/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/sll-circular-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 20:41:50,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 20:41:50,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 20:41:50,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 20:41:50,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 20:41:50,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 20:41:50,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 20:41:50,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 20:41:50,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 20:41:50,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 20:41:50,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 20:41:50,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 20:41:50,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 20:41:50,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 20:41:50,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 20:41:50,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 20:41:50,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 20:41:50,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 20:41:50,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 20:41:50,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 20:41:50,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 20:41:50,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 20:41:50,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 20:41:50,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 20:41:50,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 20:41:50,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 20:41:50,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 20:41:50,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 20:41:50,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 20:41:50,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 20:41:50,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 20:41:50,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 20:41:50,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 20:41:50,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 20:41:50,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 20:41:50,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 20:41:50,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 20:41:50,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 20:41:50,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 20:41:50,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 20:41:50,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 20:41:50,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 20:41:50,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 20:41:50,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 20:41:50,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 20:41:50,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 20:41:50,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 20:41:50,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 20:41:50,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 20:41:50,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 20:41:50,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 20:41:50,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 20:41:50,130 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 20:41:50,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 20:41:50,130 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 20:41:50,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 20:41:50,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 20:41:50,131 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 20:41:50,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 20:41:50,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 20:41:50,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 20:41:50,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 20:41:50,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 20:41:50,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 20:41:50,133 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 20:41:50,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 20:41:50,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 20:41:50,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 20:41:50,599 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 20:41:50,606 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 20:41:50,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-circular-2.i [2021-02-21 20:41:50,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376b9e54e/468e2400d5b04f6ba060b4b3eddc1118/FLAGbff02f054 [2021-02-21 20:41:51,456 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 20:41:51,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-circular-2.i [2021-02-21 20:41:51,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376b9e54e/468e2400d5b04f6ba060b4b3eddc1118/FLAGbff02f054 [2021-02-21 20:41:51,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376b9e54e/468e2400d5b04f6ba060b4b3eddc1118 [2021-02-21 20:41:51,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 20:41:51,781 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 20:41:51,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 20:41:51,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 20:41:51,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 20:41:51,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:41:51" (1/1) ... [2021-02-21 20:41:51,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a13613f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:41:51, skipping insertion in model container [2021-02-21 20:41:51,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:41:51" (1/1) ... [2021-02-21 20:41:51,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 20:41:51,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 20:41:52,245 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-circular-2.i[22324,22337] [2021-02-21 20:41:52,251 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-circular-2.i[22430,22443] [2021-02-21 20:41:52,254 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-circular-2.i[22554,22567] [2021-02-21 20:41:52,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:41:52,268 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 20:41:52,327 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-circular-2.i[22324,22337] [2021-02-21 20:41:52,329 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-circular-2.i[22430,22443] [2021-02-21 20:41:52,331 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-circular-2.i[22554,22567] [2021-02-21 20:41:52,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:41:52,395 INFO L208 MainTranslator]: Completed translation [2021-02-21 20:41:52,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:41:52 WrapperNode [2021-02-21 20:41:52,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 20:41:52,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 20:41:52,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 20:41:52,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 20:41:52,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:41:52" (1/1) ... [2021-02-21 20:41:52,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:41:52" (1/1) ... [2021-02-21 20:41:52,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:41:52" (1/1) ... [2021-02-21 20:41:52,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:41:52" (1/1) ... [2021-02-21 20:41:52,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:41:52" (1/1) ... [2021-02-21 20:41:52,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:41:52" (1/1) ... [2021-02-21 20:41:52,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:41:52" (1/1) ... [2021-02-21 20:41:52,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 20:41:52,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 20:41:52,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 20:41:52,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 20:41:52,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:41:52" (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 [2021-02-21 20:41:52,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 20:41:52,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 20:41:52,653 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 20:41:52,653 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 20:41:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-21 20:41:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-21 20:41:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-21 20:41:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-21 20:41:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-21 20:41:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-21 20:41:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-21 20:41:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-21 20:41:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-21 