/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/alt_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 01:09:37,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 01:09:37,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 01:09:37,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 01:09:37,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 01:09:37,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 01:09:37,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 01:09:37,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 01:09:37,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 01:09:37,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 01:09:37,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 01:09:37,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 01:09:37,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 01:09:37,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 01:09:37,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 01:09:37,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 01:09:37,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 01:09:37,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 01:09:37,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 01:09:37,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 01:09:37,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 01:09:37,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 01:09:37,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 01:09:37,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 01:09:37,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 01:09:37,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 01:09:37,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 01:09:37,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 01:09:37,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 01:09:37,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 01:09:37,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 01:09:37,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 01:09:37,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 01:09:37,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 01:09:37,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 01:09:37,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 01:09:37,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 01:09:37,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 01:09:37,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 01:09:37,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 01:09:37,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 01:09:37,666 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 [2020-08-19 01:09:37,711 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 01:09:37,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 01:09:37,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 01:09:37,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 01:09:37,714 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 01:09:37,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 01:09:37,714 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 01:09:37,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 01:09:37,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 01:09:37,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 01:09:37,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 01:09:37,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 01:09:37,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 01:09:37,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 01:09:37,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 01:09:37,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 01:09:37,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 01:09:37,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 01:09:37,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 01:09:37,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 01:09:37,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 01:09:37,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 01:09:37,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 01:09:37,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 01:09:37,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 01:09:37,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 01:09:37,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 01:09:37,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 01:09:37,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 01:09:37,720 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=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; [2020-08-19 01:09:38,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 01:09:38,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 01:09:38,039 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 01:09:38,040 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 01:09:38,041 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 01:09:38,041 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alt_test.i [2020-08-19 01:09:38,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8b8cc14e/737871759f264bbeb21c8e53962a12f3/FLAGc7b777cef [2020-08-19 01:09:38,740 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 01:09:38,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/alt_test.i [2020-08-19 01:09:38,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8b8cc14e/737871759f264bbeb21c8e53962a12f3/FLAGc7b777cef [2020-08-19 01:09:38,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8b8cc14e/737871759f264bbeb21c8e53962a12f3 [2020-08-19 01:09:38,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 01:09:38,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 01:09:38,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 01:09:38,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 01:09:38,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 01:09:38,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:09:38" (1/1) ... [2020-08-19 01:09:38,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7320a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:09:38, skipping insertion in model container [2020-08-19 01:09:38,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:09:38" (1/1) ... [2020-08-19 01:09:38,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 01:09:39,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 01:09:39,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:09:39,575 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 01:09:39,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:09:39,804 INFO L208 MainTranslator]: Completed translation [2020-08-19 01:09:39,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:09:39 WrapperNode [2020-08-19 01:09:39,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 01:09:39,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 01:09:39,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 01:09:39,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 01:09:39,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:09:39" (1/1) ... [2020-08-19 01:09:39,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:09:39" (1/1) ... [2020-08-19 01:09:39,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:09:39" (1/1) ... [2020-08-19 01:09:39,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:09:39" (1/1) ... [2020-08-19 01:09:39,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:09:39" (1/1) ... [2020-08-19 01:09:39,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:09:39" (1/1) ... [2020-08-19 01:09:39,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:09:39" (1/1) ... [2020-08-19 01:09:39,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 01:09:39,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 01:09:39,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 01:09:39,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 01:09:39,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:09:39" (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 [2020-08-19 01:09:40,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 01:09:40,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 01:09:40,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-19 01:09:40,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 01:09:40,073 INFO L138 BoogieDeclarations]: Found implementation of procedure l_malloc [2020-08-19 01:09:40,073 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2020-08-19 01:09:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 01:09:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-08-19 01:09:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-08-19 01:09:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-08-19 01:09:40,074 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-08-19 01:09:40,074 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-08-19 01:09:40,074 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-08-19 01:09:40,074 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-08-19 01:09:40,074 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-08-19 01:09:40,075 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-08-19 01:09:40,075 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-08-19 