./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label01.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/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label01.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 b034b25c13122a131dcef5e20457a6ebe39c9d7c5637a670f7b0b39a233b1f7a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 19:38:33,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 19:38:33,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 19:38:33,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 19:38:33,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 19:38:33,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 19:38:33,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 19:38:33,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 19:38:33,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 19:38:33,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 19:38:33,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 19:38:33,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 19:38:33,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 19:38:33,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 19:38:33,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 19:38:33,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 19:38:33,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 19:38:33,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 19:38:33,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 19:38:33,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 19:38:33,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 19:38:33,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 19:38:33,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 19:38:33,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 19:38:33,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 19:38:33,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 19:38:33,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 19:38:33,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 19:38:33,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 19:38:33,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 19:38:33,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 19:38:33,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 19:38:33,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 19:38:33,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 19:38:33,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 19:38:33,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 19:38:33,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 19:38:33,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 19:38:33,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 19:38:33,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 19:38:33,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 19:38:33,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 19:38:33,646 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 19:38:33,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 19:38:33,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 19:38:33,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 19:38:33,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 19:38:33,648 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 19:38:33,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 19:38:33,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 19:38:33,648 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 19:38:33,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 19:38:33,649 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 19:38:33,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 19:38:33,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 19:38:33,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 19:38:33,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 19:38:33,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 19:38:33,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 19:38:33,650 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 19:38:33,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 19:38:33,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 19:38:33,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 19:38:33,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 19:38:33,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 19:38:33,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 19:38:33,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:38:33,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 19:38:33,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 19:38:33,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 19:38:33,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 19:38:33,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 19:38:33,652 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 19:38:33,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 19:38:33,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 19:38:33,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b034b25c13122a131dcef5e20457a6ebe39c9d7c5637a670f7b0b39a233b1f7a [2022-02-20 19:38:33,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 19:38:33,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 19:38:33,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 19:38:33,897 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 19:38:33,897 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 19:38:33,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label01.c [2022-02-20 19:38:33,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862e885fc/7e2b184d422643539298140368b3ab08/FLAG710395145 [2022-02-20 19:38:34,509 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 19:38:34,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label01.c [2022-02-20 19:38:34,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862e885fc/7e2b184d422643539298140368b3ab08/FLAG710395145 [2022-02-20 19:38:34,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862e885fc/7e2b184d422643539298140368b3ab08 [2022-02-20 19:38:34,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 19:38:34,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 19:38:34,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 19:38:34,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 19:38:34,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 19:38:34,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:38:34" (1/1) ... [2022-02-20 19:38:34,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fffb097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:34, skipping insertion in model container [2022-02-20 19:38:34,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:38:34" (1/1) ... [2022-02-20 19:38:34,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 19:38:35,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 19:38:35,232 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/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label01.c[6354,6367] [2022-02-20 19:38:35,275 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/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label01.c[11909,11922] [2022-02-20 19:38:35,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:38:35,768 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 19:38:35,789 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/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label01.c[6354,6367] [2022-02-20 19:38:35,796 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/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label01.c[11909,11922] [2022-02-20 19:38:36,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 19:38:36,142 INFO L208 MainTranslator]: Completed translation [2022-02-20 19:38:36,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:36 WrapperNode [2022-02-20 19:38:36,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 19:38:36,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 19:38:36,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 19:38:36,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 19:38:36,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:36" (1/1) ... [2022-02-20 19:38:36,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:36" (1/1) ... [2022-02-20 19:38:36,605 INFO L137 Inliner]: procedures = 33, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 4976 [2022-02-20 19:38:36,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 19:38:36,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 19:38:36,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 19:38:36,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 19:38:36,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:36" (1/1) ... [2022-02-20 19:38:36,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:36" (1/1) ... [2022-02-20 19:38:36,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:36" (1/1) ... [2022-02-20 19:38:36,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:36" (1/1) ... [2022-02-20 19:38:36,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:36" (1/1) ... [2022-02-20 19:38:36,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:36" (1/1) ... [2022-02-20 19:38:36,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:36" (1/1) ... [2022-02-20 19:38:36,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 19:38:36,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 19:38:36,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 19:38:36,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 19:38:36,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:36" (1/1) ... [2022-02-20 19:38:36,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 19:38:36,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 19:38:36,992 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 19:38:37,010 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 19:38:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 19:38:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 19:38:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 19:38:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 19:38:37,086 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 19:38:37,087 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 19:38:43,244 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 19:38:43,259 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 19:38:43,261 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-20 19:38:43,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:38:43 BoogieIcfgContainer [2022-02-20 19:38:43,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 19:38:43,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 19:38:43,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 19:38:43,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 19:38:43,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 07:38:34" (1/3) ... [2022-02-20 19:38:43,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583edf65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:38:43, skipping insertion in model container [2022-02-20 19:38:43,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:38:36" (2/3) ... [2022-02-20 19:38:43,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583edf65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:38:43, skipping insertion in model container [2022-02-20 19:38:43,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:38:43" (3/3) ... [2022-02-20 19:38:43,273 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label01.c [2022-02-20 19:38:43,277 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 19:38:43,277 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 19:38:43,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 19:38:43,335 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 19:38:43,336 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 19:38:43,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 878 states, 875 states have (on average 1.904) internal successors, (1666), 877 states have internal predecessors, (1666), 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 19:38:43,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-02-20 19:38:43,379 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:38:43,380 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] [2022-02-20 19:38:43,380 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:38:43,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:38:43,384 INFO L85 PathProgramCache]: Analyzing trace with hash 975463267, now seen corresponding path program 1 times [2022-02-20 19:38:43,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:38:43,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169952352] [2022-02-20 19:38:43,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:38:43,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:38:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:38:43,520 INFO L290 TraceCheckUtils]: 0: Hoare triple {881#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(32, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~inputC~0 := 3;~inputF~0 := 6;~inputA~0 := 1;~inputB~0 := 2;~inputD~0 := 4;~inputE~0 := 5;~a17~0 := -124;~a5~0 := 4;~a24~0 := 15;~a2~0 := 170;~a7~0 := 13; {881#true} is VALID [2022-02-20 19:38:43,521 INFO L290 TraceCheckUtils]: 1: Hoare triple {881#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet38#1, main_#t~ret39#1, main_#t~ret40#1;assume -2147483648 <= main_#t~nondet38#1 && main_#t~nondet38#1 <= 2147483647; {881#true} is VALID [2022-02-20 19:38:43,521 INFO L290 TraceCheckUtils]: 2: Hoare triple {881#true} assume 0 != main_#t~nondet38#1;havoc main_#t~nondet38#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet8#1, main1_#t~nondet9#1, main1_#t~nondet10#1, main1_#t~nondet11#1, main1_#t~nondet12#1, main1_#t~nondet13#1, main1_#t~nondet14#1, main1_#t~nondet15#1, main1_#t~nondet16#1, main1_#t~nondet17#1, main1_#t~nondet18#1, main1_#t~nondet19#1, main1_#t~nondet20#1, main1_#t~ret21#1, main1_#t~ret22#1, main1_#t~post23#1, main1_~c1~0#1, main1_~i2~0#1;havoc main1_~c1~0#1;havoc main1_~i2~0#1;main1_~c1~0#1 := 0;assume -128 <= main1_#t~nondet8#1 && main1_#t~nondet8#1 <= 127;~r1~0 := main1_#t~nondet8#1;havoc main1_#t~nondet8#1;assume -128 <= main1_#t~nondet9#1 && main1_#t~nondet9#1 <= 127;~id1~0 := main1_#t~nondet9#1;havoc main1_#t~nondet9#1;assume -128 <= main1_#t~nondet10#1 && main1_#t~nondet10#1 <= 127;~st1~0 := main1_#t~nondet10#1;havoc main1_#t~nondet10#1;assume -128 <= main1_#t~nondet11#1 && main1_#t~nondet11#1 <= 127;~send1~0 := main1_#t~nondet11#1;havoc main1_#t~nondet11#1;~mode1~0 := main1_#t~nondet12#1;havoc main1_#t~nondet12#1;assume -128 <= main1_#t~nondet13#1 && main1_#t~nondet13#1 <= 127;~id2~0 := main1_#t~nondet13#1;havoc main1_#t~nondet13#1;assume -128 <= main1_#t~nondet14#1 && main1_#t~nondet14#1 <= 127;~st2~0 := main1_#t~nondet14#1;havoc main1_#t~nondet14#1;assume -128 <= main1_#t~nondet15#1 && main1_#t~nondet15#1 <= 127;~send2~0 := main1_#t~nondet15#1;havoc main1_#t~nondet15#1;~mode2~0 := main1_#t~nondet16#1;havoc main1_#t~nondet16#1;assume -128 <= main1_#t~nondet17#1 && main1_#t~nondet17#1 <= 127;~id3~0 := main1_#t~nondet17#1;havoc main1_#t~nondet17#1;assume -128 <= main1_#t~nondet18#1 && main1_#t~nondet18#1 <= 127;~st3~0 := main1_#t~nondet18#1;havoc main1_#t~nondet18#1;assume -128 <= main1_#t~nondet19#1 && main1_#t~nondet19#1 <= 127;~send3~0 := main1_#t~nondet19#1;havoc main1_#t~nondet19#1;~mode3~0 := main1_#t~nondet20#1;havoc main1_#t~nondet20#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; {881#true} is VALID [2022-02-20 19:38:43,521 INFO L290 TraceCheckUtils]: 3: Hoare triple {881#true} assume !(0 == ~r1~0);init_~tmp~0#1 := 0; {881#true} is VALID [2022-02-20 19:38:43,521 INFO L290 TraceCheckUtils]: 4: Hoare triple {881#true} init_#res#1 := init_~tmp~0#1; {881#true} is VALID [2022-02-20 19:38:43,522 INFO L290 TraceCheckUtils]: 5: Hoare triple {881#true} main1_#t~ret21#1 := init_#res#1;assume { :end_inline_init } true;assume -2147483648 <= main1_#t~ret21#1 && main1_#t~ret21#1 <= 2147483647;main1_~i2~0#1 := main1_#t~ret21#1;havoc main1_#t~ret21#1; {881#true} is VALID [2022-02-20 19:38:43,522 INFO L290 TraceCheckUtils]: 6: Hoare triple {881#true} assume 0 == main1_~i2~0#1;assume false; {882#false} is VALID [2022-02-20 19:38:43,523 INFO L290 TraceCheckUtils]: 7: Hoare triple {882#false} ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main1_~i2~0#1 := 0; {882#false} is VALID [2022-02-20 19:38:43,523 INFO L290 TraceCheckUtils]: 8: Hoare triple {882#false} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {882#false} is VALID [2022-02-20 19:38:43,523 INFO L290 TraceCheckUtils]: 9: Hoare triple {882#false} assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; {882#false} is VALID [2022-02-20 19:38:43,523 INFO L290 TraceCheckUtils]: 10: Hoare triple {882#false} assume !(node1_~m1~0#1 != ~nomsg~0); {882#false} is VALID [2022-02-20 19:38:43,523 INFO L290 TraceCheckUtils]: 11: Hoare triple {882#false} ~mode1~0 := 0; {882#false} is VALID [2022-02-20 19:38:43,524 INFO L290 TraceCheckUtils]: 12: Hoare triple {882#false} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {882#false} is VALID [2022-02-20 19:38:43,524 INFO L290 TraceCheckUtils]: 13: Hoare triple {882#false} assume !(0 != ~mode2~0 % 256); {882#false} is VALID [2022-02-20 19:38:43,524 INFO L290 TraceCheckUtils]: 14: Hoare triple {882#false} assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite6#1 := ~send2~0; {882#false} is VALID [2022-02-20 19:38:43,524 INFO L290 TraceCheckUtils]: 15: Hoare triple {882#false} ~p2_new~0 := (if node2_#t~ite6#1 % 256 <= 127 then node2_#t~ite6#1 % 256 else node2_#t~ite6#1 % 256 - 256);havoc node2_#t~ite6#1;~mode2~0 := 1; {882#false} is VALID [2022-02-20 19:38:43,524 INFO L290 TraceCheckUtils]: 16: Hoare triple {882#false} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {882#false} is VALID [2022-02-20 19:38:43,525 INFO L290 TraceCheckUtils]: 17: Hoare triple {882#false} assume !(0 != ~mode3~0 % 256); {882#false} is VALID [2022-02-20 19:38:43,525 INFO L290 TraceCheckUtils]: 18: Hoare triple {882#false} assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite7#1 := ~send3~0; {882#false} is VALID [2022-02-20 19:38:43,525 INFO L290 TraceCheckUtils]: 19: Hoare triple {882#false} ~p3_new~0 := (if node3_#t~ite7#1 % 256 <= 127 then node3_#t~ite7#1 % 256 else node3_#t~ite7#1 % 256 - 256);havoc node3_#t~ite7#1;~mode3~0 := 1; {882#false} is VALID [2022-02-20 19:38:43,525 INFO L290 TraceCheckUtils]: 20: Hoare triple {882#false} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {882#false} is VALID [2022-02-20 19:38:43,525 INFO L290 TraceCheckUtils]: 21: Hoare triple {882#false} assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; {882#false} is VALID [2022-02-20 19:38:43,526 INFO L290 TraceCheckUtils]: 22: Hoare triple {882#false} check_#res#1 := check_~tmp~1#1; {882#false} is VALID [2022-02-20 19:38:43,526 INFO L290 TraceCheckUtils]: 23: Hoare triple {882#false} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {882#false} is VALID [2022-02-20 19:38:43,526 INFO L290 TraceCheckUtils]: 24: Hoare triple {882#false} assume 0 == assert_~arg#1 % 256; {882#false} is VALID [2022-02-20 19:38:43,526 INFO L290 TraceCheckUtils]: 25: Hoare triple {882#false} assume !false; {882#false} is VALID [2022-02-20 19:38:43,527 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 19:38:43,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:38:43,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169952352] [2022-02-20 19:38:43,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169952352] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:38:43,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:38:43,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 19:38:43,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516016035] [2022-02-20 19:38:43,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:38:43,533 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2022-02-20 19:38:43,534 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:38:43,536 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 19:38:43,560 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:38:43,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 19:38:43,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:38:43,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 19:38:43,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 19:38:43,578 INFO L87 Difference]: Start difference. First operand has 878 states, 875 states have (on average 1.904) internal successors, (1666), 877 states have internal predecessors, (1666), 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 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 19:38:44,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:38:44,731 INFO L93 Difference]: Finished difference Result 1734 states and 3292 transitions. [2022-02-20 19:38:44,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 19:38:44,732 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2022-02-20 19:38:44,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:38:44,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 19:38:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3292 transitions. [2022-02-20 19:38:44,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 19:38:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3292 transitions. [2022-02-20 19:38:44,778 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 3292 transitions. [2022-02-20 19:38:47,491 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 3292 edges. 