20:41:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-21 20:41:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-21 20:41:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-21 20:41:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-21 20:41:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-21 20:41:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-21 20:41:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-21 20:41:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-21 20:41:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-21 20:41:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-21 20:41:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-21 20:41:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-21 20:41:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-21 20:41:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-21 20:41:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-21 20:41:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-21 20:41:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-21 20:41:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-21 20:41:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-21 20:41:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-21 20:41:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-21 20:41:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-21 20:41:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-21 20:41:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-21 20:41:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-21 20:41:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-21 20:41:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-21 20:41:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-21 20:41:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-21 20:41:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-21 20:41:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-21 20:41:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-21 20:41:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-21 20:41:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-21 20:41:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-21 20:41:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-21 20:41:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-21 20:41:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-21 20:41:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-21 20:41:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-21 20:41:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-21 20:41:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 20:41:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-21 20:41:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-21 20:41:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 20:41:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-21 20:41:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-21 20:41:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-21 20:41:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-21 20:41:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-21 20:41:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 20:41:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-21 20:41:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-21 20:41:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-21 20:41:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-21 20:41:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-21 20:41:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-21 20:41:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-21 20:41:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-21 20:41:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-21 20:41:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-21 20:41:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-21 20:41:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-21 20:41:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-21 20:41:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-21 20:41:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-21 20:41:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-21 20:41:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-21 20:41:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-21 20:41:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-21 20:41:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-21 20:41:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-21 20:41:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-21 20:41:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-21 20:41:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-21 20:41:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-21 20:41:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-21 20:41:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-21 20:41:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-21 20:41:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-21 20:41:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-21 20:41:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-21 20:41:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-21 20:41:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-21 20:41:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-21 20:41:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-21 20:41:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-21 20:41:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-21 20:41:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-21 20:41:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-21 20:41:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-21 20:41:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-21 20:41:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-21 20:41:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-21 20:41:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 20:41:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 20:41:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-21 20:41:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-21 20:41:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 20:41:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 20:41:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 20:41:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 20:41:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 20:41:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 20:41:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 20:41:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 20:41:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 20:41:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 20:41:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 20:41:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 20:41:53,392 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 20:41:53,393 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-02-21 20:41:53,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:41:53 BoogieIcfgContainer [2021-02-21 20:41:53,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 20:41:53,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 20:41:53,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 20:41:53,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 20:41:53,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 08:41:51" (1/3) ... [2021-02-21 20:41:53,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0591e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:41:53, skipping insertion in model container [2021-02-21 20:41:53,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:41:52" (2/3) ... [2021-02-21 20:41:53,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0591e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:41:53, skipping insertion in model container [2021-02-21 20:41:53,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:41:53" (3/3) ... [2021-02-21 20:41:53,408 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-circular-2.i [2021-02-21 20:41:53,417 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 20:41:53,422 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-02-21 20:41:53,446 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-02-21 20:41:53,486 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 20:41:53,490 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 20:41:53,490 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 20:41:53,491 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 20:41:53,492 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 20:41:53,496 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 20:41:53,496 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 20:41:53,497 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 20:41:53,525 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2021-02-21 20:41:53,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-21 20:41:53,539 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:41:53,540 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] [2021-02-21 20:41:53,540 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:41:53,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:41:53,550 INFO L82 PathProgramCache]: Analyzing trace with hash -907684247, now seen corresponding path program 1 times [2021-02-21 20:41:53,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:41:53,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062331433] [2021-02-21 20:41:53,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:41:53,642 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:41:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:41:53,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:53,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:41:53,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:53,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:41:53,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:41:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:41:53,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:53,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:41:53,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:41:53,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062331433] [2021-02-21 20:41:53,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:41:53,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 20:41:53,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598211296] [2021-02-21 20:41:53,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 20:41:53,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:41:53,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 20:41:53,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 20:41:53,905 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 3 states. [2021-02-21 20:41:54,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:41:54,179 INFO L93 Difference]: Finished difference Result 180 states and 216 transitions. [2021-02-21 20:41:54,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 20:41:54,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-02-21 20:41:54,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:41:54,192 INFO L225 Difference]: With dead ends: 180 [2021-02-21 20:41:54,192 INFO L226 Difference]: Without dead ends: 78 [2021-02-21 20:41:54,197 INFO L677 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 [2021-02-21 20:41:54,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-02-21 20:41:54,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-02-21 20:41:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-02-21 20:41:54,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2021-02-21 20:41:54,246 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 24 [2021-02-21 20:41:54,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:41:54,247 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2021-02-21 20:41:54,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 20:41:54,247 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2021-02-21 20:41:54,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-21 20:41:54,248 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:41:54,249 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] [2021-02-21 20:41:54,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 20:41:54,249 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:41:54,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:41:54,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1788525391, now seen corresponding path program 1 times [2021-02-21 20:41:54,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:41:54,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357452122] [2021-02-21 20:41:54,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:41:54,257 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:41:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:41:54,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:54,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:41:54,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:54,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:41:54,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:54,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:41:54,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:54,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 20:41:54,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:54,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 20:41:54,461 WARN L141 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size [2021-02-21 20:41:54,463 WARN L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-02-21 20:41:54,499 WARN L141 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size [2021-02-21 20:41:54,500 WARN L147 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size 8 [2021-02-21 20:41:54,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:54,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:41:54,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:54,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:41:54,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:54,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:41:54,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:41:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:41:54,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:54,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:41:54,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:41:54,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357452122] [2021-02-21 20:41:54,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:41:54,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 20:41:54,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26895991] [2021-02-21 20:41:54,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 20:41:54,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:41:54,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 20:41:54,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-21 20:41:54,590 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand 10 states. [2021-02-21 20:41:55,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:41:55,110 INFO L93 Difference]: Finished difference Result 153 states and 161 transitions. [2021-02-21 20:41:55,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-21 20:41:55,110 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2021-02-21 20:41:55,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:41:55,113 INFO L225 Difference]: With dead ends: 153 [2021-02-21 20:41:55,113 INFO L226 Difference]: Without dead ends: 151 [2021-02-21 20:41:55,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-02-21 20:41:55,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-02-21 20:41:55,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 86. [2021-02-21 20:41:55,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2021-02-21 20:41:55,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2021-02-21 20:41:55,136 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 26 [2021-02-21 20:41:55,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:41:55,137 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2021-02-21 20:41:55,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 20:41:55,137 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2021-02-21 20:41:55,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-21 20:41:55,139 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:41:55,139 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] [2021-02-21 20:41:55,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 20:41:55,140 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:41:55,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:41:55,140 INFO L82 PathProgramCache]: Analyzing trace with hash -113339385, now seen corresponding path program 1 times [2021-02-21 20:41:55,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:41:55,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691816940] [2021-02-21 20:41:55,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:41:55,146 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:41:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:41:55,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:55,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:41:55,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:55,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:41:55,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:55,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:41:55,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:55,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:41:55,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:55,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:41:55,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:55,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:41:55,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:41:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:41:55,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:55,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:41:55,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:41:55,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691816940] [2021-02-21 