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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-rb-cnstr_1-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:47:02,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:47:02,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:47:02,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:47:02,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:47:02,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:47:02,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:47:02,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:47:02,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:47:02,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:47:02,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:47:02,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:47:02,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:47:02,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:47:02,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:47:02,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:47:02,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:47:02,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:47:02,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:47:02,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:47:02,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:47:02,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:47:02,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:47:02,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:47:02,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:47:02,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:47:02,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:47:02,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:47:02,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:47:02,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:47:02,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:47:02,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:47:02,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:47:02,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:47:02,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:47:02,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:47:02,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:47:02,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:47:02,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:47:02,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:47:02,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:47:02,657 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:47:02,677 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:47:02,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:47:02,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:47:02,678 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:47:02,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:47:02,678 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:47:02,679 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:47:02,679 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:47:02,679 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:47:02,679 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:47:02,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:47:02,680 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:47:02,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:47:02,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:47:02,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:47:02,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:47:02,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:47:02,682 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:47:02,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:47:02,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:47:02,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:47:02,682 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:47:02,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:47:02,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:47:02,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:47:02,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:47:02,684 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:47:02,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:47:02,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:47:02,685 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:47:02,738 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:47:02,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:47:02,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:47:02,763 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:47:02,764 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:47:02,765 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-cnstr_1-1.i [2019-09-10 01:47:02,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2e0fd9f/b95fefd3df524749be43b74ba41adcbe/FLAGe09cbbc7a [2019-09-10 01:47:03,380 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:47:03,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-cnstr_1-1.i [2019-09-10 01:47:03,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2e0fd9f/b95fefd3df524749be43b74ba41adcbe/FLAGe09cbbc7a [2019-09-10 01:47:03,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2e0fd9f/b95fefd3df524749be43b74ba41adcbe [2019-09-10 01:47:03,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:47:03,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:47:03,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:03,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:47:03,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:47:03,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:03" (1/1) ... [2019-09-10 01:47:03,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e135cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:03, skipping insertion in model container [2019-09-10 01:47:03,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:03" (1/1) ... [2019-09-10 01:47:03,717 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:47:03,774 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:47:04,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:04,240 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:47:04,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:04,351 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:47:04,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:04 WrapperNode [2019-09-10 01:47:04,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:04,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:47:04,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:47:04,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:47:04,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:04" (1/1) ... [2019-09-10 01:47:04,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:04" (1/1) ... [2019-09-10 01:47:04,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:04" (1/1) ... [2019-09-10 01:47:04,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:04" (1/1) ... [2019-09-10 01:47:04,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:04" (1/1) ... [2019-09-10 01:47:04,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:04" (1/1) ... [2019-09-10 01:47:04,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:04" (1/1) ... [2019-09-10 01:47:04,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:47:04,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:47:04,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:47:04,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:47:04,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:04" (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 [2019-09-10 01:47:04,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:47:04,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:47:04,505 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:47:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:47:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:47:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:47:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:47:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:47:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:47:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:47:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:47:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:47:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:47:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:47:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:47:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:47:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:47:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:47:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:47:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:47:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:47:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:47:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:47:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:47:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:47:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:47:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:47:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:47:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:47:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:47:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:47:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:47:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:47:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:47:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:47:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:47:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:47:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:47:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