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/heap-data/process_queue.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:12:24,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:12:24,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:12:24,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:12:24,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:12:24,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:12:24,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:12:24,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:12:24,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:12:24,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:12:24,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:12:24,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:12:24,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:12:24,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:12:24,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:12:24,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:12:24,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:12:24,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:12:24,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:12:24,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:12:24,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:12:24,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:12:24,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:12:24,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:12:24,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:12:24,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:12:24,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:12:24,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:12:24,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:12:24,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:12:24,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:12:24,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:12:24,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:12:24,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:12:24,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:12:24,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:12:24,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:12:24,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:12:24,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:12:24,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:12:24,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:12:24,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 20:12:24,082 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:12:24,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:12:24,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:12:24,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:12:24,084 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:12:24,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:12:24,084 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:12:24,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:12:24,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:12:24,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:12:24,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:12:24,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:12:24,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:12:24,086 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:12:24,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:12:24,086 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:12:24,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:12:24,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:12:24,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:12:24,087 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:12:24,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:12:24,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:12:24,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:12:24,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:12:24,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:12:24,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:12:24,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:12:24,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:12:24,089 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 [2019-10-13 20:12:24,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:12:24,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:12:24,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:12:24,417 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:12:24,418 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:12:24,418 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/process_queue.i [2019-10-13 20:12:24,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9c9927b/c2631c465d96428dafbc427b922a7ec7/FLAG3e501dcaa [2019-10-13 20:12:25,050 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:12:25,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/process_queue.i [2019-10-13 20:12:25,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9c9927b/c2631c465d96428dafbc427b922a7ec7/FLAG3e501dcaa [2019-10-13 20:12:25,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9c9927b/c2631c465d96428dafbc427b922a7ec7 [2019-10-13 20:12:25,314 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:12:25,316 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:12:25,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:12:25,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:12:25,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:12:25,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:12:25" (1/1) ... [2019-10-13 20:12:25,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ea241b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:25, skipping insertion in model container [2019-10-13 20:12:25,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:12:25" (1/1) ... [2019-10-13 20:12:25,332 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:12:25,384 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:12:25,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:12:25,872 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:12:25,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:12:25,997 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:12:25,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:25 WrapperNode [2019-10-13 20:12:25,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:12:25,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:12:25,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:12:25,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:12:26,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:25" (1/1) ... [2019-10-13 20:12:26,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:25" (1/1) ... [2019-10-13 20:12:26,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:25" (1/1) ... [2019-10-13 20:12:26,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:25" (1/1) ... [2019-10-13 20:12:26,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:25" (1/1) ... [2019-10-13 