/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-11 01:08:56,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-11 01:08:56,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-11 01:08:56,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-11 01:08:56,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-11 01:08:56,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-11 01:08:56,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-11 01:08:56,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-11 01:08:56,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-11 01:08:56,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-11 01:08:56,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-11 01:08:56,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-11 01:08:56,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-11 01:08:56,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-11 01:08:56,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-11 01:08:56,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-11 01:08:56,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-11 01:08:56,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-11 01:08:56,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-11 01:08:56,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-11 01:08:56,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-11 01:08:56,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-11 01:08:56,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-11 01:08:56,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-11 01:08:56,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-11 01:08:56,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-11 01:08:56,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-11 01:08:56,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-11 01:08:56,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-11 01:08:56,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-11 01:08:56,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-11 01:08:56,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-11 01:08:56,510 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-11 01:08:56,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-11 01:08:56,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-11 01:08:56,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-11 01:08:56,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-11 01:08:56,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-11 01:08:56,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-11 01:08:56,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-11 01:08:56,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-11 01:08:56,516 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-11 01:08:56,525 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-11 01:08:56,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-11 01:08:56,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-11 01:08:56,527 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-11 01:08:56,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-11 01:08:56,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-11 01:08:56,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-11 01:08:56,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-11 01:08:56,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-11 01:08:56,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-11 01:08:56,529 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-11 01:08:56,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-11 01:08:56,529 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-11 01:08:56,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-11 01:08:56,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-11 01:08:56,530 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-11 01:08:56,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-11 01:08:56,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-11 01:08:56,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-11 01:08:56,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-11 01:08:56,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-11 01:08:56,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-11 01:08:56,531 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-11 01:08:56,824 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-11 01:08:56,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-11 01:08:56,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-11 01:08:56,844 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-11 01:08:56,844 INFO L275 PluginConnector]: CDTParser initialized [2020-07-11 01:08:56,845 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-07-11 01:08:56,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9386954b1/0b7eaa4b806b492791af0661077ef230/FLAG711d32194 [2020-07-11 01:08:57,459 INFO L306 CDTParser]: Found 1 translation units. [2020-07-11 01:08:57,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-07-11 01:08:57,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9386954b1/0b7eaa4b806b492791af0661077ef230/FLAG711d32194 [2020-07-11 01:08:57,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9386954b1/0b7eaa4b806b492791af0661077ef230 [2020-07-11 01:08:57,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-11 01:08:57,747 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-11 01:08:57,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-11 01:08:57,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-11 01:08:57,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-11 01:08:57,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 01:08:57" (1/1) ... [2020-07-11 01:08:57,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a3cdb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:57, skipping insertion in model container [2020-07-11 01:08:57,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 01:08:57" (1/1) ... [2020-07-11 01:08:57,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-11 01:08:57,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-11 01:08:58,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 01:08:58,274 INFO L203 MainTranslator]: Completed pre-run [2020-07-11 01:08:58,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 01:08:58,398 INFO L208 MainTranslator]: Completed translation [2020-07-11 01:08:58,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:58 WrapperNode [2020-07-11 01:08:58,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-11 01:08:58,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-11 01:08:58,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-11 01:08:58,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-11 01:08:58,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:58" (1/1) ... [2020-07-11 01:08:58,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:58" (1/1) ... [2020-07-11 01:08:58,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:58" (1/1) ... [2020-07-11 01:08:58,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:58" (1/1) ... [2020-07-11 01:08:58,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:58" (1/1) ... [2020-07-11 01:08:58,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:58" (1/1) ... [2020-07-11 01:08:58,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:58" (1/1) ... [2020-07-11 01:08:58,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-11 01:08:58,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-11 01:08:58,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-11 01:08:58,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-11 01:08:58,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:58" (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 [2020-07-11 01:08:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-11 01:08:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-11 01:08:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-11 01:08:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-11 01:08:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-07-11 01:08:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-07-11 01:08:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-07-11 01:08:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-07-11 01:08:58,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-11 01:08:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-11 01:08:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-11 01:08:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-11 01:08:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-11 01:08:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-11 01:08:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-11 01:08:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-11 01:08:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-11 01:08:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-11 01:08:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-11 01:08:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-11 01:08:58,544 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-11 01:08:58,544 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-11 01:08:58,544 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-11 01:08:58,544 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-11 01:08:58,544 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-11 01:08:58,544 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-11 01:08:58,545 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-11 01:08:58,545 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-11 01:08:58,545 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-11 01:08:58,545 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-07-11 01:08:58,545 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-07-11 01:08:58,545 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-07-11 01:08:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-11 01:08:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-11 01:08:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-11 01:08:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-11 01:08:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-11 01:08:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-11 01:08:58,546 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-11 01:08:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-11 01:08:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-11 01:08:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-11 01:08:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-11 01:08:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-11 01:08:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-11 01:08:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-11 01:08:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-11 01:08:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-11 01:08:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-11 01:08:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-11 01:08:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-11 01:08:58,549 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-11 01:08:58,549 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-11 01:08:58,549 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-11 01:08:58,549 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-11 01:08:58,549 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-11 01:08:58,549 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-11 01:08:58,549 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-11 01:08:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-11 01:08:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-11 01:08:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-11 01:08:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-11 01:08:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-11 01:08:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-11 01:08:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-11 01:08:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-11 01:08:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-11 01:08:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-11 01:08:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-11 01:08:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-11 01:08:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-11 01:08:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-11 