/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 -i ../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 19:24:40,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 19:24:40,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 19:24:40,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 19:24:40,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 19:24:40,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 19:24:40,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 19:24:40,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 19:24:40,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 19:24:40,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 19:24:40,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 19:24:40,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 19:24:40,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 19:24:40,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 19:24:40,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 19:24:40,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 19:24:40,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 19:24:40,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 19:24:40,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 19:24:40,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 19:24:40,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 19:24:40,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 19:24:40,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 19:24:40,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 19:24:40,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 19:24:40,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 19:24:40,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 19:24:40,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 19:24:40,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 19:24:40,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 19:24:40,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 19:24:40,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 19:24:40,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 19:24:40,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 19:24:40,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 19:24:40,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 19:24:40,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 19:24:40,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 19:24:40,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 19:24:40,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 19:24:40,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 19:24:40,776 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 19:24:40,789 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 19:24:40,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 19:24:40,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 19:24:40,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 19:24:40,791 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 19:24:40,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 19:24:40,792 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 19:24:40,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 19:24:40,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 19:24:40,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 19:24:40,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 19:24:40,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 19:24:40,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 19:24:40,793 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 19:24:40,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 19:24:40,793 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 19:24:40,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 19:24:40,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 19:24:40,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 19:24:40,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 19:24:40,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 19:24:40,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 19:24:40,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 19:24:40,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 19:24:40,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 19:24:40,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 19:24:40,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 19:24:40,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 19:24:40,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 19:24:41,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 19:24:41,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 19:24:41,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 19:24:41,077 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 19:24:41,077 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 19:24:41,078 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2019-11-06 19:24:41,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19cfe6dd0/adae1f4c7c6948a09b289e83241cbd34/FLAGdda5380ae [2019-11-06 19:24:41,724 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 19:24:41,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2019-11-06 19:24:41,753 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19cfe6dd0/adae1f4c7c6948a09b289e83241cbd34/FLAGdda5380ae [2019-11-06 19:24:42,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19cfe6dd0/adae1f4c7c6948a09b289e83241cbd34 [2019-11-06 19:24:42,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 19:24:42,014 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 19:24:42,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 19:24:42,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 19:24:42,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 19:24:42,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:24:42" (1/1) ... [2019-11-06 19:24:42,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e90b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:24:42, skipping insertion in model container [2019-11-06 19:24:42,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:24:42" (1/1) ... [2019-11-06 19:24:42,030 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 19:24:42,085 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 19:24:42,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 19:24:42,696 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 19:24:42,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 19:24:42,893 INFO L192 MainTranslator]: Completed translation [2019-11-06 19:24:42,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:24:42 WrapperNode [2019-11-06 19:24:42,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 19:24:42,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 19:24:42,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 19:24:42,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 19:24:42,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:24:42" (1/1) ... [2019-11-06 19:24:42,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:24:42" (1/1) ... [2019-11-06 19:24:42,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:24:42" (1/1) ... [2019-11-06 19:24:42,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:24:42" (1/1) ... [2019-11-06 19:24:43,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:24:42" (1/1) ... [2019-11-06 19:24:43,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:24:42" (1/1) ... [2019-11-06 19:24:43,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:24:42" (1/1) ... [2019-11-06 19:24:43,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 19:24:43,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 19:24:43,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 19:24:43,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 19:24:43,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:24:42" (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 19:24:43,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 19:24:43,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 19:24:43,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-06 19:24:43,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-06 19:24:43,102 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2019-11-06 19:24:43,102 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2019-11-06 19:24:43,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-11-06 19:24:43,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2019-11-06 19:24:43,102 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-11-06 19:24:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2019-11-06 19:24:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2019-11-06 19:24:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2019-11-06 19:24:43,104 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2019-11-06 19:24:43,104 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2019-11-06 19:24:43,104 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2019-11-06 19:24:43,104 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2019-11-06 19:24:43,105 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 19:24:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 19:24:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-06 19:24:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-06 19:24:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-06 19:24:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-06 19:24:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-06 