/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-circular-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:06:35,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:06:35,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:06:35,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:06:35,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:06:35,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:06:35,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:06:35,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:06:35,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:06:35,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:06:35,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:06:35,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:06:35,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:06:35,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:06:35,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:06:35,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:06:35,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:06:35,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:06:35,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:06:35,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:06:35,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:06:35,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:06:35,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:06:35,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:06:35,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 19:06:35,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 19:06:35,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 19:06:35,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 19:06:35,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 19:06:35,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 19:06:35,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 19:06:35,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 19:06:35,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 19:06:35,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 19:06:35,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 19:06:35,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 19:06:35,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 19:06:35,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 19:06:35,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:06:35,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:06:35,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:06:35,310 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:06:35,319 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:06:35,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:06:35,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:06:35,320 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:06:35,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:06:35,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:06:35,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:06:35,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:06:35,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:06:35,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:06:35,322 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:06:35,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:06:35,322 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:06:35,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:06:35,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:06:35,323 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:06:35,323 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:06:35,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:06:35,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:06:35,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:06:35,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:06:35,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:06:35,324 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:06:35,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:06:35,602 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:06:35,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:06:35,609 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:06:35,609 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:06:35,610 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-circular-2.i [2020-08-22 19:06:35,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71a188deb/269dd49059da4a6a81d908db8c650065/FLAG5e0247eda [2020-08-22 19:06:36,246 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:06:36,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-circular-2.i [2020-08-22 19:06:36,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71a188deb/269dd49059da4a6a81d908db8c650065/FLAG5e0247eda [2020-08-22 19:06:36,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71a188deb/269dd49059da4a6a81d908db8c650065 [2020-08-22 19:06:36,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:06:36,553 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:06:36,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:06:36,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:06:36,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:06:36,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:06:36" (1/1) ... [2020-08-22 19:06:36,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e6b614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:36, skipping insertion in model container [2020-08-22 19:06:36,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:06:36" (1/1) ... [2020-08-22 19:06:36,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:06:36,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:06:37,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:06:37,035 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:06:37,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:06:37,142 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:06:37,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:37 WrapperNode [2020-08-22 19:06:37,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:06:37,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:06:37,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:06:37,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:06:37,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:37" (1/1) ... [2020-08-22 19:06:37,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:37" (1/1) ... [2020-08-22 19:06:37,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:37" (1/1) ... [2020-08-22 19:06:37,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:37" (1/1) ... [2020-08-22 19:06:37,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:37" (1/1) ... [2020-08-22 19:06:37,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:37" (1/1) ... [2020-08-22 19:06:37,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:37" (1/1) ... [2020-08-22 19:06:37,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:06:37,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:06:37,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:06:37,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:06:37,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:06:37,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:06:37,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:06:37,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:06:37,277 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-22 19:06:37,277 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-22 19:06:37,277 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-22 19:06:37,277 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-22 19:06:37,277 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-22 19:06:37,278 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-22 19:06:37,278 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-22 19:06:37,278 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-22 19:06:37,278 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-22 19:06:37,278 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-22 19:06:37,278 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-22 19:06:37,278 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-22 19:06:37,279 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-22 19:06:37,279 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-22 19:06:37,279 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-22 19:06:37,279 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-22 19:06:37,279 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-22 19:06:37,279 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-22 19:06:37,280 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-22 19:06:37,280 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-22 19:06:37,280 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-22 19:06:37,280 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-22 19:06:37,280 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-22 19:06:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-22 19:06:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-22 19:06:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-22 19:06:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-22 19:06:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-22 19:06:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-22 19:06:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-22 19:06:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-22 19:06:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-22 19:06:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-22 19:06:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-22 19:06:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-22 19:06:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-22 19:06:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-22 19:06:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-22 19:06:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-22 19:06:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-22 19:06:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-22 19:06:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-22 19:06:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-22 19:06:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-22 19:06:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-22 19:06:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-22 19:06:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-22 19:06:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-22 19:06:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-22 19:06:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-22 19:06:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 19:06:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 19:06:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-22 19:06:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 19:06:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-22 19:06:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-22 19:06:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-22 19:06:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-22 19:06:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-22 