/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/forester-heap/dll-circular-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:41:29,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:41:29,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:41:29,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:41:29,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:41:29,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:41:29,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:41:29,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:41:29,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:41:29,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:41:29,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:41:29,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:41:29,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:41:29,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:41:29,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:41:29,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:41:29,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:41:29,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:41:29,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:41:29,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:41:29,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:41:29,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:41:29,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:41:29,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:41:29,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 16:41:29,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 16:41:29,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 16:41:29,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 16:41:29,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 16:41:29,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 16:41:29,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 16:41:29,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 16:41:29,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 16:41:29,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 16:41:29,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 16:41:29,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 16:41:29,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 16:41:29,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 16:41:29,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:41:29,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:41:29,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:41:29,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:41:29,508 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:41:29,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:41:29,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:41:29,510 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:41:29,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:41:29,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:41:29,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:41:29,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:41:29,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:41:29,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:41:29,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:41:29,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:41:29,513 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:41:29,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:41:29,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:41:29,514 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:41:29,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:41:29,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:41:29,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:41:29,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:41:29,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:41:29,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:41:29,515 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:41:29,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:41:29,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:41:29,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:41:29,947 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:41:29,947 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:41:29,948 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-09-04 16:41:30,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ffc2bc6f/da2e5ea1f8474dbca4af0e226ddafb4d/FLAGbea39fef6 [2020-09-04 16:41:30,650 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:41:30,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-09-04 16:41:30,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ffc2bc6f/da2e5ea1f8474dbca4af0e226ddafb4d/FLAGbea39fef6 [2020-09-04 16:41:30,941 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ffc2bc6f/da2e5ea1f8474dbca4af0e226ddafb4d [2020-09-04 16:41:30,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:41:30,961 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:41:30,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:41:30,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:41:30,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:41:30,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:41:30" (1/1) ... [2020-09-04 16:41:30,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@766fc771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:30, skipping insertion in model container [2020-09-04 16:41:30,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:41:30" (1/1) ... [2020-09-04 16:41:30,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:41:31,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:41:31,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:41:31,521 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:41:31,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:41:31,621 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:41:31,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:31 WrapperNode [2020-09-04 16:41:31,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:41:31,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:41:31,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:41:31,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:41:31,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:31" (1/1) ... [2020-09-04 16:41:31,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:31" (1/1) ... [2020-09-04 16:41:31,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:31" (1/1) ... [2020-09-04 16:41:31,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:31" (1/1) ... [2020-09-04 16:41:31,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:31" (1/1) ... [2020-09-04 16:41:31,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:31" (1/1) ... [2020-09-04 16:41:31,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:31" (1/1) ... [2020-09-04 16:41:31,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:41:31,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:41:31,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:41:31,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:41:31,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 16:41:31,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:41:31,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:41:31,772 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:41:31,772 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-04 16:41:31,772 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-04 16:41:31,772 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-04 16:41:31,772 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-04 16:41:31,773 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-04 16:41:31,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-04 16:41:31,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-04 16:41:31,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-04 16:41:31,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-04 16:41:31,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-04 16:41:31,774 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-04 16:41:31,774 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-04 16:41:31,774 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-04 16:41:31,774 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-04 16:41:31,774 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-04 16:41:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-04 16:41:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-04 16:41:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-04 16:41:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-04 