19:24:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-06 19:24:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-06 19:24:43,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-06 19:24:43,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-06 19:24:43,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-06 19:24:43,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-06 19:24:43,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-06 19:24:43,108 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-06 19:24:43,108 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-06 19:24:43,108 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-06 19:24:43,108 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-06 19:24:43,108 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-06 19:24:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-06 19:24:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-06 19:24:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-06 19:24:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-06 19:24:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-06 19:24:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-06 19:24:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-06 19:24:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-06 19:24:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-06 19:24:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-06 19:24:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-06 19:24:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-06 19:24:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-06 19:24:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-06 19:24:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-06 19:24:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-06 19:24:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-06 19:24:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-06 19:24:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-06 19:24:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-06 19:24:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-06 19:24:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-06 19:24:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-06 19:24:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-06 19:24:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-06 19:24:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-06 19:24:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-06 19:24:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-06 19:24:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-06 19:24:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-06 19:24:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-06 19:24:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-06 19:24:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-06 19:24:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-06 19:24:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-06 19:24:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 19:24:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 19:24:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-06 19:24:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 19:24:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-06 19:24:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-06 19:24:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-06 19:24:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-06 19:24:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-06 19:24:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-06 19:24:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-06 19:24:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 19:24:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-06 19:24:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-06 19:24:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-06 19:24:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-06 19:24:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-06 19:24:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-06 19:24:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-06 19:24:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-06 19:24:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-06 19:24:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-06 19:24:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-06 19:24:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-06 19:24:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-06 19:24:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-06 19:24:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-06 19:24:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-06 19:24:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-06 19:24:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-06 19:24:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-06 19:24:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-06 19:24:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-06 19:24:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-06 19:24:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-06 19:24:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-06 19:24:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-06 19:24:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-06 19:24:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-06 19:24:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-06 19:24:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-06 19:24:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-06 19:24:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-06 19:24:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-06 19:24:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-06 19:24:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-06 19:24:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-06 19:24:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-06 19:24:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-06 19:24:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-06 19:24:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-11-06 19:24:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-11-06 19:24:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-11-06 19:24:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-11-06 19:24:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-11-06 19:24:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-11-06 19:24:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-11-06 19:24:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-11-06 19:24:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-11-06 19:24:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-11-06 19:24:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-11-06 19:24:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-11-06 19:24:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-11-06 19:24:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-11-06 19:24:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-11-06 19:24:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-11-06 19:24:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-11-06 19:24:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-11-06 19:24:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-11-06 19:24:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-11-06 19:24:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-11-06 19:24:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-11-06 19:24:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-11-06 19:24:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-11-06 19:24:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-11-06 19:24:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-11-06 19:24:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-11-06 19:24:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-11-06 19:24:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-11-06 19:24:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-11-06 19:24:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-11-06 19:24:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-11-06 19:24:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-11-06 19:24:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-11-06 19:24:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-11-06 19:24:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-11-06 19:24:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-11-06 19:24:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-11-06 19:24:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 19:24:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-11-06 19:24:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-11-06 19:24:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-11-06 19:24:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-11-06 19:24:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-11-06 19:24:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-11-06 19:24:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-11-06 19:24:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-11-06 19:24:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-11-06 19:24:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-11-06 19:24:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-11-06 