/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/list-simple/sll2n_insert_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:18:39,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:18:39,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:18:39,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:18:39,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:18:39,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:18:39,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:18:39,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:18:39,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:18:39,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:18:39,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:18:39,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:18:39,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:18:39,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:18:39,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:18:39,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:18:39,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:18:39,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:18:39,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:18:39,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:18:39,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:18:39,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:18:39,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:18:39,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:18:39,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:18:39,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:18:39,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:18:39,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:18:39,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:18:39,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:18:39,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:18:39,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:18:39,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:18:39,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:18:39,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:18:39,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:18:39,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:18:39,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:18:39,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:18:39,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:18:39,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:18:39,734 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 21:18:39,768 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:18:39,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:18:39,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:18:39,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:18:39,773 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:18:39,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:18:39,773 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:18:39,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:18:39,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:18:39,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:18:39,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:18:39,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:18:39,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:18:39,775 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:18:39,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:18:39,775 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:18:39,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:18:39,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:18:39,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:18:39,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:18:39,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:18:39,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:18:39,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:18:39,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:18:39,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:18:39,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:18:39,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:18:39,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:18:39,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:18:40,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:18:40,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:18:40,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:18:40,077 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:18:40,077 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:18:40,078 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_insert_equal.i [2019-11-06 21:18:40,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4229d9507/61b7826f68d1490a9c5be781f97e8ba8/FLAGb91141834 [2019-11-06 21:18:40,688 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:18:40,689 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_insert_equal.i [2019-11-06 21:18:40,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4229d9507/61b7826f68d1490a9c5be781f97e8ba8/FLAGb91141834 [2019-11-06 21:18:40,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4229d9507/61b7826f68d1490a9c5be781f97e8ba8 [2019-11-06 21:18:40,976 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:18:40,978 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:18:40,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:18:40,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:18:40,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:18:40,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:18:40" (1/1) ... [2019-11-06 21:18:40,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a385adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:40, skipping insertion in model container [2019-11-06 21:18:40,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:18:40" (1/1) ... [2019-11-06 21:18:40,994 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:18:41,050 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:18:41,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:18:41,478 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:18:41,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:18:41,599 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:18:41,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:41 WrapperNode [2019-11-06 21:18:41,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:18:41,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:18:41,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:18:41,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:18:41,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:41" (1/1) ... [2019-11-06 21:18:41,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:41" (1/1) ... [2019-11-06 21:18:41,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:41" (1/1) ... [2019-11-06 21:18:41,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:41" (1/1) ... [2019-11-06 21:18:41,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:41" (1/1) ... [2019-11-06 21:18:41,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:41" (1/1) ... [2019-11-06 21:18:41,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:41" (1/1) ... [2019-11-06 21:18:41,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:18:41,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:18:41,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:18:41,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:18:41,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:41" (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 21:18:41,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:18:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:18:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-06 21:18:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-06 21:18:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-06 21:18:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-11-06 21:18:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-11-06 21:18:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-11-06 21:18:41,733 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2019-11-06 21:18:41,733 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:18:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:18:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-06 21:18:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-06 21:18:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-06 21:18:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-06 21:18:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-06 21:18:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-06 21:18:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-06 21:18:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-06 21:18:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-06 21:18:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-06 21:18:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-06 21:18:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-06 21:18:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-06 21:18:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-06 21:18:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-06 21:18:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-06 21:18:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-06 21:18:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-06 21:18:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-06 21:18:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-06 21:18:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-06 21:18:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-06 21:18:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-06 21:18:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-06 21:18:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-06 21:18:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-06 21:18:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-06 21:18:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-06 21:18:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-06 21:18:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-06 21:18:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-06 21:18:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-06 21:18:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-06 21:18:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-06 21:18:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-06 21:18:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-06 21:18:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-06 21:18:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-06 21:18:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-06 21:18:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-06 21:18:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-06 21:18:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-06 21:18:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-06 21:18:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-06 21:18:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-06 21:18:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-06 21:18:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-06 21:18:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-06 21:18:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-06 21:18:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-06 21:18:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-06 21:18:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-06 21:18:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:18:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 21:18:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-06 21:18:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:18:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-06 21:18:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-06 21:18:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-06 21:18:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-06 21:18:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-06 21:18:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-06 21:18:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-06 21:18:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-06 21:18:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-06 21:18:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 21:18:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-06 21:18:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-06 21:18:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-06 21:18:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-06 21:18:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-06 21:18:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-06 21:18:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-06 21:18:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-06 21:18:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-06 21:18:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-06 21:18:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-06 21:18:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-06 21:18:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-06 21:18:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-06 21:18:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-06 21:18:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-06 21:18:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-06 21:18:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-06 21:18:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-06 21:18:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-06 21:18:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-06 21:18:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-06 21:18:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-06 21:18:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-06 21:18:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-06 21:18:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-06 21:18:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-06 21:18:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-06 21:18:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-06 21:18:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-06 21:18:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-06 21:18:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-06 21:18:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-06 21:18:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-06 21:18:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-06 21:18:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-06 21:18:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-06 21:18:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-06 21:18:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-06 21:18:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-06 21:18:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-11-06 21:18:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:18:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:18:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:18:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-11-06 21:18:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-11-06 21:18:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:18:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:18:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2019-11-06 21:18:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:18:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:18:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-06 21:18:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:18:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:18:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:18:42,125 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-06 21:18:42,323 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:18:42,324 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-06 21:18:42,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:18:42 BoogieIcfgContainer [2019-11-06 21:18:42,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:18:42,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:18:42,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:18:42,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:18:42,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:18:40" (1/3) ... [2019-11-06 21:18:42,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfb228c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:18:42, skipping insertion in model container [2019-11-06 21:18:42,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:41" (2/3) ... [2019-11-06 21:18:42,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfb228c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:18:42, skipping insertion in model container [2019-11-06 21:18:42,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:18:42" (3/3) ... [2019-11-06 21:18:42,333 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_insert_equal.i [2019-11-06 21:18:42,343 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:18:42,351 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:18:42,362 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:18:42,387 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:18:42,387 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:18:42,387 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:18:42,387 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:18:42,388 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:18:42,388 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:18:42,388 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:18:42,388 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:18:42,406 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-11-06 21:18:42,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-06 21:18:42,413 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:18:42,414 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] [2019-11-06 21:18:42,416 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:18:42,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:18:42,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1950085846, now seen corresponding path program 1 times [2019-11-06 21:18:42,432 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:18:42,432 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91773295] [2019-11-06 21:18:42,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:18:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:42,742 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 21:18:42,743 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91773295] [2019-11-06 21:18:42,746 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:18:42,746 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 21:18:42,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625960068] [2019-11-06 21:18:42,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:18:42,753 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:18:42,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:18:42,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-06 21:18:42,771 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 4 states. [2019-11-06 21:18:43,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:18:43,038 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2019-11-06 21:18:43,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 21:18:43,040 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-06 21:18:43,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:18:43,051 INFO L225 Difference]: With dead ends: 94 [2019-11-06 21:18:43,051 INFO L226 Difference]: Without dead ends: 41 [2019-11-06 21:18:43,055 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 21:18:43,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-06 21:18:43,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2019-11-06 21:18:43,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-06 21:18:43,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2019-11-06 21:18:43,101 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 31 [2019-11-06 21:18:43,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:18:43,101 