16:41:31,776 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-04 16:41:31,776 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-04 16:41:31,776 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-04 16:41:31,776 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-04 16:41:31,776 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-04 16:41:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-04 16:41:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-04 16:41:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-04 16:41:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-04 16:41:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-04 16:41:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-04 16:41:31,777 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-04 16:41:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-04 16:41:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-04 16:41:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-04 16:41:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-04 16:41:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-04 16:41:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-04 16:41:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-04 16:41:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-04 16:41:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-04 16:41:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-04 16:41:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-04 16:41:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-04 16:41:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-04 16:41:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-04 16:41:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-04 16:41:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-04 16:41:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-04 16:41:31,780 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-04 16:41:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-04 16:41:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 16:41:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-04 16:41:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-04 16:41:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 16:41:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-04 16:41:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-04 16:41:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-04 16:41:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-04 16:41:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-04 16:41:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 16:41:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-04 16:41:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-04 16:41:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-04 16:41:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 16:41:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-04 16:41:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-04 16:41:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-04 16:41:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-04 16:41:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-04 16:41:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-04 16:41:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-04 16:41:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-04 16:41:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-04 16:41:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-04 16:41:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-04 16:41:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-04 16:41:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-04 16:41:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-04 16:41:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-04 16:41:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-04 16:41:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-04 16:41:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-04 16:41:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-04 16:41:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-04 16:41:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-04 16:41:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-04 16:41:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-04 16:41:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-04 16:41:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-04 16:41:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-04 16:41:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-04 16:41:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-04 16:41:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-04 16:41:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-04 16:41:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-04 16:41:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-04 16:41:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-04 16:41:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-04 16:41:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-04 16:41:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-04 16:41:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-04 16:41:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-04 16:41:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-04 16:41:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 16:41:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:41:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:41:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 16:41:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 16:41:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:41:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 16:41:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:41:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:41:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:41:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:41:32,355 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:41:32,356 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-09-04 16:41:32,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:41:32 BoogieIcfgContainer [2020-09-04 16:41:32,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:41:32,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:41:32,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:41:32,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:41:32,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:41:30" (1/3) ... [2020-09-04 16:41:32,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4683e7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:41:32, skipping insertion in model container [2020-09-04 16:41:32,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:31" (2/3) ... [2020-09-04 16:41:32,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4683e7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:41:32, skipping insertion in model container [2020-09-04 16:41:32,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:41:32" (3/3) ... [2020-09-04 16:41:32,372 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2020-09-04 16:41:32,384 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:41:32,396 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-04 16:41:32,419 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-04 16:41:32,450 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:41:32,450 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:41:32,450 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:41:32,450 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:41:32,450 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:41:32,451 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:41:32,451 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:41:32,451 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:41:32,471 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-09-04 16:41:32,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-04 16:41:32,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:41:32,486 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] [2020-09-04 16:41:32,487 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:41:32,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:41:32,495 INFO L82 PathProgramCache]: Analyzing trace with hash -740897811, now seen corresponding path program 1 times [2020-09-04 16:41:32,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:41:32,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524387372] [2020-09-04 16:41:32,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:41:32,608 