/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-36cd7be [2021-02-23 18:09:39,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:09:39,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:09:39,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 18:09:39,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 18:09:39,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 18:09:39,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 18:09:39,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 18:09:39,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 18:09:39,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 18:09:39,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 18:09:39,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 18:09:39,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:09:39,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:09:39,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:09:39,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:09:39,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:09:39,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:09:39,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:09:39,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:09:39,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:09:39,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:09:39,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:09:39,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:09:39,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 18:09:39,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 18:09:39,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 18:09:39,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 18:09:39,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 18:09:39,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 18:09:39,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 18:09:39,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 18:09:39,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 18:09:39,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 18:09:39,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 18:09:39,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 18:09:39,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 18:09:39,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 18:09:39,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:09:39,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:09:39,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:09:39,688 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:09:39,702 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:09:39,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:09:39,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:09:39,704 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:09:39,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:09:39,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:09:39,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:09:39,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:09:39,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:09:39,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:09:39,706 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:09:39,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:09:39,706 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:09:39,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:09:39,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:09:39,707 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:09:39,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:09:39,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:09:39,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:09:39,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:09:39,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:09:39,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:09:39,709 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:09:40,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:09:40,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:09:40,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:09:40,120 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:09:40,121 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:09:40,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-circular-2.i [2021-02-23 18:09:40,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e8e8ae2d/1b74edde7be24974a1d5b257b9f86d26/FLAG00a9a1da8 [2021-02-23 18:09:40,980 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:09:40,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-circular-2.i [2021-02-23 18:09:40,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e8e8ae2d/1b74edde7be24974a1d5b257b9f86d26/FLAG00a9a1da8 [2021-02-23 18:09:41,246 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e8e8ae2d/1b74edde7be24974a1d5b257b9f86d26 [2021-02-23 18:09:41,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:09:41,263 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:09:41,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:09:41,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:09:41,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:09:41,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:09:41" (1/1) ... [2021-02-23 18:09:41,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41443f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:41, skipping insertion in model container [2021-02-23 18:09:41,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:09:41" (1/1) ... [2021-02-23 18:09:41,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:09:41,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:09:41,710 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] [2021-02-23 18:09:41,720 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] [2021-02-23 18:09:41,724 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] [2021-02-23 18:09:41,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:09:41,747 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:09:41,822 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] [2021-02-23 18:09:41,823 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] [2021-02-23 18:09:41,826 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] [2021-02-23 18:09:41,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:09:41,886 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:09:41,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:41 WrapperNode [2021-02-23 18:09:41,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:09:41,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:09:41,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:09:41,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:09:41,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:41" (1/1) ... [2021-02-23 18:09:41,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:41" (1/1) ... [2021-02-23 18:09:41,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:41" (1/1) ... [2021-02-23 18:09:41,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:41" (1/1) ... [2021-02-23 18:09:42,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:41" (1/1) ... [2021-02-23 18:09:42,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:41" (1/1) ... [2021-02-23 18:09:42,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:41" (1/1) ... [2021-02-23 18:09:42,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:09:42,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:09:42,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:09:42,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:09:42,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:41" (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 [2021-02-23 18:09:42,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:09:42,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:09:42,162 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:09:42,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:09:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-23 18:09:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-23 18:09:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-23 18:09:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-23 18:09:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-23 18:09:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-23 18:09:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-23 18:09:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-23 18:09:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-23 18:09:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-23 18:09:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-23 18:09:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-23 18:09:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-23 18:09:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-23 18:09:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-23 18:09:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-23 18:09:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-23 18:09:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-23 18:09:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-23 18:09:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-23 18:09:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-23 18:09:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-23 18:09:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-23 18:09:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-23 18:09:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-23 18:09:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-23 18:09:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-23 18:09:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-23 18:09:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-23 18:09:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-23 18:09:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-23 18:09:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-23 18:09:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-23 18:09:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-23 18:09:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-23 18:09:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-23 18:09:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-23 18:09:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-23 18:09:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-23 18:09:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-23 18:09:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-23 18:09:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-23 18:09:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-23 18:09:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-23 18:09:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-23 18:09:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-23 18:09:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-23 18:09:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-23 18:09:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-23 18:09:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-23 18:09:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 18:09:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-23 18:09:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-23 18:09:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 18:09:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-23 18:09:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-23 18:09:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-23 18:09:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-23 18:09:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-23 18:09:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:09:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-23 18:09:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-23 18:09:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-23 18:09:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 18:09:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-23 18:09:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-23 18:09:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-23 18:09:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-23 18:09:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-23 18:09:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-23 18:09:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-23 18:09:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-23 18:09:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-23 18:09:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-23 18:09:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-23 18:09:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-23 18:09:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-23 18:09:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-23 18:09:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-23 18:09:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-23 18:09:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-23 18:09:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-23 18:09:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-23 18:09:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-23 18:09:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-23 18:09:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-23 18:09:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-23 18:09:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-23 18:09:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-23 18:09:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-23 18:09:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-23 18:09:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-23 18:09:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-23 18:09:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-23 18:09:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-23 18:09:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-23 18:09:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-23 18:09:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-23 18:09:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-23 18:09:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-23 18:09:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-23 18:09:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-23 18:09:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-23 18:09:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:09:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:09:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 18:09:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 18:09:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:09:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:09:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:09:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 18:09:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 18:09:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:09:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 18:09:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:09:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:09:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:09:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:09:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:09:42,879 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:09:42,880 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-02-23 18:09:42,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:09:42 BoogieIcfgContainer [2021-02-23 18:09:42,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:09:42,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:09:42,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:09:42,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:09:42,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:09:41" (1/3) ... [2021-02-23 18:09:42,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fba3dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:09:42, skipping insertion in model container [2021-02-23 18:09:42,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:41" (2/3) ... [2021-02-23 18:09:42,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fba3dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:09:42, skipping insertion in model container [2021-02-23 18:09:42,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:09:42" (3/3) ... [2021-02-23 18:09:42,900 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-circular-2.i [2021-02-23 18:09:42,908 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:09:42,915 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-02-23 18:09:42,940 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-02-23 18:09:42,981 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:09:42,985 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:09:42,986 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:09:42,986 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:09:42,987 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:09:42,991 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:09:42,991 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:09:42,991 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:09:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2021-02-23 18:09:43,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-23 18:09:43,032 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:09:43,033 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] [2021-02-23 18:09:43,033 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:09:43,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:09:43,042 INFO L82 PathProgramCache]: Analyzing trace with hash -907684247, now seen corresponding path program 1 times [2021-02-23 18:09:43,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:09:43,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467743552] [2021-02-23 18:09:43,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:09:43,170 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:09:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:43,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:43,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:43,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:43,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:43,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:09:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:43,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:43,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:43,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:09:43,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467743552] [2021-02-23 18:09:43,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:09:43,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 18:09:43,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483867145] [2021-02-23 18:09:43,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 18:09:43,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:09:43,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 18:09:43,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 18:09:43,433 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 3 states. [2021-02-23 18:09:43,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:09:43,748 INFO L93 Difference]: Finished difference Result 180 states and 216 transitions. [2021-02-23 18:09:43,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 18:09:43,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-02-23 18:09:43,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:09:43,761 INFO L225 Difference]: With dead ends: 180 [2021-02-23 18:09:43,761 INFO L226 Difference]: Without dead ends: 78 [2021-02-23 18:09:43,765 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 [2021-02-23 18:09:43,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-02-23 18:09:43,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-02-23 18:09:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-02-23 18:09:43,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2021-02-23 18:09:43,818 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 24 [2021-02-23 18:09:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:09:43,819 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2021-02-23 18:09:43,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 18:09:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2021-02-23 18:09:43,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-23 18:09:43,821 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:09:43,821 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] [2021-02-23 18:09:43,821 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:09:43,822 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:09:43,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:09:43,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1788525391, now seen corresponding path program 1 times [2021-02-23 18:09:43,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:09:43,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611413492] [2021-02-23 18:09:43,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:09:43,828 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:09:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:43,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:43,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:43,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:43,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:09:43,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:43,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:09:43,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:43,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 18:09:44,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:44,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 18:09:44,015 WARN L141 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size [2021-02-23 18:09:44,017 WARN L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-02-23 18:09:44,072 WARN L141 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size [2021-02-23 18:09:44,073 WARN L147 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size 8 [2021-02-23 18:09:44,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:44,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:09:44,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:44,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:09:44,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:44,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:44,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:09:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:44,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:44,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:09:44,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611413492] [2021-02-23 18:09:44,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:09:44,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 18:09:44,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291475816] [2021-02-23 18:09:44,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 18:09:44,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:09:44,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 18:09:44,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 18:09:44,201 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand 10 states. [2021-02-23 18:09:44,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:09:44,785 INFO L93 Difference]: Finished difference Result 153 states and 161 transitions. [2021-02-23 18:09:44,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 18:09:44,786 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2021-02-23 18:09:44,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:09:44,788 INFO L225 Difference]: With dead ends: 153 [2021-02-23 18:09:44,789 INFO L226 Difference]: Without dead ends: 151 [2021-02-23 18:09:44,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-02-23 18:09:44,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-02-23 18:09:44,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 86. [2021-02-23 18:09:44,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2021-02-23 18:09:44,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2021-02-23 18:09:44,813 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 26 [2021-02-23 18:09:44,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:09:44,813 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2021-02-23 18:09:44,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 18:09:44,813 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2021-02-23 18:09:44,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-23 18:09:44,815 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:09:44,815 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] [2021-02-23 18:09:44,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:09:44,815 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:09:44,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:09:44,816 INFO L82 PathProgramCache]: Analyzing trace with hash -113339385, now seen corresponding path program 1 times [2021-02-23 18:09:44,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:09:44,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986602938] [2021-02-23 18:09:44,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:09:44,822 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:09:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:44,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:44,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:44,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:44,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:09:44,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:44,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:09:44,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:44,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:09:44,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:44,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:09:44,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:44,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:44,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:09:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:44,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:44,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:09:44,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1986602938] [2021-02-23 18:09:44,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:09:44,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 18:09:44,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979291611] [2021-02-23 18:09:44,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 18:09:44,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:09:44,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 18:09:44,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-23 18:09:44,926 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand 7 states. [2021-02-23 18:09:45,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:09:45,264 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2021-02-23 18:09:45,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 18:09:45,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2021-02-23 18:09:45,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:09:45,266 INFO L225 Difference]: With dead ends: 122 [2021-02-23 18:09:45,266 INFO L226 Difference]: Without dead ends: 120 [2021-02-23 18:09:45,267 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 [2021-02-23 18:09:45,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-02-23 18:09:45,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 84. [2021-02-23 18:09:45,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2021-02-23 18:09:45,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2021-02-23 18:09:45,286 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 32 [2021-02-23 18:09:45,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:09:45,286 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2021-02-23 18:09:45,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 18:09:45,287 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2021-02-23 18:09:45,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-23 18:09:45,288 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:09:45,288 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] [2021-02-23 18:09:45,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 18:09:45,289 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:09:45,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:09:45,289 INFO L82 PathProgramCache]: Analyzing trace with hash -189147582, now seen corresponding path program 1 times [2021-02-23 18:09:45,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:09:45,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957136971] [2021-02-23 18:09:45,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:09:45,295 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:09:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:45,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:45,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:45,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:45,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:09:45,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:45,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:45,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:09:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:45,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:45,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:45,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:09:45,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957136971] [2021-02-23 18:09:45,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:09:45,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:09:45,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760695166] [2021-02-23 18:09:45,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:09:45,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:09:45,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:09:45,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:09:45,368 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand 4 states. [2021-02-23 18:09:45,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:09:45,512 INFO L93 Difference]: Finished difference Result 199 states and 214 transitions. [2021-02-23 18:09:45,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 18:09:45,513 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2021-02-23 18:09:45,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:09:45,515 INFO L225 Difference]: With dead ends: 199 [2021-02-23 18:09:45,515 INFO L226 Difference]: Without dead ends: 140 [2021-02-23 18:09:45,516 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 [2021-02-23 18:09:45,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-02-23 18:09:45,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 101. [2021-02-23 18:09:45,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2021-02-23 18:09:45,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2021-02-23 18:09:45,538 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 37 [2021-02-23 18:09:45,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:09:45,538 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2021-02-23 18:09:45,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:09:45,539 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2021-02-23 18:09:45,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-23 18:09:45,540 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:09:45,541 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] [2021-02-23 18:09:45,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 18:09:45,541 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:09:45,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:09:45,542 INFO L82 PathProgramCache]: Analyzing trace with hash 165497749, now seen corresponding path program 1 times [2021-02-23 18:09:45,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:09:45,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520205464] [2021-02-23 18:09:45,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:09:45,592 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:09:45,597 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:09:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:45,639 ERROR L253 erpolLogProxyWrapper]: Interpolant 13 not inductive [2021-02-23 18:09:45,652 ERROR L275 FreeRefinementEngine]: Caught unknown exception: generated interpolants did not pass sanity check [2021-02-23 18:09:45,653 WARN L340 FreeRefinementEngine]: Global settings require throwing the following exception [2021-02-23 18:09:45,653 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 18:09:45,654 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-23 18:09:45,658 INFO L168 Benchmark]: Toolchain (without parser) took 4406.54 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 133.6 MB in the beginning and 79.3 MB in the end (delta: 54.3 MB). Peak memory consumption was 86.5 MB. Max. memory is 8.0 GB. [2021-02-23 18:09:45,658 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 157.3 MB. Free memory is still 131.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:09:45,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.36 ms. Allocated memory is still 157.3 MB. Free memory was 132.3 MB in the beginning and 110.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:09:45,660 INFO L168 Benchmark]: Boogie Preprocessor took 161.97 ms. Allocated memory is still 157.3 MB. Free memory was 110.2 MB in the beginning and 139.0 MB in the end (delta: -28.8 MB). Peak memory consumption was 3.7 MB. Max. memory is 8.0 GB. [2021-02-23 18:09:45,661 INFO L168 Benchmark]: RCFGBuilder took 832.50 ms. Allocated memory is still 157.3 MB. Free memory was 139.0 MB in the beginning and 137.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 51.3 MB. Max. memory is 8.0 GB. [2021-02-23 18:09:45,662 INFO L168 Benchmark]: TraceAbstraction took 2767.12 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 137.0 MB in the beginning and 79.3 MB in the end (delta: 57.7 MB). Peak memory consumption was 89.2 MB. Max. memory is 8.0 GB. [2021-02-23 18:09:45,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 157.3 MB. Free memory is still 131.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 622.36 ms. Allocated memory is still 157.3 MB. Free memory was 132.3 MB in the beginning and 110.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 161.97 ms. Allocated memory is still 157.3 MB. Free memory was 110.2 MB in the beginning and 139.0 MB in the end (delta: -28.8 MB). Peak memory consumption was 3.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 832.50 ms. Allocated memory is still 157.3 MB. Free memory was 139.0 MB in the beginning and 137.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 51.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2767.12 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 137.0 MB in the beginning and 79.3 MB in the end (delta: 57.7 MB). Peak memory consumption was 89.2 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...