1/1) ... [2019-11-07 00:31:08,324 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:31:08,373 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:31:08,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:08,815 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:31:08,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:08,958 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:31:08,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:08 WrapperNode [2019-11-07 00:31:08,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:08,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:31:08,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:31:08,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:31:08,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:08" (1/1) ... [2019-11-07 00:31:08,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:08" (1/1) ... [2019-11-07 00:31:08,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:08" (1/1) ... [2019-11-07 00:31:08,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:08" (1/1) ... [2019-11-07 00:31:09,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:08" (1/1) ... [2019-11-07 00:31:09,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:08" (1/1) ... [2019-11-07 00:31:09,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:08" (1/1) ... [2019-11-07 00:31:09,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:31:09,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:31:09,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:31:09,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:31:09,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:08" (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 [2019-11-07 00:31:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:31:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:31:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 00:31:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 00:31:09,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-07 00:31:09,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-07 00:31:09,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-07 00:31:09,090 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 00:31:09,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:31:09,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:31:09,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:31:09,091 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 00:31:09,092 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 00:31:09,093 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 00:31:09,093 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 00:31:09,093 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 00:31:09,095 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 00:31:09,095 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 00:31:09,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 00:31:09,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 00:31:09,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 00:31:09,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 00:31:09,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 00:31:09,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 00:31:09,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 00:31:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 00:31:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 00:31:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 00:31:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 00:31:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-07 00:31:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-07 00:31:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-07 00:31:09,098 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 00:31:09,098 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 00:31:09,098 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 00:31:09,098 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 00:31:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 00:31:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 00:31:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 00:31:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 00:31:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 00:31:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 00:31:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 00:31:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 00:31:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 00:31:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 00:31:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 00:31:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 00:31:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 00:31:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 00:31:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 00:31:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 00:31:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 00:31:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 00:31:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 00:31:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 00:31:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 00:31:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 00:31:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 00:31:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 00:31:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 00:31:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 00:31:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 00:31:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 00:31:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 00:31:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 00:31:09,104 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:31:09,104 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 00:31:09,105 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 00:31:09,105 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:31:09,105 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 00:31:09,105 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 00:31:09,105 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 00:31:09,106 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 00:31:09,106 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 00:31:09,106 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 00:31:09,107 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 00:31:09,107 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 00:31:09,107 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 00:31:09,107 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 00:31:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 00:31:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 00:31:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 00:31:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 00:31:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 00:31:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 00:31:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 00:31:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 