/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/forester-heap/dll-circular-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:58:43,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:58:43,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:58:43,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:58:43,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:58:43,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:58:43,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:58:43,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:58:43,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:58:43,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:58:43,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:58:43,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:58:43,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:58:43,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:58:43,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:58:43,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:58:43,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:58:43,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:58:43,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:58:43,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:58:43,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:58:43,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:58:43,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:58:43,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:58:43,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:58:43,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:58:43,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:58:43,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:58:43,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:58:43,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:58:43,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:58:43,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:58:43,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:58:43,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:58:43,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:58:43,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:58:43,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:58:43,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:58:43,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:58:43,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:58:43,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:58:43,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:58:43,442 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:58:43,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:58:43,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:58:43,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:58:43,444 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:58:43,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:58:43,445 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:58:43,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:58:43,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:58:43,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:58:43,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:58:43,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:58:43,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:58:43,446 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:58:43,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:58:43,446 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:58:43,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:58:43,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:58:43,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:58:43,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:58:43,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:58:43,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:58:43,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:58:43,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:58:43,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:58:43,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:58:43,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:58:43,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:58:43,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-06 22:58:43,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:58:43,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:58:43,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:58:43,750 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:58:43,750 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:58:43,751 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-2.i [2019-11-06 22:58:43,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/504391804/4cce9c44d5124d9d916a0e591436a43e/FLAG423240d14 [2019-11-06 22:58:44,369 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:58:44,370 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-2.i [2019-11-06 22:58:44,383 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/504391804/4cce9c44d5124d9d916a0e591436a43e/FLAG423240d14 [2019-11-06 22:58:44,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/504391804/4cce9c44d5124d9d916a0e591436a43e [2019-11-06 22:58:44,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:58:44,645 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:58:44,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:58:44,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:58:44,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:58:44,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:44" (1/1) ... [2019-11-06 22:58:44,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245ee514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:44, skipping insertion in model container [2019-11-06 22:58:44,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:44" (1/1) ... [2019-11-06 22:58:44,662 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:58:44,729 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:58:45,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:58:45,231 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:58:45,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:58:45,344 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:58:45,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:45 WrapperNode [2019-11-06 22:58:45,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:58:45,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:58:45,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:58:45,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:58:45,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:45" (1/1) ... [2019-11-06 22:58:45,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:45" (1/1) ... [2019-11-06 22:58:45,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:45" (1/1) ... [2019-11-06 22:58:45,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:45" (1/1) ... [2019-11-06 22:58:45,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:45" (1/1) ... [2019-11-06 22:58:45,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:45" (1/1) ... [2019-11-06 22:58:45,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:45" (1/1) ... [2019-11-06 22:58:45,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:58:45,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:58:45,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:58:45,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:58:45,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:58:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:58:45,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:58:45,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:58:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-06 22:58:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-06 22:58:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-06 22:58:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-06 22:58:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-06 22:58:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-06 22:58:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-06 