20:12:26,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:25" (1/1) ... [2019-10-13 20:12:26,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:25" (1/1) ... [2019-10-13 20:12:26,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:12:26,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:12:26,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:12:26,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:12:26,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:12:26,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:12:26,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:12:26,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 20:12:26,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 20:12:26,127 INFO L138 BoogieDeclarations]: Found implementation of procedure run_process [2019-10-13 20:12:26,127 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_queue [2019-10-13 20:12:26,128 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_next [2019-10-13 20:12:26,128 INFO L138 BoogieDeclarations]: Found implementation of procedure check_queue [2019-10-13 20:12:26,128 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:12:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:12:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:12:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 20:12:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 20:12:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 20:12:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 20:12:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 20:12:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 20:12:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 20:12:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 20:12:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 20:12:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 20:12:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 20:12:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 20:12:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 20:12:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 20:12:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 20:12:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 20:12:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 20:12:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 20:12:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 20:12:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 20:12:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 20:12:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 20:12:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 20:12:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 20:12:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 20:12:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 20:12:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 20:12:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 20:12:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 20:12:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 20:12:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 20:12:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 20:12:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 20:12:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 20:12:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 20:12:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 20:12:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 20:12:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 20:12:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 20:12:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 20:12:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 20:12:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 20:12:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 20:12:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 20:12:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 20:12:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 20:12:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 20:12:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 20:12:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 20:12:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 20:12:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 20:12:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 20:12:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:12:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:12:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 20:12:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:12:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 20:12:26,138 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 20:12:26,138 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 20:12:26,138 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 20:12:26,138 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 20:12:26,138 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 20:12:26,138 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 20:12:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 20:12:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 20:12:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 20:12:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 20:12:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 20:12:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 20:12:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 20:12:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 20:12:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 20:12:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 20:12:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 20:12:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 20:12:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 20:12:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 20:12:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 20:12:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 20:12:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 20:12:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 20:12:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 20:12:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 20:12:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 20:12:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 20:12:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 20:12:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 20:12:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 20:12:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 20:12:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 20:12:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 20:12:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 20:12:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 20:12:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 20:12:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 20:12:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 