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-properties/splice-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:32:10,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:32:10,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:32:10,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:32:10,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:32:10,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:32:10,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:32:10,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:32:10,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:32:10,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:32:10,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:32:10,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:32:10,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:32:10,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:32:10,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:32:10,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:32:10,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:32:10,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:32:10,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:32:10,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:32:10,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:32:10,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:32:10,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:32:10,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:32:10,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 01:32:10,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 01:32:10,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 01:32:10,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 01:32:10,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 01:32:10,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 01:32:10,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:32:10,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:32:10,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:32:10,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:32:10,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:32:10,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:32:10,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:32:10,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:32:10,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:32:10,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:32:10,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:32:10,849 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 [2019-09-08 01:32:10,865 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:32:10,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:32:10,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:32:10,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:32:10,869 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:32:10,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:32:10,869 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:32:10,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:32:10,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:32:10,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:32:10,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:32:10,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:32:10,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:32:10,871 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:32:10,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:32:10,871 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:32:10,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:32:10,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:32:10,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:32:10,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:32:10,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:32:10,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:32:10,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:32:10,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:32:10,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:32:10,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:32:10,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:32:10,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:32:10,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:32:10,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:32:10,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:32:10,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:32:10,941 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:32:10,942 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:32:10,943 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/splice-2.i [2019-09-08 01:32:11,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9202aaeb3/9f7026426e904f09bbfe3aef64f74f93/FLAGfec4b3e07 [2019-09-08 01:32:11,523 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:32:11,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/splice-2.i [2019-09-08 01:32:11,546 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9202aaeb3/9f7026426e904f09bbfe3aef64f74f93/FLAGfec4b3e07 [2019-09-08 01:32:11,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9202aaeb3/9f7026426e904f09bbfe3aef64f74f93 [2019-09-08 01:32:11,841 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:32:11,843 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:32:11,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:32:11,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:32:11,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:32:11,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:32:11" (1/1) ... [2019-09-08 01:32:11,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f76fa0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:11, skipping insertion in model container [2019-09-08 01:32:11,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:32:11" (1/1) ... [2019-09-08 01:32:11,859 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:32:11,904 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:32:12,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:32:12,354 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:32:12,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:32:12,458 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:32:12,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:12 WrapperNode [2019-09-08 01:32:12,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:32:12,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:32:12,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:32:12,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:32:12,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:12" (1/1) ... [2019-09-08 01:32:12,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:12" (1/1) ... [2019-09-08 01:32:12,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:12" (1/1) ... [2019-09-08 01:32:12,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:12" (1/1) ... [2019-09-08 01:32:12,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:12" (1/1) ... [2019-09-08 01:32:12,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:12" (1/1) ... [2019-09-08 01:32:12,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:12" (1/1) ... [2019-09-08 01:32:12,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:32:12,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:32:12,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:32:12,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:32:12,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:32:12,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:32:12,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:32:12,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-08 01:32:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-08 01:32:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-09-08 01:32:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-09-08 01:32:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-09-08 01:32:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-08 01:32:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:32:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:32:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 01:32:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-08 01:32:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-08 01:32:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-08 01:32:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-08 01:32:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-08 01:32:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-08 01:32:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-08 01:32:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-08 01:32:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-08 01:32:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-08 01:32:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-08 01:32:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-08 01:32:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-08 01:32:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-08 01:32:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-08 01:32:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-08 01:32:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-08 01:32:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-08 01:32:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-09-08 01:32:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-09-08 01:32:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-09-08 01:32:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-08 01:32:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-08 01:32:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-08 01:32:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-08 01:32:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-08 01:32:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-08 01:32:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-08 01:32:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-08 01:32:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-08 01:32:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-08 