/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:06:45,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:06:45,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:06:45,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:06:45,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:06:45,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:06:45,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:06:45,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:06:45,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:06:45,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:06:45,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:06:45,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:06:45,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:06:45,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:06:45,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:06:45,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:06:45,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:06:45,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:06:45,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:06:45,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:06:45,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:06:45,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:06:45,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:06:45,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:06:45,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 19:06:45,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 19:06:45,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 19:06:45,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 19:06:45,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 19:06:45,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 19:06:45,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 19:06:45,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 19:06:45,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 19:06:45,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 19:06:45,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 19:06:45,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 19:06:45,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 19:06:45,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 19:06:45,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:06:45,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:06:45,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:06:45,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:06:45,456 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:06:45,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:06:45,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:06:45,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:06:45,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:06:45,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:06:45,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:06:45,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:06:45,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:06:45,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:06:45,461 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:06:45,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:06:45,461 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:06:45,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:06:45,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:06:45,462 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:06:45,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:06:45,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:06:45,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:06:45,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:06:45,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:06:45,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:06:45,463 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:06:45,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:06:45,748 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:06:45,754 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:06:45,756 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:06:45,763 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:06:45,764 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-08-22 19:06:45,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95d05eca9/6e43b1ed11254f8590d8891b217236b5/FLAG4532178cb [2020-08-22 19:06:46,352 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:06:46,353 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-08-22 19:06:46,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95d05eca9/6e43b1ed11254f8590d8891b217236b5/FLAG4532178cb [2020-08-22 19:06:46,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95d05eca9/6e43b1ed11254f8590d8891b217236b5 [2020-08-22 19:06:46,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:06:46,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:06:46,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:06:46,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:06:46,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:06:46,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:06:46" (1/1) ... [2020-08-22 19:06:46,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b9ae86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:46, skipping insertion in model container [2020-08-22 19:06:46,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:06:46" (1/1) ... [2020-08-22 19:06:46,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:06:46,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:06:47,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:06:47,187 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:06:47,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:06:47,294 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:06:47,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:47 WrapperNode [2020-08-22 19:06:47,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:06:47,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:06:47,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:06:47,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:06:47,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:47" (1/1) ... [2020-08-22 19:06:47,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:47" (1/1) ... [2020-08-22 19:06:47,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:47" (1/1) ... [2020-08-22 19:06:47,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:47" (1/1) ... [2020-08-22 19:06:47,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:47" (1/1) ... [2020-08-22 19:06:47,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:47" (1/1) ... [2020-08-22 19:06:47,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:47" (1/1) ... [2020-08-22 19:06:47,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:06:47,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:06:47,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:06:47,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:06:47,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:47" (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 [2020-08-22 19:06:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:06:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:06:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-22 19:06:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-22 19:06:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-08-22 19:06:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-08-22 19:06:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-08-22 19:06:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-08-22 19:06:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:06:47,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:06:47,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:06:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-22 19:06:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-22 19:06:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-22 19:06:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-22 19:06:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-22 19:06:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-22 19:06:47,419 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-22 19:06:47,419 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-22 19:06:47,419 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-22 19:06:47,419 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-22 19:06:47,419 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-22 19:06:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-22 19:06:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-22 19:06:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-22 19:06:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-22 19:06:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-22 