/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:20:04,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:20:04,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:20:04,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 05:20:04,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 05:20:04,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 05:20:04,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 05:20:04,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 05:20:04,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 05:20:04,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 05:20:04,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 05:20:04,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 05:20:04,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:20:04,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:20:04,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:20:04,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:20:04,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:20:04,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:20:04,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:20:04,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:20:04,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:20:04,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:20:04,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:20:04,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:20:04,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 05:20:04,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 05:20:04,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 05:20:04,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 05:20:04,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 05:20:04,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 05:20:04,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 05:20:04,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 05:20:04,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 05:20:04,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 05:20:04,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 05:20:04,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 05:20:04,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 05:20:04,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 05:20:04,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:20:04,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:20:04,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:20:04,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:20:05,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:20:05,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:20:05,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:20:05,027 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:20:05,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:20:05,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:20:05,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:20:05,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:20:05,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:20:05,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:20:05,030 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:20:05,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:20:05,031 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:20:05,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:20:05,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:20:05,031 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:20:05,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:20:05,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:20:05,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:20:05,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:20:05,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:20:05,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:20:05,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:20:05,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:20:05,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:20:05,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:20:05,551 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:20:05,552 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:20:05,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-11-07 05:20:05,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/891a767b4/3233d7be71dc439b8480f71d4903f9ca/FLAGc9d212e29 [2020-11-07 05:20:06,499 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:20:06,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-11-07 05:20:06,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/891a767b4/3233d7be71dc439b8480f71d4903f9ca/FLAGc9d212e29 [2020-11-07 05:20:06,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/891a767b4/3233d7be71dc439b8480f71d4903f9ca [2020-11-07 05:20:06,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:20:06,777 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:20:06,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:20:06,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:20:06,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:20:06,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:20:06" (1/1) ... [2020-11-07 05:20:06,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1830d7b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:20:06, skipping insertion in model container [2020-11-07 05:20:06,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:20:06" (1/1) ... [2020-11-07 05:20:06,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:20:06,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:20:07,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:20:07,273 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:20:07,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:20:07,442 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:20:07,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:20:07 WrapperNode [2020-11-07 05:20:07,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:20:07,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:20:07,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:20:07,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:20:07,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:20:07" (1/1) ... [2020-11-07 05:20:07,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:20:07" (1/1) ... [2020-11-07 05:20:07,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:20:07" (1/1) ... [2020-11-07 05:20:07,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:20:07" (1/1) ... [2020-11-07 05:20:07,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:20:07" (1/1) ... [2020-11-07 05:20:07,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:20:07" (1/1) ... [2020-11-07 05:20:07,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:20:07" (1/1) ... [2020-11-07 05:20:07,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:20:07,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:20:07,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:20:07,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:20:07,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:20:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:20:07,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:20:07,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:20:07,604 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:20:07,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:20:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-07 05:20:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-07 05:20:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-07 05:20:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-07 05:20:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-07 05:20:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-07 05:20:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-07 05:20:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-07 05:20:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-07 05:20:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-07 05:20:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-07 05:20:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-07 05:20:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-07 05:20:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-07 05:20:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-07 05:20:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-07 05:20:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-07 05:20:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-07 05:20:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-07 05:20:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-07 05:20:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-07 05:20:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-07 05:20:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-07 05:20:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-07 05:20:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-07 05:20:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-07 05:20:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-07 05:20:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-07 05:20:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-07 05:20:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-07 05:20:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-07 05:20:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-07 05:20:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-07 05:20:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-07 05:20:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-07 05:20:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-07 05:20:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-07 05:20:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-07 05:20:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-07 05:20:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-07 05:20:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-07 05:20:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-07 05:20:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-07 05:20:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-07 05:20:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-07 05:20:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-07 05:20:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-07 05:20:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-07 05:20:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-07 05:20:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-07 05:20:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 05:20:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 05:20:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-07 05:20:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 05:20:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-07 05:20:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-07 05:20:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-07 05:20:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-07 05:20:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-07 05:20:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:20:07,613 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-07 05:20:07,613 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-07 05:20:07,613 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-07 05:20:07,613 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 05:20:07,613 