01:08:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-11 01:08:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-11 01:08:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-11 01:08:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-11 01:08:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-11 01:08:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-11 01:08:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-11 01:08:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-11 01:08:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-11 01:08:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-11 01:08:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-11 01:08:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-11 01:08:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-11 01:08:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-11 01:08:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-11 01:08:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-11 01:08:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-11 01:08:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-11 01:08:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-11 01:08:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-11 01:08:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-11 01:08:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-11 01:08:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-11 01:08:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-11 01:08:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-11 01:08:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-11 01:08:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-11 01:08:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-11 01:08:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-11 01:08:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-11 01:08:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-11 01:08:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-11 01:08:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-11 01:08:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-11 01:08:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-11 01:08:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-11 01:08:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-11 01:08:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-11 01:08:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-11 01:08:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-11 01:08:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-11 01:08:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-11 01:08:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-11 01:08:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-11 01:08:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-11 01:08:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-11 01:08:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-07-11 01:08:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-11 01:08:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-11 01:08:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-11 01:08:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-11 01:08:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-11 01:08:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-11 01:08:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-11 01:08:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-11 01:08:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-11 01:08:58,960 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-07-11 01:08:59,209 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-11 01:08:59,210 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-11 01:08:59,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 01:08:59 BoogieIcfgContainer [2020-07-11 01:08:59,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-11 01:08:59,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-11 01:08:59,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-11 01:08:59,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-11 01:08:59,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 01:08:57" (1/3) ... [2020-07-11 01:08:59,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afaceb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 01:08:59, skipping insertion in model container [2020-07-11 01:08:59,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:58" (2/3) ... [2020-07-11 01:08:59,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afaceb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 01:08:59, skipping insertion in model container [2020-07-11 01:08:59,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 01:08:59" (3/3) ... [2020-07-11 01:08:59,225 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2020-07-11 01:08:59,236 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-11 01:08:59,245 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-11 01:08:59,264 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-11 01:08:59,282 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-11 01:08:59,282 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-11 01:08:59,282 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-11 01:08:59,283 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-11 01:08:59,283 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-11 01:08:59,283 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-11 01:08:59,283 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-11 01:08:59,284 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-11 01:08:59,296 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2020-07-11 01:08:59,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-11 01:08:59,307 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:08:59,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:08:59,309 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:08:59,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:08:59,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1527556188, now seen corresponding path program 1 times [2020-07-11 