3292 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:38:47,562 INFO L225 Difference]: With dead ends: 1734 [2022-02-20 19:38:47,563 INFO L226 Difference]: Without dead ends: 812 [2022-02-20 19:38:47,567 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 [2022-02-20 19:38:47,569 INFO L933 BasicCegarLoop]: 1600 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, 1600 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 [2022-02-20 19:38:47,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1600 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 19:38:47,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2022-02-20 19:38:47,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2022-02-20 19:38:47,637 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:38:47,640 INFO L82 GeneralOperation]: Start isEquivalent. First operand 812 states. Second operand has 812 states, 810 states have (on average 1.8925925925925926) internal successors, (1533), 811 states have internal predecessors, (1533), 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 19:38:47,643 INFO L74 IsIncluded]: Start isIncluded. First operand 812 states. Second operand has 812 states, 810 states have (on average 1.8925925925925926) internal successors, (1533), 811 states have internal predecessors, (1533), 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 19:38:47,646 INFO L87 Difference]: Start difference. First operand 812 states. Second operand has 812 states, 810 states have (on average 1.8925925925925926) internal successors, (1533), 811 states have internal predecessors, (1533), 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 19:38:47,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:38:47,674 INFO L93 Difference]: Finished difference Result 812 states and 1533 transitions. [2022-02-20 19:38:47,674 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1533 transitions. [2022-02-20 19:38:47,677 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:38:47,677 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:38:47,679 INFO L74 IsIncluded]: Start isIncluded. First operand has 812 states, 810 states have (on average 1.8925925925925926) internal successors, (1533), 811 states have internal predecessors, (1533), 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 812 states. [2022-02-20 19:38:47,680 INFO L87 Difference]: Start difference. First operand has 812 states, 810 states have (on average 1.8925925925925926) internal successors, (1533), 811 states have internal predecessors, (1533), 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 812 states. [2022-02-20 19:38:47,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:38:47,706 INFO L93 Difference]: Finished difference Result 812 states and 1533 transitions. [2022-02-20 19:38:47,706 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1533 transitions. [2022-02-20 19:38:47,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:38:47,708 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:38:47,708 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:38:47,708 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:38:47,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 810 states have (on average 1.8925925925925926) internal successors, (1533), 811 states have internal predecessors, (1533), 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 19:38:47,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1533 transitions. [2022-02-20 19:38:47,737 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1533 transitions. Word has length 26 [2022-02-20 19:38:47,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:38:47,737 INFO L470 AbstractCegarLoop]: Abstraction has 812 states and 1533 transitions. [2022-02-20 19:38:47,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 19:38:47,738 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1533 transitions. [2022-02-20 19:38:47,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-02-20 19:38:47,738 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:38:47,739 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] [2022-02-20 19:38:47,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 19:38:47,739 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:38:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:38:47,740 INFO L85 PathProgramCache]: Analyzing trace with hash 157814817, now seen corresponding path program 1 times [2022-02-20 19:38:47,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:38:47,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947148301] [2022-02-20 19:38:47,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:38:47,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:38:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:38:47,798 INFO L290 TraceCheckUtils]: 0: Hoare triple {5094#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(32, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~inputC~0 := 3;~inputF~0 := 6;~inputA~0 := 1;~inputB~0 := 2;~inputD~0 := 4;~inputE~0 := 5;~a17~0 := -124;~a5~0 := 4;~a24~0 := 15;~a2~0 := 170;~a7~0 := 13; {5094#true} is VALID [2022-02-20 19:38:47,798 INFO L290 TraceCheckUtils]: 1: Hoare triple {5094#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet38#1, main_#t~ret39#1, main_#t~ret40#1;assume -2147483648 <= main_#t~nondet38#1 && main_#t~nondet38#1 <= 2147483647; {5094#true} is VALID [2022-02-20 19:38:47,799 INFO L290 TraceCheckUtils]: 2: Hoare triple {5094#true} assume 0 != main_#t~nondet38#1;havoc main_#t~nondet38#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet8#1, main1_#t~nondet9#1, main1_#t~nondet10#1, main1_#t~nondet11#1, main1_#t~nondet12#1, main1_#t~nondet13#1, main1_#t~nondet14#1, main1_#t~nondet15#1, main1_#t~nondet16#1, main1_#t~nondet17#1, main1_#t~nondet18#1, main1_#t~nondet19#1, main1_#t~nondet20#1, main1_#t~ret21#1, main1_#t~ret22#1, main1_#t~post23#1, main1_~c1~0#1, main1_~i2~0#1;havoc main1_~c1~0#1;havoc main1_~i2~0#1;main1_~c1~0#1 := 0;assume -128 <= main1_#t~nondet8#1 && main1_#t~nondet8#1 <= 127;~r1~0 := main1_#t~nondet8#1;havoc main1_#t~nondet8#1;assume -128 <= main1_#t~nondet9#1 && main1_#t~nondet9#1 <= 127;~id1~0 := main1_#t~nondet9#1;havoc main1_#t~nondet9#1;assume -128 <= main1_#t~nondet10#1 && main1_#t~nondet10#1 <= 127;~st1~0 := main1_#t~nondet10#1;havoc main1_#t~nondet10#1;assume -128 <= main1_#t~nondet11#1 && main1_#t~nondet11#1 <= 127;~send1~0 := main1_#t~nondet11#1;havoc main1_#t~nondet11#1;~mode1~0 := main1_#t~nondet12#1;havoc main1_#t~nondet12#1;assume -128 <= main1_#t~nondet13#1 && main1_#t~nondet13#1 <= 127;~id2~0 := main1_#t~nondet13#1;havoc main1_#t~nondet13#1;assume -128 <= main1_#t~nondet14#1 && main1_#t~nondet14#1 <= 127;~st2~0 := main1_#t~nondet14#1;havoc main1_#t~nondet14#1;assume -128 <= main1_#t~nondet15#1 && main1_#t~nondet15#1 <= 127;~send2~0 := main1_#t~nondet15#1;havoc main1_#t~nondet15#1;~mode2~0 := main1_#t~nondet16#1;havoc main1_#t~nondet16#1;assume -128 <= main1_#t~nondet17#1 && main1_#t~nondet17#1 <= 127;~id3~0 := main1_#t~nondet17#1;havoc main1_#t~nondet17#1;assume -128 <= main1_#t~nondet18#1 && main1_#t~nondet18#1 <= 127;~st3~0 := main1_#t~nondet18#1;havoc main1_#t~nondet18#1;assume -128 <= main1_#t~nondet19#1 && main1_#t~nondet19#1 <= 127;~send3~0 := main1_#t~nondet19#1;havoc main1_#t~nondet19#1;~mode3~0 := main1_#t~nondet20#1;havoc main1_#t~nondet20#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; {5094#true} is VALID [2022-02-20 19:38:47,799 INFO L290 TraceCheckUtils]: 3: Hoare triple {5094#true} assume !(0 == ~r1~0);init_~tmp~0#1 := 0; {5096#(= |ULTIMATE.start_init_~tmp~0#1| 0)} is VALID [2022-02-20 19:38:47,800 INFO L290 TraceCheckUtils]: 4: Hoare triple {5096#(= |ULTIMATE.start_init_~tmp~0#1| 0)} init_#res#1 := init_~tmp~0#1; {5097#(= |ULTIMATE.start_init_#res#1| 0)} is VALID [2022-02-20 19:38:47,800 INFO L290 TraceCheckUtils]: 5: Hoare triple {5097#(= |ULTIMATE.start_init_#res#1| 0)} main1_#t~ret21#1 := init_#res#1;assume { :end_inline_init } true;assume -2147483648 <= main1_#t~ret21#1 && main1_#t~ret21#1 <= 2147483647;main1_~i2~0#1 := main1_#t~ret21#1;havoc main1_#t~ret21#1; {5098#(= |ULTIMATE.start_main1_~i2~0#1| 0)} is VALID [2022-02-20 19:38:47,801 INFO L290 TraceCheckUtils]: 6: Hoare triple {5098#(= |ULTIMATE.start_main1_~i2~0#1| 0)} assume !(0 == main1_~i2~0#1); {5095#false} is VALID [2022-02-20 19:38:47,801 INFO L290 TraceCheckUtils]: 7: Hoare triple {5095#false} ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main1_~i2~0#1 := 0; {5095#false} is VALID [2022-02-20 19:38:47,801 INFO L290 TraceCheckUtils]: 8: Hoare triple {5095#false} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {5095#false} is VALID [2022-02-20 19:38:47,801 INFO L290 TraceCheckUtils]: 9: Hoare triple {5095#false} assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; {5095#false} is VALID [2022-02-20 19:38:47,801 INFO L290 TraceCheckUtils]: 10: Hoare triple {5095#false} assume !(node1_~m1~0#1 != ~nomsg~0); {5095#false} is VALID [2022-02-20 19:38:47,802 INFO L290 TraceCheckUtils]: 11: Hoare triple {5095#false} ~mode1~0 := 0; {5095#false} is VALID [2022-02-20 19:38:47,802 INFO L290 TraceCheckUtils]: 12: Hoare triple {5095#false} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {5095#false} is VALID [2022-02-20 19:38:47,802 INFO L290 TraceCheckUtils]: 13: Hoare triple {5095#false} assume !(0 != ~mode2~0 % 256); {5095#false} is VALID [2022-02-20 19:38:47,802 INFO L290 TraceCheckUtils]: 14: Hoare triple {5095#false} assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite6#1 := ~send2~0; {5095#false} is VALID [2022-02-20 19:38:47,802 INFO L290 TraceCheckUtils]: 15: Hoare triple {5095#false} ~p2_new~0 := (if node2_#t~ite6#1 % 256 <= 127 then node2_#t~ite6#1 % 256 else node2_#t~ite6#1 % 256 - 256);havoc node2_#t~ite6#1;~mode2~0 := 1; {5095#false} is VALID [2022-02-20 19:38:47,803 INFO L290 TraceCheckUtils]: 16: Hoare triple {5095#false} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {5095#false} is VALID [2022-02-20 19:38:47,803 INFO L290 TraceCheckUtils]: 17: Hoare triple {5095#false} assume !(0 != ~mode3~0 % 256); {5095#false} is VALID [2022-02-20 19:38:47,803 INFO L290 TraceCheckUtils]: 18: Hoare triple {5095#false} assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite7#1 := ~send3~0; {5095#false} is VALID [2022-02-20 19:38:47,803 INFO L290 TraceCheckUtils]: 19: Hoare triple {5095#false} ~p3_new~0 := (if node3_#t~ite7#1 % 256 <= 127 then node3_#t~ite7#1 % 256 else node3_#t~ite7#1 % 256 - 256);havoc node3_#t~ite7#1;~mode3~0 := 1; {5095#false} is VALID [2022-02-20 19:38:47,803 INFO L290 TraceCheckUtils]: 20: Hoare triple {5095#false} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {5095#false} is VALID [2022-02-20 19:38:47,804 INFO L290 TraceCheckUtils]: 21: Hoare triple {5095#false} assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; {5095#false} is VALID [2022-02-20 19:38:47,804 INFO L290 TraceCheckUtils]: 22: Hoare triple {5095#false} check_#res#1 := check_~tmp~1#1; {5095#false} is VALID [2022-02-20 19:38:47,804 INFO L290 TraceCheckUtils]: 23: Hoare triple {5095#false} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {5095#false} is VALID [2022-02-20 19:38:47,804 INFO L290 TraceCheckUtils]: 24: Hoare triple {5095#false} assume 0 == assert_~arg#1 % 256; {5095#false} is VALID [2022-02-20 19:38:47,804 INFO L290 TraceCheckUtils]: 25: Hoare triple {5095#false} assume !false; {5095#false} is VALID [2022-02-20 19:38:47,805 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 19:38:47,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:38:47,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947148301] [2022-02-20 19:38:47,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947148301] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:38:47,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:38:47,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-20 19:38:47,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335771801] [2022-02-20 19:38:47,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:38:47,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2022-02-20 19:38:47,807 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:38:47,807 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 19:38:47,823 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:38:47,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-20 19:38:47,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:38:47,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-20 19:38:47,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-20 19:38:47,825 INFO L87 Difference]: Start difference. First operand 812 states and 1533 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 19:38:51,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:38:51,535 INFO L93 Difference]: Finished difference Result 888 states and 1649 transitions. [2022-02-20 19:38:51,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 19:38:51,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2022-02-20 19:38:51,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:38:51,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 19:38:51,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1649 transitions. [2022-02-20 19:38:51,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 19:38:51,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1649 transitions. [2022-02-20 19:38:51,549 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 1649 transitions. [2022-02-20 19:38:52,747 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 1649 edges. 1649 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:38:52,770 INFO L225 Difference]: With dead ends: 888 [2022-02-20 19:38:52,770 INFO L226 Difference]: Without dead ends: 848 [2022-02-20 19:38:52,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-20 19:38:52,771 INFO L933 BasicCegarLoop]: 1529 mSDtfsCounter, 58 mSDsluCounter, 4566 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 6095 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 19:38:52,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 6095 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 19:38:52,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2022-02-20 19:38:52,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 812. [2022-02-20 19:38:52,784 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:38:52,785 INFO L82 GeneralOperation]: Start isEquivalent. First operand 848 states. Second operand has 812 states, 810 states have (on average 1.8728395061728396) internal successors, (1517), 811 states have internal predecessors, (1517), 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 19:38:52,787 INFO L74 IsIncluded]: Start isIncluded. First operand 848 states. Second operand has 812 states, 810 states have (on average 1.8728395061728396) internal successors, (1517), 811 states have internal predecessors, (1517), 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 19:38:52,788 INFO L87 Difference]: Start difference. First operand 848 states. Second operand has 812 states, 810 states have (on average 1.8728395061728396) internal successors, (1517), 811 states have internal predecessors, (1517), 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 19:38:52,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:38:52,814 INFO L93 Difference]: Finished difference Result 848 states and 1573 transitions. [2022-02-20 19:38:52,814 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1573 transitions. [2022-02-20 19:38:52,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:38:52,815 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:38:52,816 INFO L74 IsIncluded]: Start isIncluded. First operand has 812 states, 810 states have (on average 1.8728395061728396) internal successors, (1517), 811 states have internal predecessors, (1517), 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 848 states. [2022-02-20 19:38:52,817 INFO L87 Difference]: Start difference. First operand has 812 states, 810 states have (on average 1.8728395061728396) internal successors, (1517), 811 states have internal predecessors, (1517), 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 848 states. [2022-02-20 19:38:52,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:38:52,843 INFO L93 Difference]: Finished difference Result 848 states and 1573 transitions. [2022-02-20 19:38:52,843 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1573 transitions. [2022-02-20 19:38:52,844 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:38:52,844 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:38:52,844 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:38:52,844 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:38:52,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 810 states have (on average 1.8728395061728396) internal successors, (1517), 811 states have internal predecessors, (1517), 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 19:38:52,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1517 transitions. [2022-02-20 19:38:52,868 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1517 transitions. Word has length 26 [2022-02-20 19:38:52,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:38:52,869 INFO L470 AbstractCegarLoop]: Abstraction has 812 states and 1517 transitions. [2022-02-20 19:38:52,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 19:38:52,869 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1517 transitions. [2022-02-20 19:38:52,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-20 19:38:52,870 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:38:52,870 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] [2022-02-20 19:38:52,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 19:38:52,870 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:38:52,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:38:52,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1324654887, now seen corresponding path program 1 times [2022-02-20 19:38:52,871 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:38:52,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571308635] [2022-02-20 19:38:52,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:38:52,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:38:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:38:52,971 INFO L290 TraceCheckUtils]: 0: Hoare triple {8538#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(32, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~inputC~0 := 3;~inputF~0 := 6;~inputA~0 := 1;~inputB~0 := 2;~inputD~0 := 4;~inputE~0 := 5;~a17~0 := -124;~a5~0 := 4;~a24~0 := 15;~a2~0 := 170;~a7~0 := 13; {8538#true} is VALID [2022-02-20 19:38:52,971 INFO L290 TraceCheckUtils]: 1: Hoare triple {8538#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet38#1, main_#t~ret39#1, main_#t~ret40#1;assume -2147483648 <= main_#t~nondet38#1 && main_#t~nondet38#1 <= 2147483647; {8538#true} is VALID [2022-02-20 19:38:52,971 INFO L290 TraceCheckUtils]: 2: Hoare triple {8538#true} assume 0 != main_#t~nondet38#1;havoc main_#t~nondet38#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet8#1, main1_#t~nondet9#1, main1_#t~nondet10#1, main1_#t~nondet11#1, main1_#t~nondet12#1, main1_#t~nondet13#1, main1_#t~nondet14#1, main1_#t~nondet15#1, main1_#t~nondet16#1, main1_#t~nondet17#1, main1_#t~nondet18#1, main1_#t~nondet19#1, main1_#t~nondet20#1, main1_#t~ret21#1, main1_#t~ret22#1, main1_#t~post23#1, main1_~c1~0#1, main1_~i2~0#1;havoc main1_~c1~0#1;havoc main1_~i2~0#1;main1_~c1~0#1 := 0;assume -128 <= main1_#t~nondet8#1 && main1_#t~nondet8#1 <= 127;~r1~0 := main1_#t~nondet8#1;havoc main1_#t~nondet8#1;assume -128 <= main1_#t~nondet9#1 && main1_#t~nondet9#1 <= 127;~id1~0 := main1_#t~nondet9#1;havoc main1_#t~nondet9#1;assume -128 <= main1_#t~nondet10#1 && main1_#t~nondet10#1 <= 127;~st1~0 := main1_#t~nondet10#1;havoc main1_#t~nondet10#1;assume -128 <= main1_#t~nondet11#1 && main1_#t~nondet11#1 <= 127;~send1~0 := main1_#t~nondet11#1;havoc main1_#t~nondet11#1;~mode1~0 := main1_#t~nondet12#1;havoc main1_#t~nondet12#1;assume -128 <= main1_#t~nondet13#1 && main1_#t~nondet13#1 <= 127;~id2~0 := main1_#t~nondet13#1;havoc main1_#t~nondet13#1;assume -128 <= main1_#t~nondet14#1 && main1_#t~nondet14#1 <= 127;~st2~0 := main1_#t~nondet14#1;havoc main1_#t~nondet14#1;assume -128 <= main1_#t~nondet15#1 && main1_#t~nondet15#1 <= 127;~send2~0 := main1_#t~nondet15#1;havoc main1_#t~nondet15#1;~mode2~0 := main1_#t~nondet16#1;havoc main1_#t~nondet16#1;assume -128 <= main1_#t~nondet17#1 && main1_#t~nondet17#1 <= 127;~id3~0 := main1_#t~nondet17#1;havoc main1_#t~nondet17#1;assume -128 <= main1_#t~nondet18#1 && main1_#t~nondet18#1 <= 127;~st3~0 := main1_#t~nondet18#1;havoc main1_#t~nondet18#1;assume -128 <= main1_#t~nondet19#1 && main1_#t~nondet19#1 <= 127;~send3~0 := main1_#t~nondet19#1;havoc main1_#t~nondet19#1;~mode3~0 := main1_#t~nondet20#1;havoc main1_#t~nondet20#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; {8538#true} is VALID [2022-02-20 19:38:52,972 INFO L290 TraceCheckUtils]: 3: Hoare triple {8538#true} assume 0 == ~r1~0; {8538#true} is VALID [2022-02-20 19:38:52,972 INFO L290 TraceCheckUtils]: 4: Hoare triple {8538#true} assume ~id1~0 >= 0; {8538#true} is VALID [2022-02-20 19:38:52,972 INFO L290 TraceCheckUtils]: 5: Hoare triple {8538#true} assume 0 == ~st1~0; {8538#true} is VALID [2022-02-20 19:38:52,972 INFO L290 TraceCheckUtils]: 6: Hoare triple {8538#true} assume ~send1~0 == ~id1~0; {8538#true} is VALID [2022-02-20 19:38:52,973 INFO L290 TraceCheckUtils]: 7: Hoare triple {8538#true} assume 0 == ~mode1~0 % 256; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,974 INFO L290 TraceCheckUtils]: 8: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume ~id2~0 >= 0; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,974 INFO L290 TraceCheckUtils]: 9: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume 0 == ~st2~0; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,975 INFO L290 TraceCheckUtils]: 10: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume ~send2~0 == ~id2~0; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,975 INFO L290 TraceCheckUtils]: 11: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume 0 == ~mode2~0 % 256; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,976 INFO L290 TraceCheckUtils]: 12: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume ~id3~0 >= 0; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,976 INFO L290 TraceCheckUtils]: 13: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume 0 == ~st3~0; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,977 INFO L290 TraceCheckUtils]: 14: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume ~send3~0 == ~id3~0; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,977 INFO L290 TraceCheckUtils]: 15: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume 0 == ~mode3~0 % 256; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,978 INFO L290 TraceCheckUtils]: 16: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume ~id1~0 != ~id2~0; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,978 INFO L290 TraceCheckUtils]: 17: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume ~id1~0 != ~id3~0; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,979 INFO L290 TraceCheckUtils]: 18: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,979 INFO L290 TraceCheckUtils]: 19: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} init_#res#1 := init_~tmp~0#1; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,980 INFO L290 TraceCheckUtils]: 20: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} main1_#t~ret21#1 := init_#res#1;assume { :end_inline_init } true;assume -2147483648 <= main1_#t~ret21#1 && main1_#t~ret21#1 <= 2147483647;main1_~i2~0#1 := main1_#t~ret21#1;havoc main1_#t~ret21#1; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,980 INFO L290 TraceCheckUtils]: 21: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume !(0 == main1_~i2~0#1); {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,981 INFO L290 TraceCheckUtils]: 22: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main1_~i2~0#1 := 0; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,981 INFO L290 TraceCheckUtils]: 23: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} is VALID [2022-02-20 19:38:52,982 INFO L290 TraceCheckUtils]: 24: Hoare triple {8540#(= (+ (* (- 256) (div ~mode1~0 256)) ~mode1~0) 0)} assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; {8539#false} is VALID [2022-02-20 19:38:52,982 INFO L290 TraceCheckUtils]: 25: Hoare triple {8539#false} assume !(node1_~m1~0#1 != ~nomsg~0); {8539#false} is VALID [2022-02-20 19:38:52,982 INFO L290 TraceCheckUtils]: 26: Hoare triple {8539#false} ~mode1~0 := 0; {8539#false} is VALID [2022-02-20 19:38:52,982 INFO L290 TraceCheckUtils]: 27: Hoare triple {8539#false} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {8539#false} is VALID [2022-02-20 19:38:52,982 INFO L290 TraceCheckUtils]: 28: Hoare triple {8539#false} assume !(0 != ~mode2~0 % 256); {8539#false} is VALID [2022-02-20 19:38:52,983 INFO L290 TraceCheckUtils]: 29: Hoare triple {8539#false} assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite6#1 := ~send2~0; {8539#false} is VALID [2022-02-20 19:38:52,983 INFO L290 TraceCheckUtils]: 30: Hoare triple {8539#false} ~p2_new~0 := (if node2_#t~ite6#1 % 256 <= 127 then node2_#t~ite6#1 % 256 else node2_#t~ite6#1 % 256 - 256);havoc node2_#t~ite6#1;~mode2~0 := 1; {8539#false} is VALID [2022-02-20 19:38:52,983 INFO L290 TraceCheckUtils]: 31: Hoare triple {8539#false} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {8539#false} is VALID [2022-02-20 19:38:52,983 INFO L290 TraceCheckUtils]: 32: Hoare triple {8539#false} assume !(0 != ~mode3~0 % 256); {8539#false} is VALID [2022-02-20 19:38:52,983 INFO L290 TraceCheckUtils]: 33: Hoare triple {8539#false} assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite7#1 := ~send3~0; {8539#false} is VALID [2022-02-20 19:38:52,983 INFO L290 TraceCheckUtils]: 34: Hoare triple {8539#false} ~p3_new~0 := (if node3_#t~ite7#1 % 256 <= 127 then node3_#t~ite7#1 % 256 else node3_#t~ite7#1 % 256 - 256);havoc node3_#t~ite7#1;~mode3~0 := 1; {8539#false} is VALID [2022-02-20 19:38:52,984 INFO L290 TraceCheckUtils]: 35: Hoare triple {8539#false} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {8539#false} is VALID [2022-02-20 19:38:52,984 INFO L290 TraceCheckUtils]: 36: Hoare triple {8539#false} assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; {8539#false} is VALID [2022-02-20 19:38:52,984 INFO L290 TraceCheckUtils]: 37: Hoare triple {8539#false} check_#res#1 := check_~tmp~1#1; {8539#false} is VALID [2022-02-20 19:38:52,984 INFO L290 TraceCheckUtils]: 38: Hoare triple {8539#false} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {8539#false} is VALID [2022-02-20 19:38:52,984 INFO L290 TraceCheckUtils]: 39: Hoare triple {8539#false} assume 0 == assert_~arg#1 % 256; {8539#false} is VALID [2022-02-20 19:38:52,985 INFO L290 TraceCheckUtils]: 40: Hoare triple {8539#false} assume !false; {8539#false} is VALID [2022-02-20 19:38:52,985 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 19:38:52,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:38:52,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571308635] [2022-02-20 19:38:52,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571308635] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:38:52,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:38:52,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 19:38:52,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878660939] [2022-02-20 19:38:52,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:38:52,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2022-02-20 19:38:52,987 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:38:52,987 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 19:38:53,012 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:38:53,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 19:38:53,012 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:38:53,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 19:38:53,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 19:38:53,013 INFO L87 Difference]: Start difference. First operand 812 states and 1517 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 19:38:54,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:38:54,679 INFO L93 Difference]: Finished difference Result 878 states and 1619 transitions. [2022-02-20 19:38:54,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 19:38:54,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2022-02-20 19:38:54,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:38:54,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 19:38:54,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1619 transitions. [2022-02-20 19:38:54,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 19:38:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1619 transitions. [2022-02-20 19:38:54,693 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 1619 transitions. [2022-02-20 19:38:56,112 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 1619 edges. 1619 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:38:56,135 INFO L225 Difference]: With dead ends: 878 [2022-02-20 19:38:56,136 INFO L226 Difference]: Without dead ends: 842 [2022-02-20 19:38:56,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 19:38:56,137 INFO L933 BasicCegarLoop]: 1559 mSDtfsCounter, 1485 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 19:38:56,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1485 Valid, 1613 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 19:38:56,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2022-02-20 19:38:56,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 840. [2022-02-20 19:38:56,147 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:38:56,148 INFO L82 GeneralOperation]: Start isEquivalent. First operand 842 states. Second operand has 840 states, 838 states have (on average 1.8627684964200477) internal successors, (1561), 839 states have internal predecessors, (1561), 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 19:38:56,149 INFO L74 IsIncluded]: Start isIncluded. First operand 842 states. Second operand has 840 states, 838 states have (on average 1.8627684964200477) internal successors, (1561), 839 states have internal predecessors, (1561), 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 19:38:56,150 INFO L87 Difference]: Start difference. First operand 842 states. Second operand has 840 states, 838 states have (on average 1.8627684964200477) internal successors, (1561), 839 states have internal predecessors, (1561), 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 19:38:56,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:38:56,175 INFO L93 Difference]: Finished difference Result 842 states and 1562 transitions. [2022-02-20 19:38:56,175 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1562 transitions. [2022-02-20 19:38:56,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:38:56,176 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:38:56,178 INFO L74 IsIncluded]: Start isIncluded. First operand has 840 states, 838 states have (on average 1.8627684964200477) internal successors, (1561), 839 states have internal predecessors, (1561), 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 842 states. [2022-02-20 19:38:56,180 INFO L87 Difference]: Start difference. First operand has 840 states, 838 states have (on average 1.8627684964200477) internal successors, (1561), 839 states have internal predecessors, (1561), 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 842 states. [2022-02-20 19:38:56,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:38:56,204 INFO L93 Difference]: Finished difference Result 842 states and 1562 transitions. [2022-02-20 19:38:56,204 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1562 transitions. [2022-02-20 19:38:56,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:38:56,205 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:38:56,205 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:38:56,205 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:38:56,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 838 states have (on average 1.8627684964200477) internal successors, (1561), 839 states have internal predecessors, (1561), 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 19:38:56,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1561 transitions. [2022-02-20 19:38:56,232 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1561 transitions. Word has length 41 [2022-02-20 19:38:56,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:38:56,233 INFO L470 AbstractCegarLoop]: Abstraction has 840 states and 1561 transitions. [2022-02-20 19:38:56,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 19:38:56,233 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1561 transitions. [2022-02-20 19:38:56,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-20 19:38:56,235 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:38:56,235 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] [2022-02-20 19:38:56,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-20 19:38:56,236 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:38:56,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:38:56,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1376027727, now seen corresponding path program 1 times [2022-02-20 19:38:56,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:38:56,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351755489] [2022-02-20 19:38:56,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:38:56,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:38:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:38:56,347 INFO L290 TraceCheckUtils]: 0: Hoare triple {11987#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(32, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~inputC~0 := 3;~inputF~0 := 6;~inputA~0 := 1;~inputB~0 := 2;~inputD~0 := 4;~inputE~0 := 5;~a17~0 := -124;~a5~0 := 4;~a24~0 := 15;~a2~0 := 170;~a7~0 := 13; {11987#true} is VALID [2022-02-20 19:38:56,348 INFO L290 TraceCheckUtils]: 1: Hoare triple {11987#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet38#1, main_#t~ret39#1, main_#t~ret40#1;assume -2147483648 <= main_#t~nondet38#1 && main_#t~nondet38#1 <= 2147483647; {11987#true} is VALID [2022-02-20 19:38:56,348 INFO L290 TraceCheckUtils]: 2: Hoare triple {11987#true} assume 0 != main_#t~nondet38#1;havoc main_#t~nondet38#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet8#1, main1_#t~nondet9#1, main1_#t~nondet10#1, main1_#t~nondet11#1, main1_#t~nondet12#1, main1_#t~nondet13#1, main1_#t~nondet14#1, main1_#t~nondet15#1, main1_#t~nondet16#1, main1_#t~nondet17#1, main1_#t~nondet18#1, main1_#t~nondet19#1, main1_#t~nondet20#1, main1_#t~ret21#1, main1_#t~ret22#1, main1_#t~post23#1, main1_~c1~0#1, main1_~i2~0#1;havoc main1_~c1~0#1;havoc main1_~i2~0#1;main1_~c1~0#1 := 0;assume -128 <= main1_#t~nondet8#1 && main1_#t~nondet8#1 <= 127;~r1~0 := main1_#t~nondet8#1;havoc main1_#t~nondet8#1;assume -128 <= main1_#t~nondet9#1 && main1_#t~nondet9#1 <= 127;~id1~0 := main1_#t~nondet9#1;havoc main1_#t~nondet9#1;assume -128 <= main1_#t~nondet10#1 && main1_#t~nondet10#1 <= 127;~st1~0 := main1_#t~nondet10#1;havoc main1_#t~nondet10#1;assume -128 <= main1_#t~nondet11#1 && main1_#t~nondet11#1 <= 127;~send1~0 := main1_#t~nondet11#1;havoc main1_#t~nondet11#1;~mode1~0 := main1_#t~nondet12#1;havoc main1_#t~nondet12#1;assume -128 <= main1_#t~nondet13#1 && main1_#t~nondet13#1 <= 127;~id2~0 := main1_#t~nondet13#1;havoc main1_#t~nondet13#1;assume -128 <= main1_#t~nondet14#1 && main1_#t~nondet14#1 <= 127;~st2~0 := main1_#t~nondet14#1;havoc main1_#t~nondet14#1;assume -128 <= main1_#t~nondet15#1 && main1_#t~nondet15#1 <= 127;~send2~0 := main1_#t~nondet15#1;havoc main1_#t~nondet15#1;~mode2~0 := main1_#t~nondet16#1;havoc main1_#t~nondet16#1;assume -128 <= main1_#t~nondet17#1 && main1_#t~nondet17#1 <= 127;~id3~0 := main1_#t~nondet17#1;havoc main1_#t~nondet17#1;assume -128 <= main1_#t~nondet18#1 && main1_#t~nondet18#1 <= 127;~st3~0 := main1_#t~nondet18#1;havoc main1_#t~nondet18#1;assume -128 <= main1_#t~nondet19#1 && main1_#t~nondet19#1 <= 127;~send3~0 := main1_#t~nondet19#1;havoc main1_#t~nondet19#1;~mode3~0 := main1_#t~nondet20#1;havoc main1_#t~nondet20#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; {11987#true} is VALID [2022-02-20 19:38:56,348 INFO L290 TraceCheckUtils]: 3: Hoare triple {11987#true} assume 0 == ~r1~0; {11987#true} is VALID [2022-02-20 19:38:56,349 INFO L290 TraceCheckUtils]: 4: Hoare triple {11987#true} assume ~id1~0 >= 0; {11987#true} is VALID [2022-02-20 19:38:56,349 INFO L290 TraceCheckUtils]: 5: Hoare triple {11987#true} assume 0 == ~st1~0; {11989#(<= ~st1~0 0)} is VALID [2022-02-20 19:38:56,349 INFO L290 TraceCheckUtils]: 6: Hoare triple {11989#(<= ~st1~0 0)} assume ~send1~0 == ~id1~0; {11989#(<= ~st1~0 0)} is VALID [2022-02-20 19:38:56,350 INFO L290 TraceCheckUtils]: 7: Hoare triple {11989#(<= ~st1~0 0)} assume 0 == ~mode1~0 % 256; {11989#(<= ~st1~0 0)} is VALID [2022-02-20 19:38:56,350 INFO L290 TraceCheckUtils]: 8: Hoare triple {11989#(<= ~st1~0 0)} assume ~id2~0 >= 0; {11989#(<= ~st1~0 0)} is VALID [2022-02-20 19:38:56,350 INFO L290 TraceCheckUtils]: 9: Hoare triple {11989#(<= ~st1~0 0)} assume 0 == ~st2~0; {11990#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,351 INFO L290 TraceCheckUtils]: 10: Hoare triple {11990#(<= (+ ~st2~0 ~st1~0) 0)} assume ~send2~0 == ~id2~0; {11990#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,351 INFO L290 TraceCheckUtils]: 11: Hoare triple {11990#(<= (+ ~st2~0 ~st1~0) 0)} assume 0 == ~mode2~0 % 256; {11990#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,353 INFO L290 TraceCheckUtils]: 12: Hoare triple {11990#(<= (+ ~st2~0 ~st1~0) 0)} assume ~id3~0 >= 0; {11990#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,353 INFO L290 TraceCheckUtils]: 13: Hoare triple {11990#(<= (+ ~st2~0 ~st1~0) 0)} assume 0 == ~st3~0; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,354 INFO L290 TraceCheckUtils]: 14: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume ~send3~0 == ~id3~0; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,354 INFO L290 TraceCheckUtils]: 15: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume 0 == ~mode3~0 % 256; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,354 INFO L290 TraceCheckUtils]: 16: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume ~id1~0 != ~id2~0; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,355 INFO L290 TraceCheckUtils]: 17: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume ~id1~0 != ~id3~0; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,356 INFO L290 TraceCheckUtils]: 18: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,357 INFO L290 TraceCheckUtils]: 19: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} init_#res#1 := init_~tmp~0#1; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,357 INFO L290 TraceCheckUtils]: 20: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} main1_#t~ret21#1 := init_#res#1;assume { :end_inline_init } true;assume -2147483648 <= main1_#t~ret21#1 && main1_#t~ret21#1 <= 2147483647;main1_~i2~0#1 := main1_#t~ret21#1;havoc main1_#t~ret21#1; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,358 INFO L290 TraceCheckUtils]: 21: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume !(0 == main1_~i2~0#1); {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,359 INFO L290 TraceCheckUtils]: 22: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main1_~i2~0#1 := 0; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,365 INFO L290 TraceCheckUtils]: 23: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,366 INFO L290 TraceCheckUtils]: 24: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume !(0 != ~mode1~0 % 256); {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,367 INFO L290 TraceCheckUtils]: 25: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite5#1 := ~send1~0; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,367 INFO L290 TraceCheckUtils]: 26: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} ~p1_new~0 := (if node1_#t~ite5#1 % 256 <= 127 then node1_#t~ite5#1 % 256 else node1_#t~ite5#1 % 256 - 256);havoc node1_#t~ite5#1;~mode1~0 := 1; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,367 INFO L290 TraceCheckUtils]: 27: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,368 INFO L290 TraceCheckUtils]: 28: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume !(0 != ~mode2~0 % 256); {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,368 INFO L290 TraceCheckUtils]: 29: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite6#1 := ~send2~0; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,368 INFO L290 TraceCheckUtils]: 30: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} ~p2_new~0 := (if node2_#t~ite6#1 % 256 <= 127 then node2_#t~ite6#1 % 256 else node2_#t~ite6#1 % 256 - 256);havoc node2_#t~ite6#1;~mode2~0 := 1; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,369 INFO L290 TraceCheckUtils]: 31: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,369 INFO L290 TraceCheckUtils]: 32: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume !(0 != ~mode3~0 % 256); {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,369 INFO L290 TraceCheckUtils]: 33: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite7#1 := ~send3~0; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,373 INFO L290 TraceCheckUtils]: 34: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} ~p3_new~0 := (if node3_#t~ite7#1 % 256 <= 127 then node3_#t~ite7#1 % 256 else node3_#t~ite7#1 % 256 - 256);havoc node3_#t~ite7#1;~mode3~0 := 1; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,373 INFO L290 TraceCheckUtils]: 35: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:38:56,374 INFO L290 TraceCheckUtils]: 36: Hoare triple {11991#(<= (+ ~st3~0 ~st2~0 ~st1~0) 0)} assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; {11988#false} is VALID [2022-02-20 19:38:56,374 INFO L290 TraceCheckUtils]: 37: Hoare triple {11988#false} check_#res#1 := check_~tmp~1#1; {11988#false} is VALID [2022-02-20 19:38:56,374 INFO L290 TraceCheckUtils]: 38: Hoare triple {11988#false} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {11988#false} is VALID [2022-02-20 19:38:56,374 INFO L290 TraceCheckUtils]: 39: Hoare triple {11988#false} assume 0 == assert_~arg#1 % 256; {11988#false} is VALID [2022-02-20 19:38:56,375 INFO L290 TraceCheckUtils]: 40: Hoare triple {11988#false} assume !false; {11988#false} is VALID [2022-02-20 19:38:56,375 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 19:38:56,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:38:56,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351755489] [2022-02-20 19:38:56,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351755489] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:38:56,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:38:56,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-20 19:38:56,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410770057] [2022-02-20 19:38:56,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:38:56,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 41 [2022-02-20 19:38:56,376 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:38:56,377 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 19:38:56,404 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:38:56,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-20 19:38:56,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:38:56,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-20 19:38:56,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-20 19:38:56,406 INFO L87 Difference]: Start difference. First operand 840 states and 1561 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 19:38:58,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:38:58,602 INFO L93 Difference]: Finished difference Result 1224 states and 2161 transitions. [2022-02-20 19:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-20 19:38:58,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 41 [2022-02-20 19:38:58,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:38:58,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 19:38:58,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1853 transitions. [2022-02-20 19:38:58,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 19:38:58,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1853 transitions. [2022-02-20 19:38:58,618 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 1853 transitions. [2022-02-20 19:39:00,024 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 1853 edges. 1853 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:00,082 INFO L225 Difference]: With dead ends: 1224 [2022-02-20 19:39:00,082 INFO L226 Difference]: Without dead ends: 1160 [2022-02-20 19:39:00,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-20 19:39:00,090 INFO L933 BasicCegarLoop]: 1511 mSDtfsCounter, 4709 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4709 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-20 19:39:00,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4709 Valid, 1779 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-20 19:39:00,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-02-20 19:39:00,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 902. [2022-02-20 19:39:00,178 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:39:00,180 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1160 states. Second operand has 902 states, 900 states have (on average 1.84) internal successors, (1656), 901 states have internal predecessors, (1656), 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 19:39:00,181 INFO L74 IsIncluded]: Start isIncluded. First operand 1160 states. Second operand has 902 states, 900 states have (on average 1.84) internal successors, (1656), 901 states have internal predecessors, (1656), 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 19:39:00,183 INFO L87 Difference]: Start difference. First operand 1160 states. Second operand has 902 states, 900 states have (on average 1.84) internal successors, (1656), 901 states have internal predecessors, (1656), 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 19:39:00,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:00,227 INFO L93 Difference]: Finished difference Result 1160 states and 2049 transitions. [2022-02-20 19:39:00,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 2049 transitions. [2022-02-20 19:39:00,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:00,229 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:00,232 INFO L74 IsIncluded]: Start isIncluded. First operand has 902 states, 900 states have (on average 1.84) internal successors, (1656), 901 states have internal predecessors, (1656), 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 1160 states. [2022-02-20 19:39:00,243 INFO L87 Difference]: Start difference. First operand has 902 states, 900 states have (on average 1.84) internal successors, (1656), 901 states have internal predecessors, (1656), 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 1160 states. [2022-02-20 19:39:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:00,289 INFO L93 Difference]: Finished difference Result 1160 states and 2049 transitions. [2022-02-20 19:39:00,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 2049 transitions. [2022-02-20 19:39:00,290 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:00,291 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:00,291 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:39:00,291 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:39:00,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 900 states have (on average 1.84) internal successors, (1656), 901 states have internal predecessors, (1656), 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 19:39:00,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1656 transitions. [2022-02-20 19:39:00,327 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1656 transitions. Word has length 41 [2022-02-20 19:39:00,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:39:00,328 INFO L470 AbstractCegarLoop]: Abstraction has 902 states and 1656 transitions. [2022-02-20 19:39:00,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 19:39:00,328 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1656 transitions. [2022-02-20 19:39:00,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-20 19:39:00,329 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:39:00,329 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] [2022-02-20 19:39:00,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-20 19:39:00,330 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:39:00,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:39:00,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1902982177, now seen corresponding path program 1 times [2022-02-20 19:39:00,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:39:00,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091878484] [2022-02-20 19:39:00,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:39:00,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:39:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:39:00,400 INFO L290 TraceCheckUtils]: 0: Hoare triple {16567#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(32, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~inputC~0 := 3;~inputF~0 := 6;~inputA~0 := 1;~inputB~0 := 2;~inputD~0 := 4;~inputE~0 := 5;~a17~0 := -124;~a5~0 := 4;~a24~0 := 15;~a2~0 := 170;~a7~0 := 13; {16567#true} is VALID [2022-02-20 19:39:00,400 INFO L290 TraceCheckUtils]: 1: Hoare triple {16567#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet38#1, main_#t~ret39#1, main_#t~ret40#1;assume -2147483648 <= main_#t~nondet38#1 && main_#t~nondet38#1 <= 2147483647; {16567#true} is VALID [2022-02-20 19:39:00,400 INFO L290 TraceCheckUtils]: 2: Hoare triple {16567#true} assume 0 != main_#t~nondet38#1;havoc main_#t~nondet38#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet8#1, main1_#t~nondet9#1, main1_#t~nondet10#1, main1_#t~nondet11#1, main1_#t~nondet12#1, main1_#t~nondet13#1, main1_#t~nondet14#1, main1_#t~nondet15#1, main1_#t~nondet16#1, main1_#t~nondet17#1, main1_#t~nondet18#1, main1_#t~nondet19#1, main1_#t~nondet20#1, main1_#t~ret21#1, main1_#t~ret22#1, main1_#t~post23#1, main1_~c1~0#1, main1_~i2~0#1;havoc main1_~c1~0#1;havoc main1_~i2~0#1;main1_~c1~0#1 := 0;assume -128 <= main1_#t~nondet8#1 && main1_#t~nondet8#1 <= 127;~r1~0 := main1_#t~nondet8#1;havoc main1_#t~nondet8#1;assume -128 <= main1_#t~nondet9#1 && main1_#t~nondet9#1 <= 127;~id1~0 := main1_#t~nondet9#1;havoc main1_#t~nondet9#1;assume -128 <= main1_#t~nondet10#1 && main1_#t~nondet10#1 <= 127;~st1~0 := main1_#t~nondet10#1;havoc main1_#t~nondet10#1;assume -128 <= main1_#t~nondet11#1 && main1_#t~nondet11#1 <= 127;~send1~0 := main1_#t~nondet11#1;havoc main1_#t~nondet11#1;~mode1~0 := main1_#t~nondet12#1;havoc main1_#t~nondet12#1;assume -128 <= main1_#t~nondet13#1 && main1_#t~nondet13#1 <= 127;~id2~0 := main1_#t~nondet13#1;havoc main1_#t~nondet13#1;assume -128 <= main1_#t~nondet14#1 && main1_#t~nondet14#1 <= 127;~st2~0 := main1_#t~nondet14#1;havoc main1_#t~nondet14#1;assume -128 <= main1_#t~nondet15#1 && main1_#t~nondet15#1 <= 127;~send2~0 := main1_#t~nondet15#1;havoc main1_#t~nondet15#1;~mode2~0 := main1_#t~nondet16#1;havoc main1_#t~nondet16#1;assume -128 <= main1_#t~nondet17#1 && main1_#t~nondet17#1 <= 127;~id3~0 := main1_#t~nondet17#1;havoc main1_#t~nondet17#1;assume -128 <= main1_#t~nondet18#1 && main1_#t~nondet18#1 <= 127;~st3~0 := main1_#t~nondet18#1;havoc main1_#t~nondet18#1;assume -128 <= main1_#t~nondet19#1 && main1_#t~nondet19#1 <= 127;~send3~0 := main1_#t~nondet19#1;havoc main1_#t~nondet19#1;~mode3~0 := main1_#t~nondet20#1;havoc main1_#t~nondet20#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; {16567#true} is VALID [2022-02-20 19:39:00,401 INFO L290 TraceCheckUtils]: 3: Hoare triple {16567#true} assume 0 == ~r1~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,401 INFO L290 TraceCheckUtils]: 4: Hoare triple {16569#(<= ~r1~0 0)} assume ~id1~0 >= 0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,402 INFO L290 TraceCheckUtils]: 5: Hoare triple {16569#(<= ~r1~0 0)} assume 0 == ~st1~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,402 INFO L290 TraceCheckUtils]: 6: Hoare triple {16569#(<= ~r1~0 0)} assume ~send1~0 == ~id1~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,402 INFO L290 TraceCheckUtils]: 7: Hoare triple {16569#(<= ~r1~0 0)} assume 0 == ~mode1~0 % 256; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,403 INFO L290 TraceCheckUtils]: 8: Hoare triple {16569#(<= ~r1~0 0)} assume ~id2~0 >= 0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,403 INFO L290 TraceCheckUtils]: 9: Hoare triple {16569#(<= ~r1~0 0)} assume 0 == ~st2~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,403 INFO L290 TraceCheckUtils]: 10: Hoare triple {16569#(<= ~r1~0 0)} assume ~send2~0 == ~id2~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,404 INFO L290 TraceCheckUtils]: 11: Hoare triple {16569#(<= ~r1~0 0)} assume 0 == ~mode2~0 % 256; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,404 INFO L290 TraceCheckUtils]: 12: Hoare triple {16569#(<= ~r1~0 0)} assume ~id3~0 >= 0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,404 INFO L290 TraceCheckUtils]: 13: Hoare triple {16569#(<= ~r1~0 0)} assume 0 == ~st3~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,405 INFO L290 TraceCheckUtils]: 14: Hoare triple {16569#(<= ~r1~0 0)} assume ~send3~0 == ~id3~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,405 INFO L290 TraceCheckUtils]: 15: Hoare triple {16569#(<= ~r1~0 0)} assume 0 == ~mode3~0 % 256; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,406 INFO L290 TraceCheckUtils]: 16: Hoare triple {16569#(<= ~r1~0 0)} assume ~id1~0 != ~id2~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,406 INFO L290 TraceCheckUtils]: 17: Hoare triple {16569#(<= ~r1~0 0)} assume ~id1~0 != ~id3~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,406 INFO L290 TraceCheckUtils]: 18: Hoare triple {16569#(<= ~r1~0 0)} assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,407 INFO L290 TraceCheckUtils]: 19: Hoare triple {16569#(<= ~r1~0 0)} init_#res#1 := init_~tmp~0#1; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,407 INFO L290 TraceCheckUtils]: 20: Hoare triple {16569#(<= ~r1~0 0)} main1_#t~ret21#1 := init_#res#1;assume { :end_inline_init } true;assume -2147483648 <= main1_#t~ret21#1 && main1_#t~ret21#1 <= 2147483647;main1_~i2~0#1 := main1_#t~ret21#1;havoc main1_#t~ret21#1; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,407 INFO L290 TraceCheckUtils]: 21: Hoare triple {16569#(<= ~r1~0 0)} assume !(0 == main1_~i2~0#1); {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,408 INFO L290 TraceCheckUtils]: 22: Hoare triple {16569#(<= ~r1~0 0)} ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main1_~i2~0#1 := 0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,408 INFO L290 TraceCheckUtils]: 23: Hoare triple {16569#(<= ~r1~0 0)} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,408 INFO L290 TraceCheckUtils]: 24: Hoare triple {16569#(<= ~r1~0 0)} assume !(0 != ~mode1~0 % 256); {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,409 INFO L290 TraceCheckUtils]: 25: Hoare triple {16569#(<= ~r1~0 0)} assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite5#1 := ~send1~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,409 INFO L290 TraceCheckUtils]: 26: Hoare triple {16569#(<= ~r1~0 0)} ~p1_new~0 := (if node1_#t~ite5#1 % 256 <= 127 then node1_#t~ite5#1 % 256 else node1_#t~ite5#1 % 256 - 256);havoc node1_#t~ite5#1;~mode1~0 := 1; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,409 INFO L290 TraceCheckUtils]: 27: Hoare triple {16569#(<= ~r1~0 0)} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,410 INFO L290 TraceCheckUtils]: 28: Hoare triple {16569#(<= ~r1~0 0)} assume !(0 != ~mode2~0 % 256); {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,410 INFO L290 TraceCheckUtils]: 29: Hoare triple {16569#(<= ~r1~0 0)} assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite6#1 := ~send2~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,411 INFO L290 TraceCheckUtils]: 30: Hoare triple {16569#(<= ~r1~0 0)} ~p2_new~0 := (if node2_#t~ite6#1 % 256 <= 127 then node2_#t~ite6#1 % 256 else node2_#t~ite6#1 % 256 - 256);havoc node2_#t~ite6#1;~mode2~0 := 1; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,411 INFO L290 TraceCheckUtils]: 31: Hoare triple {16569#(<= ~r1~0 0)} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,411 INFO L290 TraceCheckUtils]: 32: Hoare triple {16569#(<= ~r1~0 0)} assume !(0 != ~mode3~0 % 256); {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,412 INFO L290 TraceCheckUtils]: 33: Hoare triple {16569#(<= ~r1~0 0)} assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite7#1 := ~send3~0; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,412 INFO L290 TraceCheckUtils]: 34: Hoare triple {16569#(<= ~r1~0 0)} ~p3_new~0 := (if node3_#t~ite7#1 % 256 <= 127 then node3_#t~ite7#1 % 256 else node3_#t~ite7#1 % 256 - 256);havoc node3_#t~ite7#1;~mode3~0 := 1; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,412 INFO L290 TraceCheckUtils]: 35: Hoare triple {16569#(<= ~r1~0 0)} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,413 INFO L290 TraceCheckUtils]: 36: Hoare triple {16569#(<= ~r1~0 0)} assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; {16569#(<= ~r1~0 0)} is VALID [2022-02-20 19:39:00,413 INFO L290 TraceCheckUtils]: 37: Hoare triple {16569#(<= ~r1~0 0)} assume ~r1~0 >= 3; {16568#false} is VALID [2022-02-20 19:39:00,413 INFO L290 TraceCheckUtils]: 38: Hoare triple {16568#false} assume ~r1~0 < 3;check_~tmp~1#1 := 1; {16568#false} is VALID [2022-02-20 19:39:00,413 INFO L290 TraceCheckUtils]: 39: Hoare triple {16568#false} check_#res#1 := check_~tmp~1#1; {16568#false} is VALID [2022-02-20 19:39:00,414 INFO L290 TraceCheckUtils]: 40: Hoare triple {16568#false} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {16568#false} is VALID [2022-02-20 19:39:00,414 INFO L290 TraceCheckUtils]: 41: Hoare triple {16568#false} assume 0 == assert_~arg#1 % 256; {16568#false} is VALID [2022-02-20 19:39:00,414 INFO L290 TraceCheckUtils]: 42: Hoare triple {16568#false} assume !false; {16568#false} is VALID [2022-02-20 19:39:00,414 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 19:39:00,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:39:00,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091878484] [2022-02-20 19:39:00,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091878484] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:39:00,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:39:00,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 19:39:00,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827521222] [2022-02-20 19:39:00,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:39:00,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2022-02-20 19:39:00,418 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:39:00,418 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:00,443 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:00,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 19:39:00,443 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:39:00,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 19:39:00,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 19:39:00,444 INFO L87 Difference]: Start difference. First operand 902 states and 1656 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:01,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:01,867 INFO L93 Difference]: Finished difference Result 1089 states and 1943 transitions. [2022-02-20 19:39:01,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 19:39:01,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2022-02-20 19:39:01,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:39:01,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1620 transitions. [2022-02-20 19:39:01,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:01,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1620 transitions. [2022-02-20 19:39:01,881 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 1620 transitions. [2022-02-20 19:39:03,151 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 1620 edges. 