01:09:40,075 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-08-19 01:09:40,075 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-08-19 01:09:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-08-19 01:09:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-08-19 01:09:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-08-19 01:09:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-08-19 01:09:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-08-19 01:09:40,077 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-08-19 01:09:40,077 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-08-19 01:09:40,078 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-08-19 01:09:40,078 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-08-19 01:09:40,078 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-08-19 01:09:40,078 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-08-19 01:09:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-08-19 01:09:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-08-19 01:09:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-08-19 01:09:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-08-19 01:09:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-08-19 01:09:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-08-19 01:09:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-08-19 01:09:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-08-19 01:09:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-08-19 01:09:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-08-19 01:09:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-08-19 01:09:40,081 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-08-19 01:09:40,081 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-08-19 01:09:40,081 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-08-19 01:09:40,081 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-08-19 01:09:40,081 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 01:09:40,082 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-08-19 01:09:40,082 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-08-19 01:09:40,082 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-08-19 01:09:40,082 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-08-19 01:09:40,082 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-19 01:09:40,082 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-08-19 01:09:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-08-19 01:09:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-08-19 01:09:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-08-19 01:09:40,084 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-08-19 01:09:40,084 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-08-19 01:09:40,084 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-08-19 01:09:40,084 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-08-19 01:09:40,084 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-08-19 01:09:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-08-19 01:09:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-08-19 01:09:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-08-19 01:09:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-08-19 01:09:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-08-19 01:09:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-08-19 01:09:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-08-19 01:09:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-08-19 01:09:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-08-19 01:09:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-08-19 01:09:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-08-19 01:09:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-08-19 01:09:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-08-19 01:09:40,088 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-08-19 01:09:40,088 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-08-19 01:09:40,088 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-08-19 01:09:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-08-19 01:09:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-08-19 01:09:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-08-19 01:09:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-08-19 01:09:40,090 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-19 01:09:40,090 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-08-19 01:09:40,091 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-08-19 01:09:40,091 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-08-19 01:09:40,091 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-08-19 01:09:40,091 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-08-19 01:09:40,091 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-08-19 01:09:40,092 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-08-19 01:09:40,092 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-08-19 01:09:40,092 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-08-19 01:09:40,092 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-08-19 01:09:40,093 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-08-19 01:09:40,093 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-08-19 01:09:40,093 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-08-19 01:09:40,093 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-08-19 01:09:40,093 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-08-19 01:09:40,093 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-08-19 01:09:40,094 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-08-19 01:09:40,094 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-08-19 01:09:40,094 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-08-19 01:09:40,094 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-08-19 01:09:40,094 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-08-19 01:09:40,094 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-08-19 01:09:40,095 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-08-19 01:09:40,095 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-08-19 01:09:40,095 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-08-19 01:09:40,095 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-08-19 01:09:40,095 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-08-19 01:09:40,096 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-19 01:09:40,096 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-19 01:09:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-19 01:09:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-19 01:09:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-19 01:09:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-19 01:09:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-19 01:09:40,098 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-19 01:09:40,098 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-19 01:09:40,099 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-19 01:09:40,099 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-19 01:09:40,099 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-19 01:09:40,099 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-19 01:09:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-19 01:09:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-19 01:09:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-19 01:09:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-19 01:09:40,101 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-19 01:09:40,101 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-19 01:09:40,101 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-19 01:09:40,101 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-19 01:09:40,101 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-19 01:09:40,102 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-19 01:09:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-19 01:09:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-19 01:09:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-19 01:09:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-19 01:09:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-19 01:09:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-19 01:09:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-19 01:09:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-19 01:09:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-19 01:09:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-19 01:09:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-19 01:09:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-19 01:09:40,116 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-19 01:09:40,116 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-19 01:09:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-19 01:09:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-19 01:09:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-19 01:09:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-19 01:09:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-19 01:09:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-19 01:09:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-19 01:09:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-19 01:09:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-19 01:09:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-19 01:09:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-19 01:09:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-19 01:09:40,119 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-19 01:09:40,119 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 01:09:40,120 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-19 01:09:40,120 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-19 01:09:40,120 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 01:09:40,120 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-19 01:09:40,120 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-19 01:09:40,121 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-19 01:09:40,121 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-19 01:09:40,121 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 01:09:40,121 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-19 01:09:40,121 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-19 01:09:40,121 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-19 01:09:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-19 01:09:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-19 01:09:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-08-19 01:09:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-19 01:09:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-19 01:09:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-19 01:09:40,123 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-19 01:09:40,123 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-19 01:09:40,123 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-19 01:09:40,123 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-19 01:09:40,123 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-19 01:09:40,123 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-19 01:09:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-19 01:09:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-19 01:09:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-19 01:09:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-19 01:09:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-19 01:09:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-19 01:09:40,125 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-19 01:09:40,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-19 01:09:40,125 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-19 01:09:40,125 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-19 01:09:40,125 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-19 01:09:40,125 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-19 01:09:40,126 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-19 01:09:40,126 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-19 01:09:40,126 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-19 01:09:40,126 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-19 01:09:40,126 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-19 01:09:40,126 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-19 01:09:40,127 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-19 01:09:40,127 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-19 01:09:40,127 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-19 01:09:40,127 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-19 01:09:40,127 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-19 01:09:40,127 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-19 01:09:40,127 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-19 01:09:40,128 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-08-19 01:09:40,128 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-19 01:09:40,128 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-19 01:09:40,128 INFO L130 BoogieDeclarations]: Found specification of procedure l_malloc [2020-08-19 01:09:40,128 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2020-08-19 01:09:40,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 01:09:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 01:09:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 01:09:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 01:09:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 01:09:40,717 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 01:09:40,718 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-19 01:09:40,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:09:40 BoogieIcfgContainer [2020-08-19 01:09:40,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 01:09:40,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 01:09:40,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 01:09:40,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 01:09:40,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 01:09:38" (1/3) ... [2020-08-19 01:09:40,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789662a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:09:40, skipping insertion in model container [2020-08-19 01:09:40,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:09:39" (2/3) ... [2020-08-19 01:09:40,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789662a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:09:40, skipping insertion in model container [2020-08-19 01:09:40,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:09:40" (3/3) ... [2020-08-19 01:09:40,729 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2020-08-19 01:09:40,740 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 01:09:40,748 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 01:09:40,763 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 01:09:40,789 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 01:09:40,789 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 01:09:40,789 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 01:09:40,789 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 01:09:40,790 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 01:09:40,790 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 01:09:40,790 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 01:09:40,790 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 01:09:40,810 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-08-19 01:09:40,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-19 01:09:40,817 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:09:40,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:09:40,818 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:09:40,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:09:40,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1074821315, now seen corresponding path program 1 times [2020-08-19 01:09:40,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:09:40,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171436871] [2020-08-19 01:09:40,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:09:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:09:41,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:09:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:09:41,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:09:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:09:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:09:41,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171436871] [2020-08-19 01:09:41,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:09:41,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 01:09:41,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282147527] [2020-08-19 01:09:41,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 01:09:41,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:09:41,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 01:09:41,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 01:09:41,162 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-08-19 01:09:41,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:09:41,291 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-08-19 01:09:41,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 01:09:41,293 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-08-19 01:09:41,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:09:41,304 INFO L225 Difference]: With dead ends: 51 [2020-08-19 01:09:41,304 INFO L226 Difference]: Without dead ends: 24 [2020-08-19 01:09:41,309 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 [2020-08-19 01:09:41,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-08-19 01:09:41,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-08-19 01:09:41,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-08-19 01:09:41,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-08-19 01:09:41,357 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 19 [2020-08-19 01:09:41,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:09:41,358 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-08-19 01:09:41,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 01:09:41,358 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-08-19 01:09:41,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-19 01:09:41,359 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:09:41,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:09:41,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 01:09:41,360 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:09:41,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:09:41,360 INFO L82 PathProgramCache]: Analyzing trace with hash 373756737, now seen corresponding path program 1 times [2020-08-19 01:09:41,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:09:41,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112362938] [2020-08-19 01:09:41,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:09:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:09:41,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:09:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:09:41,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:09:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:09:41,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:09:41,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112362938] [2020-08-19 01:09:41,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:09:41,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 01:09:41,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412127882] [2020-08-19 01:09:41,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 01:09:41,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:09:41,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 01:09:41,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 01:09:41,465 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 5 states. [2020-08-19 01:09:41,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:09:41,558 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2020-08-19 01:09:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 01:09:41,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-08-19 01:09:41,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:09:41,560 INFO L225 Difference]: With dead ends: 31 [2020-08-19 01:09:41,560 INFO L226 Difference]: Without dead ends: 27 [2020-08-19 01:09:41,561 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 [2020-08-19 01:09:41,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-08-19 01:09:41,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-08-19 01:09:41,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-08-19 01:09:41,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-08-19 01:09:41,569 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2020-08-19 01:09:41,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:09:41,569 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-08-19 01:09:41,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 01:09:41,570 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-08-19 01:09:41,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-19 01:09:41,571 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:09:41,571 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] [2020-08-19 01:09:41,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 01:09:41,571 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:09:41,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:09:41,572 INFO L82 PathProgramCache]: Analyzing trace with hash -568191789, now seen corresponding path program 1 times [2020-08-19 01:09:41,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:09:41,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322052571] [2020-08-19 01:09:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:09:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:09:41,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:09:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:09:41,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:09:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:09:41,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 01:09:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:09:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:09:41,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322052571] [2020-08-19 01:09:41,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:09:41,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 01:09:41,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4515864] [2020-08-19 01:09:41,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 01:09:41,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:09:41,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 01:09:41,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 01:09:41,768 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 11 states. [2020-08-19 01:09:42,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:09:42,016 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-08-19 01:09:42,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 01:09:42,017 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-08-19 01:09:42,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:09:42,018 INFO L225 Difference]: With dead ends: 40 [2020-08-19 01:09:42,018 INFO L226 Difference]: Without dead ends: 27 [2020-08-19 01:09:42,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-08-19 01:09:42,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-08-19 01:09:42,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-08-19 01:09:42,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-08-19 01:09:42,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-08-19 01:09:42,035 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2020-08-19 01:09:42,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:09:42,036 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-08-19 01:09:42,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 01:09:42,036 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-08-19 01:09:42,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 01:09:42,038 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:09:42,038 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] [2020-08-19 01:09:42,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 01:09:42,038 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:09:42,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:09:42,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1903526385, now seen corresponding path program 1 times [2020-08-19 01:09:42,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:09:42,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149190458] [2020-08-19 01:09:42,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:09:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 01:09:42,090 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 01:09:42,090 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 01:09:42,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 01:09:42,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 01:09:42 BoogieIcfgContainer [2020-08-19 01:09:42,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 01:09:42,129 INFO L168 Benchmark]: Toolchain (without parser) took 3152.09 ms. Allocated memory was 141.6 MB in the beginning and 235.4 MB in the end (delta: 93.8 MB). Free memory was 102.5 MB in the beginning and 89.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 106.5 MB. Max. memory is 7.1 GB. [2020-08-19 01:09:42,134 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 01:09:42,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 833.01 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 154.9 MB in the end (delta: -52.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-08-19 01:09:42,138 INFO L168 Benchmark]: Boogie Preprocessor took 136.70 ms. Allocated memory is still 205.5 MB. Free memory was 154.9 MB in the beginning and 151.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-08-19 01:09:42,139 INFO L168 Benchmark]: RCFGBuilder took 774.61 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 151.7 MB in the beginning and 205.5 MB in the end (delta: -53.8 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. [2020-08-19 01:09:42,147 INFO L168 Benchmark]: TraceAbstraction took 1400.74 ms. Allocated memory is still 235.4 MB. Free memory was 204.1 MB in the beginning and 89.9 MB in the end (delta: 114.2 MB). Peak memory consumption was 114.2 MB. Max. memory is 7.1 GB. [2020-08-19 01:09:42,156 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 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 833.01 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 154.9 MB in the end (delta: -52.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.70 ms. Allocated memory is still 205.5 MB. Free memory was 154.9 MB in the beginning and 151.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 774.61 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 151.7 MB in the beginning and 205.5 MB in the end (delta: -53.8 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1400.74 ms. Allocated memory is still 235.4 MB. Free memory was 204.1 MB in the beginning and 89.9 MB in the end (delta: 114.2 MB). Peak memory consumption was 114.2 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: 1.3s, 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, 0.0s 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...