./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem19_label32.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem19_label32.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 945da3531442ca75d7daec1419723c023475934380c17b86b02d54eed69aad3f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:04:29,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:04:29,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:04:29,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:04:29,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:04:29,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:04:29,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:04:29,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:04:29,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:04:29,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:04:29,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:04:29,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:04:29,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:04:29,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:04:29,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:04:29,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:04:29,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:04:29,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:04:29,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:04:29,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:04:29,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:04:29,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:04:29,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:04:29,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:04:29,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:04:29,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:04:29,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:04:29,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:04:29,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:04:29,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:04:29,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:04:29,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:04:29,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:04:29,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:04:29,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:04:29,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:04:29,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:04:29,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:04:29,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:04:29,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:04:29,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:04:29,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:04:29,750 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:04:29,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:04:29,756 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:04:29,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:04:29,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:04:29,757 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:04:29,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:04:29,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:04:29,757 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:04:29,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:04:29,758 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:04:29,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:04:29,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:04:29,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:04:29,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:04:29,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:04:29,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:04:29,759 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:04:29,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:04:29,760 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:04:29,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:04:29,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:04:29,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:04:29,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:04:29,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:04:29,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:04:29,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:04:29,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:04:29,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:04:29,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:04:29,762 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:04:29,762 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:04:29,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:04:29,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 945da3531442ca75d7daec1419723c023475934380c17b86b02d54eed69aad3f [2022-02-20 16:04:29,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:04:29,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:04:29,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:04:29,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:04:29,984 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:04:29,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem19_label32.c [2022-02-20 16:04:30,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13252620d/1d900ba6a54c451cb288754313fcb1d9/FLAG03c3727c9 [2022-02-20 16:04:30,689 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:04:30,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label32.c [2022-02-20 16:04:30,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13252620d/1d900ba6a54c451cb288754313fcb1d9/FLAG03c3727c9 [2022-02-20 16:04:31,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13252620d/1d900ba6a54c451cb288754313fcb1d9 [2022-02-20 16:04:31,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:04:31,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:04:31,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:04:31,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:04:31,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:04:31,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:04:31" (1/1) ... [2022-02-20 16:04:31,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a06329a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:31, skipping insertion in model container [2022-02-20 16:04:31,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:04:31" (1/1) ... [2022-02-20 16:04:31,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:04:31,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:04:31,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label32.c[2877,2890] [2022-02-20 16:04:32,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:04:32,325 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:04:32,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label32.c[2877,2890] [2022-02-20 16:04:32,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:04:32,934 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:04:32,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:32 WrapperNode [2022-02-20 16:04:32,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:04:32,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:04:32,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:04:32,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:04:32,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:32" (1/1) ... [2022-02-20 16:04:33,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:32" (1/1) ... [2022-02-20 16:04:33,755 INFO L137 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9425 [2022-02-20 16:04:33,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:04:33,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:04:33,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:04:33,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:04:33,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:32" (1/1) ... [2022-02-20 16:04:33,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:32" (1/1) ... [2022-02-20 16:04:33,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:32" (1/1) ... [2022-02-20 16:04:33,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:32" (1/1) ... [2022-02-20 16:04:34,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:32" (1/1) ... [2022-02-20 16:04:34,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:32" (1/1) ... [2022-02-20 16:04:34,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:32" (1/1) ... [2022-02-20 16:04:34,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:04:34,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:04:34,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:04:34,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:04:34,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:32" (1/1) ... [2022-02-20 16:04:34,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:04:34,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:04:34,435 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) [2022-02-20 16:04:34,436 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 [2022-02-20 16:04:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:04:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:04:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:04:34,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:04:34,508 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:04:34,509 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:04:47,952 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:04:47,982 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:04:47,984 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 16:04:47,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:04:47 BoogieIcfgContainer [2022-02-20 16:04:47,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:04:47,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:04:47,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:04:47,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:04:47,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:04:31" (1/3) ... [2022-02-20 16:04:47,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1030508e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:04:47, skipping insertion in model container [2022-02-20 16:04:47,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:04:32" (2/3) ... [2022-02-20 16:04:47,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1030508e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:04:47, skipping insertion in model container [2022-02-20 16:04:47,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:04:47" (3/3) ... [2022-02-20 16:04:47,995 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem19_label32.c [2022-02-20 16:04:47,999 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:04:47,999 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:04:48,049 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:04:48,060 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 [2022-02-20 16:04:48,061 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:04:48,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 1748 states, 1746 states have (on average 1.8699885452462772) internal successors, (3265), 1747 states have internal predecessors, (3265), 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) [2022-02-20 16:04:48,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-02-20 16:04:48,115 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:04:48,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:04:48,116 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:04:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:04:48,122 INFO L85 PathProgramCache]: Analyzing trace with hash 406614337, now seen corresponding path program 1 times [2022-02-20 16:04:48,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:04:48,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939529407] [2022-02-20 16:04:48,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:04:48,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:04:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:04:48,315 INFO L290 TraceCheckUtils]: 0: Hoare triple {1751#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3);~inputA~0 := 1;~inputF~0 := 6;~inputC~0 := 3;~inputE~0 := 5;~inputD~0 := 4;~inputB~0 := 2;~a27~0 := -83;~a9~0 := 3;~a14~0 := -162;~a21~0 := -189;~a8~0 := 7; {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,316 INFO L290 TraceCheckUtils]: 1: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~ret17#1, main_~input~0#1, main_~output~0#1;main_~output~0#1 := -1; {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,316 INFO L290 TraceCheckUtils]: 2: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !false;havoc main_~input~0#1;assume -2147483648 <= main_#t~nondet16#1 && main_#t~nondet16#1 <= 2147483647;main_~input~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,317 INFO L290 TraceCheckUtils]: 3: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !(((((1 != main_~input~0#1 && 2 != main_~input~0#1) && 3 != main_~input~0#1) && 4 != main_~input~0#1) && 5 != main_~input~0#1) && 6 != main_~input~0#1);assume { :begin_inline_calculate_output } true;calculate_output_#in~input#1 := main_~input~0#1;havoc calculate_output_#res#1;havoc calculate_output_#t~ret11#1, calculate_output_~input#1;calculate_output_~input#1 := calculate_output_#in~input#1; {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,318 INFO L290 TraceCheckUtils]: 4: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 4 == ~a9~0) && ~a21~0 <= -178); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,318 INFO L290 TraceCheckUtils]: 5: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 3 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,319 INFO L290 TraceCheckUtils]: 6: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 5 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,319 INFO L290 TraceCheckUtils]: 7: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 5 == ~a9~0) && ~a21~0 <= -178); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,320 INFO L290 TraceCheckUtils]: 8: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 5 == ~a9~0) && 5 < ~a21~0); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,320 INFO L290 TraceCheckUtils]: 9: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 6 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,321 INFO L290 TraceCheckUtils]: 10: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 2 == ~a9~0) && 5 < ~a21~0); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,322 INFO L290 TraceCheckUtils]: 11: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 6 == ~a9~0) && 5 < ~a21~0); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,325 INFO L290 TraceCheckUtils]: 12: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 3 == ~a9~0) && 5 < ~a21~0); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,326 INFO L290 TraceCheckUtils]: 13: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 4 == ~a9~0) && ~a21~0 <= -178); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,327 INFO L290 TraceCheckUtils]: 14: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 4 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,327 INFO L290 TraceCheckUtils]: 15: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 4 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,328 INFO L290 TraceCheckUtils]: 16: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 4 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {1753#(<= (+ ~a21~0 189) 0)} is VALID [2022-02-20 16:04:48,328 INFO L290 TraceCheckUtils]: 17: Hoare triple {1753#(<= (+ ~a21~0 189) 0)} assume (((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 5 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0; {1752#false} is VALID [2022-02-20 16:04:48,329 INFO L290 TraceCheckUtils]: 18: Hoare triple {1752#false} assume !false; {1752#false} is VALID [2022-02-20 16:04:48,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:04:48,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:04:48,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939529407] [2022-02-20 16:04:48,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939529407] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:04:48,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:04:48,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:04:48,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405934478] [2022-02-20 16:04:48,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:04:48,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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 19 [2022-02-20 16:04:48,342 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:04:48,344 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-02-20 16:04:48,363 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:04:48,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 16:04:48,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:04:48,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 16:04:48,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 16:04:48,390 INFO L87 Difference]: Start difference. First operand has 1748 states, 1746 states have (on average 1.8699885452462772) internal successors, (3265), 1747 states have internal predecessors, (3265), 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 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-02-20 16:05:00,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:05:00,715 INFO L93 Difference]: Finished difference Result 4957 states and 9398 transitions. [2022-02-20 16:05:00,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 16:05:00,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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 19 [2022-02-20 16:05:00,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:05:00,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-02-20 16:05:00,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9398 transitions. [2022-02-20 16:05:00,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-02-20 16:05:00,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9398 transitions. [2022-02-20 16:05:00,809 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 9398 transitions. [2022-02-20 16:05:07,781 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 9398 edges. 9398 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:05:08,198 INFO L225 Difference]: With dead ends: 4957 [2022-02-20 16:05:08,198 INFO L226 Difference]: Without dead ends: 3129 [2022-02-20 16:05:08,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 16:05:08,207 INFO L933 BasicCegarLoop]: 1373 mSDtfsCounter, 1607 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 4344 mSolverCounterSat, 1517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 5861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1517 IncrementalHoareTripleChecker+Valid, 4344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:05:08,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1607 Valid, 1595 Invalid, 5861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1517 Valid, 4344 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-02-20 16:05:08,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2022-02-20 16:05:08,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 3108. [2022-02-20 16:05:08,302 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:05:08,312 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3129 states. Second operand has 3108 states, 3107 states have (on average 1.6012230447376892) internal successors, (4975), 3107 states have internal predecessors, (4975), 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) [2022-02-20 16:05:08,318 INFO L74 IsIncluded]: Start isIncluded. First operand 3129 states. Second operand has 3108 states, 3107 states have (on average 1.6012230447376892) internal successors, (4975), 3107 states have internal predecessors, (4975), 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) [2022-02-20 16:05:08,323 INFO L87 Difference]: Start difference. First operand 3129 states. Second operand has 3108 states, 3107 states have (on average 1.6012230447376892) internal successors, (4975), 3107 states have internal predecessors, (4975), 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) [2022-02-20 16:05:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:05:08,626 INFO L93 Difference]: Finished difference Result 3129 states and 5017 transitions. [2022-02-20 16:05:08,626 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 5017 transitions. [2022-02-20 16:05:08,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:05:08,636 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:05:08,641 INFO L74 IsIncluded]: Start isIncluded. First operand has 3108 states, 3107 states have (on average 1.6012230447376892) internal successors, (4975), 3107 states have internal predecessors, (4975), 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 3129 states. [2022-02-20 16:05:08,646 INFO L87 Difference]: Start difference. First operand has 3108 states, 3107 states have (on average 1.6012230447376892) internal successors, (4975), 3107 states have internal predecessors, (4975), 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 3129 states. [2022-02-20 16:05:08,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:05:08,930 INFO L93 Difference]: Finished difference Result 3129 states and 5017 transitions. [2022-02-20 16:05:08,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 5017 transitions. [2022-02-20 16:05:08,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:05:08,935 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:05:08,935 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:05:08,935 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:05:08,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 3107 states have (on average 1.6012230447376892) internal successors, (4975), 3107 states have internal predecessors, (4975), 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) [2022-02-20 16:05:09,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 4975 transitions. [2022-02-20 16:05:09,274 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 4975 transitions. Word has length 19 [2022-02-20 16:05:09,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:05:09,274 INFO L470 AbstractCegarLoop]: Abstraction has 3108 states and 4975 transitions. [2022-02-20 16:05:09,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-02-20 16:05:09,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 4975 transitions. [2022-02-20 16:05:09,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-20 16:05:09,279 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:05:09,279 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-02-20 16:05:09,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:05:09,281 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:05:09,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:05:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash -75084164, now seen corresponding path program 1 times [2022-02-20 16:05:09,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:05:09,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119857116] [2022-02-20 16:05:09,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:05:09,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:05:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:05:09,505 INFO L290 TraceCheckUtils]: 0: Hoare triple {16117#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3);~inputA~0 := 1;~inputF~0 := 6;~inputC~0 := 3;~inputE~0 := 5;~inputD~0 := 4;~inputB~0 := 2;~a27~0 := -83;~a9~0 := 3;~a14~0 := -162;~a21~0 := -189;~a8~0 := 7; {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,506 INFO L290 TraceCheckUtils]: 1: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~ret17#1, main_~input~0#1, main_~output~0#1;main_~output~0#1 := -1; {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,506 INFO L290 TraceCheckUtils]: 2: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !false;havoc main_~input~0#1;assume -2147483648 <= main_#t~nondet16#1 && main_#t~nondet16#1 <= 2147483647;main_~input~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,506 INFO L290 TraceCheckUtils]: 3: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !(((((1 != main_~input~0#1 && 2 != main_~input~0#1) && 3 != main_~input~0#1) && 4 != main_~input~0#1) && 5 != main_~input~0#1) && 6 != main_~input~0#1);assume { :begin_inline_calculate_output } true;calculate_output_#in~input#1 := main_~input~0#1;havoc calculate_output_#res#1;havoc calculate_output_#t~ret11#1, calculate_output_~input#1;calculate_output_~input#1 := calculate_output_#in~input#1; {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,507 INFO L290 TraceCheckUtils]: 4: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 4 == ~a9~0) && ~a21~0 <= -178); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,507 INFO L290 TraceCheckUtils]: 5: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 3 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,508 INFO L290 TraceCheckUtils]: 6: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 5 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,508 INFO L290 TraceCheckUtils]: 7: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 5 == ~a9~0) && ~a21~0 <= -178); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,509 INFO L290 TraceCheckUtils]: 8: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 5 == ~a9~0) && 5 < ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,509 INFO L290 TraceCheckUtils]: 9: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 6 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,510 INFO L290 TraceCheckUtils]: 10: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 2 == ~a9~0) && 5 < ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,510 INFO L290 TraceCheckUtils]: 11: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 6 == ~a9~0) && 5 < ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,511 INFO L290 TraceCheckUtils]: 12: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 3 == ~a9~0) && 5 < ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,512 INFO L290 TraceCheckUtils]: 13: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 4 == ~a9~0) && ~a21~0 <= -178); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,512 INFO L290 TraceCheckUtils]: 14: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 4 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,513 INFO L290 TraceCheckUtils]: 15: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 4 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,513 INFO L290 TraceCheckUtils]: 16: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 4 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,514 INFO L290 TraceCheckUtils]: 17: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 5 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,514 INFO L290 TraceCheckUtils]: 18: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 3 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,515 INFO L290 TraceCheckUtils]: 19: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 2 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,515 INFO L290 TraceCheckUtils]: 20: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 6 == ~a9~0) && ~a21~0 <= -178); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,516 INFO L290 TraceCheckUtils]: 21: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 6 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,516 INFO L290 TraceCheckUtils]: 22: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 2 == ~a9~0) && ~a21~0 <= -178); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,517 INFO L290 TraceCheckUtils]: 23: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 7 == ~a8~0) && 2 == ~a9~0) && ~a21~0 <= -178); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,518 INFO L290 TraceCheckUtils]: 24: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 4 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,519 INFO L290 TraceCheckUtils]: 25: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 5 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,519 INFO L290 TraceCheckUtils]: 26: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 2 == ~a9~0) && ~a21~0 <= -178); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,520 INFO L290 TraceCheckUtils]: 27: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 5 == ~a9~0) && ~a21~0 <= -178); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,520 INFO L290 TraceCheckUtils]: 28: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 6 == ~a9~0) && 5 < ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,521 INFO L290 TraceCheckUtils]: 29: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 2 == ~a9~0) && ~a21~0 <= -178); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,523 INFO L290 TraceCheckUtils]: 30: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 4 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,526 INFO L290 TraceCheckUtils]: 31: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 4 == ~a9~0) && 5 < ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,526 INFO L290 TraceCheckUtils]: 32: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 2 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,527 INFO L290 TraceCheckUtils]: 33: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 6 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,527 INFO L290 TraceCheckUtils]: 34: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 3 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,528 INFO L290 TraceCheckUtils]: 35: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 6 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,528 INFO L290 TraceCheckUtils]: 36: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 5 == ~a9~0) && 5 < ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,529 INFO L290 TraceCheckUtils]: 37: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 3 == ~a9~0) && 5 < ~a21~0); {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} is VALID [2022-02-20 16:05:09,530 INFO L290 TraceCheckUtils]: 38: Hoare triple {16119#(and (<= (+ ~a21~0 189) 0) (= 3 ~a9~0) (<= (+ ~a27~0 83) 0) (<= (+ ~a14~0 162) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 3 == ~a9~0) && ~a21~0 <= -178); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,530 INFO L290 TraceCheckUtils]: 39: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 6 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,530 INFO L290 TraceCheckUtils]: 40: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 2 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,531 INFO L290 TraceCheckUtils]: 41: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 3 == ~a9~0) && ~a21~0 <= -178); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,531 INFO L290 TraceCheckUtils]: 42: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 5 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,532 INFO L290 TraceCheckUtils]: 43: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 2 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,532 INFO L290 TraceCheckUtils]: 44: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 3 == ~a9~0) && ~a21~0 <= -178); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,533 INFO L290 TraceCheckUtils]: 45: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 3 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,533 INFO L290 TraceCheckUtils]: 46: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 3 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,534 INFO L290 TraceCheckUtils]: 47: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 2 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,534 INFO L290 TraceCheckUtils]: 48: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 2 == ~a9~0) && 5 < ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,534 INFO L290 TraceCheckUtils]: 49: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 4 == ~a9~0) && 5 < ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,535 INFO L290 TraceCheckUtils]: 50: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 6 == ~a9~0) && ~a21~0 <= -178); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,536 INFO L290 TraceCheckUtils]: 51: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 4 == ~a9~0) && 5 < ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,536 INFO L290 TraceCheckUtils]: 52: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 4 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,536 INFO L290 TraceCheckUtils]: 53: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 5 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,537 INFO L290 TraceCheckUtils]: 54: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 5 == ~a9~0) && 5 < ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,537 INFO L290 TraceCheckUtils]: 55: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 6 == ~a9~0) && ~a21~0 <= -178); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,538 INFO L290 TraceCheckUtils]: 56: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 3 == ~a9~0) && 5 < ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,538 INFO L290 TraceCheckUtils]: 57: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 6 == ~a9~0) && 5 < ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,539 INFO L290 TraceCheckUtils]: 58: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 3 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,539 INFO L290 TraceCheckUtils]: 59: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 5 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,539 INFO L290 TraceCheckUtils]: 60: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 2 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,540 INFO L290 TraceCheckUtils]: 61: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 4 == ~a9~0) && ~a21~0 <= -178); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,540 INFO L290 TraceCheckUtils]: 62: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 2 == ~a9~0) && 5 < ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,541 INFO L290 TraceCheckUtils]: 63: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 6 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,541 INFO L290 TraceCheckUtils]: 64: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 5 == ~a9~0) && ~a21~0 <= -178); {16120#(not (= (+ ~a8~0 (- 4)) 0))} is VALID [2022-02-20 16:05:09,542 INFO L290 TraceCheckUtils]: 65: Hoare triple {16120#(not (= (+ ~a8~0 (- 4)) 0))} assume ((~a14~0 <= -148 && (2 == calculate_output_~input#1 && ~a21~0 <= -178) && 4 == ~a8~0) && 100 < ~a27~0 && 182 >= ~a27~0) && 3 == ~a9~0; {16118#false} is VALID [2022-02-20 16:05:09,542 INFO L290 TraceCheckUtils]: 66: Hoare triple {16118#false} assume !(6 == ~a9~0);~a27~0 := 89 + (~a27~0 - 173);~a21~0 := 40 + (~a21~0 - -600084);~a8~0 := 5; {16118#false} is VALID [2022-02-20 16:05:09,542 INFO L290 TraceCheckUtils]: 67: Hoare triple {16118#false} calculate_output_#res#1 := 25; {16118#false} is VALID [2022-02-20 16:05:09,542 INFO L290 TraceCheckUtils]: 68: Hoare triple {16118#false} main_#t~ret17#1 := calculate_output_#res#1;assume { :end_inline_calculate_output } true;assume -2147483648 <= main_#t~ret17#1 && main_#t~ret17#1 <= 2147483647;main_~output~0#1 := main_#t~ret17#1;havoc main_#t~ret17#1; {16118#false} is VALID [2022-02-20 16:05:09,542 INFO L290 TraceCheckUtils]: 69: Hoare triple {16118#false} assume !false;havoc main_~input~0#1;assume -2147483648 <= main_#t~nondet16#1 && main_#t~nondet16#1 <= 2147483647;main_~input~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; {16118#false} is VALID [2022-02-20 16:05:09,543 INFO L290 TraceCheckUtils]: 70: Hoare triple {16118#false} assume !(((((1 != main_~input~0#1 && 2 != main_~input~0#1) && 3 != main_~input~0#1) && 4 != main_~input~0#1) && 5 != main_~input~0#1) && 6 != main_~input~0#1);assume { :begin_inline_calculate_output } true;calculate_output_#in~input#1 := main_~input~0#1;havoc calculate_output_#res#1;havoc calculate_output_#t~ret11#1, calculate_output_~input#1;calculate_output_~input#1 := calculate_output_#in~input#1; {16118#false} is VALID [2022-02-20 16:05:09,543 INFO L290 TraceCheckUtils]: 71: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 4 == ~a9~0) && ~a21~0 <= -178); {16118#false} is VALID [2022-02-20 16:05:09,543 INFO L290 TraceCheckUtils]: 72: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 3 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16118#false} is VALID [2022-02-20 16:05:09,547 INFO L290 TraceCheckUtils]: 73: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 5 == ~a9~0) && -178 < ~a21~0 && -144 >= ~a21~0); {16118#false} is VALID [2022-02-20 16:05:09,547 INFO L290 TraceCheckUtils]: 74: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 5 == ~a9~0) && ~a21~0 <= -178); {16118#false} is VALID [2022-02-20 16:05:09,547 INFO L290 TraceCheckUtils]: 75: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 5 == ~a9~0) && 5 < ~a21~0); {16118#false} is VALID [2022-02-20 16:05:09,547 INFO L290 TraceCheckUtils]: 76: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 6 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16118#false} is VALID [2022-02-20 16:05:09,548 INFO L290 TraceCheckUtils]: 77: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 2 == ~a9~0) && 5 < ~a21~0); {16118#false} is VALID [2022-02-20 16:05:09,548 INFO L290 TraceCheckUtils]: 78: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 6 == ~a9~0) && 5 < ~a21~0); {16118#false} is VALID [2022-02-20 16:05:09,548 INFO L290 TraceCheckUtils]: 79: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 3 == ~a9~0) && 5 < ~a21~0); {16118#false} is VALID [2022-02-20 16:05:09,548 INFO L290 TraceCheckUtils]: 80: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 4 == ~a9~0) && ~a21~0 <= -178); {16118#false} is VALID [2022-02-20 16:05:09,548 INFO L290 TraceCheckUtils]: 81: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 4 == ~a8~0) && 4 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16118#false} is VALID [2022-02-20 16:05:09,548 INFO L290 TraceCheckUtils]: 82: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 6 == ~a8~0) && 4 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16118#false} is VALID [2022-02-20 16:05:09,548 INFO L290 TraceCheckUtils]: 83: Hoare triple {16118#false} assume !((((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 4 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0); {16118#false} is VALID [2022-02-20 16:05:09,548 INFO L290 TraceCheckUtils]: 84: Hoare triple {16118#false} assume (((~a14~0 <= -148 && ~a27~0 <= -78) && 5 == ~a8~0) && 5 == ~a9~0) && -144 < ~a21~0 && 5 >= ~a21~0; {16118#false} is VALID [2022-02-20 16:05:09,548 INFO L290 TraceCheckUtils]: 85: Hoare triple {16118#false} assume !false; {16118#false} is VALID [2022-02-20 16:05:09,549 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:05:09,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:05:09,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119857116] [2022-02-20 16:05:09,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119857116] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:05:09,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:05:09,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 16:05:09,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765201852] [2022-02-20 16:05:09,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:05:09,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2022-02-20 16:05:09,551 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:05:09,552 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 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) [2022-02-20 16:05:09,611 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 86 edges. 86 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:05:09,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:05:09,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:05:09,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:05:09,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:05:09,613 INFO L87 Difference]: Start difference. First operand 3108 states and 4975 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 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)