/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_NONE.epf -i ../../../trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:32:53,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:32:53,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:32:53,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 01:32:53,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 01:32:53,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 01:32:53,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 01:32:53,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 01:32:53,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 01:32:53,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 01:32:53,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 01:32:53,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 01:32:53,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:32:53,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:32:53,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:32:53,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:32:53,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:32:53,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:32:53,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:32:53,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:32:53,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:32:53,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:32:53,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:32:53,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:32:53,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 01:32:53,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 01:32:53,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 01:32:53,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 01:32:53,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 01:32:53,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 01:32:53,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 01:32:53,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 01:32:53,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 01:32:53,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 01:32:53,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 01:32:53,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 01:32:53,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 01:32:53,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 01:32:53,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:32:53,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:32:53,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:32:53,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 01:32:53,849 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:32:53,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:32:53,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:32:53,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:32:53,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:32:53,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:32:53,851 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:32:53,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:32:53,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:32:53,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:32:53,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:32:53,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:32:53,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:32:53,853 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:32:53,853 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:32:53,853 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:32:53,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:32:53,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:32:53,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:32:53,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:32:53,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:32:53,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:32:53,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:32:53,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:32:53,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:32:53,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:32:53,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:32:53,855 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:32:53,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:32:53,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:32:53,856 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:32:53,856 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:32:53,857 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:32:53,857 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:32:54,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:32:54,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:32:54,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:32:54,117 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:32:54,117 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:32:54,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label04.c [2022-01-11 01:32:54,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ac211eec/194ee2f8d11a47df88c202bcabd87a95/FLAGfca9de3a9 [2022-01-11 01:32:54,846 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:32:54,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label04.c [2022-01-11 01:32:54,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ac211eec/194ee2f8d11a47df88c202bcabd87a95/FLAGfca9de3a9 [2022-01-11 01:32:54,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ac211eec/194ee2f8d11a47df88c202bcabd87a95 [2022-01-11 01:32:54,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:32:54,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:32:54,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:32:54,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:32:54,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:32:54,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:32:54" (1/1) ... [2022-01-11 01:32:54,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1956095c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:54, skipping insertion in model container [2022-01-11 01:32:54,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:32:54" (1/1) ... [2022-01-11 01:32:54,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:32:55,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:32:55,455 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.5.1.ufo.BOUNDED-10.pals+Problem12_label04.c[11677,11690] [2022-01-11 01:32:55,516 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.5.1.ufo.BOUNDED-10.pals+Problem12_label04.c[18738,18751] [2022-01-11 01:32:56,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:32:56,230 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:32:56,265 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.5.1.ufo.BOUNDED-10.pals+Problem12_label04.c[11677,11690] [2022-01-11 01:32:56,274 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.5.1.ufo.BOUNDED-10.pals+Problem12_label04.c[18738,18751] [2022-01-11 01:32:56,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:32:56,677 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:32:56,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:56 WrapperNode [2022-01-11 01:32:56,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:32:56,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:32:56,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:32:56,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:32:56,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:56" (1/1) ... [2022-01-11 01:32:56,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:56" (1/1) ... [2022-01-11 01:32:56,879 INFO L137 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5066 [2022-01-11 01:32:56,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:32:56,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:32:56,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:32:56,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:32:56,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:56" (1/1) ... [2022-01-11 01:32:56,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:56" (1/1) ... [2022-01-11 01:32:56,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:56" (1/1) ... [2022-01-11 01:32:56,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:56" (1/1) ... [2022-01-11 01:32:57,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:56" (1/1) ... [2022-01-11 01:32:57,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:56" (1/1) ... [2022-01-11 01:32:57,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:56" (1/1) ... [2022-01-11 01:32:57,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:32:57,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:32:57,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:32:57,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:32:57,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:56" (1/1) ... [2022-01-11 01:32:57,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:32:57,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:32:57,141 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 01:32:57,160 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 01:32:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:32:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:32:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:32:57,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:32:57,290 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:32:57,304 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:33:22,477 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:33:22,496 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:33:22,496 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 01:33:22,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:33:22 BoogieIcfgContainer [2022-01-11 01:33:22,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:33:22,500 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:33:22,500 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:33:22,501 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:33:22,505 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:33:22" (1/1) ... [2022-01-11 01:33:23,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:33:23 BasicIcfg [2022-01-11 01:33:23,878 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:33:23,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:33:23,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:33:23,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:33:23,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:32:54" (1/4) ... [2022-01-11 01:33:23,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5e0dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:33:23, skipping insertion in model container [2022-01-11 01:33:23,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:32:56" (2/4) ... [2022-01-11 01:33:23,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5e0dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:33:23, skipping insertion in model container [2022-01-11 01:33:23,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:33:22" (3/4) ... [2022-01-11 01:33:23,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5e0dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:33:23, skipping insertion in model container [2022-01-11 01:33:23,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:33:23" (4/4) ... [2022-01-11 01:33:23,886 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label04.cTransformedIcfg [2022-01-11 01:33:23,899 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:33:23,899 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 01:33:23,948 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:33:23,955 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 01:33:23,956 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 01:33:23,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 909 states, 906 states have (on average 1.900662251655629) internal successors, (1722), 908 states have internal predecessors, (1722), 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 01:33:23,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-11 01:33:23,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:33:23,999 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] [2022-01-11 01:33:24,000 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:33:24,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:33:24,004 INFO L85 PathProgramCache]: Analyzing trace with hash 402591773, now seen corresponding path program 1 times [2022-01-11 01:33:24,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:33:24,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83413316] [2022-01-11 01:33:24,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:33:24,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:33:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:33:24,302 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 01:33:24,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:33:24,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83413316] [2022-01-11 01:33:24,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83413316] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:33:24,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:33:24,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:33:24,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458332585] [2022-01-11 01:33:24,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:33:24,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 01:33:24,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:33:24,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 01:33:24,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 01:33:24,335 INFO L87 Difference]: Start difference. First operand has 909 states, 906 states have (on average 1.900662251655629) internal successors, (1722), 908 states have internal predecessors, (1722), 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 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 01:33:24,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:33:24,464 INFO L93 Difference]: Finished difference Result 1781 states and 3374 transitions. [2022-01-11 01:33:24,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 01:33:24,466 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 34 [2022-01-11 01:33:24,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:33:24,491 INFO L225 Difference]: With dead ends: 1781 [2022-01-11 01:33:24,491 INFO L226 Difference]: Without dead ends: 843 [2022-01-11 01:33:24,499 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 01:33:24,504 INFO L933 BasicCegarLoop]: 1656 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, 1656 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 01:33:24,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:33:24,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2022-01-11 01:33:24,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2022-01-11 01:33:24,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 841 states have (on average 1.8894173602853745) internal successors, (1589), 842 states have internal predecessors, (1589), 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 01:33:24,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1589 transitions. [2022-01-11 01:33:24,588 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1589 transitions. Word has length 34 [2022-01-11 01:33:24,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:33:24,589 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1589 transitions. [2022-01-11 01:33:24,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 01:33:24,590 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1589 transitions. [2022-01-11 01:33:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-11 01:33:24,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:33:24,595 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] [2022-01-11 01:33:24,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:33:24,596 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:33:24,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:33:24,597 INFO L85 PathProgramCache]: Analyzing trace with hash 147855228, now seen corresponding path program 1 times [2022-01-11 01:33:24,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:33:24,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691267074] [2022-01-11 01:33:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:33:24,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:33:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:33:24,968 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 01:33:24,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:33:24,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691267074] [2022-01-11 01:33:24,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691267074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:33:24,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:33:24,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:33:24,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373238426] [2022-01-11 01:33:24,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:33:24,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:33:24,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:33:24,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:33:24,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:33:24,977 INFO L87 Difference]: Start difference. First operand 843 states and 1589 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 01:33:25,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:33:25,122 INFO L93 Difference]: Finished difference Result 899 states and 1675 transitions. [2022-01-11 01:33:25,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 01:33:25,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 34 [2022-01-11 01:33:25,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:33:25,126 INFO L225 Difference]: With dead ends: 899 [2022-01-11 01:33:25,127 INFO L226 Difference]: Without dead ends: 843 [2022-01-11 01:33:25,128 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 01:33:25,129 INFO L933 BasicCegarLoop]: 1587 mSDtfsCounter, 3 mSDsluCounter, 4727 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6314 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:33:25,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 6314 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:33:25,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2022-01-11 01:33:25,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2022-01-11 01:33:25,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 841 states have (on average 1.8525564803804995) internal successors, (1558), 842 states have internal predecessors, (1558), 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 01:33:25,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1558 transitions. [2022-01-11 01:33:25,150 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1558 transitions. Word has length 34 [2022-01-11 01:33:25,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:33:25,150 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1558 transitions. [2022-01-11 01:33:25,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 01:33:25,152 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1558 transitions. [2022-01-11 01:33:25,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 01:33:25,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:33:25,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:33:25,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:33:25,164 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:33:25,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:33:25,164 INFO L85 PathProgramCache]: Analyzing trace with hash 634681971, now seen corresponding path program 1 times [2022-01-11 01:33:25,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:33:25,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924382070] [2022-01-11 01:33:25,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:33:25,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:33:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:33:25,352 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 01:33:25,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:33:25,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924382070] [2022-01-11 01:33:25,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924382070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:33:25,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:33:25,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:33:25,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589871117] [2022-01-11 01:33:25,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:33:25,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:33:25,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:33:25,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:33:25,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:33:25,355 INFO L87 Difference]: Start difference. First operand 843 states and 1558 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 01:33:27,544 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 01:33:29,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 01:33:31,775 WARN L534 Checker$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 01:33:33,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 01:33:36,100 WARN L534 Checker$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 01:33:38,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 01:33:40,314 WARN L534 Checker$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 01:33:42,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 01:33:44,604 WARN L534 Checker$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 01:33:46,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 01:33:48,870 WARN L534 Checker$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 01:33:51,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 01:33:53,169 WARN L534 Checker$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 01:33:55,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 01:33:57,472 WARN L534 Checker$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 01:33:59,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 01:34:01,762 WARN L534 Checker$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 01:34:03,897 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 []