:47:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:47:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:47:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:47:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:47:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:47:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:47:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:47:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:47:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:47:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:47:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:47:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:47:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:47:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:47:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:47:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:47:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:47:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:47:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:47:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:47:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:47:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:47:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:47:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:47:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:47:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:47:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:47:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:47:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:47:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:47:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:47:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:47:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:47:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:47:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:47:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:47:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:47:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:47:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:47:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:47:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:47:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:47:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:47:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:47:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:47:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:47:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:47:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:47:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:47:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:47:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:47:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:47:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:47:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:47:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:47:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:47:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:47:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:47:04,520 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:47:04,520 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:47:04,520 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:47:04,520 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:47:04,520 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:47:04,520 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:47:04,520 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:47:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:47:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:47:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:47:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:47:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:47:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:47:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:47:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:47:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:47:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:47:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:47:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:47:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:47:05,154 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:47:05,154 INFO L283 CfgBuilder]: Removed 17 assume(true) statements. [2019-09-10 01:47:05,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:05 BoogieIcfgContainer [2019-09-10 01:47:05,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:47:05,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:47:05,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:47:05,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:47:05,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:47:03" (1/3) ... [2019-09-10 01:47:05,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3b53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:05, skipping insertion in model container [2019-09-10 01:47:05,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:04" (2/3) ... [2019-09-10 01:47:05,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3b53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:05, skipping insertion in model container [2019-09-10 01:47:05,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:05" (3/3) ... [2019-09-10 01:47:05,166 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-1.i [2019-09-10 01:47:05,177 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:47:05,189 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-09-10 01:47:05,206 INFO L252 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-09-10 01:47:05,235 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:47:05,236 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:47:05,236 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:47:05,236 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:47:05,236 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:47:05,236 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:47:05,237 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:47:05,237 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:47:05,254 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2019-09-10 01:47:05,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 01:47:05,265 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:05,266 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:05,268 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:05,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:05,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1142059254, now seen corresponding path program 1 times [2019-09-10 01:47:05,277 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:05,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:05,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:05,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:05,330 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:05,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:05,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:47:05,427 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:05,432 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:05,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:05,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:05,451 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2019-09-10 01:47:05,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:05,472 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2019-09-10 01:47:05,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:05,474 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-10 01:47:05,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:05,484 INFO L225 Difference]: With dead ends: 48 [2019-09-10 01:47:05,484 INFO L226 Difference]: Without dead ends: 41 [2019-09-10 01:47:05,486 INFO L628 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 [2019-09-10 01:47:05,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-09-10 01:47:05,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-09-10 01:47:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-09-10 01:47:05,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2019-09-10 01:47:05,528 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 10 [2019-09-10 01:47:05,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:05,529 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2019-09-10 01:47:05,529 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:05,529 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2019-09-10 01:47:05,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-10 01:47:05,530 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:05,530 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:05,530 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:05,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:05,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1106993022, now seen corresponding path program 1 times [2019-09-10 01:47:05,531 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:05,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:05,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:05,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:05,534 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:05,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:05,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:47:05,626 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:05,628 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:47:05,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:47:05,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:47:05,629 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 