19:24:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-11-06 19:24:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-11-06 19:24:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-11-06 19:24:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-11-06 19:24:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-11-06 19:24:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-11-06 19:24:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-11-06 19:24:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-11-06 19:24:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-11-06 19:24:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-11-06 19:24:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-11-06 19:24:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-11-06 19:24:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-11-06 19:24:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-11-06 19:24:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-11-06 19:24:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-11-06 19:24:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-11-06 19:24:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-11-06 19:24:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2019-11-06 19:24:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-11-06 19:24:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-11-06 19:24:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-11-06 19:24:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-11-06 19:24:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-06 19:24:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-11-06 19:24:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-11-06 19:24:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-11-06 19:24:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-11-06 19:24:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-11-06 19:24:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-11-06 19:24:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-11-06 19:24:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-11-06 19:24:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-11-06 19:24:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-11-06 19:24:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-11-06 19:24:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-11-06 19:24:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-11-06 19:24:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-11-06 19:24:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-11-06 19:24:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-11-06 19:24:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-11-06 19:24:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-11-06 19:24:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-11-06 19:24:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-11-06 19:24:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-11-06 19:24:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-11-06 19:24:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-11-06 19:24:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-11-06 19:24:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-11-06 19:24:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-11-06 19:24:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-11-06 19:24:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 19:24:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2019-11-06 19:24:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2019-11-06 19:24:43,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 19:24:43,142 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-11-06 19:24:43,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 19:24:43,142 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2019-11-06 19:24:43,142 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-11-06 19:24:43,142 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2019-11-06 19:24:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2019-11-06 19:24:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 19:24:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 19:24:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2019-11-06 19:24:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2019-11-06 19:24:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 19:24:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2019-11-06 19:24:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 19:24:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2019-11-06 19:24:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2019-11-06 19:24:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 19:24:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 19:24:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 19:24:43,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-06 19:24:43,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 19:24:43,986 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 19:24:43,986 INFO L284 CfgBuilder]: Removed 41 assume(true) statements. [2019-11-06 19:24:43,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:24:43 BoogieIcfgContainer [2019-11-06 19:24:43,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 19:24:43,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 19:24:43,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 19:24:43,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 19:24:43,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:24:42" (1/3) ... [2019-11-06 19:24:43,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f49072a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:24:43, skipping insertion in model container [2019-11-06 19:24:43,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:24:42" (2/3) ... [2019-11-06 19:24:43,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f49072a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:24:43, skipping insertion in model container [2019-11-06 19:24:43,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:24:43" (3/3) ... [2019-11-06 19:24:43,995 INFO L109 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2019-11-06 19:24:44,004 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 19:24:44,011 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 19:24:44,019 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 19:24:44,050 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 19:24:44,050 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 19:24:44,051 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 19:24:44,051 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 19:24:44,051 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 19:24:44,051 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 19:24:44,051 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 19:24:44,051 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 19:24:44,077 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2019-11-06 19:24:44,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-06 19:24:44,084 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:24:44,095 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:24:44,098 INFO L410 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:24:44,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:24:44,103 INFO L82 PathProgramCache]: Analyzing trace with hash -663354135, now seen corresponding path program 1 times [2019-11-06 19:24:44,109 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:24:44,110 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451778419] [2019-11-06 19:24:44,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:24:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:44,343 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 19:24:44,343 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451778419] [2019-11-06 19:24:44,344 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 19:24:44,344 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 19:24:44,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950356728] [2019-11-06 19:24:44,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 19:24:44,350 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:24:44,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 19:24:44,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-06 19:24:44,368 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 4 states. [2019-11-06 19:24:44,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:24:44,889 INFO L93 Difference]: Finished difference Result 302 states and 489 transitions. [2019-11-06 19:24:44,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 19:24:44,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-06 19:24:44,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:24:44,904 INFO L225 Difference]: With dead ends: 302 [2019-11-06 19:24:44,905 INFO L226 Difference]: Without dead ends: 148 [2019-11-06 19:24:44,911 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 19:24:44,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-11-06 19:24:45,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 130. [2019-11-06 19:24:45,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-11-06 19:24:45,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2019-11-06 19:24:45,035 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 14 [2019-11-06 19:24:45,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:24:45,035 