00:31:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 00:31:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 00:31:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 00:31:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 00:31:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 00:31:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 00:31:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 00:31:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 00:31:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 00:31:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 00:31:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 00:31:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 00:31:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 00:31:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 00:31:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 00:31:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 00:31:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 00:31:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 00:31:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 00:31:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 00:31:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 00:31:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 00:31:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 00:31:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 00:31:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 00:31:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 00:31:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 00:31:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 00:31:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 00:31:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 00:31:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 00:31:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:31:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:31:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:31:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:31:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:31:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:31:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:31:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:31:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:31:09,503 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 00:31:09,661 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:31:09,662 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-07 00:31:09,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:09 BoogieIcfgContainer [2019-11-07 00:31:09,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:31:09,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:31:09,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:31:09,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:31:09,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:31:08" (1/3) ... [2019-11-07 00:31:09,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e63826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:09, skipping insertion in model container [2019-11-07 00:31:09,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:08" (2/3) ... [2019-11-07 00:31:09,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e63826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:09, skipping insertion in model container [2019-11-07 00:31:09,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:09" (3/3) ... [2019-11-07 00:31:09,676 INFO L109 eAbstractionObserver]: Analyzing ICFG alternating_list-1.i [2019-11-07 00:31:09,686 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:31:09,697 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:31:09,706 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:31:09,726 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:31:09,726 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:31:09,726 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:31:09,726 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:31:09,726 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:31:09,726 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:31:09,727 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:31:09,727 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:31:09,740 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-11-07 00:31:09,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-07 00:31:09,745 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:09,746 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:09,748 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:09,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:09,753 INFO L82 PathProgramCache]: Analyzing trace with hash 209903222, now seen corresponding path program 1 times [2019-11-07 00:31:09,761 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:09,761 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094787946] [2019-11-07 00:31:09,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:09,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:09,907 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094787946] [2019-11-07 00:31:09,908 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:09,909 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:31:09,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889147125] [2019-11-07 00:31:09,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:31:09,918 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:09,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:31:09,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:31:09,933 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2019-11-07 00:31:09,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:09,956 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2019-11-07 00:31:09,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:31:09,957 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-11-07 00:31:09,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:09,965 INFO L225 Difference]: With dead ends: 52 [2019-11-07 00:31:09,966 INFO L226 Difference]: Without dead ends: 23 [2019-11-07 00:31:09,969 INFO L630 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 [2019-11-07 00:31:09,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-07 00:31:10,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-07 00:31:10,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-07 00:31:10,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-11-07 00:31:10,008 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2019-11-07 00:31:10,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:10,009 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-11-07 00:31:10,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:31:10,009 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-11-07 00:31:10,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-07 00:31:10,010 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:10,010 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:10,011 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:10,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:10,011 INFO L82 PathProgramCache]: Analyzing trace with hash 919137993, now seen corresponding path program 1 times [2019-11-07 00:31:10,012 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:10,012 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860408867] [2019-11-07 00:31:10,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:10,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:10,113 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860408867] [2019-11-07 00:31:10,113 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:10,114 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:31:10,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735115329] [2019-11-07 00:31:10,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:31:10,116 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:10,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:31:10,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:31:10,117 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 3 states. [2019-11-07 00:31:10,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:10,170 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2019-11-07 00:31:10,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:31:10,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-07 00:31:10,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:10,171 INFO L225 Difference]: With dead ends: 51 [2019-11-07 00:31:10,172 INFO L226 Difference]: Without dead ends: 36 [2019-11-07 00:31:10,172 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:31:10,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-07 00:31:10,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2019-11-07 00:31:10,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-07 00:31:10,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2019-11-07 00:31:10,179 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 16 [2019-11-07 00:31:10,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:10,180 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2019-11-07 00:31:10,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:31:10,180 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2019-11-07 00:31:10,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-07 00:31:10,181 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:10,181 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:10,181 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:10,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:10,182 INFO L82 PathProgramCache]: Analyzing trace with hash 919131049, now seen corresponding path program 1 times [2019-11-07 00:31:10,182 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:10,182 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321690772] [2019-11-07 00:31:10,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:10,273 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321690772] [2019-11-07 00:31:10,273 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:10,273 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:31:10,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766751255] [2019-11-07 00:31:10,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:31:10,274 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:10,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:31:10,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:31:10,275 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 5 states. [2019-11-07 00:31:10,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:10,395 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2019-11-07 00:31:10,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:31:10,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-07 00:31:10,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:10,398 INFO L225 Difference]: With dead ends: 61 [2019-11-07 00:31:10,398 INFO L226 Difference]: Without dead ends: 46 [2019-11-07 00:31:10,398 INFO L630 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 [2019-11-07 00:31:10,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-07 00:31:10,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 35. [2019-11-07 00:31:10,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-07 00:31:10,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2019-11-07 00:31:10,410 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 16 [2019-11-07 00:31:10,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:10,411 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2019-11-07 00:31:10,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:31:10,414 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2019-11-07 00:31:10,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-07 00:31:10,414 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:10,415 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:10,415 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:10,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:10,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1446652468, now seen corresponding path program 1 times [2019-11-07 00:31:10,416 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:10,416 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701893903] [2019-11-07 00:31:10,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:10,730 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701893903] [2019-11-07 00:31:10,730 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346842697] [2019-11-07 00:31:10,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:31:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:10,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-07 00:31:10,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:31:10,932 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2019-11-07 00:31:10,932 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:10,939 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:10,940 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:10,940 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-07 00:31:10,991 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-07 00:31:10,991 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:10,998 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:10,999 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:10,999 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-11-07 00:31:11,052 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:11,053 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-07 00:31:11,054 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:11,064 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:11,064 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:11,064 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:18 [2019-11-07 00:31:11,132 INFO L341 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2019-11-07 00:31:11,132 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 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 [2019-11-07 00:31:11,133 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:11,139 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:11,140 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:11,140 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:12 [2019-11-07 00:31:11,174 