20:12:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 20:12:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 20:12:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 20:12:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 20:12:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 20:12:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 20:12:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 20:12:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 20:12:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 20:12:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure run_process [2019-10-13 20:12:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_queue [2019-10-13 20:12:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:12:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:12:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure choose_next [2019-10-13 20:12:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:12:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:12:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure check_queue [2019-10-13 20:12:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:12:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:12:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:12:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:12:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:12:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:12:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:12:26,775 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:12:26,776 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-13 20:12:26,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:12:26 BoogieIcfgContainer [2019-10-13 20:12:26,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:12:26,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:12:26,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:12:26,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:12:26,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:12:25" (1/3) ... [2019-10-13 20:12:26,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8999683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:12:26, skipping insertion in model container [2019-10-13 20:12:26,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:25" (2/3) ... [2019-10-13 20:12:26,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8999683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:12:26, skipping insertion in model container [2019-10-13 20:12:26,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:12:26" (3/3) ... [2019-10-13 20:12:26,792 INFO L109 eAbstractionObserver]: Analyzing ICFG process_queue.i [2019-10-13 20:12:26,804 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:12:26,810 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:12:26,822 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:12:26,850 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:12:26,850 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:12:26,850 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:12:26,851 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:12:26,851 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:12:26,851 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:12:26,851 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:12:26,851 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:12:26,867 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-10-13 20:12:26,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 20:12:26,875 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:26,876 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:26,878 INFO L410 AbstractCegarLoop]: === Iteration 1 === [check_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:26,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:26,884 INFO L82 PathProgramCache]: Analyzing trace with hash -699499398, now seen corresponding path program 1 times [2019-10-13 20:12:26,894 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:26,894 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650784122] [2019-10-13 20:12:26,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:26,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:26,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:27,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:27,156 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650784122] [2019-10-13 20:12:27,157 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:12:27,159 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 20:12:27,160 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275908594] [2019-10-13 20:12:27,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 20:12:27,169 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:27,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 20:12:27,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:12:27,194 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 6 states. [2019-10-13 20:12:27,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:27,403 INFO L93 Difference]: Finished difference Result 100 states and 134 transitions. [2019-10-13 20:12:27,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:12:27,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-10-13 20:12:27,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:27,416 INFO L225 Difference]: With dead ends: 100 [2019-10-13 20:12:27,416 INFO L226 Difference]: Without dead ends: 54 [2019-10-13 20:12:27,420 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:12:27,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-13 20:12:27,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2019-10-13 20:12:27,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-13 20:12:27,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2019-10-13 20:12:27,471 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 17 [2019-10-13 20:12:27,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:27,471 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2019-10-13 20:12:27,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 20:12:27,472 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2019-10-13 20:12:27,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-13 20:12:27,473 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:27,473 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:27,474 INFO L410 AbstractCegarLoop]: === Iteration 2 === [check_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:27,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:27,474 INFO L82 PathProgramCache]: Analyzing trace with hash -436646864, now seen corresponding path program 1 times [2019-10-13 20:12:27,474 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:27,475 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354529520] [2019-10-13 20:12:27,475 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:27,475 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:27,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:27,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:27,906 