01:08:59,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:08:59,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839832560] [2020-07-11 01:08:59,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:08:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:59,543 INFO L280 TraceCheckUtils]: 0: Hoare triple {76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {69#true} is VALID [2020-07-11 01:08:59,543 INFO L280 TraceCheckUtils]: 1: Hoare triple {69#true} #valid := #valid[0 := 0]; {69#true} is VALID [2020-07-11 01:08:59,544 INFO L280 TraceCheckUtils]: 2: Hoare triple {69#true} assume 0 < #StackHeapBarrier; {69#true} is VALID [2020-07-11 01:08:59,544 INFO L280 TraceCheckUtils]: 3: Hoare triple {69#true} assume true; {69#true} is VALID [2020-07-11 01:08:59,545 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {69#true} {69#true} #142#return; {69#true} is VALID [2020-07-11 01:08:59,549 INFO L263 TraceCheckUtils]: 0: Hoare triple {69#true} call ULTIMATE.init(); {76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:08:59,549 INFO L280 TraceCheckUtils]: 1: Hoare triple {76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {69#true} is VALID [2020-07-11 01:08:59,549 INFO L280 TraceCheckUtils]: 2: Hoare triple {69#true} #valid := #valid[0 := 0]; {69#true} is VALID [2020-07-11 01:08:59,550 INFO L280 TraceCheckUtils]: 3: Hoare triple {69#true} assume 0 < #StackHeapBarrier; {69#true} is VALID [2020-07-11 01:08:59,550 INFO L280 TraceCheckUtils]: 4: Hoare triple {69#true} assume true; {69#true} is VALID [2020-07-11 01:08:59,550 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {69#true} {69#true} #142#return; {69#true} is VALID [2020-07-11 01:08:59,551 INFO L263 TraceCheckUtils]: 6: Hoare triple {69#true} call #t~ret12 := main(); {69#true} is VALID [2020-07-11 01:08:59,551 INFO L280 TraceCheckUtils]: 7: Hoare triple {69#true} SUMMARY for call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {69#true} is VALID [2020-07-11 01:08:59,551 INFO L280 TraceCheckUtils]: 8: Hoare triple {69#true} ~a~0.base, ~a~0.offset := #t~malloc2.base, #t~malloc2.offset; {69#true} is VALID [2020-07-11 01:08:59,551 INFO L280 TraceCheckUtils]: 9: Hoare triple {69#true} assume !(~a~0.base == 0 && ~a~0.offset == 0); {69#true} is VALID [2020-07-11 01:08:59,552 INFO L280 TraceCheckUtils]: 10: Hoare triple {69#true} havoc ~t~0.base, ~t~0.offset; {69#true} is VALID [2020-07-11 01:08:59,552 INFO L280 TraceCheckUtils]: 11: Hoare triple {69#true} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {69#true} is VALID [2020-07-11 01:08:59,552 INFO L280 TraceCheckUtils]: 12: Hoare triple {69#true} ~i~0 := 0; {69#true} is VALID [2020-07-11 01:08:59,553 INFO L280 TraceCheckUtils]: 13: Hoare triple {69#true} assume !true; {70#false} is VALID [2020-07-11 01:08:59,554 INFO L280 TraceCheckUtils]: 14: Hoare triple {70#false} SUMMARY for call write~int(~i~0, ~p~0.base, ~p~0.offset, 4); srcloc: L526-12 {70#false} is VALID [2020-07-11 01:08:59,554 INFO L280 TraceCheckUtils]: 15: Hoare triple {70#false} SUMMARY for call write~$Pointer$(0, 0, ~p~0.base, 4 + ~p~0.offset, 4); srcloc: L534 {70#false} is VALID [2020-07-11 01:08:59,554 INFO L280 TraceCheckUtils]: 16: Hoare triple {70#false} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {70#false} is VALID [2020-07-11 01:08:59,555 INFO L280 TraceCheckUtils]: 17: Hoare triple {70#false} ~i~0 := 0; {70#false} is VALID [2020-07-11 01:08:59,555 INFO L280 TraceCheckUtils]: 18: Hoare triple {70#false} assume !!(~p~0.base != 0 || ~p~0.offset != 0); {70#false} is VALID [2020-07-11 01:08:59,555 INFO L280 TraceCheckUtils]: 19: Hoare triple {70#false} SUMMARY for call #t~mem8 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L539 {70#false} is VALID [2020-07-11 01:08:59,556 INFO L280 TraceCheckUtils]: 20: Hoare triple {70#false} assume 1 != #t~mem8; {70#false} is VALID [2020-07-11 01:08:59,556 INFO L280 TraceCheckUtils]: 21: Hoare triple {70#false} havoc #t~mem8; {70#false} is VALID [2020-07-11 01:08:59,557 INFO L280 TraceCheckUtils]: 22: Hoare triple {70#false} assume !false; {70#false} is VALID [2020-07-11 01:08:59,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:08:59,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839832560] [2020-07-11 01:08:59,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:08:59,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:08:59,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458611443] [2020-07-11 01:08:59,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-11 01:08:59,589 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:08:59,593 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:08:59,638 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:59,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:08:59,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:08:59,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:08:59,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:08:59,651 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 3 states. [2020-07-11 01:09:00,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:00,028 INFO L93 Difference]: Finished difference Result 95 states and 108 transitions. [2020-07-11 01:09:00,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:09:00,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-11 01:09:00,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:09:00,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:09:00,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2020-07-11 01:09:00,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:09:00,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2020-07-11 01:09:00,069 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 108 transitions. [2020-07-11 01:09:00,220 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:00,250 INFO L225 Difference]: With dead ends: 95 [2020-07-11 01:09:00,251 INFO L226 Difference]: Without dead ends: 50 [2020-07-11 01:09:00,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:09:00,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-07-11 01:09:00,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-07-11 01:09:00,327 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:09:00,327 INFO L82 GeneralOperation]: Start isEquivalent. First operand 50 states. Second operand 50 states. [2020-07-11 01:09:00,328 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 50 states. [2020-07-11 01:09:00,328 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 50 states. [2020-07-11 01:09:00,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:00,336 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2020-07-11 01:09:00,336 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-07-11 01:09:00,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:00,337 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:00,337 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 50 states. [2020-07-11 01:09:00,338 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 50 states. [2020-07-11 01:09:00,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:00,343 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2020-07-11 01:09:00,343 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-07-11 01:09:00,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:00,345 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:00,345 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:09:00,345 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:09:00,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-07-11 01:09:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2020-07-11 01:09:00,355 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 23 [2020-07-11 01:09:00,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:09:00,356 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2020-07-11 01:09:00,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:09:00,356 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 50 states and 52 transitions. [2020-07-11 01:09:00,425 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:00,425 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-07-11 01:09:00,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-11 01:09:00,426 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:09:00,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:09:00,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-11 01:09:00,427 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:09:00,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:09:00,428 INFO L82 PathProgramCache]: Analyzing trace with hash 2054563523, now seen corresponding path program 1 times [2020-07-11 01:09:00,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:09:00,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653856437] [2020-07-11 01:09:00,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:09:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:09:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:09:00,544 INFO L280 TraceCheckUtils]: 0: Hoare triple {478#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {469#true} is VALID [2020-07-11 01:09:00,544 INFO L280 TraceCheckUtils]: 1: Hoare triple {469#true} #valid := #valid[0 := 0]; {469#true} is VALID [2020-07-11 01:09:00,544 INFO L280 TraceCheckUtils]: 2: Hoare triple {469#true} assume 0 < #StackHeapBarrier; {469#true} is VALID [2020-07-11 01:09:00,545 INFO L280 TraceCheckUtils]: 3: Hoare triple {469#true} assume true; {469#true} is VALID [2020-07-11 01:09:00,545 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {469#true} {469#true} #142#return; {469#true} is VALID [2020-07-11 01:09:00,546 INFO L263 TraceCheckUtils]: 0: Hoare triple {469#true} call ULTIMATE.init(); {478#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:09:00,547 INFO L280 TraceCheckUtils]: 1: Hoare triple {478#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {469#true} is VALID [2020-07-11 01:09:00,547 INFO L280 TraceCheckUtils]: 2: Hoare triple {469#true} #valid := #valid[0 := 0]; {469#true} is VALID [2020-07-11 01:09:00,547 INFO L280 TraceCheckUtils]: 3: Hoare triple {469#true} assume 0 < #StackHeapBarrier; {469#true} is VALID [2020-07-11 01:09:00,547 INFO L280 TraceCheckUtils]: 4: Hoare triple {469#true} assume true; {469#true} is VALID [2020-07-11 01:09:00,548 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {469#true} {469#true} #142#return; {469#true} is VALID [2020-07-11 01:09:00,548 INFO L263 TraceCheckUtils]: 6: Hoare triple {469#true} call #t~ret12 := main(); {469#true} is VALID [2020-07-11 01:09:00,548 INFO L280 TraceCheckUtils]: 7: Hoare triple {469#true} SUMMARY for call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {469#true} is VALID [2020-07-11 01:09:00,549 INFO L280 TraceCheckUtils]: 8: Hoare triple {469#true} ~a~0.base, ~a~0.offset := #t~malloc2.base, #t~malloc2.offset; {469#true} is VALID [2020-07-11 01:09:00,549 INFO L280 TraceCheckUtils]: 9: Hoare triple {469#true} assume !(~a~0.base == 0 && ~a~0.offset == 0); {469#true} is VALID [2020-07-11 01:09:00,549 INFO L280 TraceCheckUtils]: 10: Hoare triple {469#true} havoc ~t~0.base, ~t~0.offset; {469#true} is VALID [2020-07-11 01:09:00,549 INFO L280 TraceCheckUtils]: 11: Hoare triple {469#true} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {469#true} is VALID [2020-07-11 01:09:00,550 INFO L280 TraceCheckUtils]: 12: Hoare triple {469#true} ~i~0 := 0; {476#(= 0 main_~i~0)} is VALID [2020-07-11 01:09:00,551 INFO L280 TraceCheckUtils]: 13: Hoare triple {476#(= 0 main_~i~0)} #t~short4 := ~i~0 < 30; {477#|main_#t~short4|} is VALID [2020-07-11 01:09:00,552 INFO L280 TraceCheckUtils]: 14: Hoare triple {477#|main_#t~short4|} assume !#t~short4; {470#false} is VALID [2020-07-11 01:09:00,552 INFO L280 TraceCheckUtils]: 15: Hoare triple {470#false} assume !#t~short4; {470#false} is VALID [2020-07-11 01:09:00,553 INFO L280 TraceCheckUtils]: 16: Hoare triple {470#false} havoc #t~short4; {470#false} is VALID [2020-07-11 01:09:00,553 INFO L280 TraceCheckUtils]: 17: Hoare triple {470#false} havoc #t~nondet3; {470#false} is VALID [2020-07-11 01:09:00,553 INFO L280 TraceCheckUtils]: 18: Hoare triple {470#false} SUMMARY for call write~int(~i~0, ~p~0.base, ~p~0.offset, 4); srcloc: L526-12 {470#false} is VALID [2020-07-11 01:09:00,554 INFO L280 TraceCheckUtils]: 19: Hoare triple {470#false} SUMMARY for call write~$Pointer$(0, 0, ~p~0.base, 4 + ~p~0.offset, 4); srcloc: L534 {470#false} is VALID [2020-07-11 01:09:00,554 INFO L280 TraceCheckUtils]: 20: Hoare triple {470#false} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {470#false} is VALID [2020-07-11 01:09:00,554 INFO L280 TraceCheckUtils]: 21: Hoare triple {470#false} ~i~0 := 0; {470#false} is VALID [2020-07-11 01:09:00,554 INFO L280 TraceCheckUtils]: 22: Hoare triple {470#false} assume !!(~p~0.base != 0 || ~p~0.offset != 0); {470#false} is VALID [2020-07-11 01:09:00,555 INFO L280 TraceCheckUtils]: 23: Hoare triple {470#false} SUMMARY for call #t~mem8 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L539 {470#false} is VALID [2020-07-11 01:09:00,555 INFO L280 TraceCheckUtils]: 24: Hoare triple {470#false} assume 1 != #t~mem8; {470#false} is VALID [2020-07-11 01:09:00,555 INFO L280 TraceCheckUtils]: 25: Hoare triple {470#false} havoc #t~mem8; {470#false} is VALID [2020-07-11 01:09:00,556 INFO L280 TraceCheckUtils]: 26: Hoare triple {470#false} assume !false; {470#false} is VALID [2020-07-11 01:09:00,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:09:00,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653856437] [2020-07-11 01:09:00,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:09:00,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-11 01:09:00,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533693004] [2020-07-11 01:09:00,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-11 01:09:00,561 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:09:00,562 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-11 01:09:00,603 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:00,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-11 01:09:00,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:09:00,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-11 01:09:00,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-11 01:09:00,604 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand 5 states. [2020-07-11 01:09:01,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:01,067 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2020-07-11 01:09:01,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-11 01:09:01,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-11 01:09:01,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:09:01,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 01:09:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 128 transitions. [2020-07-11 01:09:01,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 01:09:01,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 128 transitions. [2020-07-11 01:09:01,076 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 128 transitions. [2020-07-11 01:09:01,237 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 128 edges. 128 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:01,240 INFO L225 Difference]: With dead ends: 122 [2020-07-11 01:09:01,241 INFO L226 Difference]: Without dead ends: 85 [2020-07-11 01:09:01,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-11 01:09:01,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-07-11 01:09:01,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 52. [2020-07-11 01:09:01,275 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:09:01,275 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 52 states. [2020-07-11 01:09:01,275 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 52 states. [2020-07-11 01:09:01,276 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 52 states. [2020-07-11 01:09:01,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:01,280 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2020-07-11 01:09:01,280 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2020-07-11 01:09:01,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:01,282 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:01,282 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 85 states. [2020-07-11 01:09:01,282 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 85 states. [2020-07-11 01:09:01,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:01,286 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2020-07-11 01:09:01,287 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2020-07-11 01:09:01,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:01,288 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:01,288 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:09:01,288 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:09:01,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-07-11 01:09:01,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2020-07-11 01:09:01,291 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 27 [2020-07-11 01:09:01,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:09:01,291 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2020-07-11 01:09:01,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-11 01:09:01,292 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 52 states and 54 transitions. [2020-07-11 01:09:01,350 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:01,351 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-07-11 01:09:01,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-11 01:09:01,352 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:09:01,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:09:01,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-11 01:09:01,352 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:09:01,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:09:01,353 INFO L82 PathProgramCache]: Analyzing trace with hash -2100491616, now seen corresponding path program 1 times [2020-07-11 01:09:01,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:09:01,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168247911] [2020-07-11 01:09:01,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:09:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-11 01:09:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-11 01:09:01,432 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-11 01:09:01,432 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-11 01:09:01,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-11 01:09:01,471 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-11 01:09:01,472 WARN L170 areAnnotationChecker]: myexitENTRY has no Hoare annotation [2020-07-11 01:09:01,472 WARN L170 areAnnotationChecker]: __bswap_32ENTRY has no Hoare annotation [2020-07-11 01:09:01,472 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-11 01:09:01,472 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-11 01:09:01,472 WARN L170 areAnnotationChecker]: __bswap_64ENTRY has no Hoare annotation [2020-07-11 01:09:01,472 WARN L170 areAnnotationChecker]: __uint16_identityENTRY has no Hoare annotation [2020-07-11 01:09:01,472 WARN L170 areAnnotationChecker]: __uint64_identityENTRY has no Hoare annotation [2020-07-11 01:09:01,472 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-11 01:09:01,473 WARN L170 areAnnotationChecker]: __uint32_identityENTRY has no Hoare annotation [2020-07-11 01:09:01,473 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-11 01:09:01,473 WARN L170 areAnnotationChecker]: L514 has no Hoare annotation [2020-07-11 01:09:01,473 WARN L170 areAnnotationChecker]: L164 has no Hoare annotation [2020-07-11 01:09:01,473 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-11 01:09:01,473 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-11 01:09:01,473 WARN L170 areAnnotationChecker]: L169 has no Hoare annotation [2020-07-11 01:09:01,473 WARN L170 areAnnotationChecker]: L174 has no Hoare annotation [2020-07-11 01:09:01,474 WARN L170 areAnnotationChecker]: L184 has no Hoare annotation [2020-07-11 01:09:01,474 WARN L170 areAnnotationChecker]: L521 has no Hoare annotation [2020-07-11 01:09:01,474 WARN L170 areAnnotationChecker]: L179 has no Hoare annotation [2020-07-11 01:09:01,474 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-11 01:09:01,474 WARN L170 areAnnotationChecker]: L164-1 has no Hoare annotation [2020-07-11 01:09:01,474 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-11 01:09:01,474 WARN L170 areAnnotationChecker]: L169-1 has no Hoare annotation [2020-07-11 01:09:01,474 WARN L170 areAnnotationChecker]: __uint16_identityFINAL has no Hoare annotation [2020-07-11 01:09:01,475 WARN L170 areAnnotationChecker]: __uint64_identityFINAL has no Hoare annotation [2020-07-11 01:09:01,475 WARN L170 areAnnotationChecker]: L522 has no Hoare annotation [2020-07-11 01:09:01,475 WARN L170 areAnnotationChecker]: L522 has no Hoare annotation [2020-07-11 01:09:01,475 WARN L170 areAnnotationChecker]: __uint32_identityFINAL has no Hoare annotation [2020-07-11 01:09:01,475 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-11 01:09:01,475 WARN L170 areAnnotationChecker]: __bswap_32FINAL has no Hoare annotation [2020-07-11 01:09:01,475 WARN L170 areAnnotationChecker]: __bswap_64FINAL has no Hoare annotation [2020-07-11 01:09:01,475 WARN L170 areAnnotationChecker]: L522-1 has no Hoare annotation [2020-07-11 01:09:01,476 WARN L170 areAnnotationChecker]: L522-1 has no Hoare annotation [2020-07-11 01:09:01,476 WARN L170 areAnnotationChecker]: L522-3 has no Hoare annotation [2020-07-11 01:09:01,476 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-11 01:09:01,476 WARN L170 areAnnotationChecker]: L524 has no Hoare annotation [2020-07-11 01:09:01,476 WARN L170 areAnnotationChecker]: L525 has no Hoare annotation [2020-07-11 01:09:01,476 WARN L170 areAnnotationChecker]: L526-11 has no Hoare annotation [2020-07-11 01:09:01,476 WARN L170 areAnnotationChecker]: L526-11 has no Hoare annotation [2020-07-11 01:09:01,477 WARN L170 areAnnotationChecker]: L526-12 has no Hoare annotation [2020-07-11 01:09:01,477 WARN L170 areAnnotationChecker]: L526-1 has no Hoare annotation [2020-07-11 01:09:01,477 WARN L170 areAnnotationChecker]: L526-1 has no Hoare annotation [2020-07-11 01:09:01,477 WARN L170 areAnnotationChecker]: L534 has no Hoare annotation [2020-07-11 01:09:01,477 WARN L170 areAnnotationChecker]: L526-2 has no Hoare annotation [2020-07-11 01:09:01,477 WARN L170 areAnnotationChecker]: L526-5 has no Hoare annotation [2020-07-11 01:09:01,477 WARN L170 areAnnotationChecker]: L526-5 has no Hoare annotation [2020-07-11 01:09:01,477 WARN L170 areAnnotationChecker]: L535 has no Hoare annotation [2020-07-11 01:09:01,478 WARN L170 areAnnotationChecker]: L526-3 has no Hoare annotation [2020-07-11 01:09:01,478 WARN L170 areAnnotationChecker]: L526-6 has no Hoare annotation [2020-07-11 01:09:01,478 WARN L170 areAnnotationChecker]: L526-9 has no Hoare annotation [2020-07-11 01:09:01,478 WARN L170 areAnnotationChecker]: L537 has no Hoare annotation [2020-07-11 01:09:01,478 WARN L170 areAnnotationChecker]: L526-7 has no Hoare annotation [2020-07-11 01:09:01,478 WARN L170 areAnnotationChecker]: L526-10 has no Hoare annotation [2020-07-11 01:09:01,478 WARN L170 areAnnotationChecker]: L538-2 has no Hoare annotation [2020-07-11 01:09:01,479 WARN L170 areAnnotationChecker]: L538-2 has no Hoare annotation [2020-07-11 01:09:01,479 WARN L170 areAnnotationChecker]: L538-2 has no Hoare annotation [2020-07-11 01:09:01,479 WARN L170 areAnnotationChecker]: L527 has no Hoare annotation [2020-07-11 01:09:01,479 WARN L170 areAnnotationChecker]: L538-3 has no Hoare annotation [2020-07-11 01:09:01,479 WARN L170 areAnnotationChecker]: L539 has no Hoare annotation [2020-07-11 01:09:01,479 WARN L170 areAnnotationChecker]: L527-1 has no Hoare annotation [2020-07-11 01:09:01,479 WARN L170 areAnnotationChecker]: L546-2 has no Hoare annotation [2020-07-11 01:09:01,479 WARN L170 areAnnotationChecker]: L546-2 has no Hoare annotation [2020-07-11 01:09:01,480 WARN L170 areAnnotationChecker]: L546-2 has no Hoare annotation [2020-07-11 01:09:01,480 WARN L170 areAnnotationChecker]: L539-1 has no Hoare annotation [2020-07-11 01:09:01,480 WARN L170 areAnnotationChecker]: L539-1 has no Hoare annotation [2020-07-11 01:09:01,480 WARN L170 areAnnotationChecker]: L528 has no Hoare annotation [2020-07-11 01:09:01,480 WARN L170 areAnnotationChecker]: L546-3 has no Hoare annotation [2020-07-11 01:09:01,480 WARN L170 areAnnotationChecker]: L547 has no Hoare annotation [2020-07-11 01:09:01,480 WARN L170 areAnnotationChecker]: L539-2 has no Hoare annotation [2020-07-11 01:09:01,480 WARN L170 areAnnotationChecker]: L539-4 has no Hoare annotation [2020-07-11 01:09:01,480 WARN L170 areAnnotationChecker]: L529 has no Hoare annotation [2020-07-11 01:09:01,481 WARN L170 areAnnotationChecker]: L529 has no Hoare annotation [2020-07-11 01:09:01,481 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-11 01:09:01,481 WARN L170 areAnnotationChecker]: L547-1 has no Hoare annotation [2020-07-11 01:09:01,481 WARN L170 areAnnotationChecker]: L540 has no Hoare annotation [2020-07-11 01:09:01,481 WARN L170 areAnnotationChecker]: L540 has no Hoare annotation [2020-07-11 01:09:01,481 WARN L170 areAnnotationChecker]: L539-5 has no Hoare annotation [2020-07-11 01:09:01,481 WARN L170 areAnnotationChecker]: L529-1 has no Hoare annotation [2020-07-11 01:09:01,481 WARN L170 areAnnotationChecker]: L529-1 has no Hoare annotation [2020-07-11 01:09:01,482 WARN L170 areAnnotationChecker]: L529-3 has no Hoare annotation [2020-07-11 01:09:01,482 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-11 01:09:01,482 WARN L170 areAnnotationChecker]: L547-2 has no Hoare annotation [2020-07-11 01:09:01,482 WARN L170 areAnnotationChecker]: L542 has no Hoare annotation [2020-07-11 01:09:01,482 WARN L170 areAnnotationChecker]: L530 has no Hoare annotation [2020-07-11 01:09:01,482 WARN L170 areAnnotationChecker]: L548 has no Hoare annotation [2020-07-11 01:09:01,482 WARN L170 areAnnotationChecker]: L542-1 has no Hoare annotation [2020-07-11 01:09:01,482 WARN L170 areAnnotationChecker]: L531 has no Hoare annotation [2020-07-11 01:09:01,483 WARN L170 areAnnotationChecker]: L548-1 has no Hoare annotation [2020-07-11 01:09:01,483 WARN L170 areAnnotationChecker]: L543 has no Hoare annotation [2020-07-11 01:09:01,483 WARN L170 areAnnotationChecker]: L531-1 has no Hoare annotation [2020-07-11 01:09:01,483 WARN L170 areAnnotationChecker]: L543-1 has no Hoare annotation [2020-07-11 01:09:01,483 WARN L170 areAnnotationChecker]: L532 has no Hoare annotation [2020-07-11 01:09:01,483 WARN L170 areAnnotationChecker]: L543-2 has no Hoare annotation [2020-07-11 01:09:01,483 WARN L170 areAnnotationChecker]: L532-1 has no Hoare annotation [2020-07-11 01:09:01,483 WARN L170 areAnnotationChecker]: L532-2 has no Hoare annotation [2020-07-11 01:09:01,484 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-11 01:09:01,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.07 01:09:01 BoogieIcfgContainer [2020-07-11 01:09:01,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-11 01:09:01,490 INFO L168 Benchmark]: Toolchain (without parser) took 3743.19 ms. Allocated memory was 142.1 MB in the beginning and 255.3 MB in the end (delta: 113.2 MB). Free memory was 99.5 MB in the beginning and 133.2 MB in the end (delta: -33.7 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. [2020-07-11 01:09:01,491 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 142.1 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-11 01:09:01,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.13 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 165.8 MB in the end (delta: -66.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-07-11 01:09:01,493 INFO L168 Benchmark]: Boogie Preprocessor took 70.24 ms. Allocated memory is still 199.8 MB. Free memory was 165.8 MB in the beginning and 162.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-07-11 01:09:01,494 INFO L168 Benchmark]: RCFGBuilder took 744.03 ms. Allocated memory is still 199.8 MB. Free memory was 162.0 MB in the beginning and 102.4 MB in the end (delta: 59.6 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. [2020-07-11 01:09:01,494 INFO L168 Benchmark]: TraceAbstraction took 2272.01 ms. Allocated memory was 199.8 MB in the beginning and 255.3 MB in the end (delta: 55.6 MB). Free memory was 102.4 MB in the beginning and 133.2 MB in the end (delta: -30.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-07-11 01:09:01,498 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 142.1 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 651.13 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 165.8 MB in the end (delta: -66.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.24 ms. Allocated memory is still 199.8 MB. Free memory was 165.8 MB in the beginning and 162.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 744.03 ms. Allocated memory is still 199.8 MB. Free memory was 162.0 MB in the beginning and 102.4 MB in the end (delta: 59.6 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2272.01 ms. Allocated memory was 199.8 MB in the beginning and 255.3 MB in the end (delta: 55.6 MB). Free memory was 102.4 MB in the beginning and 133.2 MB in the end (delta: -30.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 540]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L521] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}] [L522] COND FALSE !(a == 0) VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}] [L523] List t; VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}] [L524] List p = a; VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L525] int i = 0; VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L526] i < 30 && __VERIFIER_nondet_int() VAL [a={-1:0}, i=0, i < 30 && __VERIFIER_nondet_int()=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L526] i < 30 && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, i < 30 && __VERIFIER_nondet_int()=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L526] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, i < 30 && __VERIFIER_nondet_int()=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L534] p->h = i VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L535] p->n = 0 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L536] p = a VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L537] i = 0 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L538] COND TRUE p!=0 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L539] EXPR p->h VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=0] [L539] COND TRUE p->h != 1 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=0] [L540] __VERIFIER_error() VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 115 SDtfs, 38 SDslu, 88 SDs, 0 SdLazy, 134 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 33 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1644 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...