22:58:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-06 22:58:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-06 22:58:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-06 22:58:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-06 22:58:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-06 22:58:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-06 22:58:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-06 22:58:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-06 22:58:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-06 22:58:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-06 22:58:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-06 22:58:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-06 22:58:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-06 22:58:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-06 22:58:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-06 22:58:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-06 22:58:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-06 22:58:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-06 22:58:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-06 22:58:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-06 22:58:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-06 22:58:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-06 22:58:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-06 22:58:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-06 22:58:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-06 22:58:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-06 22:58:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-06 22:58:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-06 22:58:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-06 22:58:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-06 22:58:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-06 22:58:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-06 22:58:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-06 22:58:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-06 22:58:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-06 22:58:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-06 22:58:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-06 22:58:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-06 22:58:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-06 22:58:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-06 22:58:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-06 22:58:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-06 22:58:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-06 22:58:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:58:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 22:58:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-06 22:58:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:58:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-06 22:58:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-06 22:58:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-06 22:58:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-06 22:58:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-06 22:58:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-06 22:58:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-06 22:58:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-06 22:58:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-06 22:58:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 22:58:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-06 22:58:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-06 22:58:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-06 22:58:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-06 22:58:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-06 22:58:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-06 22:58:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-06 22:58:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-06 22:58:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-06 22:58:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-06 22:58:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-06 22:58:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-06 22:58:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-06 22:58:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-06 22:58:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-06 22:58:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-06 22:58:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-06 22:58:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-06 22:58:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-06 22:58:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-06 22:58:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-06 22:58:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-06 22:58:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-06 22:58:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-06 22:58:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-06 22:58:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-06 22:58:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-06 22:58:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-06 22:58:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-06 22:58:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-06 22:58:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-06 22:58:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-06 22:58:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-06 22:58:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-06 22:58:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-06 22:58:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-06 22:58:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-06 22:58:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-06 22:58:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-06 22:58:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:58:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:58:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:58:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:58:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:58:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:58:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:58:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:58:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:58:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:58:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:58:46,117 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:58:46,118 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-06 22:58:46,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:46 BoogieIcfgContainer [2019-11-06 22:58:46,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:58:46,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:58:46,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:58:46,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:58:46,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:58:44" (1/3) ... [2019-11-06 22:58:46,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1e8716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:46, skipping insertion in model container [2019-11-06 22:58:46,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:45" (2/3) ... [2019-11-06 22:58:46,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1e8716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:46, skipping insertion in model container [2019-11-06 22:58:46,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:46" (3/3) ... [2019-11-06 22:58:46,127 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-circular-2.i [2019-11-06 22:58:46,137 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:58:46,145 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-06 22:58:46,157 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-06 22:58:46,181 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:58:46,181 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:58:46,181 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:58:46,182 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:58:46,183 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:58:46,183 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:58:46,183 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:58:46,183 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:58:46,201 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-11-06 22:58:46,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-06 22:58:46,207 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:58:46,208 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:58:46,210 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:58:46,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:58:46,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1483997276, now seen corresponding path program 1 times [2019-11-06 22:58:46,226 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:58:46,226 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516814312] [2019-11-06 22:58:46,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:58:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:58:46,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:58:46,370 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516814312] [2019-11-06 22:58:46,371 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:58:46,372 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:58:46,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545362871] [2019-11-06 22:58:46,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:58:46,378 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:58:46,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:58:46,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:58:46,392 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-11-06 22:58:46,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:58:46,417 INFO L93 Difference]: Finished difference Result 70 states and 106 transitions. [2019-11-06 22:58:46,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:58:46,419 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-06 22:58:46,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:58:46,428 INFO L225 Difference]: With dead ends: 70 [2019-11-06 22:58:46,429 INFO L226 Difference]: Without dead ends: 30 [2019-11-06 22:58:46,432 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:58:46,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-06 22:58:46,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-06 22:58:46,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-06 22:58:46,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2019-11-06 22:58:46,469 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 10 [2019-11-06 22:58:46,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:58:46,469 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2019-11-06 22:58:46,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:58:46,469 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2019-11-06 22:58:46,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-06 22:58:46,470 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:58:46,470 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:58:46,471 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:58:46,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:58:46,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1199756337, now seen corresponding path program 1 times [2019-11-06 22:58:46,471 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:58:46,472 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203552051] [2019-11-06 22:58:46,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:58:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:58:46,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:58:46,651 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203552051] [2019-11-06 22:58:46,652 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:58:46,652 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:58:46,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091619859] [2019-11-06 22:58:46,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:58:46,654 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:58:46,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:58:46,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:58:46,655 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 4 states. [2019-11-06 22:58:46,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:58:46,780 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2019-11-06 22:58:46,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:58:46,780 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-06 22:58:46,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:58:46,781 INFO L225 Difference]: With dead ends: 46 [2019-11-06 22:58:46,782 INFO L226 Difference]: Without dead ends: 42 [2019-11-06 22:58:46,783 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:58:46,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-06 22:58:46,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2019-11-06 22:58:46,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-06 22:58:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-11-06 22:58:46,789 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 11 [2019-11-06 22:58:46,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:58:46,790 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-11-06 22:58:46,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:58:46,790 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2019-11-06 22:58:46,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-06 22:58:46,791 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:58:46,791 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:58:46,791 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:58:46,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:58:46,791 INFO L82 PathProgramCache]: Analyzing trace with hash -97127833, now seen corresponding path program 1 times [2019-11-06 22:58:46,792 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:58:46,792 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008180067] [2019-11-06 22:58:46,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:58:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:58:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:58:46,860 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008180067] [2019-11-06 22:58:46,860 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:58:46,861 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:58:46,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420840631] [2019-11-06 22:58:46,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:58:46,861 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:58:46,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:58:46,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:58:46,864 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 3 states. [2019-11-06 22:58:46,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:58:46,893 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2019-11-06 22:58:46,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:58:46,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-06 22:58:46,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:58:46,899 INFO L225 Difference]: With dead ends: 75 [2019-11-06 22:58:46,899 INFO L226 Difference]: Without dead ends: 53 [2019-11-06 22:58:46,901 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:58:46,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-06 22:58:46,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 39. [2019-11-06 22:58:46,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-06 22:58:46,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2019-11-06 22:58:46,920 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 14 [2019-11-06 22:58:46,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:58:46,920 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2019-11-06 22:58:46,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:58:46,920 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2019-11-06 22:58:46,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-06 22:58:46,924 