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354529520] [2019-10-13 20:12:27,907 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:12:27,907 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 20:12:27,907 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556616281] [2019-10-13 20:12:27,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 20:12:27,913 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:27,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 20:12:27,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 20:12:27,914 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand 11 states. [2019-10-13 20:12:28,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:28,785 INFO L93 Difference]: Finished difference Result 100 states and 131 transitions. [2019-10-13 20:12:28,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 20:12:28,785 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2019-10-13 20:12:28,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:28,795 INFO L225 Difference]: With dead ends: 100 [2019-10-13 20:12:28,795 INFO L226 Difference]: Without dead ends: 98 [2019-10-13 20:12:28,798 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2019-10-13 20:12:28,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-10-13 20:12:28,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 70. [2019-10-13 20:12:28,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-10-13 20:12:28,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 87 transitions. [2019-10-13 20:12:28,817 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 87 transitions. Word has length 20 [2019-10-13 20:12:28,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:28,817 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 87 transitions. [2019-10-13 20:12:28,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 20:12:28,818 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2019-10-13 20:12:28,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-13 20:12:28,820 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:28,820 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:28,820 INFO L410 AbstractCegarLoop]: === Iteration 3 === [check_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:28,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:28,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1313067226, now seen corresponding path program 1 times [2019-10-13 20:12:28,821 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:28,821 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137359337] [2019-10-13 20:12:28,821 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:28,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:28,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:29,215 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137359337] [2019-10-13 20:12:29,215 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570040779] [2019-10-13 20:12:29,216 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 [2019-10-13 20:12:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:29,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 58 conjunts are in the unsatisfiable core [2019-10-13 20:12:29,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:12:29,502 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 20:12:29,518 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 23 treesize of output 11 [2019-10-13 20:12:29,520 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:29,550 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:29,566 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 20:12:29,568 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 27 treesize of output 11 [2019-10-13 20:12:29,569 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:29,592 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:29,599 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 20:12:29,602 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 23 treesize of output 11 [2019-10-13 20:12:29,602 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:29,617 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:29,622 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 20:12:29,624 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 27 treesize of output 11 [2019-10-13 20:12:29,624 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:29,634 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:29,635 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 20:12:29,635 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:94, output treesize:26 [2019-10-13 20:12:31,705 WARN L860 $PredicateComparison]: unable to prove that (exists ((append_to_queue_~n.base Int)) (let ((.cse1 (+ |c_append_to_queue_#in~n.offset| 8))) (and (<= |c_append_to_queue_#in~n.base| append_to_queue_~n.base) (= (let ((.cse0 (store |c_old(#memory_$Pointer$.offset)| append_to_queue_~n.base (store (select |c_old(#memory_$Pointer$.offset)| append_to_queue_~n.base) .cse1 (select (select |c_old(#memory_$Pointer$.offset)| |c_append_to_queue_#in~q.base|) |c_append_to_queue_#in~q.offset|))))) (store .cse0 |c_append_to_queue_#in~q.base| (store (select .cse0 |c_append_to_queue_#in~q.base|) |c_append_to_queue_#in~q.offset| |c_append_to_queue_#in~n.offset|))) |c_#memory_$Pointer$.offset|) (= (let ((.cse2 (store |c_old(#memory_$Pointer$.base)| append_to_queue_~n.base (store (select |c_old(#memory_$Pointer$.base)| append_to_queue_~n.base) .cse1 (select (select |c_old(#memory_$Pointer$.base)| |c_append_to_queue_#in~q.base|) |c_append_to_queue_#in~q.offset|))))) (store .cse2 |c_append_to_queue_#in~q.base| (store (select .cse2 |c_append_to_queue_#in~q.base|) |c_append_to_queue_#in~q.offset| append_to_queue_~n.base))) |c_#memory_$Pointer$.base|)))) is different from true [2019-10-13 20:12:31,748 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 20:12:31,750 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 43 treesize of output 18 [2019-10-13 20:12:31,751 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:31,773 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:31,778 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 20:12:31,781 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 43 treesize of output 18 [2019-10-13 20:12:31,781 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:31,795 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:31,796 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 20:12:31,797 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:93, output treesize:42 [2019-10-13 20:12:32,017 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-13 20:12:32,019 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:32,019 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 38 [2019-10-13 20:12:32,021 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:32,033 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:32,042 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 20:12:32,067 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:32,068 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 23 [2019-10-13 20:12:32,069 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:32,075 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:32,076 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 20:12:32,076 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:73, output treesize:7 [2019-10-13 20:12:32,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:32,082 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:12:32,399 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:12:32,747 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2019-10-13 20:12:32,919 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:12:32,927 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2019-10-13 20:12:33,624 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-10-13 20:12:33,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:12:33,642 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_25|, |v_#memory_$Pointer$.offset_25|], 6=[|v_#memory_$Pointer$.base_35|, |v_#memory_$Pointer$.offset_35|]} [2019-10-13 20:12:33,656 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:33,663 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:33,750 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:33,758 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:33,765 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:33,839 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:33,854 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:33,860 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:33,905 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:33,911 INFO L496 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:33,917 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:33,957 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:33,959 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars, End of recursive call: 8 dim-0 vars, and 2 xjuncts. [2019-10-13 20:12:33,959 INFO L221 ElimStorePlain]: Needed 9 recursive calls to eliminate 7 variables, input treesize:225, output treesize:229 [2019-10-13 20:12:34,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:34,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1579454922] [2019-10-13 20:12:34,586 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 24 [2019-10-13 20:12:34,624 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 20:12:34,625 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 20:12:34,684 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 20:12:34,686 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 32 variables. [2019-10-13 20:12:34,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:34,690 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 20:12:34,724 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 20:12:34,724 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 20:12:34,725 INFO L553 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-10-13 20:12:34,726 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 20:12:34,726 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 20:12:34,726 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12, 11, 11] total 26 [2019-10-13 20:12:34,727 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742988978] [2019-10-13 20:12:34,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 20:12:34,728 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:34,728 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 20:12:34,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 20:12:34,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 20:12:34,743 INFO L87 Difference]: Start difference. First operand 70 states and 87 transitions. Second operand 2 states. [2019-10-13 20:12:34,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:34,747 INFO L93 Difference]: Finished difference Result 70 states and 87 transitions. [2019-10-13 20:12:34,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 20:12:34,748 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-10-13 20:12:34,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:34,748 INFO L225 Difference]: With dead ends: 70 [2019-10-13 20:12:34,748 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 20:12:34,749 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 20:12:34,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 20:12:34,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 20:12:34,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 20:12:34,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 20:12:34,751 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-10-13 20:12:34,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:34,752 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 20:12:34,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 20:12:34,752 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 20:12:34,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 20:12:34,953 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:12:34,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 20:12:34,992 INFO L443 ceAbstractionStarter]: For program point L574(lines 574 577) no Hoare annotation was computed. [2019-10-13 20:12:34,993 INFO L443 ceAbstractionStarter]: For program point L572(lines 572 580) no Hoare annotation was computed. [2019-10-13 20:12:34,993 INFO L443 ceAbstractionStarter]: For program point L572-1(lines 572 580) no Hoare annotation was computed. [2019-10-13 20:12:34,993 INFO L446 ceAbstractionStarter]: At program point L571-2(lines 571 583) the Hoare annotation is: true [2019-10-13 20:12:34,993 INFO L443 ceAbstractionStarter]: For program point L571-3(lines 571 583) no Hoare annotation was computed. [2019-10-13 20:12:34,993 INFO L443 ceAbstractionStarter]: For program point choose_nextFINAL(lines 567 585) no Hoare annotation was computed. [2019-10-13 20:12:34,993 INFO L443 ceAbstractionStarter]: For program point choose_nextEXIT(lines 567 585) no Hoare annotation was computed. [2019-10-13 20:12:34,993 INFO L446 ceAbstractionStarter]: At program point choose_nextENTRY(lines 567 585) the Hoare annotation is: true [2019-10-13 20:12:34,993 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 20:12:34,993 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 20:12:34,994 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 20:12:34,994 INFO L446 ceAbstractionStarter]: At program point append_to_queueENTRY(lines 563 566) the Hoare annotation is: true [2019-10-13 20:12:34,994 INFO L443 ceAbstractionStarter]: For program point append_to_queueFINAL(lines 563 566) no Hoare annotation was computed. [2019-10-13 20:12:34,994 INFO L443 ceAbstractionStarter]: For program point append_to_queueEXIT(lines 563 566) no Hoare annotation was computed. [2019-10-13 20:12:34,994 INFO L446 ceAbstractionStarter]: At program point run_processENTRY(line 562) the Hoare annotation is: true [2019-10-13 20:12:34,994 INFO L443 ceAbstractionStarter]: For program point run_processFINAL(line 562) no Hoare annotation was computed. [2019-10-13 20:12:34,994 INFO L443 ceAbstractionStarter]: For program point run_processEXIT(line 562) no Hoare annotation was computed. [2019-10-13 20:12:34,994 