1620 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:03,181 INFO L225 Difference]: With dead ends: 1089 [2022-02-20 19:39:03,181 INFO L226 Difference]: Without dead ends: 963 [2022-02-20 19:39:03,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 19:39:03,182 INFO L933 BasicCegarLoop]: 1514 mSDtfsCounter, 1469 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 19:39:03,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 1565 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 19:39:03,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-02-20 19:39:03,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 961. [2022-02-20 19:39:03,238 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:39:03,240 INFO L82 GeneralOperation]: Start isEquivalent. First operand 963 states. Second operand has 961 states, 959 states have (on average 1.8185610010427529) internal successors, (1744), 960 states have internal predecessors, (1744), 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 19:39:03,241 INFO L74 IsIncluded]: Start isIncluded. First operand 963 states. Second operand has 961 states, 959 states have (on average 1.8185610010427529) internal successors, (1744), 960 states have internal predecessors, (1744), 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 19:39:03,242 INFO L87 Difference]: Start difference. First operand 963 states. Second operand has 961 states, 959 states have (on average 1.8185610010427529) internal successors, (1744), 960 states have internal predecessors, (1744), 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 19:39:03,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:03,271 INFO L93 Difference]: Finished difference Result 963 states and 1745 transitions. [2022-02-20 19:39:03,272 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1745 transitions. [2022-02-20 19:39:03,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:03,275 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:03,277 INFO L74 IsIncluded]: Start isIncluded. First operand has 961 states, 959 states have (on average 1.8185610010427529) internal successors, (1744), 960 states have internal predecessors, (1744), 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 963 states. [2022-02-20 19:39:03,278 INFO L87 Difference]: Start difference. First operand has 961 states, 959 states have (on average 1.8185610010427529) internal successors, (1744), 960 states have internal predecessors, (1744), 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 963 states. [2022-02-20 19:39:03,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:03,308 INFO L93 Difference]: Finished difference Result 963 states and 1745 transitions. [2022-02-20 19:39:03,308 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1745 transitions. [2022-02-20 19:39:03,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:03,309 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:03,309 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:39:03,310 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:39:03,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 959 states have (on average 1.8185610010427529) internal successors, (1744), 960 states have internal predecessors, (1744), 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 19:39:03,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1744 transitions. [2022-02-20 19:39:03,341 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1744 transitions. Word has length 43 [2022-02-20 19:39:03,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:39:03,342 INFO L470 AbstractCegarLoop]: Abstraction has 961 states and 1744 transitions. [2022-02-20 19:39:03,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:03,342 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1744 transitions. [2022-02-20 19:39:03,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-20 19:39:03,342 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:39:03,343 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] [2022-02-20 19:39:03,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-20 19:39:03,343 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:39:03,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:39:03,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1836488665, now seen corresponding path program 1 times [2022-02-20 19:39:03,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:39:03,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010923605] [2022-02-20 19:39:03,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:39:03,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:39:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:39:03,536 INFO L290 TraceCheckUtils]: 0: Hoare triple {20656#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(32, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~inputC~0 := 3;~inputF~0 := 6;~inputA~0 := 1;~inputB~0 := 2;~inputD~0 := 4;~inputE~0 := 5;~a17~0 := -124;~a5~0 := 4;~a24~0 := 15;~a2~0 := 170;~a7~0 := 13; {20656#true} is VALID [2022-02-20 19:39:03,537 INFO L290 TraceCheckUtils]: 1: Hoare triple {20656#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet38#1, main_#t~ret39#1, main_#t~ret40#1;assume -2147483648 <= main_#t~nondet38#1 && main_#t~nondet38#1 <= 2147483647; {20656#true} is VALID [2022-02-20 19:39:03,537 INFO L290 TraceCheckUtils]: 2: Hoare triple {20656#true} assume 0 != main_#t~nondet38#1;havoc main_#t~nondet38#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet8#1, main1_#t~nondet9#1, main1_#t~nondet10#1, main1_#t~nondet11#1, main1_#t~nondet12#1, main1_#t~nondet13#1, main1_#t~nondet14#1, main1_#t~nondet15#1, main1_#t~nondet16#1, main1_#t~nondet17#1, main1_#t~nondet18#1, main1_#t~nondet19#1, main1_#t~nondet20#1, main1_#t~ret21#1, main1_#t~ret22#1, main1_#t~post23#1, main1_~c1~0#1, main1_~i2~0#1;havoc main1_~c1~0#1;havoc main1_~i2~0#1;main1_~c1~0#1 := 0;assume -128 <= main1_#t~nondet8#1 && main1_#t~nondet8#1 <= 127;~r1~0 := main1_#t~nondet8#1;havoc main1_#t~nondet8#1;assume -128 <= main1_#t~nondet9#1 && main1_#t~nondet9#1 <= 127;~id1~0 := main1_#t~nondet9#1;havoc main1_#t~nondet9#1;assume -128 <= main1_#t~nondet10#1 && main1_#t~nondet10#1 <= 127;~st1~0 := main1_#t~nondet10#1;havoc main1_#t~nondet10#1;assume -128 <= main1_#t~nondet11#1 && main1_#t~nondet11#1 <= 127;~send1~0 := main1_#t~nondet11#1;havoc main1_#t~nondet11#1;~mode1~0 := main1_#t~nondet12#1;havoc main1_#t~nondet12#1;assume -128 <= main1_#t~nondet13#1 && main1_#t~nondet13#1 <= 127;~id2~0 := main1_#t~nondet13#1;havoc main1_#t~nondet13#1;assume -128 <= main1_#t~nondet14#1 && main1_#t~nondet14#1 <= 127;~st2~0 := main1_#t~nondet14#1;havoc main1_#t~nondet14#1;assume -128 <= main1_#t~nondet15#1 && main1_#t~nondet15#1 <= 127;~send2~0 := main1_#t~nondet15#1;havoc main1_#t~nondet15#1;~mode2~0 := main1_#t~nondet16#1;havoc main1_#t~nondet16#1;assume -128 <= main1_#t~nondet17#1 && main1_#t~nondet17#1 <= 127;~id3~0 := main1_#t~nondet17#1;havoc main1_#t~nondet17#1;assume -128 <= main1_#t~nondet18#1 && main1_#t~nondet18#1 <= 127;~st3~0 := main1_#t~nondet18#1;havoc main1_#t~nondet18#1;assume -128 <= main1_#t~nondet19#1 && main1_#t~nondet19#1 <= 127;~send3~0 := main1_#t~nondet19#1;havoc main1_#t~nondet19#1;~mode3~0 := main1_#t~nondet20#1;havoc main1_#t~nondet20#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; {20656#true} is VALID [2022-02-20 19:39:03,537 INFO L290 TraceCheckUtils]: 3: Hoare triple {20656#true} assume 0 == ~r1~0; {20656#true} is VALID [2022-02-20 19:39:03,537 INFO L290 TraceCheckUtils]: 4: Hoare triple {20656#true} assume ~id1~0 >= 0; {20656#true} is VALID [2022-02-20 19:39:03,538 INFO L290 TraceCheckUtils]: 5: Hoare triple {20656#true} assume 0 == ~st1~0; {20658#(and (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 ~st1~0)) (or (<= ~st1~0 0) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0)))} is VALID [2022-02-20 19:39:03,538 INFO L290 TraceCheckUtils]: 6: Hoare triple {20658#(and (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 ~st1~0)) (or (<= ~st1~0 0) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0)))} assume ~send1~0 == ~id1~0; {20658#(and (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 ~st1~0)) (or (<= ~st1~0 0) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0)))} is VALID [2022-02-20 19:39:03,539 INFO L290 TraceCheckUtils]: 7: Hoare triple {20658#(and (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 ~st1~0)) (or (<= ~st1~0 0) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0)))} assume 0 == ~mode1~0 % 256; {20658#(and (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 ~st1~0)) (or (<= ~st1~0 0) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0)))} is VALID [2022-02-20 19:39:03,539 INFO L290 TraceCheckUtils]: 8: Hoare triple {20658#(and (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 ~st1~0)) (or (<= ~st1~0 0) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0)))} assume ~id2~0 >= 0; {20658#(and (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 ~st1~0)) (or (<= ~st1~0 0) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0)))} is VALID [2022-02-20 19:39:03,540 INFO L290 TraceCheckUtils]: 9: Hoare triple {20658#(and (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 ~st1~0)) (or (<= ~st1~0 0) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0)))} assume 0 == ~st2~0; {20659#(and (or (<= (+ ~st3~0 ~st2~0 ~st1~0) 0) (<= (+ ~st2~0 ~st1~0) 0)) (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 (+ ~st2~0 ~st1~0))))} is VALID [2022-02-20 19:39:03,540 INFO L290 TraceCheckUtils]: 10: Hoare triple {20659#(and (or (<= (+ ~st3~0 ~st2~0 ~st1~0) 0) (<= (+ ~st2~0 ~st1~0) 0)) (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 (+ ~st2~0 ~st1~0))))} assume ~send2~0 == ~id2~0; {20659#(and (or (<= (+ ~st3~0 ~st2~0 ~st1~0) 0) (<= (+ ~st2~0 ~st1~0) 0)) (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 (+ ~st2~0 ~st1~0))))} is VALID [2022-02-20 19:39:03,541 INFO L290 TraceCheckUtils]: 11: Hoare triple {20659#(and (or (<= (+ ~st3~0 ~st2~0 ~st1~0) 0) (<= (+ ~st2~0 ~st1~0) 0)) (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 (+ ~st2~0 ~st1~0))))} assume 0 == ~mode2~0 % 256; {20659#(and (or (<= (+ ~st3~0 ~st2~0 ~st1~0) 0) (<= (+ ~st2~0 ~st1~0) 0)) (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 (+ ~st2~0 ~st1~0))))} is VALID [2022-02-20 19:39:03,541 INFO L290 TraceCheckUtils]: 12: Hoare triple {20659#(and (or (<= (+ ~st3~0 ~st2~0 ~st1~0) 0) (<= (+ ~st2~0 ~st1~0) 0)) (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 (+ ~st2~0 ~st1~0))))} assume ~id3~0 >= 0; {20659#(and (or (<= (+ ~st3~0 ~st2~0 ~st1~0) 0) (<= (+ ~st2~0 ~st1~0) 0)) (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 (+ ~st2~0 ~st1~0))))} is VALID [2022-02-20 19:39:03,542 INFO L290 TraceCheckUtils]: 13: Hoare triple {20659#(and (or (<= (+ ~st3~0 ~st2~0 ~st1~0) 0) (<= (+ ~st2~0 ~st1~0) 0)) (or (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= 0 (+ ~st2~0 ~st1~0))))} assume 0 == ~st3~0; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,542 INFO L290 TraceCheckUtils]: 14: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume ~send3~0 == ~id3~0; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,543 INFO L290 TraceCheckUtils]: 15: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume 0 == ~mode3~0 % 256; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,543 INFO L290 TraceCheckUtils]: 16: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume ~id1~0 != ~id2~0; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,543 INFO L290 TraceCheckUtils]: 17: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume ~id1~0 != ~id3~0; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,544 INFO L290 TraceCheckUtils]: 18: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,544 INFO L290 TraceCheckUtils]: 19: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} init_#res#1 := init_~tmp~0#1; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,545 INFO L290 TraceCheckUtils]: 20: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} main1_#t~ret21#1 := init_#res#1;assume { :end_inline_init } true;assume -2147483648 <= main1_#t~ret21#1 && main1_#t~ret21#1 <= 2147483647;main1_~i2~0#1 := main1_#t~ret21#1;havoc main1_#t~ret21#1; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,545 INFO L290 TraceCheckUtils]: 21: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume !(0 == main1_~i2~0#1); {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,545 INFO L290 TraceCheckUtils]: 22: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main1_~i2~0#1 := 0; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,546 INFO L290 TraceCheckUtils]: 23: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,546 INFO L290 TraceCheckUtils]: 24: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume !(0 != ~mode1~0 % 256); {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,547 INFO L290 TraceCheckUtils]: 25: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite5#1 := ~send1~0; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,550 INFO L290 TraceCheckUtils]: 26: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} ~p1_new~0 := (if node1_#t~ite5#1 % 256 <= 127 then node1_#t~ite5#1 % 256 else node1_#t~ite5#1 % 256 - 256);havoc node1_#t~ite5#1;~mode1~0 := 1; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,550 INFO L290 TraceCheckUtils]: 27: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,550 INFO L290 TraceCheckUtils]: 28: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume !(0 != ~mode2~0 % 256); {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,551 INFO L290 TraceCheckUtils]: 29: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite6#1 := ~send2~0; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,551 INFO L290 TraceCheckUtils]: 30: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} ~p2_new~0 := (if node2_#t~ite6#1 % 256 <= 127 then node2_#t~ite6#1 % 256 else node2_#t~ite6#1 % 256 - 256);havoc node2_#t~ite6#1;~mode2~0 := 1; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,552 INFO L290 TraceCheckUtils]: 31: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,552 INFO L290 TraceCheckUtils]: 32: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume !(0 != ~mode3~0 % 256); {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,553 INFO L290 TraceCheckUtils]: 33: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite7#1 := ~send3~0; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,553 INFO L290 TraceCheckUtils]: 34: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} ~p3_new~0 := (if node3_#t~ite7#1 % 256 <= 127 then node3_#t~ite7#1 % 256 else node3_#t~ite7#1 % 256 - 256);havoc node3_#t~ite7#1;~mode3~0 := 1; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,553 INFO L290 TraceCheckUtils]: 35: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,554 INFO L290 TraceCheckUtils]: 36: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,554 INFO L290 TraceCheckUtils]: 37: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume !(~r1~0 >= 3); {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:03,555 INFO L290 TraceCheckUtils]: 38: Hoare triple {20660#(and (< 0 (+ ~st3~0 ~st2~0 ~st1~0 1)) (<= (+ ~st3~0 ~st2~0 ~st1~0) 0))} assume !(0 == ~st1~0 + ~st2~0 + ~st3~0);check_~tmp~1#1 := 0; {20657#false} is VALID [2022-02-20 19:39:03,555 INFO L290 TraceCheckUtils]: 39: Hoare triple {20657#false} check_#res#1 := check_~tmp~1#1; {20657#false} is VALID [2022-02-20 19:39:03,555 INFO L290 TraceCheckUtils]: 40: Hoare triple {20657#false} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {20657#false} is VALID [2022-02-20 19:39:03,556 INFO L290 TraceCheckUtils]: 41: Hoare triple {20657#false} assume 0 == assert_~arg#1 % 256; {20657#false} is VALID [2022-02-20 19:39:03,556 INFO L290 TraceCheckUtils]: 42: Hoare triple {20657#false} assume !false; {20657#false} is VALID [2022-02-20 19:39:03,556 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 19:39:03,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:39:03,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010923605] [2022-02-20 19:39:03,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010923605] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:39:03,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:39:03,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-20 19:39:03,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595859515] [2022-02-20 19:39:03,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:39:03,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 43 [2022-02-20 19:39:03,557 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:39:03,558 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 19:39:03,591 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:03,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-20 19:39:03,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:39:03,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-20 19:39:03,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-20 19:39:03,592 INFO L87 Difference]: Start difference. First operand 961 states and 1744 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 19:39:05,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:05,405 INFO L93 Difference]: Finished difference Result 1146 states and 2026 transitions. [2022-02-20 19:39:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-20 19:39:05,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 43 [2022-02-20 19:39:05,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:39:05,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 19:39:05,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1627 transitions. [2022-02-20 19:39:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 19:39:05,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1627 transitions. [2022-02-20 19:39:05,419 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 1627 transitions. [2022-02-20 19:39:06,820 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 1627 edges. 1627 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:06,849 INFO L225 Difference]: With dead ends: 1146 [2022-02-20 19:39:06,849 INFO L226 Difference]: Without dead ends: 963 [2022-02-20 19:39:06,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-20 19:39:06,850 INFO L933 BasicCegarLoop]: 1529 mSDtfsCounter, 1528 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 19:39:06,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1528 Valid, 1685 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 19:39:06,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-02-20 19:39:06,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 961. [2022-02-20 19:39:06,919 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:39:06,920 INFO L82 GeneralOperation]: Start isEquivalent. First operand 963 states. Second operand has 961 states, 959 states have (on average 1.8154327424400416) internal successors, (1741), 960 states have internal predecessors, (1741), 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 19:39:06,921 INFO L74 IsIncluded]: Start isIncluded. First operand 963 states. Second operand has 961 states, 959 states have (on average 1.8154327424400416) internal successors, (1741), 960 states have internal predecessors, (1741), 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 19:39:06,922 INFO L87 Difference]: Start difference. First operand 963 states. Second operand has 961 states, 959 states have (on average 1.8154327424400416) internal successors, (1741), 960 states have internal predecessors, (1741), 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 19:39:06,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:06,951 INFO L93 Difference]: Finished difference Result 963 states and 1742 transitions. [2022-02-20 19:39:06,951 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1742 transitions. [2022-02-20 19:39:06,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:06,952 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:06,953 INFO L74 IsIncluded]: Start isIncluded. First operand has 961 states, 959 states have (on average 1.8154327424400416) internal successors, (1741), 960 states have internal predecessors, (1741), 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 963 states. [2022-02-20 19:39:06,954 INFO L87 Difference]: Start difference. First operand has 961 states, 959 states have (on average 1.8154327424400416) internal successors, (1741), 960 states have internal predecessors, (1741), 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 963 states. [2022-02-20 19:39:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:06,983 INFO L93 Difference]: Finished difference Result 963 states and 1742 transitions. [2022-02-20 19:39:06,983 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1742 transitions. [2022-02-20 19:39:06,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:06,985 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:06,985 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:39:06,985 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:39:06,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 959 states have (on average 1.8154327424400416) internal successors, (1741), 960 states have internal predecessors, (1741), 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 19:39:07,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1741 transitions. [2022-02-20 19:39:07,016 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1741 transitions. Word has length 43 [2022-02-20 19:39:07,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:39:07,016 INFO L470 AbstractCegarLoop]: Abstraction has 961 states and 1741 transitions. [2022-02-20 19:39:07,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 19:39:07,017 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1741 transitions. [2022-02-20 19:39:07,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-20 19:39:07,018 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:39:07,018 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] [2022-02-20 19:39:07,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-20 19:39:07,019 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:39:07,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:39:07,020 INFO L85 PathProgramCache]: Analyzing trace with hash -47574589, now seen corresponding path program 1 times [2022-02-20 19:39:07,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:39:07,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370901142] [2022-02-20 19:39:07,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:39:07,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:39:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:39:07,078 INFO L290 TraceCheckUtils]: 0: Hoare triple {24817#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(32, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~inputC~0 := 3;~inputF~0 := 6;~inputA~0 := 1;~inputB~0 := 2;~inputD~0 := 4;~inputE~0 := 5;~a17~0 := -124;~a5~0 := 4;~a24~0 := 15;~a2~0 := 170;~a7~0 := 13; {24817#true} is VALID [2022-02-20 19:39:07,078 INFO L290 TraceCheckUtils]: 1: Hoare triple {24817#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet38#1, main_#t~ret39#1, main_#t~ret40#1;assume -2147483648 <= main_#t~nondet38#1 && main_#t~nondet38#1 <= 2147483647; {24817#true} is VALID [2022-02-20 19:39:07,078 INFO L290 TraceCheckUtils]: 2: Hoare triple {24817#true} assume 0 != main_#t~nondet38#1;havoc main_#t~nondet38#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet8#1, main1_#t~nondet9#1, main1_#t~nondet10#1, main1_#t~nondet11#1, main1_#t~nondet12#1, main1_#t~nondet13#1, main1_#t~nondet14#1, main1_#t~nondet15#1, main1_#t~nondet16#1, main1_#t~nondet17#1, main1_#t~nondet18#1, main1_#t~nondet19#1, main1_#t~nondet20#1, main1_#t~ret21#1, main1_#t~ret22#1, main1_#t~post23#1, main1_~c1~0#1, main1_~i2~0#1;havoc main1_~c1~0#1;havoc main1_~i2~0#1;main1_~c1~0#1 := 0;assume -128 <= main1_#t~nondet8#1 && main1_#t~nondet8#1 <= 127;~r1~0 := main1_#t~nondet8#1;havoc main1_#t~nondet8#1;assume -128 <= main1_#t~nondet9#1 && main1_#t~nondet9#1 <= 127;~id1~0 := main1_#t~nondet9#1;havoc main1_#t~nondet9#1;assume -128 <= main1_#t~nondet10#1 && main1_#t~nondet10#1 <= 127;~st1~0 := main1_#t~nondet10#1;havoc main1_#t~nondet10#1;assume -128 <= main1_#t~nondet11#1 && main1_#t~nondet11#1 <= 127;~send1~0 := main1_#t~nondet11#1;havoc main1_#t~nondet11#1;~mode1~0 := main1_#t~nondet12#1;havoc main1_#t~nondet12#1;assume -128 <= main1_#t~nondet13#1 && main1_#t~nondet13#1 <= 127;~id2~0 := main1_#t~nondet13#1;havoc main1_#t~nondet13#1;assume -128 <= main1_#t~nondet14#1 && main1_#t~nondet14#1 <= 127;~st2~0 := main1_#t~nondet14#1;havoc main1_#t~nondet14#1;assume -128 <= main1_#t~nondet15#1 && main1_#t~nondet15#1 <= 127;~send2~0 := main1_#t~nondet15#1;havoc main1_#t~nondet15#1;~mode2~0 := main1_#t~nondet16#1;havoc main1_#t~nondet16#1;assume -128 <= main1_#t~nondet17#1 && main1_#t~nondet17#1 <= 127;~id3~0 := main1_#t~nondet17#1;havoc main1_#t~nondet17#1;assume -128 <= main1_#t~nondet18#1 && main1_#t~nondet18#1 <= 127;~st3~0 := main1_#t~nondet18#1;havoc main1_#t~nondet18#1;assume -128 <= main1_#t~nondet19#1 && main1_#t~nondet19#1 <= 127;~send3~0 := main1_#t~nondet19#1;havoc main1_#t~nondet19#1;~mode3~0 := main1_#t~nondet20#1;havoc main1_#t~nondet20#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; {24817#true} is VALID [2022-02-20 19:39:07,078 INFO L290 TraceCheckUtils]: 3: Hoare triple {24817#true} assume 0 == ~r1~0; {24817#true} is VALID [2022-02-20 19:39:07,079 INFO L290 TraceCheckUtils]: 4: Hoare triple {24817#true} assume ~id1~0 >= 0; {24817#true} is VALID [2022-02-20 19:39:07,079 INFO L290 TraceCheckUtils]: 5: Hoare triple {24817#true} assume 0 == ~st1~0; {24817#true} is VALID [2022-02-20 19:39:07,079 INFO L290 TraceCheckUtils]: 6: Hoare triple {24817#true} assume ~send1~0 == ~id1~0; {24817#true} is VALID [2022-02-20 19:39:07,079 INFO L290 TraceCheckUtils]: 7: Hoare triple {24817#true} assume 0 == ~mode1~0 % 256; {24817#true} is VALID [2022-02-20 19:39:07,079 INFO L290 TraceCheckUtils]: 8: Hoare triple {24817#true} assume ~id2~0 >= 0; {24817#true} is VALID [2022-02-20 19:39:07,080 INFO L290 TraceCheckUtils]: 9: Hoare triple {24817#true} assume 0 == ~st2~0; {24817#true} is VALID [2022-02-20 19:39:07,080 INFO L290 TraceCheckUtils]: 10: Hoare triple {24817#true} assume ~send2~0 == ~id2~0; {24817#true} is VALID [2022-02-20 19:39:07,080 INFO L290 TraceCheckUtils]: 11: Hoare triple {24817#true} assume 0 == ~mode2~0 % 256; {24817#true} is VALID [2022-02-20 19:39:07,080 INFO L290 TraceCheckUtils]: 12: Hoare triple {24817#true} assume ~id3~0 >= 0; {24817#true} is VALID [2022-02-20 19:39:07,080 INFO L290 TraceCheckUtils]: 13: Hoare triple {24817#true} assume 0 == ~st3~0; {24817#true} is VALID [2022-02-20 19:39:07,081 INFO L290 TraceCheckUtils]: 14: Hoare triple {24817#true} assume ~send3~0 == ~id3~0; {24817#true} is VALID [2022-02-20 19:39:07,081 INFO L290 TraceCheckUtils]: 15: Hoare triple {24817#true} assume 0 == ~mode3~0 % 256; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,082 INFO L290 TraceCheckUtils]: 16: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} assume ~id1~0 != ~id2~0; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,082 INFO L290 TraceCheckUtils]: 17: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} assume ~id1~0 != ~id3~0; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,082 INFO L290 TraceCheckUtils]: 18: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,087 INFO L290 TraceCheckUtils]: 19: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} init_#res#1 := init_~tmp~0#1; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,087 INFO L290 TraceCheckUtils]: 20: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} main1_#t~ret21#1 := init_#res#1;assume { :end_inline_init } true;assume -2147483648 <= main1_#t~ret21#1 && main1_#t~ret21#1 <= 2147483647;main1_~i2~0#1 := main1_#t~ret21#1;havoc main1_#t~ret21#1; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,088 INFO L290 TraceCheckUtils]: 21: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} assume !(0 == main1_~i2~0#1); {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,089 INFO L290 TraceCheckUtils]: 22: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main1_~i2~0#1 := 0; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,092 INFO L290 TraceCheckUtils]: 23: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,093 INFO L290 TraceCheckUtils]: 24: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} assume !(0 != ~mode1~0 % 256); {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,094 INFO L290 TraceCheckUtils]: 25: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite5#1 := ~send1~0; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,094 INFO L290 TraceCheckUtils]: 26: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} ~p1_new~0 := (if node1_#t~ite5#1 % 256 <= 127 then node1_#t~ite5#1 % 256 else node1_#t~ite5#1 % 256 - 256);havoc node1_#t~ite5#1;~mode1~0 := 1; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,095 INFO L290 TraceCheckUtils]: 27: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,095 INFO L290 TraceCheckUtils]: 28: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} assume !(0 != ~mode2~0 % 256); {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,096 INFO L290 TraceCheckUtils]: 29: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite6#1 := ~send2~0; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,096 INFO L290 TraceCheckUtils]: 30: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} ~p2_new~0 := (if node2_#t~ite6#1 % 256 <= 127 then node2_#t~ite6#1 % 256 else node2_#t~ite6#1 % 256 - 256);havoc node2_#t~ite6#1;~mode2~0 := 1; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,097 INFO L290 TraceCheckUtils]: 31: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} is VALID [2022-02-20 19:39:07,097 INFO L290 TraceCheckUtils]: 32: Hoare triple {24819#(= (+ (* (- 256) (div ~mode3~0 256)) ~mode3~0) 0)} assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; {24818#false} is VALID [2022-02-20 19:39:07,098 INFO L290 TraceCheckUtils]: 33: Hoare triple {24818#false} assume node3_~m3~0#1 != ~nomsg~0; {24818#false} is VALID [2022-02-20 19:39:07,098 INFO L290 TraceCheckUtils]: 34: Hoare triple {24818#false} assume !(node3_~m3~0#1 > ~id3~0); {24818#false} is VALID [2022-02-20 19:39:07,100 INFO L290 TraceCheckUtils]: 35: Hoare triple {24818#false} assume node3_~m3~0#1 == ~id3~0;~st3~0 := 1; {24818#false} is VALID [2022-02-20 19:39:07,101 INFO L290 TraceCheckUtils]: 36: Hoare triple {24818#false} ~mode3~0 := 0; {24818#false} is VALID [2022-02-20 19:39:07,101 INFO L290 TraceCheckUtils]: 37: Hoare triple {24818#false} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {24818#false} is VALID [2022-02-20 19:39:07,101 INFO L290 TraceCheckUtils]: 38: Hoare triple {24818#false} assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; {24818#false} is VALID [2022-02-20 19:39:07,101 INFO L290 TraceCheckUtils]: 39: Hoare triple {24818#false} check_#res#1 := check_~tmp~1#1; {24818#false} is VALID [2022-02-20 19:39:07,101 INFO L290 TraceCheckUtils]: 40: Hoare triple {24818#false} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {24818#false} is VALID [2022-02-20 19:39:07,101 INFO L290 TraceCheckUtils]: 41: Hoare triple {24818#false} assume 0 == assert_~arg#1 % 256; {24818#false} is VALID [2022-02-20 19:39:07,101 INFO L290 TraceCheckUtils]: 42: Hoare triple {24818#false} assume !false; {24818#false} is VALID [2022-02-20 19:39:07,102 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 19:39:07,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:39:07,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370901142] [2022-02-20 19:39:07,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370901142] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:39:07,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:39:07,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 19:39:07,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016688604] [2022-02-20 19:39:07,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:39:07,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2022-02-20 19:39:07,105 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:39:07,105 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:07,131 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:07,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 19:39:07,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:39:07,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 19:39:07,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 19:39:07,132 INFO L87 Difference]: Start difference. First operand 961 states and 1741 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:08,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:08,845 INFO L93 Difference]: Finished difference Result 1291 states and 2237 transitions. [2022-02-20 19:39:08,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 19:39:08,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2022-02-20 19:39:08,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:39:08,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1619 transitions. [2022-02-20 19:39:08,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1619 transitions. [2022-02-20 19:39:08,859 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 1619 transitions. [2022-02-20 19:39:10,248 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 1619 edges. 1619 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:10,288 INFO L225 Difference]: With dead ends: 1291 [2022-02-20 19:39:10,291 INFO L226 Difference]: Without dead ends: 1108 [2022-02-20 19:39:10,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 19:39:10,292 INFO L933 BasicCegarLoop]: 1541 mSDtfsCounter, 1477 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 19:39:10,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1477 Valid, 1603 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 19:39:10,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2022-02-20 19:39:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1106. [2022-02-20 19:39:10,401 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:39:10,403 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1108 states. Second operand has 1106 states, 1104 states have (on average 1.7681159420289856) internal successors, (1952), 1105 states have internal predecessors, (1952), 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 19:39:10,403 INFO L74 IsIncluded]: Start isIncluded. First operand 1108 states. Second operand has 1106 states, 1104 states have (on average 1.7681159420289856) internal successors, (1952), 1105 states have internal predecessors, (1952), 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 19:39:10,404 INFO L87 Difference]: Start difference. First operand 1108 states. Second operand has 1106 states, 1104 states have (on average 1.7681159420289856) internal successors, (1952), 1105 states have internal predecessors, (1952), 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 19:39:10,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:10,439 INFO L93 Difference]: Finished difference Result 1108 states and 1953 transitions. [2022-02-20 19:39:10,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1953 transitions. [2022-02-20 19:39:10,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:10,440 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:10,442 INFO L74 IsIncluded]: Start isIncluded. First operand has 1106 states, 1104 states have (on average 1.7681159420289856) internal successors, (1952), 1105 states have internal predecessors, (1952), 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 1108 states. [2022-02-20 19:39:10,443 INFO L87 Difference]: Start difference. First operand has 1106 states, 1104 states have (on average 1.7681159420289856) internal successors, (1952), 1105 states have internal predecessors, (1952), 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 1108 states. [2022-02-20 19:39:10,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:10,479 INFO L93 Difference]: Finished difference Result 1108 states and 1953 transitions. [2022-02-20 19:39:10,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1953 transitions. [2022-02-20 19:39:10,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:10,481 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:10,481 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:39:10,481 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:39:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1104 states have (on average 1.7681159420289856) internal successors, (1952), 1105 states have internal predecessors, (1952), 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 19:39:10,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1952 transitions. [2022-02-20 19:39:10,520 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1952 transitions. Word has length 43 [2022-02-20 19:39:10,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:39:10,521 INFO L470 AbstractCegarLoop]: Abstraction has 1106 states and 1952 transitions. [2022-02-20 19:39:10,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1952 transitions. [2022-02-20 19:39:10,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-20 19:39:10,521 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:39:10,522 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] [2022-02-20 19:39:10,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-20 19:39:10,522 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:39:10,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:39:10,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1199933027, now seen corresponding path program 1 times [2022-02-20 19:39:10,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:39:10,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002913990] [2022-02-20 19:39:10,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:39:10,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:39:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:39:10,551 INFO L290 TraceCheckUtils]: 0: Hoare triple {29624#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(32, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~inputC~0 := 3;~inputF~0 := 6;~inputA~0 := 1;~inputB~0 := 2;~inputD~0 := 4;~inputE~0 := 5;~a17~0 := -124;~a5~0 := 4;~a24~0 := 15;~a2~0 := 170;~a7~0 := 13; {29624#true} is VALID [2022-02-20 19:39:10,551 INFO L290 TraceCheckUtils]: 1: Hoare triple {29624#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet38#1, main_#t~ret39#1, main_#t~ret40#1;assume -2147483648 <= main_#t~nondet38#1 && main_#t~nondet38#1 <= 2147483647; {29624#true} is VALID [2022-02-20 19:39:10,551 INFO L290 TraceCheckUtils]: 2: Hoare triple {29624#true} assume 0 != main_#t~nondet38#1;havoc main_#t~nondet38#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet8#1, main1_#t~nondet9#1, main1_#t~nondet10#1, main1_#t~nondet11#1, main1_#t~nondet12#1, main1_#t~nondet13#1, main1_#t~nondet14#1, main1_#t~nondet15#1, main1_#t~nondet16#1, main1_#t~nondet17#1, main1_#t~nondet18#1, main1_#t~nondet19#1, main1_#t~nondet20#1, main1_#t~ret21#1, main1_#t~ret22#1, main1_#t~post23#1, main1_~c1~0#1, main1_~i2~0#1;havoc main1_~c1~0#1;havoc main1_~i2~0#1;main1_~c1~0#1 := 0;assume -128 <= main1_#t~nondet8#1 && main1_#t~nondet8#1 <= 127;~r1~0 := main1_#t~nondet8#1;havoc main1_#t~nondet8#1;assume -128 <= main1_#t~nondet9#1 && main1_#t~nondet9#1 <= 127;~id1~0 := main1_#t~nondet9#1;havoc main1_#t~nondet9#1;assume -128 <= main1_#t~nondet10#1 && main1_#t~nondet10#1 <= 127;~st1~0 := main1_#t~nondet10#1;havoc main1_#t~nondet10#1;assume -128 <= main1_#t~nondet11#1 && main1_#t~nondet11#1 <= 127;~send1~0 := main1_#t~nondet11#1;havoc main1_#t~nondet11#1;~mode1~0 := main1_#t~nondet12#1;havoc main1_#t~nondet12#1;assume -128 <= main1_#t~nondet13#1 && main1_#t~nondet13#1 <= 127;~id2~0 := main1_#t~nondet13#1;havoc main1_#t~nondet13#1;assume -128 <= main1_#t~nondet14#1 && main1_#t~nondet14#1 <= 127;~st2~0 := main1_#t~nondet14#1;havoc main1_#t~nondet14#1;assume -128 <= main1_#t~nondet15#1 && main1_#t~nondet15#1 <= 127;~send2~0 := main1_#t~nondet15#1;havoc main1_#t~nondet15#1;~mode2~0 := main1_#t~nondet16#1;havoc main1_#t~nondet16#1;assume -128 <= main1_#t~nondet17#1 && main1_#t~nondet17#1 <= 127;~id3~0 := main1_#t~nondet17#1;havoc main1_#t~nondet17#1;assume -128 <= main1_#t~nondet18#1 && main1_#t~nondet18#1 <= 127;~st3~0 := main1_#t~nondet18#1;havoc main1_#t~nondet18#1;assume -128 <= main1_#t~nondet19#1 && main1_#t~nondet19#1 <= 127;~send3~0 := main1_#t~nondet19#1;havoc main1_#t~nondet19#1;~mode3~0 := main1_#t~nondet20#1;havoc main1_#t~nondet20#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; {29624#true} is VALID [2022-02-20 19:39:10,551 INFO L290 TraceCheckUtils]: 3: Hoare triple {29624#true} assume 0 == ~r1~0; {29624#true} is VALID [2022-02-20 19:39:10,552 INFO L290 TraceCheckUtils]: 4: Hoare triple {29624#true} assume ~id1~0 >= 0; {29624#true} is VALID [2022-02-20 19:39:10,552 INFO L290 TraceCheckUtils]: 5: Hoare triple {29624#true} assume 0 == ~st1~0; {29624#true} is VALID [2022-02-20 19:39:10,552 INFO L290 TraceCheckUtils]: 6: Hoare triple {29624#true} assume ~send1~0 == ~id1~0; {29624#true} is VALID [2022-02-20 19:39:10,552 INFO L290 TraceCheckUtils]: 7: Hoare triple {29624#true} assume 0 == ~mode1~0 % 256; {29624#true} is VALID [2022-02-20 19:39:10,552 INFO L290 TraceCheckUtils]: 8: Hoare triple {29624#true} assume ~id2~0 >= 0; {29624#true} is VALID [2022-02-20 19:39:10,552 INFO L290 TraceCheckUtils]: 9: Hoare triple {29624#true} assume 0 == ~st2~0; {29624#true} is VALID [2022-02-20 19:39:10,552 INFO L290 TraceCheckUtils]: 10: Hoare triple {29624#true} assume ~send2~0 == ~id2~0; {29624#true} is VALID [2022-02-20 19:39:10,553 INFO L290 TraceCheckUtils]: 11: Hoare triple {29624#true} assume 0 == ~mode2~0 % 256; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,553 INFO L290 TraceCheckUtils]: 12: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume ~id3~0 >= 0; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,553 INFO L290 TraceCheckUtils]: 13: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume 0 == ~st3~0; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,554 INFO L290 TraceCheckUtils]: 14: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume ~send3~0 == ~id3~0; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,554 INFO L290 TraceCheckUtils]: 15: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume 0 == ~mode3~0 % 256; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,555 INFO L290 TraceCheckUtils]: 16: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume ~id1~0 != ~id2~0; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,555 INFO L290 TraceCheckUtils]: 17: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume ~id1~0 != ~id3~0; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,555 INFO L290 TraceCheckUtils]: 18: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,556 INFO L290 TraceCheckUtils]: 19: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} init_#res#1 := init_~tmp~0#1; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,556 INFO L290 TraceCheckUtils]: 20: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} main1_#t~ret21#1 := init_#res#1;assume { :end_inline_init } true;assume -2147483648 <= main1_#t~ret21#1 && main1_#t~ret21#1 <= 2147483647;main1_~i2~0#1 := main1_#t~ret21#1;havoc main1_#t~ret21#1; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,556 INFO L290 TraceCheckUtils]: 21: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume !(0 == main1_~i2~0#1); {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,557 INFO L290 TraceCheckUtils]: 22: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main1_~i2~0#1 := 0; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,557 INFO L290 TraceCheckUtils]: 23: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,558 INFO L290 TraceCheckUtils]: 24: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume !(0 != ~mode1~0 % 256); {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,558 INFO L290 TraceCheckUtils]: 25: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite5#1 := ~send1~0; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,558 INFO L290 TraceCheckUtils]: 26: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} ~p1_new~0 := (if node1_#t~ite5#1 % 256 <= 127 then node1_#t~ite5#1 % 256 else node1_#t~ite5#1 % 256 - 256);havoc node1_#t~ite5#1;~mode1~0 := 1; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,559 INFO L290 TraceCheckUtils]: 27: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} is VALID [2022-02-20 19:39:10,559 INFO L290 TraceCheckUtils]: 28: Hoare triple {29626#(= (+ (* (- 256) (div ~mode2~0 256)) ~mode2~0) 0)} assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; {29625#false} is VALID [2022-02-20 19:39:10,559 INFO L290 TraceCheckUtils]: 29: Hoare triple {29625#false} assume node2_~m2~0#1 != ~nomsg~0; {29625#false} is VALID [2022-02-20 19:39:10,559 INFO L290 TraceCheckUtils]: 30: Hoare triple {29625#false} assume !(node2_~m2~0#1 > ~id2~0); {29625#false} is VALID [2022-02-20 19:39:10,560 INFO L290 TraceCheckUtils]: 31: Hoare triple {29625#false} assume node2_~m2~0#1 == ~id2~0;~st2~0 := 1; {29625#false} is VALID [2022-02-20 19:39:10,560 INFO L290 TraceCheckUtils]: 32: Hoare triple {29625#false} ~mode2~0 := 0; {29625#false} is VALID [2022-02-20 19:39:10,560 INFO L290 TraceCheckUtils]: 33: Hoare triple {29625#false} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {29625#false} is VALID [2022-02-20 19:39:10,560 INFO L290 TraceCheckUtils]: 34: Hoare triple {29625#false} assume !(0 != ~mode3~0 % 256); {29625#false} is VALID [2022-02-20 19:39:10,560 INFO L290 TraceCheckUtils]: 35: Hoare triple {29625#false} assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite7#1 := ~send3~0; {29625#false} is VALID [2022-02-20 19:39:10,560 INFO L290 TraceCheckUtils]: 36: Hoare triple {29625#false} ~p3_new~0 := (if node3_#t~ite7#1 % 256 <= 127 then node3_#t~ite7#1 % 256 else node3_#t~ite7#1 % 256 - 256);havoc node3_#t~ite7#1;~mode3~0 := 1; {29625#false} is VALID [2022-02-20 19:39:10,560 INFO L290 TraceCheckUtils]: 37: Hoare triple {29625#false} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {29625#false} is VALID [2022-02-20 19:39:10,561 INFO L290 TraceCheckUtils]: 38: Hoare triple {29625#false} assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; {29625#false} is VALID [2022-02-20 19:39:10,561 INFO L290 TraceCheckUtils]: 39: Hoare triple {29625#false} check_#res#1 := check_~tmp~1#1; {29625#false} is VALID [2022-02-20 19:39:10,561 INFO L290 TraceCheckUtils]: 40: Hoare triple {29625#false} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {29625#false} is VALID [2022-02-20 19:39:10,561 INFO L290 TraceCheckUtils]: 41: Hoare triple {29625#false} assume 0 == assert_~arg#1 % 256; {29625#false} is VALID [2022-02-20 19:39:10,561 INFO L290 TraceCheckUtils]: 42: Hoare triple {29625#false} assume !false; {29625#false} is VALID [2022-02-20 19:39:10,561 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 19:39:10,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:39:10,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002913990] [2022-02-20 19:39:10,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002913990] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:39:10,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:39:10,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 19:39:10,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195917255] [2022-02-20 19:39:10,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:39:10,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2022-02-20 19:39:10,563 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:39:10,563 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:10,589 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:10,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 19:39:10,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:39:10,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 19:39:10,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 19:39:10,590 INFO L87 Difference]: Start difference. First operand 1106 states and 1952 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:12,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:12,431 INFO L93 Difference]: Finished difference Result 1690 states and 2810 transitions. [2022-02-20 19:39:12,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 19:39:12,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2022-02-20 19:39:12,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:39:12,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:12,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1619 transitions. [2022-02-20 19:39:12,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:12,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1619 transitions. [2022-02-20 19:39:12,441 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 1619 transitions. [2022-02-20 19:39:13,556 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 1619 edges. 1619 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:13,614 INFO L225 Difference]: With dead ends: 1690 [2022-02-20 19:39:13,614 INFO L226 Difference]: Without dead ends: 1362 [2022-02-20 19:39:13,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 19:39:13,616 INFO L933 BasicCegarLoop]: 1554 mSDtfsCounter, 1481 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 19:39:13,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1481 Valid, 1612 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 19:39:13,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2022-02-20 19:39:13,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1360. [2022-02-20 19:39:13,835 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:39:13,837 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1362 states. Second operand has 1360 states, 1358 states have (on average 1.6995581737849779) internal successors, (2308), 1359 states have internal predecessors, (2308), 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 19:39:13,838 INFO L74 IsIncluded]: Start isIncluded. First operand 1362 states. Second operand has 1360 states, 1358 states have (on average 1.6995581737849779) internal successors, (2308), 1359 states have internal predecessors, (2308), 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 19:39:13,840 INFO L87 Difference]: Start difference. First operand 1362 states. Second operand has 1360 states, 1358 states have (on average 1.6995581737849779) internal successors, (2308), 1359 states have internal predecessors, (2308), 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 19:39:13,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:13,889 INFO L93 Difference]: Finished difference Result 1362 states and 2309 transitions. [2022-02-20 19:39:13,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 2309 transitions. [2022-02-20 19:39:13,891 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:13,891 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:13,892 INFO L74 IsIncluded]: Start isIncluded. First operand has 1360 states, 1358 states have (on average 1.6995581737849779) internal successors, (2308), 1359 states have internal predecessors, (2308), 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 1362 states. [2022-02-20 19:39:13,893 INFO L87 Difference]: Start difference. First operand has 1360 states, 1358 states have (on average 1.6995581737849779) internal successors, (2308), 1359 states have internal predecessors, (2308), 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 1362 states. [2022-02-20 19:39:13,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:13,944 INFO L93 Difference]: Finished difference Result 1362 states and 2309 transitions. [2022-02-20 19:39:13,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 2309 transitions. [2022-02-20 19:39:13,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:13,946 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:13,946 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:39:13,946 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:39:13,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1358 states have (on average 1.6995581737849779) internal successors, (2308), 1359 states have internal predecessors, (2308), 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 19:39:13,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 2308 transitions. [2022-02-20 19:39:14,000 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 2308 transitions. Word has length 43 [2022-02-20 19:39:14,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:39:14,000 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 2308 transitions. [2022-02-20 19:39:14,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:39:14,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 2308 transitions. [2022-02-20 19:39:14,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-20 19:39:14,000 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:39:14,001 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] [2022-02-20 19:39:14,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-20 19:39:14,001 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:39:14,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:39:14,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1511296967, now seen corresponding path program 1 times [2022-02-20 19:39:14,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:39:14,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479852251] [2022-02-20 19:39:14,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:39:14,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:39:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:39:14,087 INFO L290 TraceCheckUtils]: 0: Hoare triple {35767#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(32, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~inputC~0 := 3;~inputF~0 := 6;~inputA~0 := 1;~inputB~0 := 2;~inputD~0 := 4;~inputE~0 := 5;~a17~0 := -124;~a5~0 := 4;~a24~0 := 15;~a2~0 := 170;~a7~0 := 13; {35767#true} is VALID [2022-02-20 19:39:14,088 INFO L290 TraceCheckUtils]: 1: Hoare triple {35767#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet38#1, main_#t~ret39#1, main_#t~ret40#1;assume -2147483648 <= main_#t~nondet38#1 && main_#t~nondet38#1 <= 2147483647; {35767#true} is VALID [2022-02-20 19:39:14,089 INFO L290 TraceCheckUtils]: 2: Hoare triple {35767#true} assume 0 != main_#t~nondet38#1;havoc main_#t~nondet38#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet8#1, main1_#t~nondet9#1, main1_#t~nondet10#1, main1_#t~nondet11#1, main1_#t~nondet12#1, main1_#t~nondet13#1, main1_#t~nondet14#1, main1_#t~nondet15#1, main1_#t~nondet16#1, main1_#t~nondet17#1, main1_#t~nondet18#1, main1_#t~nondet19#1, main1_#t~nondet20#1, main1_#t~ret21#1, main1_#t~ret22#1, main1_#t~post23#1, main1_~c1~0#1, main1_~i2~0#1;havoc main1_~c1~0#1;havoc main1_~i2~0#1;main1_~c1~0#1 := 0;assume -128 <= main1_#t~nondet8#1 && main1_#t~nondet8#1 <= 127;~r1~0 := main1_#t~nondet8#1;havoc main1_#t~nondet8#1;assume -128 <= main1_#t~nondet9#1 && main1_#t~nondet9#1 <= 127;~id1~0 := main1_#t~nondet9#1;havoc main1_#t~nondet9#1;assume -128 <= main1_#t~nondet10#1 && main1_#t~nondet10#1 <= 127;~st1~0 := main1_#t~nondet10#1;havoc main1_#t~nondet10#1;assume -128 <= main1_#t~nondet11#1 && main1_#t~nondet11#1 <= 127;~send1~0 := main1_#t~nondet11#1;havoc main1_#t~nondet11#1;~mode1~0 := main1_#t~nondet12#1;havoc main1_#t~nondet12#1;assume -128 <= main1_#t~nondet13#1 && main1_#t~nondet13#1 <= 127;~id2~0 := main1_#t~nondet13#1;havoc main1_#t~nondet13#1;assume -128 <= main1_#t~nondet14#1 && main1_#t~nondet14#1 <= 127;~st2~0 := main1_#t~nondet14#1;havoc main1_#t~nondet14#1;assume -128 <= main1_#t~nondet15#1 && main1_#t~nondet15#1 <= 127;~send2~0 := main1_#t~nondet15#1;havoc main1_#t~nondet15#1;~mode2~0 := main1_#t~nondet16#1;havoc main1_#t~nondet16#1;assume -128 <= main1_#t~nondet17#1 && main1_#t~nondet17#1 <= 127;~id3~0 := main1_#t~nondet17#1;havoc main1_#t~nondet17#1;assume -128 <= main1_#t~nondet18#1 && main1_#t~nondet18#1 <= 127;~st3~0 := main1_#t~nondet18#1;havoc main1_#t~nondet18#1;assume -128 <= main1_#t~nondet19#1 && main1_#t~nondet19#1 <= 127;~send3~0 := main1_#t~nondet19#1;havoc main1_#t~nondet19#1;~mode3~0 := main1_#t~nondet20#1;havoc main1_#t~nondet20#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; {35767#true} is VALID [2022-02-20 19:39:14,089 INFO L290 TraceCheckUtils]: 3: Hoare triple {35767#true} assume 0 == ~r1~0; {35767#true} is VALID [2022-02-20 19:39:14,089 INFO L290 TraceCheckUtils]: 4: Hoare triple {35767#true} assume ~id1~0 >= 0; {35767#true} is VALID [2022-02-20 19:39:14,089 INFO L290 TraceCheckUtils]: 5: Hoare triple {35767#true} assume 0 == ~st1~0; {35767#true} is VALID [2022-02-20 19:39:14,089 INFO L290 TraceCheckUtils]: 6: Hoare triple {35767#true} assume ~send1~0 == ~id1~0; {35767#true} is VALID [2022-02-20 19:39:14,089 INFO L290 TraceCheckUtils]: 7: Hoare triple {35767#true} assume 0 == ~mode1~0 % 256; {35767#true} is VALID [2022-02-20 19:39:14,089 INFO L290 TraceCheckUtils]: 8: Hoare triple {35767#true} assume ~id2~0 >= 0; {35767#true} is VALID [2022-02-20 19:39:14,090 INFO L290 TraceCheckUtils]: 9: Hoare triple {35767#true} assume 0 == ~st2~0; {35767#true} is VALID [2022-02-20 19:39:14,090 INFO L290 TraceCheckUtils]: 10: Hoare triple {35767#true} assume ~send2~0 == ~id2~0; {35767#true} is VALID [2022-02-20 19:39:14,090 INFO L290 TraceCheckUtils]: 11: Hoare triple {35767#true} assume 0 == ~mode2~0 % 256; {35767#true} is VALID [2022-02-20 19:39:14,090 INFO L290 TraceCheckUtils]: 12: Hoare triple {35767#true} assume ~id3~0 >= 0; {35767#true} is VALID [2022-02-20 19:39:14,090 INFO L290 TraceCheckUtils]: 13: Hoare triple {35767#true} assume 0 == ~st3~0; {35767#true} is VALID [2022-02-20 19:39:14,090 INFO L290 TraceCheckUtils]: 14: Hoare triple {35767#true} assume ~send3~0 == ~id3~0; {35767#true} is VALID [2022-02-20 19:39:14,090 INFO L290 TraceCheckUtils]: 15: Hoare triple {35767#true} assume 0 == ~mode3~0 % 256; {35767#true} is VALID [2022-02-20 19:39:14,090 INFO L290 TraceCheckUtils]: 16: Hoare triple {35767#true} assume ~id1~0 != ~id2~0; {35767#true} is VALID [2022-02-20 19:39:14,091 INFO L290 TraceCheckUtils]: 17: Hoare triple {35767#true} assume ~id1~0 != ~id3~0; {35767#true} is VALID [2022-02-20 19:39:14,091 INFO L290 TraceCheckUtils]: 18: Hoare triple {35767#true} assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; {35769#(= |ULTIMATE.start_init_~tmp~0#1| 1)} is VALID [2022-02-20 19:39:14,091 INFO L290 TraceCheckUtils]: 19: Hoare triple {35769#(= |ULTIMATE.start_init_~tmp~0#1| 1)} init_#res#1 := init_~tmp~0#1; {35770#(= |ULTIMATE.start_init_#res#1| 1)} is VALID [2022-02-20 19:39:14,092 INFO L290 TraceCheckUtils]: 20: Hoare triple {35770#(= |ULTIMATE.start_init_#res#1| 1)} main1_#t~ret21#1 := init_#res#1;assume { :end_inline_init } true;assume -2147483648 <= main1_#t~ret21#1 && main1_#t~ret21#1 <= 2147483647;main1_~i2~0#1 := main1_#t~ret21#1;havoc main1_#t~ret21#1; {35771#(= |ULTIMATE.start_main1_~i2~0#1| 1)} is VALID [2022-02-20 19:39:14,092 INFO L290 TraceCheckUtils]: 21: Hoare triple {35771#(= |ULTIMATE.start_main1_~i2~0#1| 1)} assume !