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2019-11-06 19:24:45,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 19:24:45,036 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2019-11-06 19:24:45,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-06 19:24:45,042 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:24:45,043 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:24:45,043 INFO L410 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:24:45,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:24:45,043 INFO L82 PathProgramCache]: Analyzing trace with hash 151916718, now seen corresponding path program 1 times [2019-11-06 19:24:45,044 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:24:45,044 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286823262] [2019-11-06 19:24:45,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:24:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:45,427 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 19:24:45,427 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286823262] [2019-11-06 19:24:45,428 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 19:24:45,428 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 19:24:45,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895821006] [2019-11-06 19:24:45,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 19:24:45,430 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:24:45,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 19:24:45,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-06 19:24:45,431 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 8 states. [2019-11-06 19:24:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:24:46,204 INFO L93 Difference]: Finished difference Result 150 states and 179 transitions. [2019-11-06 19:24:46,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 19:24:46,205 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-06 19:24:46,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:24:46,207 INFO L225 Difference]: With dead ends: 150 [2019-11-06 19:24:46,207 INFO L226 Difference]: Without dead ends: 147 [2019-11-06 19:24:46,209 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2019-11-06 19:24:46,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-11-06 19:24:46,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 129. [2019-11-06 19:24:46,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-11-06 19:24:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2019-11-06 19:24:46,227 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 34 [2019-11-06 19:24:46,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:24:46,228 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2019-11-06 19:24:46,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 19:24:46,228 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2019-11-06 19:24:46,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-06 19:24:46,229 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:24:46,229 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:24:46,229 INFO L410 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:24:46,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:24:46,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1411633869, now seen corresponding path program 1 times [2019-11-06 19:24:46,230 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:24:46,230 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217100121] [2019-11-06 19:24:46,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:24:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:46,699 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 19:24:46,699 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217100121] [2019-11-06 19:24:46,699 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 19:24:46,699 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-11-06 19:24:46,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15896015] [2019-11-06 19:24:46,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-06 19:24:46,700 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:24:46,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-06 19:24:46,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2019-11-06 19:24:46,701 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 16 states. [2019-11-06 19:24:49,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:24:49,206 INFO L93 Difference]: Finished difference Result 244 states and 291 transitions. [2019-11-06 19:24:49,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-06 19:24:49,212 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 37 [2019-11-06 19:24:49,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:24:49,215 INFO L225 Difference]: With dead ends: 244 [2019-11-06 19:24:49,215 INFO L226 Difference]: Without dead ends: 238 [2019-11-06 19:24:49,216 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=196, Invalid=860, Unknown=0, NotChecked=0, Total=1056 [2019-11-06 19:24:49,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2019-11-06 19:24:49,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 209. [2019-11-06 19:24:49,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-11-06 19:24:49,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 251 transitions. [2019-11-06 19:24:49,247 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 251 transitions. Word has length 37 [2019-11-06 19:24:49,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:24:49,247 INFO L462 AbstractCegarLoop]: Abstraction has 209 states and 251 transitions. [2019-11-06 19:24:49,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-06 19:24:49,247 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 251 transitions. [2019-11-06 19:24:49,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-06 19:24:49,248 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:24:49,249 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:24:49,249 INFO L410 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:24:49,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:24:49,249 INFO L82 PathProgramCache]: Analyzing trace with hash 2082496891, now seen corresponding path program 1 times [2019-11-06 19:24:49,249 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:24:49,250 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818874829] [2019-11-06 19:24:49,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:24:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:50,090 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 19:24:50,090 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818874829] [2019-11-06 19:24:50,090 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 19:24:50,091 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-11-06 19:24:50,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366708654] [2019-11-06 19:24:50,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-06 19:24:50,091 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:24:50,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-06 19:24:50,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2019-11-06 19:24:50,092 INFO L87 Difference]: Start difference. First operand 209 states and 251 transitions. Second operand 18 states. [2019-11-06 19:24:50,565 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-11-06 19:24:53,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:24:53,747 INFO L93 Difference]: Finished difference Result 329 states and 399 transitions. [2019-11-06 19:24:53,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-06 19:24:53,750 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 40 [2019-11-06 19:24:53,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:24:53,754 INFO L225 Difference]: With dead ends: 329 [2019-11-06 19:24:53,754 INFO L226 Difference]: Without dead ends: 326 [2019-11-06 19:24:53,755 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=201, Invalid=1131, Unknown=0, NotChecked=0, Total=1332 [2019-11-06 19:24:53,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-11-06 19:24:53,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 290. [2019-11-06 19:24:53,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-11-06 19:24:53,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2019-11-06 19:24:53,792 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 40 [2019-11-06 19:24:53,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:24:53,793 INFO L462 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2019-11-06 19:24:53,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-06 19:24:53,793 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2019-11-06 19:24:53,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-06 19:24:53,795 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:24:53,795 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:24:53,795 INFO L410 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:24:53,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:24:53,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1376068061, now seen corresponding path program 1 times [2019-11-06 19:24:53,796 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:24:53,796 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236618671] [2019-11-06 19:24:53,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:24:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:55,616 WARN L191 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 58 [2019-11-06 19:24:55,847 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 