/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 --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 0.1.25-72570d3 [2020-08-22 22:20:19,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 22:20:19,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 22:20:19,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 22:20:19,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 22:20:19,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 22:20:19,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 22:20:19,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 22:20:19,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 22:20:19,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 22:20:19,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 22:20:19,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 22:20:19,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 22:20:19,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 22:20:19,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 22:20:19,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 22:20:19,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 22:20:19,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 22:20:19,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 22:20:19,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 22:20:19,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 22:20:19,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 22:20:19,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 22:20:19,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 22:20:19,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 22:20:19,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 22:20:19,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 22:20:19,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 22:20:19,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 22:20:19,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 22:20:19,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 22:20:19,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 22:20:19,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 22:20:19,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 22:20:19,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 22:20:19,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 22:20:19,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 22:20:19,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 22:20:19,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 22:20:19,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 22:20:19,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 22:20:19,211 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 22:20:19,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 22:20:19,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 22:20:19,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 22:20:19,224 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 22:20:19,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 22:20:19,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 22:20:19,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 22:20:19,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 22:20:19,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 22:20:19,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 22:20:19,225 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 22:20:19,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 22:20:19,226 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 22:20:19,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 22:20:19,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 22:20:19,227 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 22:20:19,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 22:20:19,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 22:20:19,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 22:20:19,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 22:20:19,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 22:20:19,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 22:20:19,228 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-08-22 22:20:19,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 22:20:19,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 22:20:19,610 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 22:20:19,612 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 22:20:19,614 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 22:20:19,615 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-08-22 22:20:19,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b2af798f/255a1e37241f456e90d08f388226c40b/FLAG1078b22e4 [2020-08-22 22:20:20,314 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 22:20:20,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-08-22 22:20:20,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b2af798f/255a1e37241f456e90d08f388226c40b/FLAG1078b22e4 [2020-08-22 22:20:20,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b2af798f/255a1e37241f456e90d08f388226c40b [2020-08-22 22:20:20,615 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 22:20:20,617 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 22:20:20,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 22:20:20,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 22:20:20,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 22:20:20,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:20:20" (1/1) ... [2020-08-22 22:20:20,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f08e484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:20, skipping insertion in model container [2020-08-22 22:20:20,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:20:20" (1/1) ... [2020-08-22 22:20:20,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 22:20:20,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 22:20:21,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:20:21,189 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 22:20:21,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:20:21,321 INFO L208 MainTranslator]: Completed translation [2020-08-22 22:20:21,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:21 WrapperNode [2020-08-22 22:20:21,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 22:20:21,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 22:20:21,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 22:20:21,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 22:20:21,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:21" (1/1) ... [2020-08-22 22:20:21,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:21" (1/1) ... [2020-08-22 22:20:21,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:21" (1/1) ... [2020-08-22 22:20:21,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:21" (1/1) ... [2020-08-22 22:20:21,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:21" (1/1) ... [2020-08-22 22:20:21,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:21" (1/1) ... [2020-08-22 22:20:21,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:21" (1/1) ... [2020-08-22 22:20:21,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 22:20:21,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 22:20:21,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 22:20:21,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 22:20:21,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:21" (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 22:20:21,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 22:20:21,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 22:20:21,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 22:20:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-22 22:20:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-22 22:20:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-22 22:20:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-22 22:20:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-22 22:20:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-22 22:20:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-22 22:20:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-22 22:20:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-22 22:20:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-22 22:20:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-22 22:20:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-22 22:20:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-22 22:20:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-22 22:20:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-22 22:20:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-22 22:20:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-22 22:20:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-22 22:20:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-22 22:20:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-22 22:20:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-22 22:20:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-22 22:20:21,468 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-22 22:20:21,468 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-22 22:20:21,468 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-22 22:20:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-22 22:20:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-22 22:20:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-22 22:20:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-22 22:20:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-22 22:20:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-22 22:20:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-22 22:20:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-22 22:20:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-22 22:20:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-22 22:20:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-22 22:20:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-22 22:20:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-22 22:20:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-22 22:20:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-22 22:20:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-22 22:20:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-22 22:20:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-22 22:20:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-22 22:20:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-22 22:20:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-22 22:20:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-22 22:20:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-22 22:20:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-22 22:20:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-22 22:20:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 22:20:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 22:20:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-22 22:20:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 22:20:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-22 22:20:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-22 22:20:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-22 22:20:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-22 22:20:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-22 22:20:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 22:20:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-22 22:20:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-22 22:20:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-22 22:20:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 22:20:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-22 22:20:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-22 22:20:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-22 22:20:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-22 22:20:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-22 22:20:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-22 22:20:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-22 22:20:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-22 22:20:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-22 22:20:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-22 22:20:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-22 22:20:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-22 22:20:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-22 22:20:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-22 22:20:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-22 22:20:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-22 22:20:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-22 22:20:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-22 22:20:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-22 22:20:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-22 22:20:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-22 22:20:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-22 22:20:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-22 22:20:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-22 22:20:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-22 22:20:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-22 22:20:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-22 22:20:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-22 22:20:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-22 22:20:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-22 22:20:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-22 22:20:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-22 22:20:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-22 22:20:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-22 22:20:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-22 22:20:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-22 22:20:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-22 22:20:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-22 22:20:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-22 22:20:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 22:20:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 22:20:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 22:20:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 22:20:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 22:20:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 22:20:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 22:20:21,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 22:20:21,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 22:20:21,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 22:20:21,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 22:20:22,031 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 22:20:22,031 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-08-22 22:20:22,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:20:22 BoogieIcfgContainer [2020-08-22 22:20:22,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 22:20:22,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 22:20:22,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 22:20:22,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 22:20:22,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:20:20" (1/3) ... [2020-08-22 22:20:22,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccb9a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:20:22, skipping insertion in model container [2020-08-22 22:20:22,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:20:21" (2/3) ... [2020-08-22 22:20:22,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccb9a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:20:22, skipping insertion in model container [2020-08-22 22:20:22,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:20:22" (3/3) ... [2020-08-22 22:20:22,044 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2020-08-22 22:20:22,054 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 22:20:22,061 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-08-22 22:20:22,076 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-08-22 22:20:22,100 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 22:20:22,100 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 22:20:22,101 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 22:20:22,101 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 22:20:22,101 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 22:20:22,101 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 22:20:22,101 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 22:20:22,102 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 22:20:22,122 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-08-22 22:20:22,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-22 22:20:22,131 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:20:22,132 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 22:20:22,133 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:20:22,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:20:22,138 INFO L82 PathProgramCache]: Analyzing trace with hash -740897811, now seen corresponding path program 1 times [2020-08-22 22:20:22,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:20:22,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910971636] [2020-08-22 22:20:22,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:20:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:22,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:20:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:22,356 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 22:20:22,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910971636] [2020-08-22 22:20:22,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:20:22,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 22:20:22,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427193577] [2020-08-22 22:20:22,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 22:20:22,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:20:22,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 22:20:22,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 22:20:22,391 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2020-08-22 22:20:22,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:20:22,619 INFO L93 Difference]: Finished difference Result 179 states and 215 transitions. [2020-08-22 22:20:22,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 22:20:22,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-08-22 22:20:22,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:20:22,632 INFO L225 Difference]: With dead ends: 179 [2020-08-22 22:20:22,632 INFO L226 Difference]: Without dead ends: 77 [2020-08-22 22:20:22,636 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 22:20:22,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-08-22 22:20:22,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-08-22 22:20:22,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-08-22 22:20:22,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-08-22 22:20:22,683 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 20 [2020-08-22 22:20:22,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:20:22,683 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-08-22 22:20:22,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 22:20:22,684 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-08-22 22:20:22,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-22 22:20:22,685 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:20:22,685 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 22:20:22,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 22:20:22,685 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:20:22,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:20:22,686 INFO L82 PathProgramCache]: Analyzing trace with hash -2066269805, now seen corresponding path program 1 times [2020-08-22 22:20:22,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:20:22,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266282342] [2020-08-22 22:20:22,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:20:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:22,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:20:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:22,968 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 22:20:22,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266282342] [2020-08-22 22:20:22,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:20:22,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 22:20:22,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690131900] [2020-08-22 22:20:22,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 22:20:22,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:20:22,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 22:20:22,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 22:20:22,973 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 10 states. [2020-08-22 22:20:23,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:20:23,558 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2020-08-22 22:20:23,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 22:20:23,559 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-08-22 22:20:23,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:20:23,562 INFO L225 Difference]: With dead ends: 155 [2020-08-22 22:20:23,562 INFO L226 Difference]: Without dead ends: 153 [2020-08-22 22:20:23,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-08-22 22:20:23,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-08-22 22:20:23,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 85. [2020-08-22 22:20:23,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-08-22 22:20:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2020-08-22 22:20:23,590 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 22 [2020-08-22 22:20:23,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:20:23,591 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2020-08-22 22:20:23,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 22:20:23,592 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2020-08-22 22:20:23,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-22 22:20:23,593 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:20:23,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:20:23,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 22:20:23,594 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:20:23,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:20:23,595 INFO L82 PathProgramCache]: Analyzing trace with hash 807179936, now seen corresponding path program 1 times [2020-08-22 22:20:23,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:20:23,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058006710] [2020-08-22 22:20:23,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:20:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:23,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:20:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:23,838 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 22:20:23,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058006710] [2020-08-22 22:20:23,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:20:23,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 22:20:23,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799106362] [2020-08-22 22:20:23,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 22:20:23,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:20:23,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 22:20:23,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-22 22:20:23,847 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 12 states. [2020-08-22 22:20:24,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:20:24,444 INFO L93 Difference]: Finished difference Result 122 states and 132 transitions. [2020-08-22 22:20:24,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 22:20:24,445 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2020-08-22 22:20:24,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:20:24,447 INFO L225 Difference]: With dead ends: 122 [2020-08-22 22:20:24,447 INFO L226 Difference]: Without dead ends: 120 [2020-08-22 22:20:24,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2020-08-22 22:20:24,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-08-22 22:20:24,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 105. [2020-08-22 22:20:24,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-08-22 22:20:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2020-08-22 22:20:24,472 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 31 [2020-08-22 22:20:24,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:20:24,473 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2020-08-22 22:20:24,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 22:20:24,473 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2020-08-22 22:20:24,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-08-22 22:20:24,475 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:20:24,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:20:24,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 22:20:24,476 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:20:24,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:20:24,476 INFO L82 PathProgramCache]: Analyzing trace with hash -988969633, now seen corresponding path program 1 times [2020-08-22 22:20:24,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:20:24,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474490977] [2020-08-22 22:20:24,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:20:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:24,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:20:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:24,565 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 22:20:24,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1474490977] [2020-08-22 22:20:24,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:20:24,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 22:20:24,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662542259] [2020-08-22 22:20:24,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 22:20:24,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:20:24,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 22:20:24,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 22:20:24,576 INFO L87 Difference]: Start difference. First operand 105 states and 114 transitions. Second operand 4 states. [2020-08-22 22:20:24,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:20:24,756 INFO L93 Difference]: Finished difference Result 234 states and 252 transitions. [2020-08-22 22:20:24,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 22:20:24,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-08-22 22:20:24,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:20:24,759 INFO L225 Difference]: With dead ends: 234 [2020-08-22 22:20:24,759 INFO L226 Difference]: Without dead ends: 166 [2020-08-22 22:20:24,761 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 22:20:24,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-08-22 22:20:24,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 125. [2020-08-22 22:20:24,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-08-22 22:20:24,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 135 transitions. [2020-08-22 22:20:24,786 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 135 transitions. Word has length 36 [2020-08-22 22:20:24,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:20:24,786 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 135 transitions. [2020-08-22 22:20:24,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 22:20:24,787 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 135 transitions. [2020-08-22 22:20:24,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-08-22 22:20:24,788 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:20:24,788 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 22:20:24,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 22:20:24,789 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:20:24,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:20:24,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1230029085, now seen corresponding path program 1 times [2020-08-22 22:20:24,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:20:24,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482854077] [2020-08-22 22:20:24,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:20:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:25,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:20:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:25,223 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 22:20:25,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482854077] [2020-08-22 22:20:25,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:20:25,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 22:20:25,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799100134] [2020-08-22 22:20:25,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 22:20:25,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:20:25,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 22:20:25,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-08-22 22:20:25,226 INFO L87 Difference]: Start difference. First operand 125 states and 135 transitions. Second operand 14 states. [2020-08-22 22:20:26,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:20:26,074 INFO L93 Difference]: Finished difference Result 215 states and 228 transitions. [2020-08-22 22:20:26,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 22:20:26,075 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2020-08-22 22:20:26,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:20:26,077 INFO L225 Difference]: With dead ends: 215 [2020-08-22 22:20:26,077 INFO L226 Difference]: Without dead ends: 185 [2020-08-22 22:20:26,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2020-08-22 22:20:26,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-08-22 22:20:26,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 133. [2020-08-22 22:20:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-08-22 22:20:26,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 143 transitions. [2020-08-22 22:20:26,107 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 143 transitions. Word has length 37 [2020-08-22 22:20:26,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:20:26,107 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 143 transitions. [2020-08-22 22:20:26,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 22:20:26,108 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 143 transitions. [2020-08-22 22:20:26,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-08-22 22:20:26,109 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:20:26,110 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:20:26,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 22:20:26,110 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:20:26,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:20:26,111 INFO L82 PathProgramCache]: Analyzing trace with hash 626563183, now seen corresponding path program 1 times [2020-08-22 22:20:26,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:20:26,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749495510] [2020-08-22 22:20:26,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:20:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:20:26,160 ERROR L253 erpolLogProxyWrapper]: Interpolant 16 not inductive [2020-08-22 22:20:26,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 22:20:26,172 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.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) 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 22:20:26,179 INFO L168 Benchmark]: Toolchain (without parser) took 5561.36 ms. Allocated memory was 137.9 MB in the beginning and 293.6 MB in the end (delta: 155.7 MB). Free memory was 101.3 MB in the beginning and 229.2 MB in the end (delta: -127.9 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-08-22 22:20:26,180 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 137.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 22:20:26,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.49 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 169.5 MB in the end (delta: -68.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-08-22 22:20:26,183 INFO L168 Benchmark]: Boogie Preprocessor took 62.16 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 166.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-08-22 22:20:26,184 INFO L168 Benchmark]: RCFGBuilder took 650.29 ms. Allocated memory is still 202.4 MB. Free memory was 166.7 MB in the beginning and 117.0 MB in the end (delta: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 7.1 GB. [2020-08-22 22:20:26,185 INFO L168 Benchmark]: TraceAbstraction took 4138.84 ms. Allocated memory was 202.4 MB in the beginning and 293.6 MB in the end (delta: 91.2 MB). Free memory was 117.0 MB in the beginning and 229.2 MB in the end (delta: -112.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 22:20:26,189 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 137.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.49 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 169.5 MB in the end (delta: -68.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.16 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 166.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 650.29 ms. Allocated memory is still 202.4 MB. Free memory was 166.7 MB in the beginning and 117.0 MB in the end (delta: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4138.84 ms. Allocated memory was 202.4 MB in the beginning and 293.6 MB in the end (delta: 91.2 MB). Free memory was 117.0 MB in the beginning and 229.2 MB in the end (delta: -112.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...