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-07 05:20:07,613 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-07 05:20:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-07 05:20:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-07 05:20:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-07 05:20:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-07 05:20:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-07 05:20:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-07 05:20:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-07 05:20:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-07 05:20:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-07 05:20:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-07 05:20:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-07 05:20:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-07 05:20:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-07 05:20:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-07 05:20:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-07 05:20:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-07 05:20:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-07 05:20:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-07 05:20:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-07 05:20:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-07 05:20:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-07 05:20:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-07 05:20:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-07 05:20:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-07 05:20:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-07 05:20:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-07 05:20:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-07 05:20:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-07 05:20:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-07 05:20:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-07 05:20:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-07 05:20:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-07 05:20:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-07 05:20:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-07 05:20:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-07 05:20:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-07 05:20:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-07 05:20:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:20:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:20:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 05:20:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 05:20:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:20:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:20:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:20:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 05:20:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 05:20:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:20:07,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 05:20:07,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:20:07,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:20:07,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:20:07,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:20:07,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:20:08,421 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:20:08,422 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-07 05:20:08,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:20:08 BoogieIcfgContainer [2020-11-07 05:20:08,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:20:08,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:20:08,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:20:08,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:20:08,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:20:06" (1/3) ... [2020-11-07 05:20:08,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ead60b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:20:08, skipping insertion in model container [2020-11-07 05:20:08,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:20:07" (2/3) ... [2020-11-07 05:20:08,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ead60b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:20:08, skipping insertion in model container [2020-11-07 05:20:08,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:20:08" (3/3) ... [2020-11-07 05:20:08,437 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2020-11-07 05:20:08,459 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:20:08,465 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:20:08,482 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:20:08,514 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:20:08,515 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:20:08,515 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:20:08,515 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:20:08,515 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:20:08,515 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:20:08,516 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:20:08,516 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:20:08,539 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2020-11-07 05:20:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-07 05:20:08,555 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:20:08,556 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] [2020-11-07 05:20:08,557 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:20:08,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:20:08,565 INFO L82 PathProgramCache]: Analyzing trace with hash 2135477645, now seen corresponding path program 1 times [2020-11-07 05:20:08,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:20:08,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354271479] [2020-11-07 05:20:08,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:20:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:20:08,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:20:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:20:09,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:20:09,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354271479] [2020-11-07 05:20:09,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:20:09,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 05:20:09,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978142881] [2020-11-07 05:20:09,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 05:20:09,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:20:09,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 05:20:09,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 05:20:09,048 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 3 states. [2020-11-07 05:20:09,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:20:09,404 INFO L93 Difference]: Finished difference Result 189 states and 232 transitions. [2020-11-07 05:20:09,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 05:20:09,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-07 05:20:09,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:20:09,418 INFO L225 Difference]: With dead ends: 189 [2020-11-07 05:20:09,418 INFO L226 Difference]: Without dead ends: 81 [2020-11-07 05:20:09,423 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 [2020-11-07 05:20:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-11-07 05:20:09,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-11-07 05:20:09,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-11-07 05:20:09,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2020-11-07 05:20:09,496 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 26 [2020-11-07 05:20:09,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:20:09,497 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2020-11-07 05:20:09,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 05:20:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2020-11-07 05:20:09,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-07 05:20:09,499 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:20:09,499 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] [2020-11-07 05:20:09,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:20:09,500 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:20:09,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:20:09,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1141927283, now seen corresponding path program 1 times [2020-11-07 05:20:09,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:20:09,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745524151] [2020-11-07 05:20:09,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:20:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:20:09,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:20:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:20:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:20:09,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745524151] [2020-11-07 05:20:09,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:20:09,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 05:20:09,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364195196] [2020-11-07 05:20:09,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:20:09,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:20:09,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:20:09,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:20:09,801 INFO L87 Difference]: Start difference. First operand 81 states and 88 transitions. Second operand 10 states. [2020-11-07 05:20:10,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:20:10,344 INFO L93 Difference]: Finished difference Result 159 states and 171 transitions. [2020-11-07 05:20:10,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:20:10,345 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-11-07 05:20:10,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:20:10,348 INFO L225 Difference]: With dead ends: 159 [2020-11-07 05:20:10,348 INFO L226 Difference]: Without dead ends: 155 [2020-11-07 05:20:10,349 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 [2020-11-07 05:20:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-11-07 05:20:10,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 89. [2020-11-07 05:20:10,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-07 05:20:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2020-11-07 05:20:10,386 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 28 [2020-11-07 05:20:10,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:20:10,387 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2020-11-07 05:20:10,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:20:10,387 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2020-11-07 05:20:10,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-07 05:20:10,389 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:20:10,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:20:10,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:20:10,389 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:20:10,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:20:10,390 INFO L82 PathProgramCache]: Analyzing trace with hash 707662645, now seen corresponding path program 1 times [2020-11-07 05:20:10,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:20:10,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298860980] [2020-11-07 05:20:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:20:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:20:10,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:20:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:20:10,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:20:10,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298860980] [2020-11-07 05:20:10,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:20:10,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-07 05:20:10,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474576480] [2020-11-07 05:20:10,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-07 05:20:10,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:20:10,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-07 05:20:10,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:20:10,627 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand 12 states. [2020-11-07 05:20:11,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:20:11,263 INFO L93 Difference]: Finished difference Result 128 states and 140 transitions. [2020-11-07 05:20:11,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 05:20:11,264 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-11-07 05:20:11,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:20:11,267 INFO L225 Difference]: With dead ends: 128 [2020-11-07 05:20:11,267 INFO L226 Difference]: Without dead ends: 124 [2020-11-07 05:20:11,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2020-11-07 05:20:11,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-11-07 05:20:11,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2020-11-07 05:20:11,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-07 05:20:11,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 120 transitions. [2020-11-07 05:20:11,327 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 120 transitions. Word has length 37 [2020-11-07 05:20:11,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:20:11,328 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 120 transitions. [2020-11-07 05:20:11,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-07 05:20:11,328 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 120 transitions. [2020-11-07 05:20:11,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-07 05:20:11,333 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:20:11,333 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, 1, 1, 1, 1, 1] [2020-11-07 05:20:11,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:20:11,334 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:20:11,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:20:11,337 INFO L82 PathProgramCache]: Analyzing trace with hash -339685249, now seen corresponding path program 1 times [2020-11-07 05:20:11,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:20:11,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379444573] [2020-11-07 05:20:11,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:20:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:20:11,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:20:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:20:11,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:20:11,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379444573] [2020-11-07 05:20:11,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:20:11,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 05:20:11,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652192664] [2020-11-07 05:20:11,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 05:20:11,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:20:11,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 05:20:11,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 05:20:11,426 INFO L87 Difference]: Start difference. First operand 109 states and 120 transitions. Second operand 4 states. [2020-11-07 05:20:11,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:20:11,624 INFO L93 Difference]: Finished difference Result 235 states and 260 transitions. [2020-11-07 05:20:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 05:20:11,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-11-07 05:20:11,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:20:11,627 INFO L225 Difference]: With dead ends: 235 [2020-11-07 05:20:11,627 INFO L226 Difference]: Without dead ends: 167 [2020-11-07 05:20:11,628 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 [2020-11-07 05:20:11,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-11-07 05:20:11,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 129. [2020-11-07 05:20:11,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-11-07 05:20:11,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 141 transitions. [2020-11-07 05:20:11,653 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 141 transitions. Word has length 42 [2020-11-07 05:20:11,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:20:11,653 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 141 transitions. [2020-11-07 05:20:11,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 05:20:11,654 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 141 transitions. [2020-11-07 05:20:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-07 05:20:11,655 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:20:11,655 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, 1, 1, 1, 1, 1, 1] [2020-11-07 05:20:11,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 05:20:11,656 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:20:11,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:20:11,656 INFO L82 PathProgramCache]: Analyzing trace with hash -2082681811, now seen corresponding path program 1 times [2020-11-07 05:20:11,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:20:11,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020462523] [2020-11-07 05:20:11,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:20:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:20:12,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:20:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:20:12,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:20:12,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020462523] [2020-11-07 05:20:12,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:20:12,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-07 05:20:12,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719916780] [2020-11-07 05:20:12,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 05:20:12,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:20:12,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 05:20:12,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-11-07 05:20:12,117 INFO L87 Difference]: Start difference. First operand 129 states and 141 transitions. Second operand 14 states. [2020-11-07 05:20:13,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:20:13,340 INFO L93 Difference]: Finished difference Result 219 states and 236 transitions. [2020-11-07 05:20:13,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-07 05:20:13,341 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-11-07 05:20:13,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:20:13,343 INFO L225 Difference]: With dead ends: 219 [2020-11-07 05:20:13,344 INFO L226 Difference]: Without dead ends: 187 [2020-11-07 05:20:13,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-11-07 05:20:13,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-11-07 05:20:13,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 137. [2020-11-07 05:20:13,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-11-07 05:20:13,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 149 transitions. [2020-11-07 05:20:13,396 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 149 transitions. Word has length 43 [2020-11-07 05:20:13,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:20:13,397 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 149 transitions. [2020-11-07 05:20:13,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 05:20:13,397 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 149 transitions. [2020-11-07 05:20:13,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-07 05:20:13,399 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:20:13,399 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, 1, 1, 1, 1, 1] [2020-11-07 05:20:13,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 05:20:13,400 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:20:13,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:20:13,400 INFO L82 PathProgramCache]: Analyzing trace with hash 987395855, now seen corresponding path program 1 times [2020-11-07 05:20:13,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:20:13,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751018019] [2020-11-07 05:20:13,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:20:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:20:13,508 ERROR L253 erpolLogProxyWrapper]: Interpolant 16 not inductive [2020-11-07 05:20:13,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 05:20:13,527 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java: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.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:109) 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:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:343) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:149) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-07 05:20:13,534 INFO L168 Benchmark]: Toolchain (without parser) took 6764.71 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 133.5 MB in the beginning and 159.3 MB in the end (delta: -25.7 MB). Peak memory consumption was 40.6 MB. Max. memory is 8.0 GB. [2020-11-07 05:20:13,535 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 05:20:13,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.16 ms. Allocated memory is still 151.0 MB. Free memory was 132.9 MB in the beginning and 125.4 MB in the end (delta: 7.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-11-07 05:20:13,537 INFO L168 Benchmark]: Boogie Preprocessor took 72.17 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 122.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 05:20:13,538 INFO L168 Benchmark]: RCFGBuilder took 907.15 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 117.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 8.0 GB. [2020-11-07 05:20:13,539 INFO L168 Benchmark]: TraceAbstraction took 5103.86 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 116.9 MB in the beginning and 159.3 MB in the end (delta: -42.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 8.0 GB. [2020-11-07 05:20:13,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 662.16 ms. Allocated memory is still 151.0 MB. Free memory was 132.9 MB in the beginning and 125.4 MB in the end (delta: 7.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 72.17 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 122.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 907.15 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 117.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5103.86 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 116.9 MB in the beginning and 159.3 MB in the end (delta: -42.4 MB). Peak memory consumption was 24.8 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:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...