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2019-11-07 00:31:11,175 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:11,186 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:11,187 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:11,187 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:19 [2019-11-07 00:31:11,237 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-11-07 00:31:11,238 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:11,243 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:11,244 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:11,244 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2019-11-07 00:31:11,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:11,252 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:31:11,310 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:11,330 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:11,336 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:11,343 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:11,344 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-11-07 00:31:11,345 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:54, output treesize:22 [2019-11-07 00:31:11,395 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:11,450 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 75 [2019-11-07 00:31:11,451 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:11,503 INFO L567 ElimStorePlain]: treesize reduction 32, result has 50.8 percent of original size [2019-11-07 00:31:11,505 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-11-07 00:31:11,505 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:21 [2019-11-07 00:31:11,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:11,657 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [734186869] [2019-11-07 00:31:11,663 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 23 [2019-11-07 00:31:11,699 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:31:11,700 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:31:11,771 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 00:31:11,772 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 20 root evaluator evaluations with a maximum evaluation depth of 0. Performed 20 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 32 variables. [2019-11-07 00:31:11,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:11,776 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 00:31:11,807 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-07 00:31:11,808 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 00:31:11,809 INFO L553 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2019-11-07 00:31:11,810 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 00:31:11,810 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:31:11,810 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [11, 9, 9] total 21 [2019-11-07 00:31:11,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248214888] [2019-11-07 00:31:11,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:31:11,812 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:11,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:31:11,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2019-11-07 00:31:11,813 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 2 states. [2019-11-07 00:31:11,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:11,815 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2019-11-07 00:31:11,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:31:11,816 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-11-07 00:31:11,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:11,816 INFO L225 Difference]: With dead ends: 35 [2019-11-07 00:31:11,816 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:31:11,817 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2019-11-07 00:31:11,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:31:11,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:31:11,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:31:11,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:31:11,818 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-11-07 00:31:11,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:11,819 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:31:11,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:31:11,819 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:31:11,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:31:12,023 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:31:12,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:31:12,066 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:31:12,066 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:31:12,066 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:31:12,066 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 517 519) the Hoare annotation is: true [2019-11-07 00:31:12,067 INFO L446 ceAbstractionStarter]: At program point L518(line 518) the Hoare annotation is: true [2019-11-07 00:31:12,067 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 517 519) no Hoare annotation was computed. [2019-11-07 00:31:12,067 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 161 165) no Hoare annotation was computed. [2019-11-07 00:31:12,067 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 161 165) no Hoare annotation was computed. [2019-11-07 00:31:12,067 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 161 165) no Hoare annotation was computed. [2019-11-07 00:31:12,067 INFO L443 ceAbstractionStarter]: For program point __uint64_identityFINAL(lines 181 185) no Hoare annotation was computed. [2019-11-07 00:31:12,067 INFO L443 ceAbstractionStarter]: For program point __uint64_identityENTRY(lines 181 185) no Hoare annotation was computed. [2019-11-07 00:31:12,067 INFO L443 ceAbstractionStarter]: For program point __uint64_identityEXIT(lines 181 185) no Hoare annotation was computed. [2019-11-07 00:31:12,067 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 166 170) no Hoare annotation was computed. [2019-11-07 00:31:12,067 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 166 170) no Hoare annotation was computed. [2019-11-07 00:31:12,067 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 166 170) no Hoare annotation was computed. [2019-11-07 00:31:12,068 INFO L443 ceAbstractionStarter]: For program point __uint16_identityENTRY(lines 171 175) no Hoare annotation was computed. [2019-11-07 00:31:12,068 INFO L443 ceAbstractionStarter]: For program point __uint16_identityEXIT(lines 171 175) no Hoare annotation was computed. [2019-11-07 00:31:12,068 INFO L443 ceAbstractionStarter]: For program point __uint16_identityFINAL(lines 171 175) no Hoare annotation was computed. [2019-11-07 00:31:12,068 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:31:12,068 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:31:12,068 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:31:12,068 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:31:12,068 INFO L443 ceAbstractionStarter]: For program point L543(lines 543 551) no Hoare annotation was computed. [2019-11-07 00:31:12,068 INFO L443 ceAbstractionStarter]: For program point L543-2(lines 543 551) no Hoare annotation was computed. [2019-11-07 00:31:12,068 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 520 564) no Hoare annotation was computed. [2019-11-07 00:31:12,068 INFO L443 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2019-11-07 00:31:12,069 INFO L446 ceAbstractionStarter]: At program point L535-1(line 535) the Hoare annotation is: true [2019-11-07 00:31:12,069 INFO L443 ceAbstractionStarter]: For program point L535-3(line 535) no Hoare annotation was computed. [2019-11-07 00:31:12,069 INFO L443 ceAbstractionStarter]: For program point L527(lines 527 533) no Hoare annotation was computed. [2019-11-07 00:31:12,069 INFO L443 ceAbstractionStarter]: For program point L527-2(lines 527 533) no Hoare annotation was computed. [2019-11-07 00:31:12,069 INFO L443 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2019-11-07 00:31:12,069 INFO L446 ceAbstractionStarter]: At program point L523-1(line 523) the Hoare annotation is: true [2019-11-07 00:31:12,069 INFO L443 ceAbstractionStarter]: For program point L523-3(line 523) no Hoare annotation was computed. [2019-11-07 00:31:12,069 INFO L443 ceAbstractionStarter]: For program point L549(lines 549 550) no Hoare annotation was computed. [2019-11-07 00:31:12,070 INFO L443 ceAbstractionStarter]: For program point L545(lines 545 546) no Hoare annotation was computed. [2019-11-07 00:31:12,070 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 562) no Hoare annotation was computed. [2019-11-07 00:31:12,070 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 520 564) no Hoare annotation was computed. [2019-11-07 00:31:12,070 INFO L439 ceAbstractionStarter]: At program point L550(lines 520 564) the Hoare annotation is: false [2019-11-07 00:31:12,070 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 520 564) the Hoare annotation is: true [2019-11-07 00:31:12,070 INFO L443 ceAbstractionStarter]: For program point L542-1(lines 542 553) no Hoare annotation was computed. [2019-11-07 00:31:12,071 INFO L439 ceAbstractionStarter]: At program point L542-3(lines 542 553) the Hoare annotation is: (and (= main_~a~0.base main_~p~0.base) (= main_~flag~0 1) (= main_~a~0.offset main_~p~0.offset) (= 3 (select (select |#memory_int| main_~p~0.base) main_~p~0.offset))) [2019-11-07 00:31:12,071 INFO L443 ceAbstractionStarter]: For program point L542-4(lines 542 553) no Hoare annotation was computed. [2019-11-07 00:31:12,071 INFO L443 ceAbstractionStarter]: For program point L526-1(lines 526 538) no Hoare annotation was computed. [2019-11-07 00:31:12,071 INFO L439 ceAbstractionStarter]: At program point L526-3(lines 526 538) the Hoare annotation is: false [2019-11-07 00:31:12,071 INFO L443 ceAbstractionStarter]: For program point L526-4(lines 526 538) no Hoare annotation was computed. [2019-11-07 00:31:12,071 INFO L443 ceAbstractionStarter]: For program point L555-1(lines 555 559) no Hoare annotation was computed. [2019-11-07 00:31:12,071 INFO L446 ceAbstractionStarter]: At program point L555-3(lines 555 559) the Hoare annotation is: true [2019-11-07 00:31:12,071 INFO L443 ceAbstractionStarter]: For program point L555-4(lines 555 559) no Hoare annotation was computed. [2019-11-07 00:31:12,072 INFO L443 ceAbstractionStarter]: For program point __uint32_identityFINAL(lines 176 180) no Hoare annotation was computed. [2019-11-07 00:31:12,072 INFO L443 ceAbstractionStarter]: For program point __uint32_identityENTRY(lines 176 180) no Hoare annotation was computed. [2019-11-07 00:31:12,072 INFO L443 ceAbstractionStarter]: For program point __uint32_identityEXIT(lines 176 180) no Hoare annotation was computed. [2019-11-07 00:31:12,081 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-07 00:31:12,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-07 00:31:12,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:31:12 BoogieIcfgContainer [2019-11-07 00:31:12,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:31:12,088 INFO L168 Benchmark]: Toolchain (without parser) took 3785.59 ms. Allocated memory was 143.7 MB in the beginning and 252.7 MB in the end (delta: 109.1 MB). Free memory was 100.4 MB in the beginning and 196.9 MB in the end (delta: -96.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:12,089 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-07 00:31:12,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.94 ms. Allocated memory was 143.7 MB in the beginning and 199.2 MB in the end (delta: 55.6 MB). Free memory was 100.2 MB in the beginning and 164.4 MB in the end (delta: -64.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:12,091 INFO L168 Benchmark]: Boogie Preprocessor took 61.66 ms. Allocated memory is still 199.2 MB. Free memory was 164.4 MB in the beginning and 161.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:12,091 INFO L168 Benchmark]: RCFGBuilder took 643.03 ms. Allocated memory is still 199.2 MB. Free memory was 161.7 MB in the beginning and 117.9 MB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:12,092 INFO L168 Benchmark]: TraceAbstraction took 2421.53 ms. Allocated memory was 199.2 MB in the beginning and 252.7 MB in the end (delta: 53.5 MB). Free memory was 117.2 MB in the beginning and 196.9 MB in the end (delta: -79.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 00:31:12,096 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 654.94 ms. Allocated memory was 143.7 MB in the beginning and 199.2 MB in the end (delta: 55.6 MB). Free memory was 100.2 MB in the beginning and 164.4 MB in the end (delta: -64.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.66 ms. Allocated memory is still 199.2 MB. Free memory was 164.4 MB in the beginning and 161.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 643.03 ms. Allocated memory is still 199.2 MB. Free memory was 161.7 MB in the beginning and 117.9 MB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2421.53 ms. Allocated memory was 199.2 MB in the beginning and 252.7 MB in the end (delta: 53.5 MB). Free memory was 117.2 MB in the beginning and 196.9 MB in the end (delta: -79.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 562]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 542]: Loop Invariant [2019-11-07 00:31:12,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-07 00:31:12,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((a == p && flag == 1) && a == p) && 3 == unknown-#memory_int-unknown[p][p] - InvariantResult [Line: 520]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 518]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 51 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 24 SDslu, 71 SDs, 0 SdLazy, 35 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.6s 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 14 PreInvPairs, 16 NumberOfFragments, 28 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 107 ConstructedInterpolants, 9 QuantifiedInterpolants, 14356 SizeOfPredicates, 14 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 113, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9404761904761905, AVG_VARS_REMOVED_DURING_WEAKENING: 0.9523809523809523, AVG_WEAKENED_CONJUNCTS: 0.2857142857142857, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...