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2019-11-06 21:18:43,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:18:43,101 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2019-11-06 21:18:43,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-06 21:18:43,103 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:18:43,104 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] [2019-11-06 21:18:43,104 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:18:43,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:18:43,104 INFO L82 PathProgramCache]: Analyzing trace with hash -778212150, now seen corresponding path program 1 times [2019-11-06 21:18:43,105 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:18:43,105 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110274593] [2019-11-06 21:18:43,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:18:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:43,327 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 21:18:43,327 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110274593] [2019-11-06 21:18:43,327 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:18:43,328 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 21:18:43,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44500899] [2019-11-06 21:18:43,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 21:18:43,330 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:18:43,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 21:18:43,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 21:18:43,331 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 5 states. [2019-11-06 21:18:43,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:18:43,473 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2019-11-06 21:18:43,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 21:18:43,474 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-06 21:18:43,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:18:43,476 INFO L225 Difference]: With dead ends: 55 [2019-11-06 21:18:43,476 INFO L226 Difference]: Without dead ends: 46 [2019-11-06 21:18:43,477 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 21:18:43,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-06 21:18:43,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2019-11-06 21:18:43,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-06 21:18:43,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2019-11-06 21:18:43,500 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 31 [2019-11-06 21:18:43,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:18:43,501 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2019-11-06 21:18:43,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 21:18:43,501 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2019-11-06 21:18:43,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-06 21:18:43,504 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:18:43,504 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] [2019-11-06 21:18:43,505 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:18:43,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:18:43,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1587558776, now seen corresponding path program 1 times [2019-11-06 21:18:43,506 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:18:43,506 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747445112] [2019-11-06 21:18:43,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:18:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:43,786 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 21:18:43,786 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747445112] [2019-11-06 21:18:43,786 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:18:43,787 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 21:18:43,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81888437] [2019-11-06 21:18:43,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 21:18:43,788 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:18:43,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 21:18:43,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:18:43,789 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 10 states. [2019-11-06 21:18:44,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:18:44,061 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2019-11-06 21:18:44,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 21:18:44,062 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2019-11-06 21:18:44,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:18:44,063 INFO L225 Difference]: With dead ends: 71 [2019-11-06 21:18:44,063 INFO L226 Difference]: Without dead ends: 41 [2019-11-06 21:18:44,064 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2019-11-06 21:18:44,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-06 21:18:44,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2019-11-06 21:18:44,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-06 21:18:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2019-11-06 21:18:44,083 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 31 [2019-11-06 21:18:44,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:18:44,084 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2019-11-06 21:18:44,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 21:18:44,084 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2019-11-06 21:18:44,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-06 21:18:44,086 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:18:44,086 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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 21:18:44,086 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:18:44,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:18:44,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1489805475, now seen corresponding path program 1 times [2019-11-06 21:18:44,087 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:18:44,088 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970549698] [2019-11-06 21:18:44,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:18:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:44,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-06 21:18:44,327 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970549698] [2019-11-06 21:18:44,327 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21868392] [2019-11-06 21:18:44,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:18:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:44,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-06 21:18:44,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:18:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 21:18:44,547 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 21:18:44,548 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 9 [2019-11-06 21:18:44,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461646510] [2019-11-06 21:18:44,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 21:18:44,549 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:18:44,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 21:18:44,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-06 21:18:44,550 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 9 states. [2019-11-06 21:18:44,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:18:44,755 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2019-11-06 21:18:44,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-06 21:18:44,756 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2019-11-06 21:18:44,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:18:44,757 INFO L225 Difference]: With dead ends: 70 [2019-11-06 21:18:44,757 INFO L226 Difference]: Without dead ends: 45 [2019-11-06 21:18:44,758 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-11-06 21:18:44,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-06 21:18:44,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2019-11-06 21:18:44,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-06 21:18:44,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2019-11-06 21:18:44,771 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 41 [2019-11-06 21:18:44,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:18:44,772 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2019-11-06 21:18:44,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 21:18:44,772 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2019-11-06 21:18:44,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-11-06 21:18:44,774 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:18:44,774 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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 21:18:44,976 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:18:44,976 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:18:44,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:18:44,977 INFO L82 PathProgramCache]: Analyzing trace with hash 341969372, now seen corresponding path program 2 times [2019-11-06 21:18:44,978 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:18:44,978 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257612285] [2019-11-06 21:18:44,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:18:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:46,196 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-11-06 21:18:46,497 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-11-06 21:18:46,738 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-11-06 21:18:47,014 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2019-11-06 21:18:47,316 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-11-06 21:18:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:18:47,844 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 38 [2019-11-06 21:18:47,880 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-06 21:18:47,880 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257612285] [2019-11-06 21:18:47,880 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724626935] [2019-11-06 21:18:47,881 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:18:48,041 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-06 21:18:48,042 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-06 21:18:48,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 109 conjunts are in the unsatisfiable core [2019-11-06 21:18:48,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:18:48,157 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-06 21:18:48,157 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:48,165 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:48,166 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:18:48,166 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2019-11-06 21:18:48,193 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-06 21:18:48,194 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:48,202 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:48,203 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:18:48,203 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2019-11-06 21:18:48,240 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2019-11-06 21:18:48,240 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:48,249 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:48,250 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:18:48,250 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2019-11-06 21:18:48,434 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2019-11-06 21:18:48,434 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:48,453 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:48,461 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-06 21:18:48,461 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:48,475 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:48,480 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2019-11-06 21:18:48,481 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:48,524 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:48,525 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:18:48,526 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:48, output treesize:13 [2019-11-06 21:18:48,677 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:48,696 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:48,697 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:48,697 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:81, output treesize:67 [2019-11-06 21:18:52,781 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 42 [2019-11-06 21:18:56,904 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 48 [2019-11-06 21:18:57,159 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:57,208 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:57,216 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:57,256 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:57,257 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:57,257 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:166, output treesize:321 [2019-11-06 21:18:59,538 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:59,613 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:59,614 INFO L496 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: 10 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:59,615 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 10 variables, input treesize:534, output treesize:578 [2019-11-06 21:19:18,413 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-11-06 21:19:18,500 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:19:18,501 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2019-11-06 21:19:18,501 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:19:18,671 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-11-06 21:19:18,671 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:19:18,675 INFO L392 ElimStorePlain]: Different costs {8=[|v_#memory_int_BEFORE_CALL_4|], 20=[|v_#memory_$Pointer$.base_BEFORE_CALL_4|, |v_#memory_$Pointer$.offset_BEFORE_CALL_4|]} [2019-11-06 21:19:18,693 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-06 21:19:18,698 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:19:18,702 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:19:18,759 INFO L341 Elim1Store]: treesize reduction 44, result has 41.3 percent of original size [2019-11-06 21:19:18,759 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 205 treesize of output 88 [2019-11-06 21:19:18,760 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-06 21:19:18,938 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-11-06 21:19:18,939 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:19:18,943 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:19:18,950 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:19:18,952 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:19:19,191 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2019-11-06 21:19:19,192 INFO L341 Elim1Store]: treesize reduction 86, result has 77.5 percent of original size [2019-11-06 21:19:19,192 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 329 treesize of output 470 [2019-11-06 21:19:19,194 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:19,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,200 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-06 21:19:19,680 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-11-06 21:19:19,681 INFO L567 ElimStorePlain]: treesize reduction 302, result has 67.4 percent of original size [2019-11-06 21:19:19,684 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:19:19,691 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:19:19,693 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:19:19,884 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-06 21:19:19,885 INFO L341 Elim1Store]: treesize reduction 56, result has 76.0 percent of original size [2019-11-06 21:19:19,885 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 446 treesize of output 392 [2019-11-06 21:19:19,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:19,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:19,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:19,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:19,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,899 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:19,900 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,905 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:19,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,909 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,910 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:19,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,914 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:19,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:19,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,919 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,920 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:19,921 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:19,933 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 6 xjuncts. [2019-11-06 21:19:20,648 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 83 [2019-11-06 21:19:20,648 INFO L567 ElimStorePlain]: treesize reduction 11534, result has 4.0 percent of original size [2019-11-06 21:19:20,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,652 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,652 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,654 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,659 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,660 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,661 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:20,663 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,663 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:20,667 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,669 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:20,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:19:20,673 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:19:20,676 INFO L496 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:19:20,676 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 14 variables, input treesize:624, output treesize:945 [2019-11-06 21:19:20,891 INFO L392 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 2=[|#memory_$Pointer$.base|]} [2019-11-06 21:19:20,894 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 43 [2019-11-06 21:19:20,895 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:19:20,917 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:19:20,921 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:19:20,922 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:19:20,923 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 28 [2019-11-06 21:19:20,923 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-06 21:19:20,931 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:19:20,932 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:19:20,932 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:90, output treesize:14 [2019-11-06 21:19:21,027 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-06 21:19:21,028 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:19:21,029 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2019-11-06 21:19:21,029 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:19:21,035 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:19:21,036 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:19:21,036 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:3 [2019-11-06 21:19:21,053 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 21:19:21,053 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 21:19:21,054 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 37 [2019-11-06 21:19:21,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235666993] [2019-11-06 21:19:21,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-11-06 21:19:21,055 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:19:21,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-11-06 21:19:21,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1209, Unknown=11, NotChecked=0, Total=1332 [2019-11-06 21:19:21,056 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 37 states.