/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 -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 05:12:22,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 05:12:22,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 05:12:22,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 05:12:22,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 05:12:22,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 05:12:22,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 05:12:22,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 05:12:22,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 05:12:22,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 05:12:22,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 05:12:22,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 05:12:22,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 05:12:22,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 05:12:22,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 05:12:22,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 05:12:22,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 05:12:22,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 05:12:22,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 05:12:22,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 05:12:22,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 05:12:22,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 05:12:22,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 05:12:22,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 05:12:22,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 05:12:22,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 05:12:22,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 05:12:22,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 05:12:22,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 05:12:22,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 05:12:22,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 05:12:22,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 05:12:22,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 05:12:22,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 05:12:22,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 05:12:22,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 05:12:22,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 05:12:22,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 05:12:22,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 05:12:22,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 05:12:22,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 05:12:22,600 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 05:12:22,636 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 05:12:22,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 05:12:22,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 05:12:22,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 05:12:22,638 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 05:12:22,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 05:12:22,639 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 05:12:22,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 05:12:22,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 05:12:22,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 05:12:22,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 05:12:22,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 05:12:22,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 05:12:22,641 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 05:12:22,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 05:12:22,642 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 05:12:22,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 05:12:22,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 05:12:22,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 05:12:22,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 05:12:22,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 05:12:22,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 05:12:22,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 05:12:22,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 05:12:22,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 05:12:22,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 05:12:22,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 05:12:22,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 05:12:22,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 05:12:22,645 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=SMALLESTAMONGWIDE;tolerance=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; [2020-08-19 05:12:22,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 05:12:22,946 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 05:12:22,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 05:12:22,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 05:12:22,951 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 05:12:22,952 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alt_test.i [2020-08-19 05:12:23,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e47ebfb4/d62bcf6dad324a7e914f4d3c5c89ab90/FLAG8f564efee [2020-08-19 05:12:23,589 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 05:12:23,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/alt_test.i [2020-08-19 05:12:23,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e47ebfb4/d62bcf6dad324a7e914f4d3c5c89ab90/FLAG8f564efee [2020-08-19 05:12:23,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e47ebfb4/d62bcf6dad324a7e914f4d3c5c89ab90 [2020-08-19 05:12:23,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 05:12:23,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 05:12:23,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 05:12:23,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 05:12:23,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 05:12:23,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:12:23" (1/1) ... [2020-08-19 05:12:23,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f86e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:12:23, skipping insertion in model container [2020-08-19 05:12:23,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:12:23" (1/1) ... [2020-08-19 05:12:23,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 05:12:23,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 05:12:24,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:12:24,408 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 05:12:24,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:12:24,555 INFO L208 MainTranslator]: Completed translation [2020-08-19 05:12:24,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:12:24 WrapperNode [2020-08-19 05:12:24,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 05:12:24,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 05:12:24,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 05:12:24,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 05:12:24,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:12:24" (1/1) ... [2020-08-19 05:12:24,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:12:24" (1/1) ... [2020-08-19 05:12:24,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:12:24" (1/1) ... [2020-08-19 05:12:24,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:12:24" (1/1) ... [2020-08-19 05:12:24,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:12:24" (1/1) ... [2020-08-19 05:12:24,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:12:24" (1/1) ... [2020-08-19 05:12:24,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:12:24" (1/1) ... [2020-08-19 05:12:24,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 05:12:24,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 05:12:24,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 05:12:24,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 05:12:24,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:12:24" (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 [2020-08-19 05:12:24,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 05:12:24,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 05:12:24,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-19 05:12:24,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 05:12:24,677 INFO L138 BoogieDeclarations]: Found implementation of procedure l_malloc [2020-08-19 05:12:24,677 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2020-08-19 05:12:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 05:12:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-08-19 05:12:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-08-19 05:12:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-08-19 05:12:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-08-19 05:12:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-08-19 05:12:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-08-19 05:12:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-08-19 05:12:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-08-19 05:12:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-08-19 05:12:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-08-19 05:12:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-08-19 05:12:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-08-19 05:12:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-08-19 05:12:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-08-19 05:12:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-08-19 05:12:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-08-19 05:12:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-08-19 05:12:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-08-19 05:12:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-08-19 05:12:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-08-19 05:12:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-08-19 05:12:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-08-19 05:12:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-08-19 05:12:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-08-19 05:12:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-08-19 05:12:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-08-19 05:12:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-08-19 05:12:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-08-19 05:12:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-08-19 05:12:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-08-19 05:12:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-08-19 05:12:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-08-19 05:12:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-08-19 05:12:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-08-19 05:12:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-08-19 05:12:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-08-19 05:12:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-08-19 05:12:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-08-19 05:12:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 05:12:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-08-19 05:12:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-08-19 05:12:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-08-19 05:12:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-08-19 05:12:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-19 05:12:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-08-19 05:12:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-08-19 05:12:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-08-19 05:12:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-08-19 05:12:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-08-19 05:12:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-08-19 05:12:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-08-19 05:12:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-08-19 05:12:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-08-19 05:12:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-08-19 05:12:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-08-19 05:12:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-08-19 05:12:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-08-19 05:12:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-08-19 05:12:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-08-19 05:12:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-08-19 05:12:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-08-19 05:12:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-08-19 05:12:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-08-19 05:12:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-08-19 05:12:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-08-19 05:12:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-08-19 05:12:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-08-19 05:12:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-08-19 05:12:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-08-19 05:12:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-08-19 05:12:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-08-19 05:12:24,690 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-08-19 05:12:24,690 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-08-19 05:12:24,690 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-19 05:12:24,690 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-08-19 05:12:24,690 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-08-19 05:12:24,691 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-08-19 05:12:24,691 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-08-19 05:12:24,691 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-08-19 05:12:24,691 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-08-19 05:12:24,691 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-08-19 05:12:24,692 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-08-19 05:12:24,692 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-08-19 05:12:24,692 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-08-19 05:12:24,692 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-08-19 05:12:24,692 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-08-19 05:12:24,693 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-08-19 05:12:24,693 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-08-19 05:12:24,693 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-08-19 05:12:24,693 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-08-19 05:12:24,693 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-08-19 05:12:24,693 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-08-19 05:12:24,694 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-08-19 05:12:24,694 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-08-19 05:12:24,694 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-08-19 05:12:24,694 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-08-19 05:12:24,694 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-08-19 05:12:24,695 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-08-19 05:12:24,695 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-08-19 05:12:24,695 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-08-19 05:12:24,695 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-08-19 05:12:24,695 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-19 05:12:24,695 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-19 05:12:24,696 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-19 05:12:24,696 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-19 05:12:24,696 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-19 05:12:24,696 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-19 05:12:24,696 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-19 05:12:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-19 05:12:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-19 05:12:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-19 05:12:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-19 05:12:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-19 05:12:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-19 05:12:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-19 05:12:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-19 05:12:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-19 05:12:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-19 05:12:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-19 05:12:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-19 05:12:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-19 05:12:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-19 05:12:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-19 05:12:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-19 05:12:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-19 05:12:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-19 05:12:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-19 05:12:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-19 05:12:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-19 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-19 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-19 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-19 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-19 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-19 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-19 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-19 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-19 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-19 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-19 05:12:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-19 05:12:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-19 05:12:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-19 05:12:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-19 05:12:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-19 05:12:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-19 