20:41:55,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:41:55,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 20:41:55,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532525940] [2021-02-21 20:41:55,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 20:41:55,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:41:55,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 20:41:55,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-21 20:41:55,290 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand 7 states. [2021-02-21 20:41:55,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:41:55,611 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2021-02-21 20:41:55,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-21 20:41:55,612 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2021-02-21 20:41:55,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:41:55,614 INFO L225 Difference]: With dead ends: 122 [2021-02-21 20:41:55,614 INFO L226 Difference]: Without dead ends: 120 [2021-02-21 20:41:55,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-02-21 20:41:55,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-02-21 20:41:55,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 84. [2021-02-21 20:41:55,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2021-02-21 20:41:55,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2021-02-21 20:41:55,636 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 32 [2021-02-21 20:41:55,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:41:55,636 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2021-02-21 20:41:55,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 20:41:55,650 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2021-02-21 20:41:55,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-21 20:41:55,652 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:41:55,652 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] [2021-02-21 20:41:55,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 20:41:55,652 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:41:55,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:41:55,653 INFO L82 PathProgramCache]: Analyzing trace with hash -189147582, now seen corresponding path program 1 times [2021-02-21 20:41:55,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:41:55,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154208696] [2021-02-21 20:41:55,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:41:55,659 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:41:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:41:55,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:55,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:41:55,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:55,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:41:55,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:55,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:41:55,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:41:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:41:55,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:41:55,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:41:55,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:41:55,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154208696] [2021-02-21 20:41:55,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:41:55,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 20:41:55,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643812956] [2021-02-21 20:41:55,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 20:41:55,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:41:55,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 20:41:55,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 20:41:55,743 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand 4 states. [2021-02-21 20:41:55,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:41:55,901 INFO L93 Difference]: Finished difference Result 199 states and 214 transitions. [2021-02-21 20:41:55,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 20:41:55,902 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2021-02-21 20:41:55,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:41:55,903 INFO L225 Difference]: With dead ends: 199 [2021-02-21 20:41:55,904 INFO L226 Difference]: Without dead ends: 140 [2021-02-21 20:41:55,905 INFO L677 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 [2021-02-21 20:41:55,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-02-21 20:41:55,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 101. [2021-02-21 20:41:55,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2021-02-21 20:41:55,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2021-02-21 20:41:55,926 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 37 [2021-02-21 20:41:55,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:41:55,927 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2021-02-21 20:41:55,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 20:41:55,927 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2021-02-21 20:41:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-21 20:41:55,929 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:41:55,929 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, 1] [2021-02-21 20:41:55,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 20:41:55,929 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:41:55,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:41:55,930 INFO L82 PathProgramCache]: Analyzing trace with hash 165497749, now seen corresponding path program 1 times [2021-02-21 20:41:55,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:41:55,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542068232] [2021-02-21 20:41:55,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:41:55,980 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 20:41:55,984 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:41:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:41:56,030 ERROR L253 erpolLogProxyWrapper]: Interpolant 13 not inductive [2021-02-21 20:41:56,044 ERROR L275 FreeRefinementEngine]: Caught unknown exception: generated interpolants did not pass sanity check [2021-02-21 20:41:56,045 WARN L340 FreeRefinementEngine]: Global settings require throwing the following exception [2021-02-21 20:41:56,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 20:41:56,046 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:228) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:876) 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:154) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:108) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:219) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-21 20:41:56,050 INFO L168 Benchmark]: Toolchain (without parser) took 4279.96 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 126.2 MB in the beginning and 106.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. [2021-02-21 20:41:56,050 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 151.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 20:41:56,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.16 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 102.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-21 20:41:56,052 INFO L168 Benchmark]: Boogie Preprocessor took 68.92 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 100.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-21 20:41:56,052 INFO L168 Benchmark]: RCFGBuilder took 929.25 ms. Allocated memory is still 151.0 MB. Free memory was 100.2 MB in the beginning and 87.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-21 20:41:56,053 INFO L168 Benchmark]: TraceAbstraction took 2649.56 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 87.0 MB in the beginning and 106.4 MB in the end (delta: -19.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-21 20:41:56,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 151.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 607.16 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 102.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 68.92 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 100.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 929.25 ms. Allocated memory is still 151.0 MB. Free memory was 100.2 MB in the beginning and 87.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2649.56 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 87.0 MB in the beginning and 106.4 MB in the end (delta: -19.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 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:228) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...