01:32:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-08 01:32:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-08 01:32:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-08 01:32:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-08 01:32:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-08 01:32:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-08 01:32:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-08 01:32:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-08 01:32:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-08 01:32:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-08 01:32:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-08 01:32:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-08 01:32:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-08 01:32:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-08 01:32:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-08 01:32:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-08 01:32:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-08 01:32:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-08 01:32:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-08 01:32:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-08 01:32:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-08 01:32:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-08 01:32:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-08 01:32:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-08 01:32:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 01:32:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-08 01:32:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-08 01:32:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 01:32:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-08 01:32:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-08 01:32:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-08 01:32:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-08 01:32:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-08 01:32:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-08 01:32:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-08 01:32:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-08 01:32:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-08 01:32:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-08 01:32:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-08 01:32:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-08 01:32:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-08 01:32:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-08 01:32:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-08 01:32:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-08 01:32:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-08 01:32:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-08 01:32:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-08 01:32:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-08 01:32:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-08 01:32:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-08 01:32:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-08 01:32:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-08 01:32:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-08 01:32:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-08 01:32:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-08 01:32:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-08 01:32:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-08 01:32:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-08 01:32:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-08 01:32:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-08 01:32:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-08 01:32:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-08 01:32:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-08 01:32:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-08 01:32:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-08 01:32:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-08 01:32:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-08 01:32:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-08 01:32:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-08 01:32:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-08 01:32:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-08 01:32:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-08 01:32:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-08 01:32:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-08 01:32:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-08 01:32:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-08 01:32:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-08 01:32:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:32:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 01:32:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:32:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 01:32:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 01:32:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:32:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:32:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:32:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:32:12,970 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-08 01:32:13,195 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:32:13,195 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-08 01:32:13,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:32:13 BoogieIcfgContainer [2019-09-08 01:32:13,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:32:13,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:32:13,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:32:13,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:32:13,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:32:11" (1/3) ... [2019-09-08 01:32:13,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661fddf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:32:13, skipping insertion in model container [2019-09-08 01:32:13,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:12" (2/3) ... [2019-09-08 01:32:13,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661fddf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:32:13, skipping insertion in model container [2019-09-08 01:32:13,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:32:13" (3/3) ... [2019-09-08 01:32:13,207 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-2.i [2019-09-08 01:32:13,217 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:32:13,225 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:32:13,248 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:32:13,274 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:32:13,274 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:32:13,274 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:32:13,275 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:32:13,275 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:32:13,275 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:32:13,275 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:32:13,275 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:32:13,275 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:32:13,290 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-09-08 01:32:13,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-08 01:32:13,296 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:32:13,297 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:32:13,299 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:32:13,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:32:13,305 INFO L82 PathProgramCache]: Analyzing trace with hash 661731879, now seen corresponding path program 1 times [2019-09-08 01:32:13,307 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:32:13,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:32:13,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:32:13,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:32:13,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:32:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:32:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:32:13,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:32:13,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:32:13,445 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:32:13,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:32:13,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:32:13,463 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-09-08 01:32:13,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:32:13,490 INFO L93 Difference]: Finished difference Result 54 states and 77 transitions. [2019-09-08 01:32:13,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:32:13,492 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-09-08 01:32:13,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:32:13,504 INFO L225 Difference]: With dead ends: 54 [2019-09-08 01:32:13,504 INFO L226 Difference]: Without dead ends: 27 [2019-09-08 01:32:13,508 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:32:13,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-09-08 01:32:13,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-09-08 01:32:13,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-09-08 01:32:13,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-09-08 01:32:13,555 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 16 [2019-09-08 01:32:13,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:32:13,556 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-09-08 01:32:13,556 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:32:13,556 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2019-09-08 01:32:13,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-08 01:32:13,557 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:32:13,558 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:32:13,558 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:32:13,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:32:13,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1973627133, now