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:58:46,924 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:58:46,925 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:58:46,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:58:46,926 INFO L82 PathProgramCache]: Analyzing trace with hash 2075944349, now seen corresponding path program 1 times [2019-11-06 22:58:46,926 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:58:46,926 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366423739] [2019-11-06 22:58:46,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:58:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:58:47,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:58:47,012 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366423739] [2019-11-06 22:58:47,015 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:58:47,015 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:58:47,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437229715] [2019-11-06 22:58:47,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:58:47,017 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:58:47,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:58:47,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:58:47,018 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 3 states. [2019-11-06 22:58:47,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:58:47,037 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2019-11-06 22:58:47,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:58:47,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-06 22:58:47,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:58:47,039 INFO L225 Difference]: With dead ends: 42 [2019-11-06 22:58:47,039 INFO L226 Difference]: Without dead ends: 40 [2019-11-06 22:58:47,039 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:58:47,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-06 22:58:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-06 22:58:47,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-06 22:58:47,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-11-06 22:58:47,046 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 17 [2019-11-06 22:58:47,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:58:47,046 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-11-06 22:58:47,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:58:47,046 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-11-06 22:58:47,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-06 22:58:47,047 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:58:47,047 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:58:47,047 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:58:47,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:58:47,048 INFO L82 PathProgramCache]: Analyzing trace with hash 2075946271, now seen corresponding path program 1 times [2019-11-06 22:58:47,048 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:58:47,048 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547245435] [2019-11-06 22:58:47,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:58:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:58:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:58:47,309 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547245435] [2019-11-06 22:58:47,309 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:58:47,309 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 22:58:47,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026447714] [2019-11-06 22:58:47,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 22:58:47,311 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:58:47,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 22:58:47,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:58:47,312 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 5 states. [2019-11-06 22:58:47,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:58:47,558 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2019-11-06 22:58:47,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-06 22:58:47,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-06 22:58:47,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:58:47,559 INFO L225 Difference]: With dead ends: 51 [2019-11-06 22:58:47,560 INFO L226 Difference]: Without dead ends: 38 [2019-11-06 22:58:47,560 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:58:47,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-06 22:58:47,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-11-06 22:58:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-06 22:58:47,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2019-11-06 22:58:47,573 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 17 [2019-11-06 22:58:47,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:58:47,576 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2019-11-06 22:58:47,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 22:58:47,576 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2019-11-06 22:58:47,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-06 22:58:47,577 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:58:47,577 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:58:47,578 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:58:47,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:58:47,578 INFO L82 PathProgramCache]: Analyzing trace with hash -351040154, now seen corresponding path program 1 times [2019-11-06 22:58:47,578 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:58:47,579 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242479683] [2019-11-06 22:58:47,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:58:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:58:47,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:58:47,674 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242479683] [2019-11-06 22:58:47,674 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906155668] [2019-11-06 22:58:47,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:58:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:58:47,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-06 22:58:47,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:58:47,902 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-06 22:58:47,902 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 22:58:47,918 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:58:47,918 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-06 22:58:47,919 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-11-06 22:58:47,956 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:58:47,957 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-06 22:58:47,958 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 22:58:47,975 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:58:47,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 22:58:48,044 INFO L341 Elim1Store]: treesize reduction 30, result has 57.7 percent of original size [2019-11-06 22:58:48,045 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 51 [2019-11-06 22:58:48,046 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-06 22:58:48,079 INFO L567 ElimStorePlain]: treesize reduction 24, result has 59.3 percent of original size [2019-11-06 22:58:48,081 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:58:48,082 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:111, output treesize:32 [2019-11-06 22:58:50,124 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 23 [2019-11-06 22:58:50,182 INFO L341 Elim1Store]: treesize reduction 60, result has 29.4 percent of original size [2019-11-06 22:58:50,183 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 41 [2019-11-06 22:58:50,184 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 22:58:50,196 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:58:50,197 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 22:58:50,198 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:51, output treesize:23 [2019-11-06 22:58:52,260 INFO L392 ElimStorePlain]: Different costs {2=[|#memory_$Pointer$.base|], 6=[|v_#memory_$Pointer$.base_22|]} [2019-11-06 22:58:52,265 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:58:52,288 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:58:52,300 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:58:52,300 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 55 [2019-11-06 22:58:52,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 22:58:52,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 22:58:52,305 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-06 22:58:52,327 INFO L567 ElimStorePlain]: treesize reduction 19, result has 32.1 percent of original size [2019-11-06 22:58:52,327 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 22:58:52,328 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:66, output treesize:4 [2019-11-06 22:58:52,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:58:52,330 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:58:52,336 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:58:52,340 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:58:52,340 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:58:52,340 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:18 [2019-11-06 22:58:52,377 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 22:58:52,384 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:58:52,385 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:58:52,385 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:18 [2019-11-06 22:58:52,409 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6400 treesize of output 6368 [2019-11-06 22:58:52,419 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-11-06 22:58:52,937 WARN L191 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 40 [2019-11-06 22:58:52,937 INFO L567 ElimStorePlain]: treesize reduction 6265, result has 1.0 percent of original size [2019-11-06 22:58:52,938 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 22:58:52,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 22:58:52,940 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 22:58:52,943 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 22:58:52,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 22:58:52,949 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 22:58:52,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 22:58:52,958 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2019-11-06 22:58:52,962 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:143, output treesize:89 [2019-11-06 22:58:53,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:58:53,051 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1459702096] [2019-11-06 22:58:53,057 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 18 [2019-11-06 22:58:53,097 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:58:53,098 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:58:53,178 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:58:53,180 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 33 variables. [2019-11-06 22:58:53,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:58:53,184 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:58:53,243 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-06 22:58:53,243 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:58:53,247 INFO L553 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2019-11-06 22:58:53,248 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:58:53,253 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:58:53,254 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 6, 5] total 9 [2019-11-06 22:58:53,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976741762] [2019-11-06 22:58:53,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:58:53,256 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:58:53,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:58:53,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=47, Unknown=1, NotChecked=0, Total=72 [2019-11-06 22:58:53,257 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 2 states. [2019-11-06 22:58:53,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:58:53,260 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2019-11-06 22:58:53,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:58:53,260 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-11-06 22:58:53,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:58:53,261 INFO L225 Difference]: With dead ends: 38 [2019-11-06 22:58:53,261 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:58:53,262 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=24, Invalid=47, Unknown=1, NotChecked=0, Total=72 [2019-11-06 22:58:53,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:58:53,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:58:53,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:58:53,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:58:53,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-06 22:58:53,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:58:53,263 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:58:53,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:58:53,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:58:53,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:58:53,465 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:58:53,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:58:53,562 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:58:53,563 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:58:53,563 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:58:53,563 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:58:53,563 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 22:58:53,563 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:58:53,563 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:58:53,563 INFO L443 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 1024) no Hoare annotation was computed. [2019-11-06 22:58:53,563 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 983 1039) no Hoare annotation was computed. [2019-11-06 22:58:53,564 INFO L443 ceAbstractionStarter]: For program point L1003(lines 1003 1011) no Hoare annotation was computed. [2019-11-06 22:58:53,564 INFO L443 ceAbstractionStarter]: For program point L1003-1(lines 1003 1011) no Hoare annotation was computed. [2019-11-06 22:58:53,564 INFO L443 ceAbstractionStarter]: For program point L995-1(lines 995 1016) no Hoare annotation was computed. [2019-11-06 22:58:53,564 INFO L443 ceAbstractionStarter]: For program point L995-3(lines 995 1016) no Hoare annotation was computed. [2019-11-06 22:58:53,564 INFO L443 ceAbstractionStarter]: For program point L1020-1(line 1020) no Hoare annotation was computed. [2019-11-06 22:58:53,564 INFO L443 ceAbstractionStarter]: For program point L1020-3(line 1020) no Hoare annotation was computed. [2019-11-06 22:58:53,564 INFO L439 ceAbstractionStarter]: At program point L1020-4(line 1020) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset))) (and (= main_~head~0.offset .cse0) (not (= 0 main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= 0 .cse0) (= 1 main_~state~0) (= main_~head~0.base main_~x~0.base) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) main_~head~0.base) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) 1))) [2019-11-06 22:58:53,564 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 983 1039) no Hoare annotation was computed. [2019-11-06 22:58:53,564 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 983 1039) the Hoare annotation is: true [2019-11-06 22:58:53,564 INFO L443 ceAbstractionStarter]: For program point L1005(lines 1005 1010) no Hoare annotation was computed. [2019-11-06 22:58:53,565 INFO L443 ceAbstractionStarter]: For program point L1030-1(lines 1030 1035) no Hoare annotation was computed. [2019-11-06 22:58:53,565 INFO L443 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1020) no Hoare annotation was computed. [2019-11-06 22:58:53,565 INFO L446 ceAbstractionStarter]: At program point L1030-3(lines 1030 1035) the Hoare annotation is: true [2019-11-06 22:58:53,565 INFO L443 ceAbstractionStarter]: For program point L1030-4(lines 1030 1035) no Hoare annotation was computed. [2019-11-06 22:58:53,565 INFO L443 ceAbstractionStarter]: For program point L1022(lines 1022 1026) no Hoare annotation was computed. [2019-11-06 22:58:53,565 INFO L443 ceAbstractionStarter]: For program point L1022-2(lines 984 1039) no Hoare annotation was computed. [2019-11-06 22:58:53,565 INFO L443 ceAbstractionStarter]: For program point L1022-3(lines 1022 1026) no Hoare annotation was computed. [2019-11-06 22:58:53,566 INFO L443 ceAbstractionStarter]: For program point L1015-1(line 1015) no Hoare annotation was computed. [2019-11-06 22:58:53,566 INFO L443 ceAbstractionStarter]: For program point L1015-3(line 1015) no Hoare annotation was computed. [2019-11-06 22:58:53,566 INFO L439 ceAbstractionStarter]: At program point L1015-4(line 1015) the Hoare annotation is: false [2019-11-06 22:58:53,566 INFO L439 ceAbstractionStarter]: At program point L1015-5(lines 995 1016) the Hoare annotation is: false [2019-11-06 22:58:53,566 INFO L443 ceAbstractionStarter]: For program point L1007(lines 1007 1010) no Hoare annotation was computed. [2019-11-06 22:58:53,566 INFO L443 ceAbstractionStarter]: For program point L1024-1(line 1024) no Hoare annotation was computed. [2019-11-06 22:58:53,566 INFO L443 ceAbstractionStarter]: For program point L1024-3(line 1024) no Hoare annotation was computed. [2019-11-06 22:58:53,566 INFO L443 ceAbstractionStarter]: For program point L1024-4(line 1024) no Hoare annotation was computed. [2019-11-06 22:58:53,566 INFO L443 ceAbstractionStarter]: For program point L1024-6(line 1024) no Hoare annotation was computed. [2019-11-06 22:58:53,566 INFO L439 ceAbstractionStarter]: At program point L1024-7(line 1024) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset))) (and (= main_~head~0.offset .cse0) (= main_~head~0.offset main_~x~0.offset) (= 0 .cse0) (= 1 main_~state~0) (= main_~head~0.base main_~x~0.base) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) main_~head~0.base) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) 1))) [2019-11-06 22:58:53,567 INFO L443 ceAbstractionStarter]: For program point L1024-8(line 1024) no Hoare annotation was computed. [2019-11-06 22:58:53,567 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1015) no Hoare annotation was computed. [2019-11-06 22:58:53,574 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,575 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,576 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-06 22:58:53,578 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-06 22:58:53,583 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,583 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,583 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-06 22:58:53,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-06 22:58:53,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-06 22:58:53,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-06 22:58:53,590 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,590 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,591 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-06 22:58:53,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-06 22:58:53,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:58:53 BoogieIcfgContainer [2019-11-06 22:58:53,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:58:53,599 INFO L168 Benchmark]: Toolchain (without parser) took 8951.41 ms. Allocated memory was 144.2 MB in the beginning and 248.5 MB in the end (delta: 104.3 MB). Free memory was 101.0 MB in the beginning and 209.0 MB in the end (delta: -108.1 MB). Peak memory consumption was 120.2 MB. Max. memory is 7.1 GB. [2019-11-06 22:58:53,600 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:58:53,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.74 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 100.6 MB in the beginning and 168.8 MB in the end (delta: -68.2 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-11-06 22:58:53,601 INFO L168 Benchmark]: Boogie Preprocessor took 80.46 ms. Allocated memory is still 201.9 MB. Free memory was 168.8 MB in the beginning and 166.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-11-06 22:58:53,602 INFO L168 Benchmark]: RCFGBuilder took 693.26 ms. Allocated memory is still 201.9 MB. Free memory was 166.0 MB in the beginning and 121.6 MB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:58:53,603 INFO L168 Benchmark]: TraceAbstraction took 7474.31 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 120.9 MB in the beginning and 209.0 MB in the end (delta: -88.1 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2019-11-06 22:58:53,606 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 698.74 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 100.6 MB in the beginning and 168.8 MB in the end (delta: -68.2 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.46 ms. Allocated memory is still 201.9 MB. Free memory was 168.8 MB in the beginning and 166.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 693.26 ms. Allocated memory is still 201.9 MB. Free memory was 166.0 MB in the beginning and 121.6 MB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7474.31 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 120.9 MB in the beginning and 209.0 MB in the end (delta: -88.1 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1024]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1020]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1015]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 1024]: Loop Invariant [2019-11-06 22:58:53,618 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,618 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,619 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-06 22:58:53,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,620 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-06 22:58:53,620 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,620 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,621 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-06 22:58:53,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((head == #memory_$Pointer$[x][head] && head == x) && 0 == #memory_$Pointer$[x][head]) && 1 == state) && head == x) && #memory_$Pointer$[x][head] == head) && unknown-#memory_int-unknown[x][x + 8] == 1 - InvariantResult [Line: 1015]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1030]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1020]: Loop Invariant [2019-11-06 22:58:53,625 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,626 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,626 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-06 22:58:53,626 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,626 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,627 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,627 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-06 22:58:53,627 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,627 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-06 22:58:53,628 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-06 22:58:53,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-06 22:58:53,629 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((head == #memory_$Pointer$[x][head] && !(0 == x)) && head == x) && 0 == #memory_$Pointer$[x][head]) && 1 == state) && head == x) && #memory_$Pointer$[x][head] == head) && unknown-#memory_int-unknown[x][x + 8] == 1 - InvariantResult [Line: 995]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 38 locations, 3 error locations. Result: SAFE, OverallTime: 7.3s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 160 SDtfs, 55 SDslu, 150 SDs, 0 SdLazy, 84 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=4, 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, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 12 NumberOfFragments, 91 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 112 ConstructedInterpolants, 11 QuantifiedInterpolants, 14322 SizeOfPredicates, 8 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 128, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.890625, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0625, AVG_WEAKENED_CONJUNCTS: 0.375, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...