05:12:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-19 05:12:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-19 05:12:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-19 05:12:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-19 05:12:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-19 05:12:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-19 05:12:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 05:12:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-19 05:12:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-19 05:12:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 05:12:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-19 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-19 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-19 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-19 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-19 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-19 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-19 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-19 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-19 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-08-19 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-19 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-19 05:12:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-19 05:12:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-19 05:12:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-19 05:12:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-19 05:12:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-19 05:12:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-19 05:12:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-19 05:12:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-19 05:12:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-19 05:12:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-19 05:12:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-19 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-19 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-19 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-19 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-19 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-19 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-19 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-19 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-19 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-19 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-19 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-19 05:12:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-19 05:12:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-19 05:12:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-19 05:12:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-19 05:12:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-19 05:12:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-19 05:12:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-19 05:12:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-19 05:12:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-19 05:12:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-19 05:12:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-08-19 05:12:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-19 05:12:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-19 05:12:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure l_malloc [2020-08-19 05:12:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2020-08-19 05:12:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 05:12:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 05:12:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 05:12:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 05:12:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 05:12:25,261 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 05:12:25,261 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-19 05:12:25,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:12:25 BoogieIcfgContainer [2020-08-19 05:12:25,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 05:12:25,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 05:12:25,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 05:12:25,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 05:12:25,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 05:12:23" (1/3) ... [2020-08-19 05:12:25,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d4eaae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:12:25, skipping insertion in model container [2020-08-19 05:12:25,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:12:24" (2/3) ... [2020-08-19 05:12:25,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d4eaae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:12:25, skipping insertion in model container [2020-08-19 05:12:25,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:12:25" (3/3) ... [2020-08-19 05:12:25,275 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2020-08-19 05:12:25,285 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 05:12:25,294 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 05:12:25,309 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 05:12:25,334 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 05:12:25,334 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 05:12:25,335 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 05:12:25,335 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 05:12:25,335 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 05:12:25,335 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 05:12:25,336 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 05:12:25,336 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 05:12:25,356 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-08-19 05:12:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-19 05:12:25,363 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:12:25,364 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 05:12:25,365 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:12:25,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:12:25,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1074821315, now seen corresponding path program 1 times [2020-08-19 05:12:25,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:12:25,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159543737] [2020-08-19 05:12:25,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:12:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:12:25,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:12:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:12:25,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:12:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:12:25,653 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 05:12:25,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159543737] [2020-08-19 05:12:25,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:12:25,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 05:12:25,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630690487] [2020-08-19 05:12:25,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 05:12:25,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:12:25,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 05:12:25,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 05:12:25,683 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-08-19 05:12:25,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:12:25,825 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-08-19 05:12:25,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 05:12:25,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-08-19 05:12:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:12:25,836 INFO L225 Difference]: With dead ends: 51 [2020-08-19 05:12:25,836 INFO L226 Difference]: Without dead ends: 24 [2020-08-19 05:12:25,840 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 05:12:25,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-08-19 05:12:25,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-08-19 05:12:25,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-08-19 05:12:25,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-08-19 05:12:25,885 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 19 [2020-08-19 05:12:25,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:12:25,886 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-08-19 05:12:25,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 05:12:25,886 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-08-19 05:12:25,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-19 05:12:25,887 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:12:25,887 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 05:12:25,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 05:12:25,888 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:12:25,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:12:25,889 INFO L82 PathProgramCache]: Analyzing trace with hash 373756737, now seen corresponding path program 1 times [2020-08-19 05:12:25,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:12:25,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996404157] [2020-08-19 05:12:25,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:12:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:12:25,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:12:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:12:25,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:12:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:12:26,010 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 05:12:26,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996404157] [2020-08-19 05:12:26,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:12:26,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 05:12:26,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053261830] [2020-08-19 05:12:26,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 05:12:26,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:12:26,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 05:12:26,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 05:12:26,014 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 5 states. [2020-08-19 05:12:26,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:12:26,114 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2020-08-19 05:12:26,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 05:12:26,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-08-19 05:12:26,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:12:26,116 INFO L225 Difference]: With dead ends: 31 [2020-08-19 05:12:26,116 INFO L226 Difference]: Without dead ends: 27 [2020-08-19 05:12:26,118 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 05:12:26,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-08-19 05:12:26,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-08-19 05:12:26,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-08-19 05:12:26,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-08-19 05:12:26,126 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2020-08-19 05:12:26,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:12:26,126 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-08-19 05:12:26,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 05:12:26,126 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-08-19 05:12:26,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-19 05:12:26,127 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:12:26,128 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 05:12:26,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 05:12:26,128 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:12:26,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:12:26,129 INFO L82 PathProgramCache]: Analyzing trace with hash -568191789, now seen corresponding path program 1 times [2020-08-19 05:12:26,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:12:26,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123165995] [2020-08-19 05:12:26,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:12:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:12:26,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:12:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:12:26,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:12:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:12:26,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:12:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:12:26,315 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 05:12:26,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123165995] [2020-08-19 05:12:26,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:12:26,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 05:12:26,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927502587] [2020-08-19 05:12:26,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 05:12:26,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:12:26,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 05:12:26,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 05:12:26,318 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 11 states. [2020-08-19 05:12:26,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:12:26,519 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-08-19 05:12:26,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 05:12:26,519 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-08-19 05:12:26,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:12:26,520 INFO L225 Difference]: With dead ends: 40 [2020-08-19 05:12:26,521 INFO L226 Difference]: Without dead ends: 27 [2020-08-19 05:12:26,522 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 05:12:26,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-08-19 05:12:26,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-08-19 05:12:26,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-08-19 05:12:26,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-08-19 05:12:26,529 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2020-08-19 05:12:26,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:12:26,529 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-08-19 05:12:26,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 05:12:26,530 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-08-19 05:12:26,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 05:12:26,531 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:12:26,531 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 05:12:26,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 05:12:26,531 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:12:26,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:12:26,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1903526385, now seen corresponding path program 1 times [2020-08-19 05:12:26,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:12:26,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699263926] [2020-08-19 05:12:26,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:12:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 05:12:26,552 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 05:12:26,552 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 05:12:26,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 05:12:26,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 05:12:26 BoogieIcfgContainer [2020-08-19 05:12:26,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 05:12:26,576 INFO L168 Benchmark]: Toolchain (without parser) took 2725.46 ms. Allocated memory was 140.5 MB in the beginning and 238.0 MB in the end (delta: 97.5 MB). Free memory was 101.5 MB in the beginning and 91.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 107.2 MB. Max. memory is 7.1 GB. [2020-08-19 05:12:26,577 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-19 05:12:26,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.78 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 101.3 MB in the beginning and 151.5 MB in the end (delta: -50.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-08-19 05:12:26,579 INFO L168 Benchmark]: Boogie Preprocessor took 60.81 ms. Allocated memory is still 202.9 MB. Free memory was 151.5 MB in the beginning and 148.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-08-19 05:12:26,580 INFO L168 Benchmark]: RCFGBuilder took 648.32 ms. Allocated memory was 202.9 MB in the beginning and 238.0 MB in the end (delta: 35.1 MB). Free memory was 148.2 MB in the beginning and 207.8 MB in the end (delta: -59.6 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. [2020-08-19 05:12:26,581 INFO L168 Benchmark]: TraceAbstraction took 1306.60 ms. Allocated memory is still 238.0 MB. Free memory was 206.4 MB in the beginning and 91.8 MB in the end (delta: 114.5 MB). Peak memory consumption was 114.5 MB. Max. memory is 7.1 GB. [2020-08-19 05:12:26,585 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 703.78 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 101.3 MB in the beginning and 151.5 MB in the end (delta: -50.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.81 ms. Allocated memory is still 202.9 MB. Free memory was 151.5 MB in the beginning and 148.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 648.32 ms. Allocated memory was 202.9 MB in the beginning and 238.0 MB in the end (delta: 35.1 MB). Free memory was 148.2 MB in the beginning and 207.8 MB in the end (delta: -59.6 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1306.60 ms. Allocated memory is still 238.0 MB. Free memory was 206.4 MB in the beginning and 91.8 MB in the end (delta: 114.5 MB). Peak memory consumption was 114.5 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: 1.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.4s, 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, 0.1s 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, 0.3s 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...