/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:35:05,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:35:05,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:35:05,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:35:05,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:35:05,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:35:05,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:35:05,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:35:05,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:35:05,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:35:05,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:35:05,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:35:05,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:35:05,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:35:05,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:35:05,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:35:05,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:35:05,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:35:05,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:35:05,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:35:05,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:35:05,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:35:05,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:35:05,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:35:05,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 07:35:05,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 07:35:05,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 07:35:05,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 07:35:05,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 07:35:05,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 07:35:05,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:35:05,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:35:05,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:35:05,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:35:05,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:35:05,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:35:05,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:35:05,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:35:05,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:35:05,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:35:05,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:35:05,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 07:35:05,903 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:35:05,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:35:05,903 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:35:05,903 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:35:05,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:35:05,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:35:05,904 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:35:05,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:35:05,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:35:05,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:35:05,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:35:05,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:35:05,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:35:05,906 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:35:05,906 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:35:05,906 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:35:05,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:35:05,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:35:05,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:35:05,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:35:05,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:35:05,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:35:05,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:35:05,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:35:05,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:35:05,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:35:05,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:35:05,908 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:35:05,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:35:05,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:35:05,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:35:05,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:35:05,909 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:35:05,909 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:35:06,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:35:06,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:35:06,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:35:06,110 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:35:06,111 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:35:06,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label01.c [2022-01-11 07:35:06,156 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27bdf42ca/632ca8aa83f444469764197f95764f35/FLAGab0b44c77 [2022-01-11 07:35:06,717 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:35:06,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label01.c [2022-01-11 07:35:06,746 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27bdf42ca/632ca8aa83f444469764197f95764f35/FLAGab0b44c77 [2022-01-11 07:35:06,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27bdf42ca/632ca8aa83f444469764197f95764f35 [2022-01-11 07:35:06,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:35:06,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:35:06,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:35:06,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:35:06,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:35:06,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:35:06" (1/1) ... [2022-01-11 07:35:06,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782aa7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:06, skipping insertion in model container [2022-01-11 07:35:06,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:35:06" (1/1) ... [2022-01-11 07:35:06,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:35:06,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:35:07,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label01.c[26860,26873] [2022-01-11 07:35:07,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label01.c[32415,32428] [2022-01-11 07:35:07,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:35:07,908 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:35:07,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label01.c[26860,26873] [2022-01-11 07:35:07,954 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label01.c[32415,32428] [2022-01-11 07:35:08,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:35:08,301 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:35:08,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:08 WrapperNode [2022-01-11 07:35:08,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:35:08,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:35:08,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:35:08,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:35:08,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:08" (1/1) ... [2022-01-11 07:35:08,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:08" (1/1) ... [2022-01-11 07:35:08,507 INFO L137 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5247 [2022-01-11 07:35:08,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:35:08,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:35:08,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:35:08,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:35:08,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:08" (1/1) ... [2022-01-11 07:35:08,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:08" (1/1) ... [2022-01-11 07:35:08,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:08" (1/1) ... [2022-01-11 07:35:08,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:08" (1/1) ... [2022-01-11 07:35:08,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:08" (1/1) ... [2022-01-11 07:35:08,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:08" (1/1) ... [2022-01-11 07:35:08,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:08" (1/1) ... [2022-01-11 07:35:08,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:35:08,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:35:08,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:35:08,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:35:08,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:08" (1/1) ... [2022-01-11 07:35:08,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:35:08,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:35:08,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 07:35:08,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:35:08,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:35:08,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:35:08,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:35:08,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 07:35:08,961 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:35:08,969 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:35:29,260 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:35:29,273 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:35:29,273 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 07:35:29,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:35:29 BoogieIcfgContainer [2022-01-11 07:35:29,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:35:29,276 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:35:29,276 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:35:29,277 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:35:29,279 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:35:29" (1/1) ... [2022-01-11 07:35:30,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:35:30 BasicIcfg [2022-01-11 07:35:30,358 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:35:30,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:35:30,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:35:30,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:35:30,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:35:06" (1/4) ... [2022-01-11 07:35:30,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64aa32e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:35:30, skipping insertion in model container [2022-01-11 07:35:30,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:35:08" (2/4) ... [2022-01-11 07:35:30,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64aa32e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:35:30, skipping insertion in model container [2022-01-11 07:35:30,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:35:29" (3/4) ... [2022-01-11 