19:24:55,848 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236618671] [2019-11-06 19:24:55,848 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 19:24:55,848 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-11-06 19:24:55,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373202944] [2019-11-06 19:24:55,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-06 19:24:55,849 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:24:55,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-06 19:24:55,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2019-11-06 19:24:55,850 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand 20 states. [2019-11-06 19:24:56,507 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-11-06 19:24:57,277 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-11-06 19:24:59,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:24:59,538 INFO L93 Difference]: Finished difference Result 324 states and 391 transitions. [2019-11-06 19:24:59,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-06 19:24:59,539 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 43 [2019-11-06 19:24:59,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:24:59,541 INFO L225 Difference]: With dead ends: 324 [2019-11-06 19:24:59,542 INFO L226 Difference]: Without dead ends: 321 [2019-11-06 19:24:59,543 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2019-11-06 19:24:59,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-11-06 19:24:59,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 290. [2019-11-06 19:24:59,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-11-06 19:24:59,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 352 transitions. [2019-11-06 19:24:59,570 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 352 transitions. Word has length 43 [2019-11-06 19:24:59,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:24:59,571 INFO L462 AbstractCegarLoop]: Abstraction has 290 states and 352 transitions. [2019-11-06 19:24:59,571 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-06 19:24:59,571 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 352 transitions. [2019-11-06 19:24:59,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-06 19:24:59,573 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:24:59,573 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:24:59,573 INFO L410 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:24:59,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:24:59,573 INFO L82 PathProgramCache]: Analyzing trace with hash 796266502, now seen corresponding path program 1 times [2019-11-06 19:24:59,574 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:24:59,574 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643980247] [2019-11-06 19:24:59,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:24:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:24:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:00,414 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 19:25:00,414 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643980247] [2019-11-06 19:25:00,415 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 19:25:00,416 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-11-06 19:25:00,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165761296] [2019-11-06 19:25:00,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-06 19:25:00,417 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:25:00,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-06 19:25:00,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2019-11-06 19:25:00,418 INFO L87 Difference]: Start difference. First operand 290 states and 352 transitions. Second operand 19 states. [2019-11-06 19:25:04,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:25:04,385 INFO L93 Difference]: Finished difference Result 323 states and 389 transitions. [2019-11-06 19:25:04,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-06 19:25:04,386 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 46 [2019-11-06 19:25:04,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:25:04,391 INFO L225 Difference]: With dead ends: 323 [2019-11-06 19:25:04,391 INFO L226 Difference]: Without dead ends: 320 [2019-11-06 19:25:04,392 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=189, Invalid=1143, Unknown=0, NotChecked=0, Total=1332 [2019-11-06 19:25:04,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-11-06 19:25:04,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2019-11-06 19:25:04,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-11-06 19:25:04,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 351 transitions. [2019-11-06 19:25:04,426 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 351 transitions. Word has length 46 [2019-11-06 19:25:04,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:25:04,426 INFO L462 AbstractCegarLoop]: Abstraction has 290 states and 351 transitions. [2019-11-06 19:25:04,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-06 19:25:04,426 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 351 transitions. [2019-11-06 19:25:04,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-06 19:25:04,427 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:25:04,428 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:25:04,428 INFO L410 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:25:04,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:25:04,428 INFO L82 PathProgramCache]: Analyzing trace with hash 262392368, now seen corresponding path program 1 times [2019-11-06 19:25:04,429 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:25:04,429 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995086668] [2019-11-06 19:25:04,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:25:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:05,245 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-11-06 19:25:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:06,164 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 64 [2019-11-06 19:25:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:12,671 WARN L191 SmtUtils]: Spent 4.61 s on a formula simplification. DAG size of input: 715 DAG size of output: 124 [2019-11-06 19:25:13,630 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 19:25:13,631 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995086668] [2019-11-06 19:25:13,631 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 19:25:13,631 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-11-06 19:25:13,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155432517] [2019-11-06 19:25:13,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-06 19:25:13,632 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:25:13,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-06 19:25:13,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2019-11-06 19:25:13,632 INFO L87 Difference]: Start difference. First operand 290 states and 351 transitions. Second operand 22 states. [2019-11-06 19:25:14,916 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-11-06 19:25:15,204 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-11-06 19:25:15,544 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-11-06 19:25:19,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:25:19,065 INFO L93 Difference]: Finished difference Result 322 states and 387 transitions. [2019-11-06 19:25:19,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-06 19:25:19,065 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 49 [2019-11-06 19:25:19,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:25:19,068 INFO L225 Difference]: With dead ends: 322 [2019-11-06 19:25:19,069 INFO L226 Difference]: Without dead ends: 319 [2019-11-06 19:25:19,070 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=359, Invalid=1363, Unknown=0, NotChecked=0, Total=1722 [2019-11-06 19:25:19,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-11-06 19:25:19,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 290. [2019-11-06 19:25:19,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-11-06 19:25:19,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 350 transitions. [2019-11-06 19:25:19,096 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 350 transitions. Word has length 49 [2019-11-06 19:25:19,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:25:19,097 INFO L462 AbstractCegarLoop]: Abstraction has 290 states and 350 transitions. [2019-11-06 19:25:19,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-06 19:25:19,097 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 350 transitions. [2019-11-06 19:25:19,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-06 19:25:19,098 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:25:19,098 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:25:19,099 INFO L410 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:25:19,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:25:19,099 INFO L82 PathProgramCache]: Analyzing trace with hash -103719498, now seen corresponding path program 1 times [2019-11-06 19:25:19,099 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:25:19,099 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133919775] [2019-11-06 19:25:19,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:25:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:25:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat