/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/alt_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 18:09:21,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:09:21,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:09:21,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:09:21,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:09:21,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:09:21,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:09:21,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:09:21,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:09:21,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:09:21,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:09:21,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:09:21,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:09:21,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:09:21,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:09:21,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:09:21,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:09:21,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:09:21,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:09:21,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:09:21,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:09:21,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:09:22,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:09:22,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:09:22,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:09:22,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:09:22,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:09:22,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:09:22,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:09:22,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 18:09:22,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 18:09:22,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 18:09:22,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 18:09:22,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 18:09:22,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 18:09:22,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 18:09:22,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 18:09:22,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 18:09:22,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:09:22,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:09:22,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:09:22,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 18:09:22,069 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:09:22,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:09:22,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:09:22,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:09:22,071 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:09:22,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:09:22,072 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:09:22,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:09:22,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:09:22,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:09:22,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:09:22,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:09:22,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:09:22,074 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:09:22,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:09:22,075 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:09:22,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:09:22,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:09:22,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:09:22,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:09:22,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:09:22,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:09:22,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:09:22,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:09:22,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:09:22,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:09:22,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:09:22,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:09:22,077 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:09:22,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES 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: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-08-21 18:09:22,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:09:22,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:09:22,409 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:09:22,410 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:09:22,411 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:09:22,412 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alt_test.i [2020-08-21 18:09:22,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e98554be8/0d65f80709ba4d5f8d909b863af28381/FLAG97775ce89 [2020-08-21 18:09:23,017 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:09:23,018 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/alt_test.i [2020-08-21 18:09:23,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e98554be8/0d65f80709ba4d5f8d909b863af28381/FLAG97775ce89 [2020-08-21 18:09:23,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e98554be8/0d65f80709ba4d5f8d909b863af28381 [2020-08-21 18:09:23,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:09:23,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:09:23,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:09:23,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:09:23,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:09:23,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:09:23" (1/1) ... [2020-08-21 18:09:23,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7603d3ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:23, skipping insertion in model container [2020-08-21 18:09:23,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:09:23" (1/1) ... [2020-08-21 18:09:23,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:09:23,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:09:23,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:09:23,899 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:09:23,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:09:24,060 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:09:24,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24 WrapperNode [2020-08-21 18:09:24,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:09:24,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:09:24,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:09:24,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:09:24,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... [2020-08-21 18:09:24,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:09:24,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:09:24,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:09:24,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:09:24,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 18:09:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:09:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:09:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-21 18:09:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:09:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure l_malloc [2020-08-21 18:09:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2020-08-21 18:09:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:09:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-08-21 18:09:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-08-21 18:09:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-08-21 18:09:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-08-21 18:09:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-08-21 18:09:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-08-21 18:09:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-08-21 18:09:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-08-21 18:09:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-08-21 18:09:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-08-21 18:09:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-08-21 18:09:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-08-21 18:09:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-08-21 18:09:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-08-21 18:09:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-08-21 18:09:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-08-21 18:09:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-08-21 18:09:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-08-21 18:09:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-08-21 18:09:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-08-21 18:09:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-08-21 18:09:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-08-21 18:09:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-08-21 18:09:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-08-21 18:09:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-08-21 18:09:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-08-21 18:09:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-08-21 18:09:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-08-21 18:09:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-08-21 18:09:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-08-21 18:09:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-08-21 18:09:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-08-21 18:09:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-08-21 18:09:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-08-21 18:09:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-08-21 18:09:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-08-21 18:09:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-08-21 18:09:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-08-21 18:09:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 18:09:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-08-21 18:09:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-08-21 18:09:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-08-21 18:09:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-08-21 18:09:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-21 18:09:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-08-21 18:09:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-08-21 18:09:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-08-21 18:09:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-08-21 18:09:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-08-21 18:09:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-08-21 18:09:24,220 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-08-21 18:09:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-08-21 18:09:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-08-21 18:09:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-08-21 18:09:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-08-21 18:09:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-08-21 18:09:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-08-21 18:09:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-08-21 18:09:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-08-21 18:09:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-08-21 18:09:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-08-21 18:09:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-08-21 18:09:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-08-21 18:09:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-08-21 18:09:24,223 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-08-21 18:09:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-08-21 18:09:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-08-21 18:09:24,225 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-08-21 18:09:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-08-21 18:09:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-08-21 18:09:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-08-21 18:09:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-08-21 18:09:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-08-21 18:09:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-21 18:09:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-08-21 18:09:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-08-21 18:09:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-08-21 18:09:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-08-21 18:09:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-08-21 18:09:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-08-21 18:09:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-08-21 18:09:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-08-21 18:09:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-08-21 18:09:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-08-21 18:09:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-08-21 18:09:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-08-21 18:09:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-08-21 18:09:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-08-21 18:09:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-08-21 18:09:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-08-21 18:09:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-08-21 18:09:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-08-21 18:09:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-08-21 18:09:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-08-21 18:09:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-08-21 18:09:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-08-21 18:09:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-08-21 18:09:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-08-21 18:09:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-08-21 18:09:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-08-21 18:09:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-08-21 18:09:24,233 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-21 18:09:24,233 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-21 18:09:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-21 18:09:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-21 18:09:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-21 18:09:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-21 18:09:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-21 18:09:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-21 18:09:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-21 18:09:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-21 18:09:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-21 18:09:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-21 18:09:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-21 18:09:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-21 18:09:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-21 18:09:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-21 18:09:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-21 18:09:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-21 18:09:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-21 18:09:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-21 18:09:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-21 18:09:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-21 18:09:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-21 18:09:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-21 18:09:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-21 18:09:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-21 18:09:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-21 18:09:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-21 18:09:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-21 18:09:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-21 18:09:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-21 18:09:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-21 18:09:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-21 18:09:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-21 18:09:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-21 18:09:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-21 18:09:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-21 18:09:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-21 18:09:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-21 18:09:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-21 18:09:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-21 18:09:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-21 18:09:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-21 18:09:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-21 18:09:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-21 18:09:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-21 18:09:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-21 18:09:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-21 18:09:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-21 18:09:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-21 18:09:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 18:09:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 18:09:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-21 18:09:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 18:09:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-21 18:09:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-21 18:09:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-21 18:09:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-21 18:09:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 18:09:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-21 18:09:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-21 18:09:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 18:09:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-21 18:09:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-21 18:09:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-08-21 18:09:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-21 18:09:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-21 18:09:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-21 18:09:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-21 18:09:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-21 18:09:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-21 18:09:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-21 18:09:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-21 18:09:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-21 18:09:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-21 18:09:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-21 18:09:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-21 18:09:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-21 18:09:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-21 18:09:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-21 18:09:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-21 18:09:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-21 18:09:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-21 18:09:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-21 18:09:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-21 18:09:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-21 18:09:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-21 18:09:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-21 18:09:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-21 18:09:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-21 18:09:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-21 18:09:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-21 18:09:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-21 18:09:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-21 18:09:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-21 18:09:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-21 18:09:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-21 18:09:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-21 18:09:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-21 18:09:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-08-21 18:09:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-21 18:09:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-21 18:09:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure l_malloc [2020-08-21 18:09:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2020-08-21 18:09:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:09:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 18:09:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 18:09:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:09:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:09:24,823 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:09:24,823 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 18:09:24,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:09:24 BoogieIcfgContainer [2020-08-21 18:09:24,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:09:24,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:09:24,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:09:24,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:09:24,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:09:23" (1/3) ... [2020-08-21 18:09:24,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ea66bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:09:24, skipping insertion in model container [2020-08-21 18:09:24,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:24" (2/3) ... [2020-08-21 18:09:24,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ea66bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:09:24, skipping insertion in model container [2020-08-21 18:09:24,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:09:24" (3/3) ... [2020-08-21 18:09:24,836 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2020-08-21 18:09:24,847 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:09:24,855 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 18:09:24,869 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 18:09:24,893 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:09:24,893 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:09:24,893 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:09:24,893 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:09:24,894 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:09:24,894 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:09:24,894 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:09:24,894 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:09:24,913 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-08-21 18:09:24,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-21 18:09:24,919 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:24,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 18:09:24,921 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:24,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:24,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1074821315, now seen corresponding path program 1 times [2020-08-21 18:09:24,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:24,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921056681] [2020-08-21 18:09:24,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:09:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:09:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:09:25,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921056681] [2020-08-21 18:09:25,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:09:25,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 18:09:25,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781362554] [2020-08-21 18:09:25,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 18:09:25,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:09:25,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 18:09:25,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 18:09:25,272 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-08-21 18:09:25,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:09:25,430 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-08-21 18:09:25,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 18:09:25,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-08-21 18:09:25,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:09:25,441 INFO L225 Difference]: With dead ends: 51 [2020-08-21 18:09:25,442 INFO L226 Difference]: Without dead ends: 24 [2020-08-21 18:09:25,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 18:09:25,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-08-21 18:09:25,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-08-21 18:09:25,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-08-21 18:09:25,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-08-21 18:09:25,491 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 19 [2020-08-21 18:09:25,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:09:25,491 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-08-21 18:09:25,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 18:09:25,492 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-08-21 18:09:25,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-21 18:09:25,493 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:25,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 18:09:25,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:09:25,493 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:25,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:25,494 INFO L82 PathProgramCache]: Analyzing trace with hash 373756737, now seen corresponding path program 1 times [2020-08-21 18:09:25,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:25,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290125753] [2020-08-21 18:09:25,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:09:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:09:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:09:25,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290125753] [2020-08-21 18:09:25,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:09:25,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 18:09:25,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932702502] [2020-08-21 18:09:25,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 18:09:25,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:09:25,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 18:09:25,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 18:09:25,623 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 5 states. [2020-08-21 18:09:25,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:09:25,717 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2020-08-21 18:09:25,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 18:09:25,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-08-21 18:09:25,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:09:25,719 INFO L225 Difference]: With dead ends: 31 [2020-08-21 18:09:25,719 INFO L226 Difference]: Without dead ends: 27 [2020-08-21 18:09:25,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-08-21 18:09:25,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-08-21 18:09:25,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-08-21 18:09:25,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-08-21 18:09:25,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-08-21 18:09:25,728 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2020-08-21 18:09:25,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:09:25,729 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-08-21 18:09:25,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 18:09:25,729 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-08-21 18:09:25,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-21 18:09:25,730 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:25,730 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] [2020-08-21 18:09:25,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 18:09:25,731 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:25,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:25,731 INFO L82 PathProgramCache]: Analyzing trace with hash -568191789, now seen corresponding path program 1 times [2020-08-21 18:09:25,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:25,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101991647] [2020-08-21 18:09:25,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:09:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:09:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 18:09:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:25,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:09:25,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101991647] [2020-08-21 18:09:25,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:09:25,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-21 18:09:25,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991976350] [2020-08-21 18:09:25,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 18:09:25,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:09:25,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 18:09:25,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-21 18:09:25,963 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 11 states. [2020-08-21 18:09:26,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:09:26,247 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-08-21 18:09:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 18:09:26,248 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-08-21 18:09:26,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:09:26,250 INFO L225 Difference]: With dead ends: 40 [2020-08-21 18:09:26,251 INFO L226 Difference]: Without dead ends: 27 [2020-08-21 18:09:26,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-08-21 18:09:26,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-08-21 18:09:26,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-08-21 18:09:26,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-08-21 18:09:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-08-21 18:09:26,262 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2020-08-21 18:09:26,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:09:26,263 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-08-21 18:09:26,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 18:09:26,263 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-08-21 18:09:26,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 18:09:26,264 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:26,265 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 18:09:26,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 18:09:26,266 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:26,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:26,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1903526385, now seen corresponding path program 1 times [2020-08-21 18:09:26,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:26,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444012771] [2020-08-21 18:09:26,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 18:09:26,303 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 18:09:26,303 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 18:09:26,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 18:09:26,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 06:09:26 BoogieIcfgContainer [2020-08-21 18:09:26,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 18:09:26,334 INFO L168 Benchmark]: Toolchain (without parser) took 2978.60 ms. Allocated memory was 144.2 MB in the beginning and 242.7 MB in the end (delta: 98.6 MB). Free memory was 105.7 MB in the beginning and 195.6 MB in the end (delta: -89.9 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:26,339 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 125.7 MB in the beginning and 125.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 18:09:26,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.45 ms. Allocated memory was 144.2 MB in the beginning and 206.0 MB in the end (delta: 61.9 MB). Free memory was 105.5 MB in the beginning and 155.5 MB in the end (delta: -50.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:26,342 INFO L168 Benchmark]: Boogie Preprocessor took 68.50 ms. Allocated memory is still 206.0 MB. Free memory was 155.5 MB in the beginning and 152.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:26,344 INFO L168 Benchmark]: RCFGBuilder took 693.64 ms. Allocated memory was 206.0 MB in the beginning and 231.7 MB in the end (delta: 25.7 MB). Free memory was 152.3 MB in the beginning and 196.5 MB in the end (delta: -44.2 MB). Peak memory consumption was 55.9 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:26,350 INFO L168 Benchmark]: TraceAbstraction took 1499.79 ms. Allocated memory was 231.7 MB in the beginning and 242.7 MB in the end (delta: 11.0 MB). Free memory was 196.5 MB in the beginning and 195.6 MB in the end (delta: 925.4 kB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:26,361 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 125.7 MB in the beginning and 125.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.45 ms. Allocated memory was 144.2 MB in the beginning and 206.0 MB in the end (delta: 61.9 MB). Free memory was 105.5 MB in the beginning and 155.5 MB in the end (delta: -50.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.50 ms. Allocated memory is still 206.0 MB. Free memory was 155.5 MB in the beginning and 152.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 693.64 ms. Allocated memory was 206.0 MB in the beginning and 231.7 MB in the end (delta: 25.7 MB). Free memory was 152.3 MB in the beginning and 196.5 MB in the end (delta: -44.2 MB). Peak memory consumption was 55.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1499.79 ms. Allocated memory was 231.7 MB in the beginning and 242.7 MB in the end (delta: 11.0 MB). Free memory was 196.5 MB in the beginning and 195.6 MB in the end (delta: 925.4 kB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1601]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1606] int globalState = 0; [L1612] CALL, EXPR l_malloc(sizeof(int)) [L1619] void *retVal = malloc(size); [L1620] COND TRUE retVal != ((void *)0) [L1621] globalState=1 [L1622] return retVal; [L1612] RET, EXPR l_malloc(sizeof(int)) [L1612] int *a = (int*) l_malloc(sizeof(int)); [L1613] CALL l_free(a) [L1629] COND TRUE ptr!=((void *)0) [L1629] (globalState == 1) ? (0) : __blast_assert () [L1630] globalState = 0 [L1613] RET l_free(a) [L1614] CALL l_free(a) [L1629] COND TRUE ptr!=((void *)0) [L1629] (globalState == 1) ? (0) : __blast_assert () [L1629] CALL __blast_assert () [L1601] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 63 SDslu, 111 SDs, 0 SdLazy, 171 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 4074 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...