07:35:30,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64aa32e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:35:30, skipping insertion in model container [2022-01-11 07:35:30,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:35:30" (4/4) ... [2022-01-11 07:35:30,370 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label01.cTransformedIcfg [2022-01-11 07:35:30,375 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:35:30,376 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 07:35:30,415 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:35:30,421 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 07:35:30,421 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 07:35:30,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 963 states, 960 states have (on average 1.896875) internal successors, (1821), 962 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:35:30,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 07:35:30,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:35:30,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:35:30,458 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:35:30,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:35:30,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1101007724, now seen corresponding path program 1 times [2022-01-11 07:35:30,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:35:30,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339307258] [2022-01-11 07:35:30,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:35:30,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:35:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:35:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:35:30,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:35:30,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339307258] [2022-01-11 07:35:30,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339307258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:35:30,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:35:30,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:35:30,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996196931] [2022-01-11 07:35:30,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:35:30,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 07:35:30,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:35:30,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 07:35:30,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 07:35:30,721 INFO L87 Difference]: Start difference. First operand has 963 states, 960 states have (on average 1.896875) internal successors, (1821), 962 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:35:30,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:35:30,769 INFO L93 Difference]: Finished difference Result 1859 states and 3512 transitions. [2022-01-11 07:35:30,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 07:35:30,770 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-01-11 07:35:30,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:35:30,784 INFO L225 Difference]: With dead ends: 1859 [2022-01-11 07:35:30,785 INFO L226 Difference]: Without dead ends: 897 [2022-01-11 07:35:30,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 07:35:30,792 INFO L933 BasicCegarLoop]: 1755 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:35:30,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:35:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-01-11 07:35:30,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 897. [2022-01-11 07:35:30,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 895 states have (on average 1.8860335195530726) internal successors, (1688), 896 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:35:30,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1688 transitions. [2022-01-11 07:35:30,844 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1688 transitions. Word has length 46 [2022-01-11 07:35:30,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:35:30,845 INFO L470 AbstractCegarLoop]: Abstraction has 897 states and 1688 transitions. [2022-01-11 07:35:30,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:35:30,845 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1688 transitions. [2022-01-11 07:35:30,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 07:35:30,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:35:30,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:35:30,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:35:30,847 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:35:30,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:35:30,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1732379573, now seen corresponding path program 1 times [2022-01-11 07:35:30,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:35:30,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765781029] [2022-01-11 07:35:30,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:35:30,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:35:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:35:31,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:35:31,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:35:31,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765781029] [2022-01-11 07:35:31,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765781029] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:35:31,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:35:31,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:35:31,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29166967] [2022-01-11 07:35:31,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:35:31,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:35:31,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:35:31,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:35:31,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:35:31,032 INFO L87 Difference]: Start difference. First operand 897 states and 1688 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:35:31,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:35:31,175 INFO L93 Difference]: Finished difference Result 977 states and 1813 transitions. [2022-01-11 07:35:31,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 07:35:31,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-01-11 07:35:31,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:35:31,179 INFO L225 Difference]: With dead ends: 977 [2022-01-11 07:35:31,179 INFO L226 Difference]: Without dead ends: 897 [2022-01-11 07:35:31,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:35:31,180 INFO L933 BasicCegarLoop]: 1686 mSDtfsCounter, 3 mSDsluCounter, 4994 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6680 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:35:31,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 6680 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:35:31,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-01-11 07:35:31,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 897. [2022-01-11 07:35:31,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 895 states have (on average 1.817877094972067) internal successors, (1627), 896 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:35:31,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1627 transitions. [2022-01-11 07:35:31,196 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1627 transitions. Word has length 46 [2022-01-11 07:35:31,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:35:31,196 INFO L470 AbstractCegarLoop]: Abstraction has 897 states and 1627 transitions. [2022-01-11 07:35:31,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:35:31,196 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1627 transitions. [2022-01-11 07:35:31,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-11 07:35:31,197 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:35:31,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:35:31,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:35:31,198 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:35:31,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:35:31,198 INFO L85 PathProgramCache]: Analyzing trace with hash 267848753, now seen corresponding path program 1 times [2022-01-11 07:35:31,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:35:31,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67479320] [2022-01-11 07:35:31,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:35:31,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:35:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:35:31,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:35:31,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:35:31,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67479320] [2022-01-11 07:35:31,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67479320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:35:31,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:35:31,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:35:31,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912947914] [2022-01-11 07:35:31,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:35:31,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:35:31,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:35:31,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:35:31,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:35:31,330 INFO L87 Difference]: Start difference. First operand 897 states and 1627 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:35:33,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:35:35,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:35:37,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:35:40,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:35:42,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:35:44,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:35:46,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:35:48,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:35:50,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:35:53,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:35:55,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:35:57,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:35:59,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:36:01,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:36:03,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:36:05,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:36:08,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:36:10,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:36:12,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:36:14,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:36:16,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:36:18,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:36:21,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 07:36:23,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []