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 0.1.24-13a467a-m [2019-10-15 00:11:24,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:11:24,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:11:24,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:11:24,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:11:24,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:11:24,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:11:24,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:11:24,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:11:24,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:11:24,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:11:24,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:11:24,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:11:24,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:11:24,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:11:24,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:11:24,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:11:24,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:11:24,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:11:24,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:11:24,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:11:24,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:11:24,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:11:24,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:11:24,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:11:24,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:11:24,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:11:24,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:11:24,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:11:24,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:11:24,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:11:24,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:11:24,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:11:24,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:11:24,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:11:24,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:11:24,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:11:24,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:11:24,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:11:24,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:11:24,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:11:24,333 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 [2019-10-15 00:11:24,360 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:11:24,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:11:24,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:11:24,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:11:24,363 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:11:24,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:11:24,363 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:11:24,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:11:24,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:11:24,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:11:24,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:11:24,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:11:24,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:11:24,366 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:11:24,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:11:24,366 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:11:24,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:11:24,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:11:24,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:11:24,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:11:24,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:11:24,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:11:24,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:11:24,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:11:24,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:11:24,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:11:24,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:11:24,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:11:24,368 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 [2019-10-15 00:11:24,658 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:11:24,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:11:24,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:11:24,677 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:11:24,677 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:11:24,678 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/process_queue.i [2019-10-15 00:11:24,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33cbe3c0/328bb1a62a8b49b19069afcce34240a9/FLAGf7423fc0c [2019-10-15 00:11:25,306 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:11:25,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/process_queue.i [2019-10-15 00:11:25,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33cbe3c0/328bb1a62a8b49b19069afcce34240a9/FLAGf7423fc0c [2019-10-15 00:11:25,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33cbe3c0/328bb1a62a8b49b19069afcce34240a9 [2019-10-15 00:11:25,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:11:25,591 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:11:25,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:11:25,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:11:25,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:11:25,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:11:25" (1/1) ... [2019-10-15 00:11:25,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e07cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:25, skipping insertion in model container [2019-10-15 00:11:25,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:11:25" (1/1) ... [2019-10-15 00:11:25,608 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:11:25,653 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:11:26,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:11:26,134 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:11:26,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:11:26,248 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:11:26,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26 WrapperNode [2019-10-15 00:11:26,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:11:26,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:11:26,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:11:26,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:11:26,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (1/1) ... [2019-10-15 00:11:26,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:11:26,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:11:26,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:11:26,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:11:26,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (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 [2019-10-15 00:11:26,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:11:26,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:11:26,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 00:11:26,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 00:11:26,388 INFO L138 BoogieDeclarations]: Found implementation of procedure run_process [2019-10-15 00:11:26,388 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_queue [2019-10-15 00:11:26,388 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_next [2019-10-15 00:11:26,389 INFO L138 BoogieDeclarations]: Found implementation of procedure check_queue [2019-10-15 00:11:26,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:11:26,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:11:26,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:11:26,389 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 00:11:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 