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:41:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:32,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:41:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:41:32,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524387372] [2020-09-04 16:41:32,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:41:32,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:41:32,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346609038] [2020-09-04 16:41:32,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:41:32,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:41:32,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:41:32,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:41:32,824 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2020-09-04 16:41:33,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:41:33,075 INFO L93 Difference]: Finished difference Result 179 states and 215 transitions. [2020-09-04 16:41:33,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:41:33,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-09-04 16:41:33,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:41:33,092 INFO L225 Difference]: With dead ends: 179 [2020-09-04 16:41:33,092 INFO L226 Difference]: Without dead ends: 77 [2020-09-04 16:41:33,097 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 [2020-09-04 16:41:33,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-04 16:41:33,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-09-04 16:41:33,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-09-04 16:41:33,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-09-04 16:41:33,154 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 20 [2020-09-04 16:41:33,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:41:33,154 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-09-04 16:41:33,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:41:33,155 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-09-04 16:41:33,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-04 16:41:33,156 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:41:33,156 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] [2020-09-04 16:41:33,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:41:33,157 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:41:33,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:41:33,157 INFO L82 PathProgramCache]: Analyzing trace with hash -2066269805, now seen corresponding path program 1 times [2020-09-04 16:41:33,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:41:33,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825184813] [2020-09-04 16:41:33,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:41:33,162 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:41:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:33,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:41:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:33,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:41:33,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825184813] [2020-09-04 16:41:33,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:41:33,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 16:41:33,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942043329] [2020-09-04 16:41:33,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 16:41:33,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:41:33,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 16:41:33,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 16:41:33,419 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 10 states. [2020-09-04 16:41:33,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:41:33,899 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2020-09-04 16:41:33,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 16:41:33,899 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-09-04 16:41:33,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:41:33,904 INFO L225 Difference]: With dead ends: 155 [2020-09-04 16:41:33,905 INFO L226 Difference]: Without dead ends: 153 [2020-09-04 16:41:33,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-09-04 16:41:33,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-09-04 16:41:33,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 85. [2020-09-04 16:41:33,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-04 16:41:33,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2020-09-04 16:41:33,952 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 22 [2020-09-04 16:41:33,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:41:33,953 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2020-09-04 16:41:33,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 16:41:33,953 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2020-09-04 16:41:33,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-04 16:41:33,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:41:33,957 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, 1, 1] [2020-09-04 16:41:33,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:41:33,958 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:41:33,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:41:33,958 INFO L82 PathProgramCache]: Analyzing trace with hash 807179936, now seen corresponding path program 1 times [2020-09-04 16:41:33,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:41:33,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858858307] [2020-09-04 16:41:33,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:41:33,969 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:41:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:34,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:41:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:34,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:41:34,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858858307] [2020-09-04 16:41:34,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:41:34,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-04 16:41:34,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940991612] [2020-09-04 16:41:34,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-04 16:41:34,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:41:34,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-04 16:41:34,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-04 16:41:34,283 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 12 states. [2020-09-04 16:41:34,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:41:34,830 INFO L93 Difference]: Finished difference Result 122 states and 132 transitions. [2020-09-04 16:41:34,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 16:41:34,831 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2020-09-04 16:41:34,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:41:34,833 INFO L225 Difference]: With dead ends: 122 [2020-09-04 16:41:34,833 INFO L226 Difference]: Without dead ends: 120 [2020-09-04 16:41:34,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2020-09-04 16:41:34,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-09-04 16:41:34,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 105. [2020-09-04 16:41:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-04 16:41:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2020-09-04 16:41:34,858 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 31 [2020-09-04 16:41:34,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:41:34,858 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2020-09-04 16:41:34,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-04 16:41:34,859 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2020-09-04 16:41:34,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-04 16:41:34,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:41:34,861 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, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:41:34,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:41:34,861 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:41:34,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:41:34,862 INFO L82 PathProgramCache]: Analyzing trace with hash -988969633, now seen corresponding path program 1 times [2020-09-04 16:41:34,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:41:34,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247739890] [2020-09-04 16:41:34,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:41:34,866 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:41:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:34,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:41:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:34,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:41:34,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247739890] [2020-09-04 