java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/heap-data/shared_mem1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 22:18:36,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 22:18:36,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 22:18:36,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 22:18:36,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 22:18:36,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 22:18:36,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 22:18:36,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 22:18:36,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 22:18:36,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 22:18:36,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 22:18:36,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 22:18:36,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 22:18:36,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 22:18:36,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 22:18:36,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 22:18:36,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 22:18:36,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 22:18:36,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 22:18:36,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 22:18:36,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 22:18:36,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 22:18:36,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 22:18:36,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 22:18:36,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 22:18:36,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 22:18:36,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 22:18:36,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 22:18:36,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 22:18:36,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 22:18:36,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 22:18:36,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 22:18:36,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 22:18:36,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 22:18:36,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 22:18:36,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 22:18:36,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 22:18:36,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 22:18:36,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 22:18:36,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 22:18:36,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 22:18:36,705 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-02 22:18:36,719 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 22:18:36,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 22:18:36,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 22:18:36,720 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 22:18:36,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 22:18:36,721 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 22:18:36,721 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 22:18:36,722 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 22:18:36,722 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 22:18:36,722 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 22:18:36,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 22:18:36,723 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 22:18:36,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 22:18:36,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 22:18:36,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 22:18:36,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 22:18:36,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 22:18:36,724 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 22:18:36,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 22:18:36,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 22:18:36,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 22:18:36,725 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 22:18:36,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 22:18:36,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 22:18:36,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 22:18:36,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 22:18:36,726 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 22:18:36,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 22:18:36,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 22:18:36,726 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 22:18:36,754 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 22:18:36,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 22:18:36,769 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 22:18:36,771 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 22:18:36,771 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 22:18:36,772 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/shared_mem1.i [2019-10-02 22:18:36,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3beda5135/1428411cd8d94f458b49940dcec62acb/FLAG4f07225be [2019-10-02 22:18:37,333 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 22:18:37,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/shared_mem1.i [2019-10-02 22:18:37,355 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3beda5135/1428411cd8d94f458b49940dcec62acb/FLAG4f07225be [2019-10-02 22:18:37,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3beda5135/1428411cd8d94f458b49940dcec62acb [2019-10-02 22:18:37,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 22:18:37,585 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 22:18:37,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 22:18:37,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 22:18:37,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 22:18:37,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:18:37" (1/1) ... [2019-10-02 22:18:37,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b09b9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:37, skipping insertion in model container [2019-10-02 22:18:37,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:18:37" (1/1) ... [2019-10-02 22:18:37,601 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 22:18:37,640 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 22:18:38,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 22:18:38,239 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 22:18:38,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 22:18:38,344 INFO L192 MainTranslator]: Completed translation [2019-10-02 22:18:38,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:38 WrapperNode [2019-10-02 22:18:38,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 22:18:38,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 22:18:38,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 22:18:38,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 22:18:38,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:38" (1/1) ... [2019-10-02 22:18:38,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:38" (1/1) ... [2019-10-02 22:18:38,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:38" (1/1) ... [2019-10-02 22:18:38,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:38" (1/1) ... [2019-10-02 22:18:38,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:38" (1/1) ... [2019-10-02 22:18:38,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:38" (1/1) ... [2019-10-02 22:18:38,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:38" (1/1) ... [2019-10-02 22:18:38,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 22:18:38,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 22:18:38,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 22:18:38,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 22:18:38,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:38" (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 [2019-10-02 22:18:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 22:18:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 22:18:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-02 22:18:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-02 22:18:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 22:18:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 22:18:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 22:18:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-02 22:18:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-02 22:18:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-02 22:18:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-02 22:18:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-02 22:18:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-02 22:18:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-02 22:18:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-02 22:18:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-02 22:18:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-02 22:18:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-02 22:18:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-02 22:18:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-02 22:18:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-02 22:18:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-02 22:18:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-02 22:18:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-02 22:18:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-02 22:18:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-02 22:18:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-02 22:18:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-02 22:18:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-02 22:18:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-02 22:18:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-02 22:18:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-02 22:18:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-02 22:18:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-02 22:18:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-02 22:18:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-02 22:18:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-02 22:18:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-02 22:18:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-02 22:18:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-02 22:18:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-02 22:18:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-02 22:18:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-02 22:18:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-02 22:18:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-02 22:18:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-02 22:18:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-02 22:18:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-02 22:18:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-02 22:18:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-02 22:18:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-02 22:18:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-02 22:18:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-02 22:18:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-02 22:18:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-02 22:18:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-02 22:18:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-02 22:18:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-02 22:18:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-02 22:18:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 22:18:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-02 22:18:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-02 22:18:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 22:18:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-02 22:18:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-02 22:18:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-02 22:18:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-02 22:18:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-02 22:18:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-02 22:18:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-02 22:18:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-02 22:18:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-02 22:18:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 22:18:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-02 22:18:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-02 22:18:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-02 22:18:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-02 22:18:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-02 22:18:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-02 22:18:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-02 22:18:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-02 22:18:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-02 22:18:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-02 22:18:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-02 22:18:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-02 22:18:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-02 22:18:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-02 22:18:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-02 22:18:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-02 22:18:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-02 22:18:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-02 22:18:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-02 22:18:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-02 22:18:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-02 22:18:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-02 22:18:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-02 22:18:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-02 22:18:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-02 22:18:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-02 22:18:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-02 22:18:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-02 22:18:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-02 22:18:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-02 22:18:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-02 22:18:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-02 22:18:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-02 22:18:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-02 22:18:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-02 22:18:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-02 22:18:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-02 22:18:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-02 22:18:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-02 22:18:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 22:18:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 22:18:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 22:18:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 22:18:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 22:18:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 22:18:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 22:18:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 22:18:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 22:18:39,085 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 22:18:39,086 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-02 22:18:39,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:18:39 BoogieIcfgContainer [2019-10-02 22:18:39,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 22:18:39,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 22:18:39,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 22:18:39,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 22:18:39,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 10:18:37" (1/3) ... [2019-10-02 22:18:39,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5288fa4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:18:39, skipping insertion in model container [2019-10-02 22:18:39,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:38" (2/3) ... [2019-10-02 22:18:39,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5288fa4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:18:39, skipping insertion in model container [2019-10-02 22:18:39,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:18:39" (3/3) ... [2019-10-02 22:18:39,097 INFO L109 eAbstractionObserver]: Analyzing ICFG shared_mem1.i [2019-10-02 22:18:39,106 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 22:18:39,113 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 22:18:39,128 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 22:18:39,158 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 22:18:39,158 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 22:18:39,158 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 22:18:39,158 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 22:18:39,159 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 22:18:39,159 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 22:18:39,159 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 22:18:39,159 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 22:18:39,170 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-10-02 22:18:39,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-02 22:18:39,180 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:39,181 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:39,183 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:39,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:39,188 INFO L82 PathProgramCache]: Analyzing trace with hash -53964180, now seen corresponding path program 1 times [2019-10-02 22:18:39,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:39,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:39,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:39,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:39,247 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:39,357 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:39,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 22:18:39,358 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:39,363 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 22:18:39,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 22:18:39,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:18:39,380 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-10-02 22:18:39,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:39,393 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-10-02 22:18:39,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 22:18:39,394 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-02 22:18:39,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:39,402 INFO L225 Difference]: With dead ends: 21 [2019-10-02 22:18:39,402 INFO L226 Difference]: Without dead ends: 17 [2019-10-02 22:18:39,404 INFO L640 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 [2019-10-02 22:18:39,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-02 22:18:39,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-10-02 22:18:39,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-02 22:18:39,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-10-02 22:18:39,439 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 14 [2019-10-02 22:18:39,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:39,439 INFO L475 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-10-02 22:18:39,440 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 22:18:39,440 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-10-02 22:18:39,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-02 22:18:39,441 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:39,441 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:39,441 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:39,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:39,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1423019225, now seen corresponding path program 1 times [2019-10-02 22:18:39,442 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:39,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:39,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:39,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:39,447 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:39,792 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:39,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 22:18:39,792 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:39,794 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 22:18:39,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 22:18:39,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-02 22:18:39,795 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 8 states. [2019-10-02 22:18:40,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:40,133 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2019-10-02 22:18:40,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 22:18:40,134 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-10-02 22:18:40,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:40,136 INFO L225 Difference]: With dead ends: 31 [2019-10-02 22:18:40,137 INFO L226 Difference]: Without dead ends: 31 [2019-10-02 22:18:40,138 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-02 22:18:40,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-02 22:18:40,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2019-10-02 22:18:40,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-02 22:18:40,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-10-02 22:18:40,144 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 15 [2019-10-02 22:18:40,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:40,144 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-10-02 22:18:40,144 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 22:18:40,145 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2019-10-02 22:18:40,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-02 22:18:40,145 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:40,146 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:40,146 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:40,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:40,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1423021147, now seen corresponding path program 1 times [2019-10-02 22:18:40,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:40,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:40,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:40,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:40,151 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:40,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:40,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 22:18:40,464 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:40,464 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 22:18:40,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 22:18:40,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-02 22:18:40,465 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand 7 states. [2019-10-02 22:18:40,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:40,734 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2019-10-02 22:18:40,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 22:18:40,735 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-10-02 22:18:40,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:40,736 INFO L225 Difference]: With dead ends: 28 [2019-10-02 22:18:40,736 INFO L226 Difference]: Without dead ends: 28 [2019-10-02 22:18:40,737 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-02 22:18:40,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-10-02 22:18:40,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2019-10-02 22:18:40,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-02 22:18:40,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2019-10-02 22:18:40,744 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 15 [2019-10-02 22:18:40,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:40,744 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-10-02 22:18:40,744 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 22:18:40,745 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2019-10-02 22:18:40,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-02 22:18:40,747 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:40,747 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:40,748 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:40,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:40,748 INFO L82 PathProgramCache]: Analyzing trace with hash -442037965, now seen corresponding path program 1 times [2019-10-02 22:18:40,748 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:40,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:40,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:40,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:40,756 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:41,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:41,154 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 22:18:41,154 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-02 22:18:41,155 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2019-10-02 22:18:41,156 INFO L207 CegarAbsIntRunner]: [2], [3], [4], [9], [12], [14], [17], [24], [33], [36], [40], [43], [49], [50], [64], [65], [66] [2019-10-02 22:18:41,216 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 22:18:41,216 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 22:18:41,284 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 22:18:41,286 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 45 variables. [2019-10-02 22:18:41,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:41,290 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 22:18:41,327 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-02 22:18:41,327 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 22:18:41,328 INFO L420 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2019-10-02 22:18:41,329 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 22:18:41,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 22:18:41,330 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2019-10-02 22:18:41,330 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:41,330 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 22:18:41,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 22:18:41,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:18:41,331 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand 2 states. [2019-10-02 22:18:41,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:41,331 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-02 22:18:41,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 22:18:41,332 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-02 22:18:41,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:41,332 INFO L225 Difference]: With dead ends: 6 [2019-10-02 22:18:41,332 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 22:18:41,332 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:18:41,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 22:18:41,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 22:18:41,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 22:18:41,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 22:18:41,333 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-02 22:18:41,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:41,334 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 22:18:41,334 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 22:18:41,334 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 22:18:41,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 22:18:41,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 10:18:41 BoogieIcfgContainer [2019-10-02 22:18:41,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 22:18:41,340 INFO L168 Benchmark]: Toolchain (without parser) took 3755.49 ms. Allocated memory was 141.6 MB in the beginning and 254.3 MB in the end (delta: 112.7 MB). Free memory was 87.8 MB in the beginning and 211.3 MB in the end (delta: -123.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-02 22:18:41,341 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 107.6 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 22:18:41,342 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.97 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 87.6 MB in the beginning and 169.3 MB in the end (delta: -81.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-10-02 22:18:41,343 INFO L168 Benchmark]: Boogie Preprocessor took 77.25 ms. Allocated memory is still 203.9 MB. Free memory was 169.3 MB in the beginning and 166.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-10-02 22:18:41,344 INFO L168 Benchmark]: RCFGBuilder took 659.46 ms. Allocated memory is still 203.9 MB. Free memory was 166.3 MB in the beginning and 123.0 MB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. [2019-10-02 22:18:41,345 INFO L168 Benchmark]: TraceAbstraction took 2248.53 ms. Allocated memory was 203.9 MB in the beginning and 254.3 MB in the end (delta: 50.3 MB). Free memory was 122.5 MB in the beginning and 211.3 MB in the end (delta: -88.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-02 22:18:41,348 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 107.6 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 758.97 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 87.6 MB in the beginning and 169.3 MB in the end (delta: -81.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 77.25 ms. Allocated memory is still 203.9 MB. Free memory was 169.3 MB in the beginning and 166.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 659.46 ms. Allocated memory is still 203.9 MB. Free memory was 166.3 MB in the beginning and 123.0 MB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2248.53 ms. Allocated memory was 203.9 MB in the beginning and 254.3 MB in the end (delta: 50.3 MB). Free memory was 122.5 MB in the beginning and 211.3 MB in the end (delta: -88.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 591]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 27 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 57 SDtfs, 28 SDslu, 122 SDs, 0 SdLazy, 97 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.8529411764705882 AbsIntWeakeningRatio, 2.0588235294117645 AbsIntAvgWeakeningVarsNumRemoved, 0.35294117647058826 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 17569 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...