00:11:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 00:11:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 00:11:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 00:11:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 00:11:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 00:11:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 00:11:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 00:11:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 00:11:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 00:11:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 00:11:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 00:11:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 00:11:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 00:11:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 00:11:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 00:11:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 00:11:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 00:11:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 00:11:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 00:11:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 00:11:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 00:11:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 00:11:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 00:11:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 00:11:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 00:11:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 00:11:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 00:11:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 00:11:26,395 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 00:11:26,395 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 00:11:26,395 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 00:11:26,395 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 00:11:26,395 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 00:11:26,395 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 00:11:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 00:11:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 00:11:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 00:11:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 00:11:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 00:11:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 00:11:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 00:11:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 00:11:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 00:11:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 00:11:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 00:11:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 00:11:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 00:11:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 00:11:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 00:11:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 00:11:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:11:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 00:11:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 00:11:26,399 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:11:26,399 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 00:11:26,399 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 00:11:26,399 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 00:11:26,399 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 00:11:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 00:11:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 00:11:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 00:11:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 00:11:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 00:11:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 00:11:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 00:11:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 00:11:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 00:11:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 00:11:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 00:11:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 00:11:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 00:11:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 00:11:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 00:11:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 00:11:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 00:11:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 00:11:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 00:11:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 00:11:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 00:11:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 00:11:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 00:11:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 00:11:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 00:11:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 00:11:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 00:11:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 00:11:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 00:11:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 00:11:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 00:11:26,405 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 00:11:26,405 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 00:11:26,405 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 00:11:26,405 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 00:11:26,405 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 00:11:26,405 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 00:11:26,405 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 00:11:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 00:11:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 00:11:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 00:11:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 00:11:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 00:11:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 00:11:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 00:11:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure run_process [2019-10-15 00:11:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_queue [2019-10-15 00:11:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:11:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:11:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure choose_next [2019-10-15 00:11:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:11:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:11:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure check_queue [2019-10-15 00:11:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:11:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:11:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:11:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:11:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:11:26,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:11:26,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:11:27,004 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:11:27,005 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-15 00:11:27,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:11:27 BoogieIcfgContainer [2019-10-15 00:11:27,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:11:27,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:11:27,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:11:27,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:11:27,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:11:25" (1/3) ... [2019-10-15 00:11:27,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212fac21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:11:27, skipping insertion in model container [2019-10-15 00:11:27,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:26" (2/3) ... [2019-10-15 00:11:27,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212fac21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:11:27, skipping insertion in model container [2019-10-15 00:11:27,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:11:27" (3/3) ... [2019-10-15 00:11:27,014 INFO L109 eAbstractionObserver]: Analyzing ICFG process_queue.i [2019-10-15 00:11:27,024 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:11:27,032 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:11:27,044 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:11:27,071 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:11:27,072 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:11:27,072 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:11:27,072 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:11:27,072 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:11:27,073 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:11:27,073 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:11:27,073 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:11:27,091 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-10-15 00:11:27,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-15 00:11:27,097 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:27,098 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:27,100 INFO L410 AbstractCegarLoop]: === Iteration 1 === [check_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:27,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:27,105 INFO L82 PathProgramCache]: Analyzing trace with hash -699499398, now seen corresponding path program 1 times [2019-10-15 00:11:27,114 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:27,114 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931636731] [2019-10-15 00:11:27,114 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,115 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:27,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:27,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931636731] [2019-10-15 00:11:27,397 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:27,397 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:11:27,398 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062869878] [2019-10-15 00:11:27,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:11:27,404 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:27,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:11:27,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:11:27,422 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 6 states. [2019-10-15 00:11:27,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:27,595 INFO L93 Difference]: Finished difference Result 100 states and 134 transitions. [2019-10-15 00:11:27,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:11:27,597 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-10-15 00:11:27,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:27,608 INFO L225 Difference]: With dead ends: 100 [2019-10-15 00:11:27,608 INFO L226 Difference]: Without dead ends: 54 [2019-10-15 00:11:27,612 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 [2019-10-15 00:11:27,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-15 00:11:27,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2019-10-15 00:11:27,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-15 00:11:27,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2019-10-15 00:11:27,654 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 17 [2019-10-15 00:11:27,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:27,654 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2019-10-15 00:11:27,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:11:27,655 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2019-10-15 00:11:27,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-15 00:11:27,656 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:27,656 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] [2019-10-15 00:11:27,656 INFO L410 AbstractCegarLoop]: === Iteration 2 === [check_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:27,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:27,657 INFO L82 PathProgramCache]: Analyzing trace with hash -436646864, now seen corresponding path program 1 times [2019-10-15 00:11:27,657 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:27,657 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720257076] [2019-10-15 00:11:27,658 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,658 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:27,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:28,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:28,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720257076] [2019-10-15 00:11:28,047 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:28,047 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 00:11:28,047 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736009968] [2019-10-15 00:11:28,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 00:11:28,049 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:28,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 00:11:28,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 00:11:28,052 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand 11 states. [2019-10-15 00:11:28,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:28,924 INFO L93 Difference]: Finished difference Result 100 states and 131 transitions. [2019-10-15 00:11:28,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 00:11:28,924 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2019-10-15 00:11:28,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:28,928 INFO L225 Difference]: With dead ends: 100 [2019-10-15 00:11:28,928 INFO L226 Difference]: Without dead ends: 98 [2019-10-15 00:11:28,929 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 [2019-10-15 00:11:28,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-10-15 00:11:28,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 70. [2019-10-15 00:11:28,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-10-15 00:11:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 87 transitions. [2019-10-15 00:11:28,954 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 87 transitions. Word has length 20 [2019-10-15 00:11:28,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:28,954 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 87 transitions. [2019-10-15 00:11:28,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 00:11:28,955 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2019-10-15 00:11:28,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-15 00:11:28,956 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:28,957 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] [2019-10-15 00:11:28,957 INFO L410 AbstractCegarLoop]: === Iteration 3 === [check_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:28,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:28,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1313067226, now seen corresponding path program 1 times [2019-10-15 00:11:28,958 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:28,958 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359662177] [2019-10-15 00:11:28,958 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:28,958 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:28,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:29,356 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359662177] [2019-10-15 00:11:29,356 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670839642] [2019-10-15 00:11:29,356 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 [2019-10-15 00:11:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:29,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 58 conjunts are in the unsatisfiable core [2019-10-15 00:11:29,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 00:11:29,594 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:29,606 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 [2019-10-15 00:11:29,607 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:29,637 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:29,645 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:29,648 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 [2019-10-15 00:11:29,649 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:29,681 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:29,688 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:29,693 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 [2019-10-15 00:11:29,694 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:29,707 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:29,713 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:29,715 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 [2019-10-15 00:11:29,716 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:29,726 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:29,727 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 00:11:29,727 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:94, output treesize:26 [2019-10-15 00:11:31,800 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 [2019-10-15 00:11:31,840 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:31,844 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 [2019-10-15 00:11:31,844 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:31,861 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:31,866 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:31,868 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 [2019-10-15 00:11:31,869 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:31,903 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:31,905 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 00:11:31,905 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:93, output treesize:42 [2019-10-15 00:11:32,127 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 00:11:32,129 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:32,130 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 [2019-10-15 00:11:32,131 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:11:32,142 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:32,146 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:11:32,151 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:32,151 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 [2019-10-15 00:11:32,152 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:32,159 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:32,160 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 00:11:32,160 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:73, output treesize:7 [2019-10-15 00:11:32,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:32,166 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 00:11:32,454 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:11:32,803 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2019-10-15 00:11:32,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:11:32,980 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2019-10-15 00:11:33,389 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-10-15 00:11:33,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:11:33,410 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|]} [2019-10-15 00:11:33,418 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:11:33,423 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:11:33,518 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:33,532 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:11:33,538 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:11:33,625 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:33,638 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:33,642 INFO L496 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:11:33,706 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:33,713 INFO L496 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:11:33,718 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-10-15 00:11:33,753 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:11:33,755 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. [2019-10-15 00:11:33,756 INFO L221 ElimStorePlain]: Needed 9 recursive calls to eliminate 7 variables, input treesize:225, output treesize:229 [2019-10-15 00:11:34,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:34,320 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1297420209] [2019-10-15 00:11:34,327 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 24 [2019-10-15 00:11:34,365 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 00:11:34,366 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 00:11:34,433 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 00:11:34,435 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. [2019-10-15 00:11:34,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:34,440 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 00:11:34,475 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-15 00:11:34,476 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 00:11:34,477 INFO L553 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-10-15 00:11:34,477 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 00:11:34,478 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 00:11:34,478 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12, 11, 11] total 26 [2019-10-15 00:11:34,479 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442565281] [2019-10-15 00:11:34,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 00:11:34,480 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:34,480 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 00:11:34,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 00:11:34,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 00:11:34,481 INFO L87 Difference]: Start difference. First operand 70 states and 87 transitions. Second operand 2 states. [2019-10-15 00:11:34,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:34,485 INFO L93 Difference]: Finished difference Result 70 states and 87 transitions. [2019-10-15 00:11:34,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 00:11:34,485 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-10-15 00:11:34,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:34,486 INFO L225 Difference]: With dead ends: 70 [2019-10-15 00:11:34,486 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 00:11:34,487 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 [2019-10-15 00:11:34,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 00:11:34,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 00:11:34,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 00:11:34,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 00:11:34,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-10-15 00:11:34,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:34,488 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 00:11:34,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 00:11:34,488 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 00:11:34,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 00:11:34,693 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:11:34,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 00:11:34,738 INFO L443 ceAbstractionStarter]: For program point L574(lines 574 577) no Hoare annotation was computed. [2019-10-15 00:11:34,739 INFO L443 ceAbstractionStarter]: For program point L572(lines 572 580) no Hoare annotation was computed. [2019-10-15 00:11:34,739 INFO L443 ceAbstractionStarter]: For program point L572-1(lines 572 580) no Hoare annotation was computed. [2019-10-15 00:11:34,739 INFO L446 ceAbstractionStarter]: At program point L571-2(lines 571 583) the Hoare annotation is: true [2019-10-15 00:11:34,739 INFO L443 ceAbstractionStarter]: For program point L571-3(lines 571 583) no Hoare annotation was computed. [2019-10-15 00:11:34,739 INFO L443 ceAbstractionStarter]: For program point choose_nextFINAL(lines 567 585) no Hoare annotation was computed. [2019-10-15 00:11:34,739 INFO L443 ceAbstractionStarter]: For program point choose_nextEXIT(lines 567 585) no Hoare annotation was computed. [2019-10-15 00:11:34,739 INFO L446 ceAbstractionStarter]: At program point choose_nextENTRY(lines 567 585) the Hoare annotation is: true [2019-10-15 00:11:34,739 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 00:11:34,739 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 00:11:34,740 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 00:11:34,740 INFO L446 ceAbstractionStarter]: At program point append_to_queueENTRY(lines 563 566) the Hoare annotation is: true [2019-10-15 00:11:34,740 INFO L443 ceAbstractionStarter]: For program point append_to_queueFINAL(lines 563 566) no Hoare annotation was computed. [2019-10-15 00:11:34,740 INFO L443 ceAbstractionStarter]: For program point append_to_queueEXIT(lines 563 566) no Hoare annotation was computed. [2019-10-15 00:11:34,740 INFO L446 ceAbstractionStarter]: At program point run_processENTRY(line 562) the Hoare annotation is: true [2019-10-15 00:11:34,740 INFO L443 ceAbstractionStarter]: For program point run_processFINAL(line 562) no Hoare annotation was computed. [2019-10-15 00:11:34,740 INFO L443 ceAbstractionStarter]: For program point run_processEXIT(line 562) no Hoare annotation was computed. [2019-10-15 00:11:34,740 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2019-10-15 00:11:34,740 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2019-10-15 00:11:34,740 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2019-10-15 00:11:34,740 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2019-10-15 00:11:34,741 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2019-10-15 00:11:34,741 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2019-10-15 00:11:34,741 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 00:11:34,741 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 00:11:34,741 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 00:11:34,741 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 00:11:34,741 INFO L443 ceAbstractionStarter]: For program point L601(lines 601 605) no Hoare annotation was computed. [2019-10-15 00:11:34,741 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 591 608) no Hoare annotation was computed. [2019-10-15 00:11:34,742 INFO L443 ceAbstractionStarter]: For program point L601-2(lines 595 605) no Hoare annotation was computed. [2019-10-15 00:11:34,742 INFO L443 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2019-10-15 00:11:34,742 INFO L443 ceAbstractionStarter]: For program point L595-2(lines 595 605) no Hoare annotation was computed. [2019-10-15 00:11:34,742 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 591 608) no Hoare annotation was computed. [2019-10-15 00:11:34,742 INFO L439 ceAbstractionStarter]: At program point L606(line 606) the Hoare annotation is: false [2019-10-15 00:11:34,742 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 591 608) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2019-10-15 00:11:34,742 INFO L443 ceAbstractionStarter]: For program point L606-1(line 606) no Hoare annotation was computed. [2019-10-15 00:11:34,743 INFO L439 ceAbstractionStarter]: At program point L604(line 604) the Hoare annotation is: false [2019-10-15 00:11:34,743 INFO L443 ceAbstractionStarter]: For program point L604-1(line 604) no Hoare annotation was computed. [2019-10-15 00:11:34,743 INFO L439 ceAbstractionStarter]: At program point L602(line 602) the Hoare annotation is: false [2019-10-15 00:11:34,743 INFO L443 ceAbstractionStarter]: For program point L602-1(line 602) no Hoare annotation was computed. [2019-10-15 00:11:34,744 INFO L439 ceAbstractionStarter]: At program point L600(line 600) the Hoare annotation is: false [2019-10-15 00:11:34,745 INFO L443 ceAbstractionStarter]: For program point L594-1(lines 594 607) no Hoare annotation was computed. [2019-10-15 00:11:34,745 INFO L439 ceAbstractionStarter]: At program point L594-3(lines 594 607) the Hoare annotation is: false [2019-10-15 00:11:34,745 INFO L443 ceAbstractionStarter]: For program point L594-4(lines 594 607) no Hoare annotation was computed. [2019-10-15 00:11:34,745 INFO L446 ceAbstractionStarter]: At program point check_queueENTRY(lines 586 590) the Hoare annotation is: true [2019-10-15 00:11:34,745 INFO L443 ceAbstractionStarter]: For program point check_queueErr0ASSERT_VIOLATIONERROR_FUNCTION(line 589) no Hoare annotation was computed. [2019-10-15 00:11:34,746 INFO L443 ceAbstractionStarter]: For program point check_queueEXIT(lines 586 590) no Hoare annotation was computed. [2019-10-15 00:11:34,746 INFO L443 ceAbstractionStarter]: For program point L589(line 589) no Hoare annotation was computed. [2019-10-15 00:11:34,746 INFO L443 ceAbstractionStarter]: For program point L588(lines 588 589) no Hoare annotation was computed. [2019-10-15 00:11:34,746 INFO L443 ceAbstractionStarter]: For program point L587-2(lines 587 589) no Hoare annotation was computed. [2019-10-15 00:11:34,746 INFO L446 ceAbstractionStarter]: At program point L587-3(lines 587 589) the Hoare annotation is: true [2019-10-15 00:11:34,746 INFO L443 ceAbstractionStarter]: For program point L587-4(lines 586 590) no Hoare annotation was computed. [2019-10-15 00:11:34,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:11:34 BoogieIcfgContainer [2019-10-15 00:11:34,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 00:11:34,762 INFO L168 Benchmark]: Toolchain (without parser) took 9169.85 ms. Allocated memory was 146.8 MB in the beginning and 270.5 MB in the end (delta: 123.7 MB). Free memory was 103.5 MB in the beginning and 190.0 MB in the end (delta: -86.5 MB). Peak memory consumption was 37.2 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:34,762 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 00:11:34,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 656.59 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 103.2 MB in the beginning and 169.6 MB in the end (delta: -66.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:34,764 INFO L168 Benchmark]: Boogie Preprocessor took 80.54 ms. Allocated memory is still 204.5 MB. Free memory was 169.6 MB in the beginning and 166.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:34,765 INFO L168 Benchmark]: RCFGBuilder took 675.95 ms. Allocated memory is still 204.5 MB. Free memory was 166.9 MB in the beginning and 119.2 MB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. [2019-10-15 00:11:34,765 INFO L168 Benchmark]: TraceAbstraction took 7752.60 ms. Allocated memory was 204.5 MB in the beginning and 270.5 MB in the end (delta: 66.1 MB). Free memory was 118.6 MB in the beginning and 190.0 MB in the end (delta: -71.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 00:11:34,768 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 656.59 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 103.2 MB in the beginning and 169.6 MB in the end (delta: -66.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.54 ms. Allocated memory is still 204.5 MB. Free memory was 169.6 MB in the beginning and 166.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 675.95 ms. Allocated memory is still 204.5 MB. Free memory was 166.9 MB in the beginning and 119.2 MB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7752.60 ms. Allocated memory was 204.5 MB in the beginning and 270.5 MB in the end (delta: 66.1 MB). Free memory was 118.6 MB in the beginning and 190.0 MB in the end (delta: -71.4 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: 7.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.0s, 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, 5.6s 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]: 113, 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...