16:41:34,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:41:34,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:41:34,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147025075] [2020-09-04 16:41:34,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:41:34,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:41:34,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:41:34,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:41:34,938 INFO L87 Difference]: Start difference. First operand 105 states and 114 transitions. Second operand 4 states. [2020-09-04 16:41:35,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:41:35,097 INFO L93 Difference]: Finished difference Result 234 states and 252 transitions. [2020-09-04 16:41:35,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 16:41:35,098 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-09-04 16:41:35,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:41:35,099 INFO L225 Difference]: With dead ends: 234 [2020-09-04 16:41:35,100 INFO L226 Difference]: Without dead ends: 166 [2020-09-04 16:41:35,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:41:35,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-04 16:41:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 125. [2020-09-04 16:41:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-04 16:41:35,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 135 transitions. [2020-09-04 16:41:35,128 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 135 transitions. Word has length 36 [2020-09-04 16:41:35,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:41:35,128 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 135 transitions. [2020-09-04 16:41:35,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:41:35,128 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 135 transitions. [2020-09-04 16:41:35,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-04 16:41:35,130 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:41:35,130 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:41:35,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:41:35,131 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:41:35,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:41:35,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1230029085, now seen corresponding path program 1 times [2020-09-04 16:41:35,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:41:35,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220296561] [2020-09-04 16:41:35,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:41:35,135 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:41:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:35,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:41:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:35,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:41:35,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220296561] [2020-09-04 16:41:35,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:41:35,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 16:41:35,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612500957] [2020-09-04 16:41:35,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 16:41:35,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:41:35,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 16:41:35,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-09-04 16:41:35,499 INFO L87 Difference]: Start difference. First operand 125 states and 135 transitions. Second operand 14 states. [2020-09-04 16:41:36,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:41:36,237 INFO L93 Difference]: Finished difference Result 215 states and 228 transitions. [2020-09-04 16:41:36,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-04 16:41:36,239 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2020-09-04 16:41:36,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:41:36,240 INFO L225 Difference]: With dead ends: 215 [2020-09-04 16:41:36,241 INFO L226 Difference]: Without dead ends: 185 [2020-09-04 16:41:36,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=173, Invalid=583, Unknown=0, NotChecked=0, Total=756 [2020-09-04 16:41:36,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-04 16:41:36,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 133. [2020-09-04 16:41:36,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-09-04 16:41:36,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 143 transitions. [2020-09-04 16:41:36,281 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 143 transitions. Word has length 37 [2020-09-04 16:41:36,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:41:36,283 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 143 transitions. [2020-09-04 16:41:36,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 16:41:36,283 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 143 transitions. [2020-09-04 16:41:36,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-04 16:41:36,287 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:41:36,287 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:41:36,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 16:41:36,288 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:41:36,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:41:36,288 INFO L82 PathProgramCache]: Analyzing trace with hash 626563183, now seen corresponding path program 1 times [2020-09-04 16:41:36,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:41:36,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907511591] [2020-09-04 16:41:36,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:41:36,370 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:41:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:36,448 ERROR L253 erpolLogProxyWrapper]: Interpolant 16 not inductive [2020-09-04 16:41:36,465 ERROR L276 FreeRefinementEngine]: Caught unknown exception: generated interpolants did not pass sanity check [2020-09-04 16:41:36,465 WARN L341 FreeRefinementEngine]: Global settings require throwing the following exception [2020-09-04 16:41:36,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 16:41:36,466 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:874) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:100) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:284) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-09-04 16:41:36,475 INFO L168 Benchmark]: Toolchain (without parser) took 5512.22 ms. Allocated memory was 139.5 MB in the beginning and 293.6 MB in the end (delta: 154.1 MB). Free memory was 102.9 MB in the beginning and 215.4 MB in the end (delta: -112.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. [2020-09-04 16:41:36,477 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:41:36,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.60 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.6 MB in the beginning and 170.7 MB in the end (delta: -68.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-09-04 16:41:36,485 INFO L168 Benchmark]: Boogie Preprocessor took 73.46 ms. Allocated memory is still 203.4 MB. Free memory was 170.7 MB in the beginning and 167.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-04 16:41:36,486 INFO L168 Benchmark]: RCFGBuilder took 664.89 ms. Allocated memory is still 203.4 MB. Free memory was 167.7 MB in the beginning and 117.9 MB in the end (delta: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:41:36,488 INFO L168 Benchmark]: TraceAbstraction took 4107.00 ms. Allocated memory was 203.4 MB in the beginning and 293.6 MB in the end (delta: 90.2 MB). Free memory was 117.3 MB in the beginning and 215.4 MB in the end (delta: -98.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:41:36,500 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 659.60 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.6 MB in the beginning and 170.7 MB in the end (delta: -68.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.46 ms. Allocated memory is still 203.4 MB. Free memory was 170.7 MB in the beginning and 167.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 664.89 ms. Allocated memory is still 203.4 MB. Free memory was 167.7 MB in the beginning and 117.9 MB in the end (delta: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4107.00 ms. Allocated memory was 203.4 MB in the beginning and 293.6 MB in the end (delta: 90.2 MB). Free memory was 117.3 MB in the beginning and 215.4 MB in the end (delta: -98.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...