4 states. [2019-09-10 01:47:05,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:05,747 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-09-10 01:47:05,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:47:05,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-09-10 01:47:05,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:05,749 INFO L225 Difference]: With dead ends: 39 [2019-09-10 01:47:05,749 INFO L226 Difference]: Without dead ends: 39 [2019-09-10 01:47:05,750 INFO L628 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 [2019-09-10 01:47:05,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-09-10 01:47:05,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2019-09-10 01:47:05,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-09-10 01:47:05,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2019-09-10 01:47:05,755 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 11 [2019-09-10 01:47:05,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:05,756 INFO L475 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2019-09-10 01:47:05,756 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:47:05,756 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2019-09-10 01:47:05,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-10 01:47:05,757 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:05,757 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:05,758 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:05,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:05,758 INFO L82 PathProgramCache]: Analyzing trace with hash 43014417, now seen corresponding path program 1 times [2019-09-10 01:47:05,758 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:05,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:05,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:05,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:05,761 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:05,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:05,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:05,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:47:05,887 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:05,888 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:47:05,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:47:05,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:47:05,888 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 4 states. [2019-09-10 01:47:05,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:05,950 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2019-09-10 01:47:05,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:47:05,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-09-10 01:47:05,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:05,952 INFO L225 Difference]: With dead ends: 35 [2019-09-10 01:47:05,952 INFO L226 Difference]: Without dead ends: 35 [2019-09-10 01:47:05,952 INFO L628 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 [2019-09-10 01:47:05,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-09-10 01:47:05,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-09-10 01:47:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-09-10 01:47:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-09-10 01:47:05,957 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 12 [2019-09-10 01:47:05,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:05,957 INFO L475 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-09-10 01:47:05,957 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:47:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-09-10 01:47:05,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-10 01:47:05,958 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:05,958 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:05,959 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:05,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:05,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1331731053, now seen corresponding path program 1 times [2019-09-10 01:47:05,959 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:05,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:05,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:05,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:05,961 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:06,077 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:06,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:47:06,077 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:06,077 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:47:06,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:47:06,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:47:06,078 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 5 states. [2019-09-10 01:47:06,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:06,263 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2019-09-10 01:47:06,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 01:47:06,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-09-10 01:47:06,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:06,266 INFO L225 Difference]: With dead ends: 54 [2019-09-10 01:47:06,266 INFO L226 Difference]: Without dead ends: 54 [2019-09-10 01:47:06,267 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:47:06,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-09-10 01:47:06,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 40. [2019-09-10 01:47:06,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-10 01:47:06,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2019-09-10 01:47:06,278 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 13 [2019-09-10 01:47:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:06,278 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2019-09-10 01:47:06,278 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:47:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2019-09-10 01:47:06,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-10 01:47:06,279 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:06,279 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:06,280 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:06,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:06,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1612684260, now seen corresponding path program 1 times [2019-09-10 01:47:06,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:06,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:06,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:06,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:06,284 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:06,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:06,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:06,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:47:06,390 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:06,390 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:47:06,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:47:06,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:47:06,391 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 4 states. [2019-09-10 01:47:06,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:06,530 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2019-09-10 01:47:06,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:47:06,531 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-09-10 01:47:06,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:06,531 INFO L225 Difference]: With dead ends: 38 [2019-09-10 01:47:06,532 INFO L226 Difference]: Without dead ends: 38 [2019-09-10 01:47:06,534 INFO L628 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 [2019-09-10 01:47:06,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-09-10 01:47:06,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-09-10 01:47:06,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-09-10 01:47:06,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-09-10 01:47:06,542 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 14 [2019-09-10 01:47:06,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:06,542 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-09-10 01:47:06,542 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:47:06,542 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-09-10 01:47:06,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-10 01:47:06,545 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:06,545 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:06,545 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:06,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:06,546 INFO L82 PathProgramCache]: Analyzing trace with hash 994068577, now seen corresponding path program 1 times [2019-09-10 01:47:06,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:06,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:06,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:06,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:06,550 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:06,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:06,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:06,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:47:06,692 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:06,692 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:47:06,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:47:06,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:47:06,693 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 5 states. [2019-09-10 01:47:06,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:06,803 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2019-09-10 01:47:06,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:47:06,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-09-10 01:47:06,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:06,804 INFO L225 Difference]: With dead ends: 40 [2019-09-10 01:47:06,804 INFO L226 Difference]: Without dead ends: 40 [2019-09-10 01:47:06,805 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 01:47:06,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-09-10 01:47:06,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2019-09-10 01:47:06,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-09-10 01:47:06,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2019-09-10 01:47:06,812 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 16 [2019-09-10 01:47:06,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:06,812 INFO L475 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2019-09-10 01:47:06,812 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:47:06,813 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2019-09-10 01:47:06,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-10 01:47:06,813 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:06,814 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:06,814 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:06,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:06,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1616602368, now seen corresponding path program 1 times [2019-09-10 01:47:06,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:06,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:06,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:06,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:06,817 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:06,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:06,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:06,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:47:06,897 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:06,898 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:47:06,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:47:06,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:47:06,899 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 5 states. [2019-09-10 01:47:07,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:07,053 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2019-09-10 01:47:07,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 01:47:07,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-09-10 01:47:07,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:07,055 INFO L225 Difference]: With dead ends: 43 [2019-09-10 01:47:07,055 INFO L226 Difference]: Without dead ends: 35 [2019-09-10 01:47:07,055 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:47:07,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-09-10 01:47:07,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-09-10 01:47:07,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-09-10 01:47:07,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-09-10 01:47:07,063 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 19 [2019-09-10 01:47:07,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:07,064 INFO L475 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-09-10 01:47:07,064 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:47:07,064 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-09-10 01:47:07,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-10 01:47:07,068 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:07,069 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:07,069 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:07,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:07,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1003967312, now seen corresponding path program 1 times [2019-09-10 01:47:07,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:07,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:07,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:07,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:07,073 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:07,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:07,273 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:47:07,273 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:47:07,274 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2019-09-10 01:47:07,276 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [7], [10], [12], [17], [21], [28], [39], [46], [75], [85], [96], [99], [100], [195], [211], [218], [219], [220] [2019-09-10 01:47:07,312 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:47:07,312 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:47:07,379 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:47:07,381 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 42 variables. [2019-09-10 01:47:07,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:07,385 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:47:07,416 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-10 01:47:07,417 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:47:07,418 INFO L420 sIntCurrentIteration]: We unified 20 AI predicates to 20 [2019-09-10 01:47:07,418 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:47:07,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:47:07,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 01:47:07,419 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:07,419 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:07,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:07,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:07,420 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 2 states. [2019-09-10 01:47:07,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:07,421 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-10 01:47:07,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:07,421 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2019-09-10 01:47:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:07,421 INFO L225 Difference]: With dead ends: 6 [2019-09-10 01:47:07,421 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:47:07,422 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:07,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:47:07,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:47:07,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:47:07,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:47:07,423 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-09-10 01:47:07,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:07,423 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:47:07,423 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:07,423 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:47:07,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:47:07,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:47:07 BoogieIcfgContainer [2019-09-10 01:47:07,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:47:07,431 INFO L168 Benchmark]: Toolchain (without parser) took 3728.13 ms. Allocated memory was 132.6 MB in the beginning and 223.3 MB in the end (delta: 90.7 MB). Free memory was 87.4 MB in the beginning and 69.9 MB in the end (delta: 17.5 MB). Peak memory consumption was 108.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:07,432 INFO L168 Benchmark]: CDTParser took 1.14 ms. Allocated memory is still 132.6 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:47:07,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.39 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 87.2 MB in the beginning and 162.8 MB in the end (delta: -75.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:07,434 INFO L168 Benchmark]: Boogie Preprocessor took 73.92 ms. Allocated memory is still 199.2 MB. Free memory was 162.8 MB in the beginning and 159.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:07,434 INFO L168 Benchmark]: RCFGBuilder took 729.01 ms. Allocated memory is still 199.2 MB. Free memory was 159.7 MB in the beginning and 110.6 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:07,436 INFO L168 Benchmark]: TraceAbstraction took 2271.63 ms. Allocated memory was 199.2 MB in the beginning and 223.3 MB in the end (delta: 24.1 MB). Free memory was 110.0 MB in the beginning and 69.9 MB in the end (delta: 40.1 MB). Peak memory consumption was 64.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:07,440 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14 ms. Allocated memory is still 132.6 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 649.39 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 87.2 MB in the beginning and 162.8 MB in the end (delta: -75.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.92 ms. Allocated memory is still 199.2 MB. Free memory was 162.8 MB in the beginning and 159.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 729.01 ms. Allocated memory is still 199.2 MB. Free memory was 159.7 MB in the beginning and 110.6 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2271.63 ms. Allocated memory was 199.2 MB in the beginning and 223.3 MB in the end (delta: 24.1 MB). Free memory was 110.0 MB in the beginning and 69.9 MB in the end (delta: 40.1 MB). Peak memory consumption was 64.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1039]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1025]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1040]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1024]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1032]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1033]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1023]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 52 locations, 7 error locations. SAFE Result, 2.2s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 226 SDtfs, 118 SDslu, 270 SDs, 0 SdLazy, 214 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.925 AbsIntWeakeningRatio, 1.3 AbsIntAvgWeakeningVarsNumRemoved, 0.3 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 17 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 8732 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...