19:06:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-22 19:06:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-22 19:06:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-08-22 19:06:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-08-22 19:06:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-08-22 19:06:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-22 19:06:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-22 19:06:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-22 19:06:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-22 19:06:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-22 19:06:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-22 19:06:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-22 19:06:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-22 19:06:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-22 19:06:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-22 19:06:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-22 19:06:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-22 19:06:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-22 19:06:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-22 19:06:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-22 19:06:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-22 19:06:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-22 19:06:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-22 19:06:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-22 19:06:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-22 19:06:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-22 19:06:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-22 19:06:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-22 19:06:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-22 19:06:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-22 19:06:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-22 19:06:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-22 19:06:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-22 19:06:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-22 19:06:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-22 19:06:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-22 19:06:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-22 19:06:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-22 19:06:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-22 19:06:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 19:06:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 19:06:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-22 19:06:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 19:06:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-22 19:06:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-22 19:06:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-22 19:06:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-22 19:06:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 19:06:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-22 19:06:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-22 19:06:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-22 19:06:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 19:06:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-22 19:06:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-22 19:06:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-22 19:06:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-22 19:06:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-22 19:06:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-22 19:06:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-22 19:06:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-22 19:06:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-22 19:06:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-22 19:06:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-22 19:06:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-22 19:06:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-22 19:06:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-22 19:06:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-22 19:06:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-22 19:06:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-22 19:06:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-22 19:06:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-22 19:06:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-22 19:06:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-22 19:06:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-22 19:06:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-22 19:06:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-22 19:06:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-22 19:06:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-22 19:06:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-22 19:06:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-22 19:06:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-22 19:06:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-22 19:06:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-22 19:06:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-22 19:06:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-22 19:06:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-22 19:06:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-22 19:06:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-22 19:06:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-22 19:06:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-22 19:06:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-22 19:06:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-08-22 19:06:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:06:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 19:06:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 19:06:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 19:06:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 19:06:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 19:06:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 19:06:47,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:06:47,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:06:47,787 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-08-22 19:06:47,996 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:06:47,997 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-08-22 19:06:48,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:06:48 BoogieIcfgContainer [2020-08-22 19:06:48,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:06:48,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:06:48,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:06:48,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:06:48,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:06:46" (1/3) ... [2020-08-22 19:06:48,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc62113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:06:48, skipping insertion in model container [2020-08-22 19:06:48,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:47" (2/3) ... [2020-08-22 19:06:48,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc62113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:06:48, skipping insertion in model container [2020-08-22 19:06:48,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:06:48" (3/3) ... [2020-08-22 19:06:48,019 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2020-08-22 19:06:48,031 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:06:48,042 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:06:48,057 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:06:48,084 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:06:48,088 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:06:48,089 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:06:48,089 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:06:48,089 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:06:48,097 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:06:48,097 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:06:48,097 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:06:48,119 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2020-08-22 19:06:48,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-22 19:06:48,136 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:48,138 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] [2020-08-22 19:06:48,138 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:48,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:48,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1527556188, now seen corresponding path program 1 times [2020-08-22 19:06:48,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:48,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330983483] [2020-08-22 