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2019-10-13 20:12:34,994 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2019-10-13 20:12:34,994 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2019-10-13 20:12:34,995 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2019-10-13 20:12:34,995 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2019-10-13 20:12:34,995 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2019-10-13 20:12:34,995 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 20:12:34,995 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 20:12:34,995 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 20:12:34,995 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 20:12:34,995 INFO L443 ceAbstractionStarter]: For program point L601(lines 601 605) no Hoare annotation was computed. [2019-10-13 20:12:34,995 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 591 608) no Hoare annotation was computed. [2019-10-13 20:12:34,996 INFO L443 ceAbstractionStarter]: For program point L601-2(lines 595 605) no Hoare annotation was computed. [2019-10-13 20:12:34,996 INFO L443 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2019-10-13 20:12:34,996 INFO L443 ceAbstractionStarter]: For program point L595-2(lines 595 605) no Hoare annotation was computed. [2019-10-13 20:12:34,996 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 591 608) no Hoare annotation was computed. [2019-10-13 20:12:34,996 INFO L439 ceAbstractionStarter]: At program point L606(line 606) the Hoare annotation is: false [2019-10-13 20:12:34,996 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 591 608) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2019-10-13 20:12:34,997 INFO L443 ceAbstractionStarter]: For program point L606-1(line 606) no Hoare annotation was computed. [2019-10-13 20:12:34,997 INFO L439 ceAbstractionStarter]: At program point L604(line 604) the Hoare annotation is: false [2019-10-13 20:12:34,997 INFO L443 ceAbstractionStarter]: For program point L604-1(line 604) no Hoare annotation was computed. [2019-10-13 20:12:34,997 INFO L439 ceAbstractionStarter]: At program point L602(line 602) the Hoare annotation is: false [2019-10-13 20:12:34,997 INFO L443 ceAbstractionStarter]: For program point L602-1(line 602) no Hoare annotation was computed. [2019-10-13 20:12:34,997 INFO L439 ceAbstractionStarter]: At program point L600(line 600) the Hoare annotation is: false [2019-10-13 20:12:34,997 INFO L443 ceAbstractionStarter]: For program point L594-1(lines 594 607) no Hoare annotation was computed. [2019-10-13 20:12:34,997 INFO L439 ceAbstractionStarter]: At program point L594-3(lines 594 607) the Hoare annotation is: false [2019-10-13 20:12:34,997 INFO L443 ceAbstractionStarter]: For program point L594-4(lines 594 607) no Hoare annotation was computed. [2019-10-13 20:12:34,998 INFO L446 ceAbstractionStarter]: At program point check_queueENTRY(lines 586 590) the Hoare annotation is: true [2019-10-13 20:12:34,998 INFO L443 ceAbstractionStarter]: For program point check_queueEXIT(lines 586 590) no Hoare annotation was computed. [2019-10-13 20:12:34,998 INFO L443 ceAbstractionStarter]: For program point check_queueErr0ASSERT_VIOLATIONERROR_FUNCTION(line 589) no Hoare annotation was computed. [2019-10-13 20:12:34,998 INFO L443 ceAbstractionStarter]: For program point L589(line 589) no Hoare annotation was computed. [2019-10-13 20:12:34,998 INFO L443 ceAbstractionStarter]: For program point L588(lines 588 589) no Hoare annotation was computed. [2019-10-13 20:12:34,998 INFO L443 ceAbstractionStarter]: For program point L587-2(lines 587 589) no Hoare annotation was computed. [2019-10-13 20:12:34,998 INFO L446 ceAbstractionStarter]: At program point L587-3(lines 587 589) the Hoare annotation is: true [2019-10-13 20:12:34,999 INFO L443 ceAbstractionStarter]: For program point L587-4(lines 586 590) no Hoare annotation was computed. [2019-10-13 20:12:35,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:12:35 BoogieIcfgContainer [2019-10-13 20:12:35,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 20:12:35,009 INFO L168 Benchmark]: Toolchain (without parser) took 9693.85 ms. Allocated memory was 144.2 MB in the beginning and 281.0 MB in the end (delta: 136.8 MB). Free memory was 101.3 MB in the beginning and 237.5 MB in the end (delta: -136.2 MB). Peak memory consumption was 687.9 kB. Max. memory is 7.1 GB. [2019-10-13 20:12:35,010 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 20:12:35,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.02 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 101.1 MB in the beginning and 167.6 MB in the end (delta: -66.5 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:35,012 INFO L168 Benchmark]: Boogie Preprocessor took 70.94 ms. Allocated memory is still 201.9 MB. Free memory was 167.6 MB in the beginning and 164.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:35,013 INFO L168 Benchmark]: RCFGBuilder took 709.39 ms. Allocated memory is still 201.9 MB. Free memory was 164.2 MB in the beginning and 116.7 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:35,014 INFO L168 Benchmark]: TraceAbstraction took 8227.15 ms. Allocated memory was 201.9 MB in the beginning and 281.0 MB in the end (delta: 79.2 MB). Free memory was 116.0 MB in the beginning and 237.5 MB in the end (delta: -121.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 20:12:35,017 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 681.02 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 101.1 MB in the beginning and 167.6 MB in the end (delta: -66.5 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.94 ms. Allocated memory is still 201.9 MB. Free memory was 167.6 MB in the beginning and 164.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 709.39 ms. Allocated memory is still 201.9 MB. Free memory was 164.2 MB in the beginning and 116.7 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8227.15 ms. Allocated memory was 201.9 MB in the beginning and 281.0 MB in the end (delta: 79.2 MB). Free memory was 116.0 MB in the beginning and 237.5 MB in the end (delta: -121.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 589]: 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: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 52 locations, 1 error locations. Result: SAFE, OverallTime: 8.1s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 96 SDtfs, 91 SDslu, 354 SDs, 0 SdLazy, 477 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 29 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 26 PreInvPairs, 26 NumberOfFragments, 17 HoareAnnotationTreeSize, 26 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 2 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 15 QuantifiedInterpolants, 72197 SizeOfPredicates, 22 NumberOfNonLiveVariables, 138 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 104, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9659090909090909, AVG_VARS_REMOVED_DURING_WEAKENING: 1.5909090909090908, AVG_WEAKENED_CONJUNCTS: 0.2727272727272727, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...