19:06:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 19:06:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-22 19:06:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-22 19:06:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-22 19:06:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 19:06:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-22 19:06:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-22 19:06:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-22 19:06:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-22 19:06:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-22 19:06:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-22 19:06:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-22 19:06:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-22 19:06:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-22 19:06:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-22 19:06:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-22 19:06:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-22 19:06:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-22 19:06:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-22 19:06:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-22 19:06:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-22 19:06:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-22 19:06:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-22 19:06:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-22 19:06:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-22 19:06:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-22 19:06:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-22 19:06:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-22 19:06:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-22 19:06:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-22 19:06:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-22 19:06:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-22 19:06:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-22 19:06:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-22 19:06:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-22 19:06:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-22 19:06:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-22 19:06:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-22 19:06:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-22 19:06:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-22 19:06:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-22 19:06:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-22 19:06:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-22 19:06:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-22 19:06:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:06:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:06:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:06:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 19:06:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 19:06:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 19:06:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 19:06:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 19:06:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 19:06:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:06:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:06:37,840 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:06:37,840 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-08-22 19:06:37,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:06:37 BoogieIcfgContainer [2020-08-22 19:06:37,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:06:37,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:06:37,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:06:37,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:06:37,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:06:36" (1/3) ... [2020-08-22 19:06:37,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c473441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:06:37, skipping insertion in model container [2020-08-22 19:06:37,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:37" (2/3) ... [2020-08-22 19:06:37,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c473441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:06:37, skipping insertion in model container [2020-08-22 19:06:37,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:06:37" (3/3) ... [2020-08-22 19:06:37,853 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-circular-2.i [2020-08-22 19:06:37,863 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:06:37,871 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-08-22 19:06:37,882 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-08-22 19:06:37,899 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:06:37,899 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:06:37,900 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:06:37,900 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:06:37,900 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:06:37,900 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:06:37,901 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:06:37,901 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:06:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2020-08-22 19:06:37,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-22 19:06:37,927 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:37,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:06:37,929 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:37,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:37,935 INFO L82 PathProgramCache]: Analyzing trace with hash -976698803, now seen corresponding path program 1 times [2020-08-22 19:06:37,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:37,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315899588] [2020-08-22 19:06:37,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:38,012 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:38,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:38,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:06:38,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315899588] [2020-08-22 19:06:38,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:38,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:06:38,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965329564] [2020-08-22 19:06:38,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:06:38,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:38,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:06:38,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:06:38,180 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 3 states. [2020-08-22 19:06:38,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:38,407 INFO L93 Difference]: Finished difference Result 173 states and 209 transitions. [2020-08-22 19:06:38,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:06:38,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-08-22 19:06:38,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:38,420 INFO L225 Difference]: With dead ends: 173 [2020-08-22 19:06:38,420 INFO L226 Difference]: Without dead ends: 74 [2020-08-22 19:06:38,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:06:38,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-22 19:06:38,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-08-22 19:06:38,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-08-22 19:06:38,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2020-08-22 19:06:38,472 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 20 [2020-08-22 19:06:38,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:06:38,472 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2020-08-22 19:06:38,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:06:38,473 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2020-08-22 19:06:38,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-22 19:06:38,474 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:38,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:06:38,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:06:38,475 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:38,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:38,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1430822134, now seen corresponding path program 1 times [2020-08-22 19:06:38,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:38,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526638190] [2020-08-22 19:06:38,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:38,480 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:38,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:06:38,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526638190] [2020-08-22 19:06:38,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:38,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 19:06:38,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907440920] [2020-08-22 19:06:38,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 19:06:38,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:38,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 19:06:38,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:06:38,751 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 10 states. [2020-08-22 19:06:39,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:39,181 INFO L93 Difference]: Finished difference Result 149 states and 157 transitions. [2020-08-22 19:06:39,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 19:06:39,181 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-08-22 19:06:39,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:39,184 INFO L225 Difference]: With dead ends: 149 [2020-08-22 19:06:39,184 INFO L226 Difference]: Without dead ends: 147 [2020-08-22 19:06:39,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-08-22 19:06:39,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-08-22 19:06:39,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 82. [2020-08-22 19:06:39,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-08-22 19:06:39,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-08-22 19:06:39,210 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 22 [2020-08-22 19:06:39,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:06:39,210 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-08-22 19:06:39,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 19:06:39,211 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-08-22 19:06:39,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-22 19:06:39,212 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:39,212 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] [2020-08-22 19:06:39,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:06:39,212 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:39,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:39,213 INFO L82 PathProgramCache]: Analyzing trace with hash 340604940, now seen corresponding path program 1 times [2020-08-22 19:06:39,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:39,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648503754] [2020-08-22 19:06:39,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:39,218 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:39,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:39,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:06:39,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648503754] [2020-08-22 19:06:39,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:39,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:06:39,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442602536] [2020-08-22 19:06:39,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:06:39,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:39,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:06:39,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:06:39,346 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 7 states. [2020-08-22 19:06:39,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:39,674 INFO L93 Difference]: Finished difference Result 118 states and 125 transitions. [2020-08-22 19:06:39,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 19:06:39,674 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-08-22 19:06:39,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:39,676 INFO L225 Difference]: With dead ends: 118 [2020-08-22 19:06:39,676 INFO L226 Difference]: Without dead ends: 116 [2020-08-22 19:06:39,677 INFO L675 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 [2020-08-22 19:06:39,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-08-22 19:06:39,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 80. [2020-08-22 19:06:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-08-22 19:06:39,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2020-08-22 19:06:39,695 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 28 [2020-08-22 19:06:39,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:06:39,696 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2020-08-22 19:06:39,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:06:39,696 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2020-08-22 19:06:39,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-08-22 19:06:39,697 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:39,698 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] [2020-08-22 19:06:39,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:06:39,698 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:39,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:39,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1933129776, now seen corresponding path program 1 times [2020-08-22 19:06:39,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:39,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291020403] [2020-08-22 19:06:39,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:39,703 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:39,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:39,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:06:39,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291020403] [2020-08-22 19:06:39,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:39,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 19:06:39,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469341240] [2020-08-22 19:06:39,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 19:06:39,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:39,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 19:06:39,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:06:39,754 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand 4 states. [2020-08-22 19:06:39,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:39,880 INFO L93 Difference]: Finished difference Result 195 states and 210 transitions. [2020-08-22 19:06:39,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 19:06:39,881 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-08-22 19:06:39,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:39,882 INFO L225 Difference]: With dead ends: 195 [2020-08-22 19:06:39,883 INFO L226 Difference]: Without dead ends: 136 [2020-08-22 19:06:39,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:06:39,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-08-22 19:06:39,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 97. [2020-08-22 19:06:39,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-08-22 19:06:39,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-08-22 19:06:39,905 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 33 [2020-08-22 19:06:39,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:06:39,905 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-08-22 19:06:39,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 19:06:39,905 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-08-22 19:06:39,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-08-22 19:06:39,907 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:39,907 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] [2020-08-22 19:06:39,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:06:39,907 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:39,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:39,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1127481847, now seen corresponding path program 1 times [2020-08-22 19:06:39,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:39,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379087258] [2020-08-22 19:06:39,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:39,912 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:40,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:40,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:06:40,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379087258] [2020-08-22 19:06:40,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:40,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 19:06:40,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267872079] [2020-08-22 19:06:40,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 19:06:40,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:40,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 19:06:40,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-08-22 19:06:40,272 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 14 states. [2020-08-22 19:06:40,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:40,951 INFO L93 Difference]: Finished difference Result 190 states and 201 transitions. [2020-08-22 19:06:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-22 19:06:40,951 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2020-08-22 19:06:40,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:40,953 INFO L225 Difference]: With dead ends: 190 [2020-08-22 19:06:40,953 INFO L226 Difference]: Without dead ends: 160 [2020-08-22 19:06:40,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=173, Invalid=583, Unknown=0, NotChecked=0, Total=756 [2020-08-22 19:06:40,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-08-22 19:06:40,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 105. [2020-08-22 19:06:40,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-08-22 19:06:40,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 113 transitions. [2020-08-22 19:06:40,991 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 113 transitions. Word has length 37 [2020-08-22 19:06:40,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:06:40,993 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 113 transitions. [2020-08-22 19:06:40,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 19:06:40,993 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 113 transitions. [2020-08-22 19:06:40,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-08-22 19:06:40,998 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:40,998 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] [2020-08-22 19:06:40,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 19:06:40,999 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:40,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:40,999 INFO L82 PathProgramCache]: Analyzing trace with hash 821991267, now seen corresponding path program 1 times [2020-08-22 19:06:40,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:40,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325992479] [2020-08-22 19:06:41,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:41,071 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:41,148 ERROR L253 erpolLogProxyWrapper]: Interpolant 13 not inductive [2020-08-22 19:06:41,174 ERROR L276 FreeRefinementEngine]: Caught unknown exception: generated interpolants did not pass sanity check [2020-08-22 19:06:41,174 WARN L341 FreeRefinementEngine]: Global settings require throwing the following exception [2020-08-22 19:06:41,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 19:06:41,176 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:874) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:100) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:289) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-22 19:06:41,182 INFO L168 Benchmark]: Toolchain (without parser) took 4627.91 ms. Allocated memory was 140.0 MB in the beginning and 286.3 MB in the end (delta: 146.3 MB). Free memory was 102.7 MB in the beginning and 244.2 MB in the end (delta: -141.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-08-22 19:06:41,183 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 140.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 19:06:41,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 588.71 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 171.2 MB in the end (delta: -68.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:06:41,188 INFO L168 Benchmark]: Boogie Preprocessor took 69.04 ms. Allocated memory is still 203.9 MB. Free memory was 171.2 MB in the beginning and 167.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-08-22 19:06:41,190 INFO L168 Benchmark]: RCFGBuilder took 632.09 ms. Allocated memory is still 203.9 MB. Free memory was 167.6 MB in the beginning and 119.1 MB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2020-08-22 19:06:41,191 INFO L168 Benchmark]: TraceAbstraction took 3333.47 ms. Allocated memory was 203.9 MB in the beginning and 286.3 MB in the end (delta: 82.3 MB). Free memory was 118.4 MB in the beginning and 244.2 MB in the end (delta: -125.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 19:06:41,198 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 140.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 588.71 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 171.2 MB in the end (delta: -68.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.04 ms. Allocated memory is still 203.9 MB. Free memory was 171.2 MB in the beginning and 167.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 632.09 ms. Allocated memory is still 203.9 MB. Free memory was 167.6 MB in the beginning and 119.1 MB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3333.47 ms. Allocated memory was 203.9 MB in the beginning and 286.3 MB in the end (delta: 82.3 MB). Free memory was 118.4 MB in the beginning and 244.2 MB in the end (delta: -125.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...