19:06:48,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:48,233 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:48,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:48,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:06:48,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330983483] [2020-08-22 19:06:48,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:48,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:06:48,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422650291] [2020-08-22 19:06:48,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:06:48,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:48,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:06:48,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:06:48,401 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 3 states. [2020-08-22 19:06:48,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:48,594 INFO L93 Difference]: Finished difference Result 95 states and 108 transitions. [2020-08-22 19:06:48,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:06:48,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-08-22 19:06:48,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:48,604 INFO L225 Difference]: With dead ends: 95 [2020-08-22 19:06:48,604 INFO L226 Difference]: Without dead ends: 50 [2020-08-22 19:06:48,608 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 [2020-08-22 19:06:48,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-08-22 19:06:48,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-08-22 19:06:48,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-08-22 19:06:48,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2020-08-22 19:06:48,651 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 23 [2020-08-22 19:06:48,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:06:48,651 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2020-08-22 19:06:48,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:06:48,651 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-08-22 19:06:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-22 19:06:48,653 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:48,653 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] [2020-08-22 19:06:48,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:06:48,654 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:48,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:48,654 INFO L82 PathProgramCache]: Analyzing trace with hash 2054563523, now seen corresponding path program 1 times [2020-08-22 19:06:48,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:48,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250617130] [2020-08-22 19:06:48,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:48,659 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:48,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:06:48,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250617130] [2020-08-22 19:06:48,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:48,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 19:06:48,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438735583] [2020-08-22 19:06:48,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 19:06:48,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:48,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 19:06:48,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 19:06:48,755 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand 5 states. [2020-08-22 19:06:48,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:48,921 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2020-08-22 19:06:48,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 19:06:48,922 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-08-22 19:06:48,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:48,924 INFO L225 Difference]: With dead ends: 122 [2020-08-22 19:06:48,924 INFO L226 Difference]: Without dead ends: 85 [2020-08-22 19:06:48,926 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 [2020-08-22 19:06:48,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-08-22 19:06:48,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 52. [2020-08-22 19:06:48,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-08-22 19:06:48,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2020-08-22 19:06:48,937 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 27 [2020-08-22 19:06:48,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:06:48,938 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2020-08-22 19:06:48,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 19:06:48,938 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-08-22 19:06:48,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-08-22 19:06:48,939 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:48,939 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] [2020-08-22 19:06:48,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:06:48,940 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:48,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:48,940 INFO L82 PathProgramCache]: Analyzing trace with hash -2100491616, now seen corresponding path program 1 times [2020-08-22 19:06:48,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:48,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462365545] [2020-08-22 19:06:48,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:48,945 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:06:48,968 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:06:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:06:48,987 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:06:49,015 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 19:06:49,015 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 19:06:49,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:06:49,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:06:49 BoogieIcfgContainer [2020-08-22 19:06:49,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:06:49,033 INFO L168 Benchmark]: Toolchain (without parser) took 2340.17 ms. Allocated memory was 147.3 MB in the beginning and 234.4 MB in the end (delta: 87.0 MB). Free memory was 102.0 MB in the beginning and 159.9 MB in the end (delta: -57.9 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2020-08-22 19:06:49,035 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.3 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-22 19:06:49,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.55 ms. Allocated memory was 147.3 MB in the beginning and 206.0 MB in the end (delta: 58.7 MB). Free memory was 102.0 MB in the beginning and 171.9 MB in the end (delta: -69.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:06:49,037 INFO L168 Benchmark]: Boogie Preprocessor took 63.42 ms. Allocated memory is still 206.0 MB. Free memory was 171.9 MB in the beginning and 168.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-08-22 19:06:49,038 INFO L168 Benchmark]: RCFGBuilder took 648.03 ms. Allocated memory is still 206.0 MB. Free memory was 168.9 MB in the beginning and 122.0 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. [2020-08-22 19:06:49,038 INFO L168 Benchmark]: TraceAbstraction took 1019.99 ms. Allocated memory was 206.0 MB in the beginning and 234.4 MB in the end (delta: 28.3 MB). Free memory was 121.1 MB in the beginning and 159.9 MB in the end (delta: -38.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 19:06:49,043 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.3 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 601.55 ms. Allocated memory was 147.3 MB in the beginning and 206.0 MB in the end (delta: 58.7 MB). Free memory was 102.0 MB in the beginning and 171.9 MB in the end (delta: -69.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.42 ms. Allocated memory is still 206.0 MB. Free memory was 171.9 MB in the beginning and 168.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 648.03 ms. Allocated memory is still 206.0 MB. Free memory was 168.9 MB in the beginning and 122.0 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1019.99 ms. Allocated memory was 206.0 MB in the beginning and 234.4 MB in the end (delta: 28.3 MB). Free memory was 121.1 MB in the beginning and 159.9 MB in the end (delta: -38.8 MB). There was no memory consumed. 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)); [L522] COND FALSE !(a == 0) [L523] List t; [L524] List p = a; [L525] int i = 0; [L526] i < 30 && __VERIFIER_nondet_int() [L526] i < 30 && __VERIFIER_nondet_int() [L526] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L534] p->h = i [L535] p->n = 0 [L536] p = a [L537] i = 0 [L538] COND TRUE p!=0 [L539] EXPR p->h [L539] COND TRUE p->h != 1 [L540] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 115 SDtfs, 40 SDslu, 87 SDs, 0 SdLazy, 134 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 33 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...