seen corresponding path program 1 times [2019-09-08 01:32:13,559 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:32:13,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:32:13,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:32:13,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:32:13,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:32:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:32:13,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:32:13,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:32:13,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:32:13,696 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:32:13,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:32:13,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:32:13,697 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand 4 states. [2019-09-08 01:32:13,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:32:13,799 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2019-09-08 01:32:13,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 01:32:13,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-09-08 01:32:13,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:32:13,803 INFO L225 Difference]: With dead ends: 44 [2019-09-08 01:32:13,804 INFO L226 Difference]: Without dead ends: 37 [2019-09-08 01:32:13,805 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 01:32:13,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-09-08 01:32:13,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2019-09-08 01:32:13,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-09-08 01:32:13,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2019-09-08 01:32:13,817 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 18 [2019-09-08 01:32:13,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:32:13,818 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2019-09-08 01:32:13,818 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:32:13,818 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2019-09-08 01:32:13,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 01:32:13,821 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:32:13,821 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:32:13,822 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:32:13,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:32:13,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1721544590, now seen corresponding path program 1 times [2019-09-08 01:32:13,822 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:32:13,823 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:32:13,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:32:13,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:32:13,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:32:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:32:13,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:32:13,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:32:13,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:32:13,967 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:32:13,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:32:13,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:32:13,967 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 4 states. [2019-09-08 01:32:14,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:32:14,064 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2019-09-08 01:32:14,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 01:32:14,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-09-08 01:32:14,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:32:14,070 INFO L225 Difference]: With dead ends: 51 [2019-09-08 01:32:14,070 INFO L226 Difference]: Without dead ends: 43 [2019-09-08 01:32:14,072 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 01:32:14,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-09-08 01:32:14,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2019-09-08 01:32:14,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-09-08 01:32:14,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2019-09-08 01:32:14,087 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 20 [2019-09-08 01:32:14,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:32:14,089 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2019-09-08 01:32:14,089 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:32:14,089 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2019-09-08 01:32:14,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-08 01:32:14,092 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:32:14,092 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:32:14,092 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:32:14,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:32:14,094 INFO L82 PathProgramCache]: Analyzing trace with hash -918584693, now seen corresponding path program 1 times [2019-09-08 01:32:14,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:32:14,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:32:14,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:32:14,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:32:14,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:32:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:32:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:32:14,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:32:14,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 01:32:14,221 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 01:32:14,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 01:32:14,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 01:32:14,223 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand 6 states. [2019-09-08 01:32:14,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:32:14,382 INFO L93 Difference]: Finished difference Result 74 states and 98 transitions. [2019-09-08 01:32:14,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 01:32:14,382 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-09-08 01:32:14,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:32:14,383 INFO L225 Difference]: With dead ends: 74 [2019-09-08 01:32:14,384 INFO L226 Difference]: Without dead ends: 47 [2019-09-08 01:32:14,384 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-09-08 01:32:14,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-09-08 01:32:14,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2019-09-08 01:32:14,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-09-08 01:32:14,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2019-09-08 01:32:14,392 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 21 [2019-09-08 01:32:14,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:32:14,392 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2019-09-08 01:32:14,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 01:32:14,392 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2019-09-08 01:32:14,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-08 01:32:14,393 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:32:14,393 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-08 01:32:14,394 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:32:14,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:32:14,394 INFO L82 PathProgramCache]: Analyzing trace with hash -743556192, now seen corresponding path program 1 times [2019-09-08 01:32:14,394 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:32:14,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:32:14,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:32:14,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:32:14,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:32:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:32:14,461 ERROR L253 erpolLogProxyWrapper]: Interpolant 13 not inductive: (Check returned sat) [2019-09-08 01:32:14,484 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:969) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:168) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-09-08 01:32:14,494 INFO L168 Benchmark]: Toolchain (without parser) took 2650.54 ms. Allocated memory was 133.2 MB in the beginning and 224.9 MB in the end (delta: 91.8 MB). Free memory was 87.6 MB in the beginning and 153.6 MB in the end (delta: -66.1 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:32:14,496 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:32:14,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.59 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.3 MB in the beginning and 163.9 MB in the end (delta: -76.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:32:14,499 INFO L168 Benchmark]: Boogie Preprocessor took 92.07 ms. Allocated memory is still 199.8 MB. Free memory was 163.9 MB in the beginning and 160.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:32:14,499 INFO L168 Benchmark]: RCFGBuilder took 644.69 ms. Allocated memory is still 199.8 MB. Free memory was 160.5 MB in the beginning and 115.4 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:32:14,502 INFO L168 Benchmark]: TraceAbstraction took 1293.52 ms. Allocated memory was 199.8 MB in the beginning and 224.9 MB in the end (delta: 25.2 MB). Free memory was 115.4 MB in the beginning and 153.6 MB in the end (delta: -38.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-08 01:32:14,511 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 615.59 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.3 MB in the beginning and 163.9 MB in the end (delta: -76.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.07 ms. Allocated memory is still 199.8 MB. Free memory was 163.9 MB in the beginning and 160.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 644.69 ms. Allocated memory is still 199.8 MB. Free memory was 160.5 MB in the beginning and 115.4 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1293.52 ms. Allocated memory was 199.8 MB in the beginning and 224.9 MB in the end (delta: 25.2 MB). Free memory was 115.4 MB in the beginning and 153.6 MB in the end (delta: -38.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:969) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...