(0 == main1_~i2~0#1); {35767#true} is VALID [2022-02-20 19:39:14,092 INFO L290 TraceCheckUtils]: 22: Hoare triple {35767#true} ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main1_~i2~0#1 := 0; {35767#true} is VALID [2022-02-20 19:39:14,092 INFO L290 TraceCheckUtils]: 23: Hoare triple {35767#true} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {35767#true} is VALID [2022-02-20 19:39:14,092 INFO L290 TraceCheckUtils]: 24: Hoare triple {35767#true} assume !(0 != ~mode1~0 % 256); {35767#true} is VALID [2022-02-20 19:39:14,092 INFO L290 TraceCheckUtils]: 25: Hoare triple {35767#true} assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite5#1 := ~send1~0; {35767#true} is VALID [2022-02-20 19:39:14,092 INFO L290 TraceCheckUtils]: 26: Hoare triple {35767#true} ~p1_new~0 := (if node1_#t~ite5#1 % 256 <= 127 then node1_#t~ite5#1 % 256 else node1_#t~ite5#1 % 256 - 256);havoc node1_#t~ite5#1;~mode1~0 := 1; {35767#true} is VALID [2022-02-20 19:39:14,093 INFO L290 TraceCheckUtils]: 27: Hoare triple {35767#true} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {35767#true} is VALID [2022-02-20 19:39:14,093 INFO L290 TraceCheckUtils]: 28: Hoare triple {35767#true} assume !(0 != ~mode2~0 % 256); {35767#true} is VALID [2022-02-20 19:39:14,093 INFO L290 TraceCheckUtils]: 29: Hoare triple {35767#true} assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite6#1 := ~send2~0; {35767#true} is VALID [2022-02-20 19:39:14,093 INFO L290 TraceCheckUtils]: 30: Hoare triple {35767#true} ~p2_new~0 := (if node2_#t~ite6#1 % 256 <= 127 then node2_#t~ite6#1 % 256 else node2_#t~ite6#1 % 256 - 256);havoc node2_#t~ite6#1;~mode2~0 := 1; {35767#true} is VALID [2022-02-20 19:39:14,093 INFO L290 TraceCheckUtils]: 31: Hoare triple {35767#true} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {35767#true} is VALID [2022-02-20 19:39:14,094 INFO L290 TraceCheckUtils]: 32: Hoare triple {35767#true} assume !(0 != ~mode3~0 % 256); {35767#true} is VALID [2022-02-20 19:39:14,094 INFO L290 TraceCheckUtils]: 33: Hoare triple {35767#true} assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite7#1 := ~send3~0; {35767#true} is VALID [2022-02-20 19:39:14,098 INFO L290 TraceCheckUtils]: 34: Hoare triple {35767#true} ~p3_new~0 := (if node3_#t~ite7#1 % 256 <= 127 then node3_#t~ite7#1 % 256 else node3_#t~ite7#1 % 256 - 256);havoc node3_#t~ite7#1;~mode3~0 := 1; {35767#true} is VALID [2022-02-20 19:39:14,098 INFO L290 TraceCheckUtils]: 35: Hoare triple {35767#true} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {35767#true} is VALID [2022-02-20 19:39:14,098 INFO L290 TraceCheckUtils]: 36: Hoare triple {35767#true} assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; {35767#true} is VALID [2022-02-20 19:39:14,098 INFO L290 TraceCheckUtils]: 37: Hoare triple {35767#true} assume !(~r1~0 >= 3); {35767#true} is VALID [2022-02-20 19:39:14,098 INFO L290 TraceCheckUtils]: 38: Hoare triple {35767#true} assume 0 == ~st1~0 + ~st2~0 + ~st3~0; {35767#true} is VALID [2022-02-20 19:39:14,099 INFO L290 TraceCheckUtils]: 39: Hoare triple {35767#true} assume ~r1~0 < 3;check_~tmp~1#1 := 1; {35772#(not (= |ULTIMATE.start_check_~tmp~1#1| 0))} is VALID [2022-02-20 19:39:14,099 INFO L290 TraceCheckUtils]: 40: Hoare triple {35772#(not (= |ULTIMATE.start_check_~tmp~1#1| 0))} check_#res#1 := check_~tmp~1#1; {35773#(not (= 0 |ULTIMATE.start_check_#res#1|))} is VALID [2022-02-20 19:39:14,100 INFO L290 TraceCheckUtils]: 41: Hoare triple {35773#(not (= 0 |ULTIMATE.start_check_#res#1|))} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {35774#(and (<= (div |ULTIMATE.start_assert_~arg#1| 256) 0) (<= 1 |ULTIMATE.start_assert_~arg#1|))} is VALID [2022-02-20 19:39:14,100 INFO L290 TraceCheckUtils]: 42: Hoare triple {35774#(and (<= (div |ULTIMATE.start_assert_~arg#1| 256) 0) (<= 1 |ULTIMATE.start_assert_~arg#1|))} assume 0 == assert_~arg#1 % 256; {35768#false} is VALID [2022-02-20 19:39:14,100 INFO L290 TraceCheckUtils]: 43: Hoare triple {35768#false} assume !false; {35768#false} is VALID [2022-02-20 19:39:14,100 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 19:39:14,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:39:14,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479852251] [2022-02-20 19:39:14,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479852251] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:39:14,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:39:14,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-20 19:39:14,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25043917] [2022-02-20 19:39:14,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:39:14,102 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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 44 [2022-02-20 19:39:14,102 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:39:14,102 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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 19:39:14,126 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:14,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-20 19:39:14,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:39:14,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-20 19:39:14,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-20 19:39:14,127 INFO L87 Difference]: Start difference. First operand 1360 states and 2308 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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 19:39:21,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:21,362 INFO L93 Difference]: Finished difference Result 1883 states and 3036 transitions. [2022-02-20 19:39:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-20 19:39:21,362 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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 44 [2022-02-20 19:39:21,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:39:21,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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 19:39:21,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1577 transitions. [2022-02-20 19:39:21,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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 19:39:21,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1577 transitions. [2022-02-20 19:39:21,371 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 1577 transitions. [2022-02-20 19:39:22,553 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 1577 edges. 1577 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:22,666 INFO L225 Difference]: With dead ends: 1883 [2022-02-20 19:39:22,666 INFO L226 Difference]: Without dead ends: 1881 [2022-02-20 19:39:22,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2022-02-20 19:39:22,667 INFO L933 BasicCegarLoop]: 1531 mSDtfsCounter, 331 mSDsluCounter, 8972 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 10503 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 19:39:22,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 10503 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 19:39:22,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2022-02-20 19:39:22,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 1408. [2022-02-20 19:39:22,945 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:39:22,946 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1881 states. Second operand has 1408 states, 1406 states have (on average 1.6728307254623045) internal successors, (2352), 1407 states have internal predecessors, (2352), 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 19:39:22,948 INFO L74 IsIncluded]: Start isIncluded. First operand 1881 states. Second operand has 1408 states, 1406 states have (on average 1.6728307254623045) internal successors, (2352), 1407 states have internal predecessors, (2352), 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 19:39:22,949 INFO L87 Difference]: Start difference. First operand 1881 states. Second operand has 1408 states, 1406 states have (on average 1.6728307254623045) internal successors, (2352), 1407 states have internal predecessors, (2352), 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 19:39:23,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:23,149 INFO L93 Difference]: Finished difference Result 1881 states and 3015 transitions. [2022-02-20 19:39:23,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 3015 transitions. [2022-02-20 19:39:23,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:23,151 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:23,153 INFO L74 IsIncluded]: Start isIncluded. First operand has 1408 states, 1406 states have (on average 1.6728307254623045) internal successors, (2352), 1407 states have internal predecessors, (2352), 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 1881 states. [2022-02-20 19:39:23,154 INFO L87 Difference]: Start difference. First operand has 1408 states, 1406 states have (on average 1.6728307254623045) internal successors, (2352), 1407 states have internal predecessors, (2352), 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 1881 states. [2022-02-20 19:39:23,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:23,259 INFO L93 Difference]: Finished difference Result 1881 states and 3015 transitions. [2022-02-20 19:39:23,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 3015 transitions. [2022-02-20 19:39:23,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:23,262 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:23,262 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:39:23,262 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:39:23,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1406 states have (on average 1.6728307254623045) internal successors, (2352), 1407 states have internal predecessors, (2352), 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 19:39:23,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 2352 transitions. [2022-02-20 19:39:23,323 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 2352 transitions. Word has length 44 [2022-02-20 19:39:23,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:39:23,323 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 2352 transitions. [2022-02-20 19:39:23,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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 19:39:23,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 2352 transitions. [2022-02-20 19:39:23,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-02-20 19:39:23,324 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:39:23,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 19:39:23,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-20 19:39:23,325 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:39:23,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:39:23,325 INFO L85 PathProgramCache]: Analyzing trace with hash -105607243, now seen corresponding path program 1 times [2022-02-20 19:39:23,325 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:39:23,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376860342] [2022-02-20 19:39:23,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:39:23,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:39:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:39:23,398 INFO L290 TraceCheckUtils]: 0: Hoare triple {43305#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(32, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~inputC~0 := 3;~inputF~0 := 6;~inputA~0 := 1;~inputB~0 := 2;~inputD~0 := 4;~inputE~0 := 5;~a17~0 := -124;~a5~0 := 4;~a24~0 := 15;~a2~0 := 170;~a7~0 := 13; {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,399 INFO L290 TraceCheckUtils]: 1: Hoare triple {43307#(<= 15 ~a24~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet38#1, main_#t~ret39#1, main_#t~ret40#1;assume -2147483648 <= main_#t~nondet38#1 && main_#t~nondet38#1 <= 2147483647; {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,399 INFO L290 TraceCheckUtils]: 2: Hoare triple {43307#(<= 15 ~a24~0)} assume !(0 != main_#t~nondet38#1);havoc main_#t~nondet38#1;assume { :begin_inline_main2 } true;havoc main2_#res#1;havoc main2_#t~nondet36#1, main2_#t~ret37#1, main2_~input~0#1, main2_~output~0#1;main2_~output~0#1 := -1; {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,399 INFO L290 TraceCheckUtils]: 3: Hoare triple {43307#(<= 15 ~a24~0)} assume !false;havoc main2_~input~0#1;assume -2147483648 <= main2_#t~nondet36#1 && main2_#t~nondet36#1 <= 2147483647;main2_~input~0#1 := main2_#t~nondet36#1;havoc main2_#t~nondet36#1; {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,400 INFO L290 TraceCheckUtils]: 4: Hoare triple {43307#(<= 15 ~a24~0)} assume !(((((1 != main2_~input~0#1 && 2 != main2_~input~0#1) && 3 != main2_~input~0#1) && 4 != main2_~input~0#1) && 5 != main2_~input~0#1) && 6 != main2_~input~0#1);assume { :begin_inline_calculate_output } true;calculate_output_#in~input#1 := main2_~input~0#1;havoc calculate_output_#res#1;havoc calculate_output_#t~ret33#1, calculate_output_~input#1;calculate_output_~input#1 := calculate_output_#in~input#1; {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,400 INFO L290 TraceCheckUtils]: 5: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && 111 < ~a17~0 && 255 >= ~a17~0) && 13 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,400 INFO L290 TraceCheckUtils]: 6: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 13 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,401 INFO L290 TraceCheckUtils]: 7: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && 111 < ~a17~0 && 255 >= ~a17~0) && 14 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,401 INFO L290 TraceCheckUtils]: 8: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && -108 < ~a17~0 && 111 >= ~a17~0) && 13 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,401 INFO L290 TraceCheckUtils]: 9: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 14 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,401 INFO L290 TraceCheckUtils]: 10: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && -108 < ~a17~0 && 111 >= ~a17~0) && 14 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,402 INFO L290 TraceCheckUtils]: 11: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && 255 < ~a17~0) && 14 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,402 INFO L290 TraceCheckUtils]: 12: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 13 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,402 INFO L290 TraceCheckUtils]: 13: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && 111 < ~a17~0 && 255 >= ~a17~0) && 14 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,403 INFO L290 TraceCheckUtils]: 14: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 13 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,403 INFO L290 TraceCheckUtils]: 15: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && 255 < ~a17~0) && 15 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,403 INFO L290 TraceCheckUtils]: 16: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 15 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,403 INFO L290 TraceCheckUtils]: 17: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && -108 < ~a17~0 && 111 >= ~a17~0) && 14 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,404 INFO L290 TraceCheckUtils]: 18: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && -108 < ~a17~0 && 111 >= ~a17~0) && 13 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,404 INFO L290 TraceCheckUtils]: 19: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && -108 < ~a17~0 && 111 >= ~a17~0) && 15 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,404 INFO L290 TraceCheckUtils]: 20: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && -108 < ~a17~0 && 111 >= ~a17~0) && 13 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,405 INFO L290 TraceCheckUtils]: 21: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && 255 < ~a17~0) && 14 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,405 INFO L290 TraceCheckUtils]: 22: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && 111 < ~a17~0 && 255 >= ~a17~0) && 13 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,405 INFO L290 TraceCheckUtils]: 23: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && -108 < ~a17~0 && 111 >= ~a17~0) && 13 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,406 INFO L290 TraceCheckUtils]: 24: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && 111 < ~a17~0 && 255 >= ~a17~0) && 15 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,406 INFO L290 TraceCheckUtils]: 25: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && 111 < ~a17~0 && 255 >= ~a17~0) && 13 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,406 INFO L290 TraceCheckUtils]: 26: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && 255 < ~a17~0) && 13 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,406 INFO L290 TraceCheckUtils]: 27: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 14 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,407 INFO L290 TraceCheckUtils]: 28: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && 255 < ~a17~0) && 13 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,407 INFO L290 TraceCheckUtils]: 29: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && -108 < ~a17~0 && 111 >= ~a17~0) && 14 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,407 INFO L290 TraceCheckUtils]: 30: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && -108 < ~a17~0 && 111 >= ~a17~0) && 15 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,408 INFO L290 TraceCheckUtils]: 31: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && 111 < ~a17~0 && 255 >= ~a17~0) && 14 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,408 INFO L290 TraceCheckUtils]: 32: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && 111 < ~a17~0 && 255 >= ~a17~0) && 14 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,408 INFO L290 TraceCheckUtils]: 33: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && 255 < ~a17~0) && 14 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,408 INFO L290 TraceCheckUtils]: 34: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 15 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,409 INFO L290 TraceCheckUtils]: 35: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 13 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,409 INFO L290 TraceCheckUtils]: 36: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && 255 < ~a17~0) && 14 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,409 INFO L290 TraceCheckUtils]: 37: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 14 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,410 INFO L290 TraceCheckUtils]: 38: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 14 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,410 INFO L290 TraceCheckUtils]: 39: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && 111 < ~a17~0 && 255 >= ~a17~0) && 14 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,410 INFO L290 TraceCheckUtils]: 40: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && 111 < ~a17~0 && 255 >= ~a17~0) && 13 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,410 INFO L290 TraceCheckUtils]: 41: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((14 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 14 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,411 INFO L290 TraceCheckUtils]: 42: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && 255 < ~a17~0) && 15 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,411 INFO L290 TraceCheckUtils]: 43: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 15 == ~a24~0) && 4 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,411 INFO L290 TraceCheckUtils]: 44: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((12 == ~a7~0 && ~a2~0 <= 189) && -108 < ~a17~0 && 111 >= ~a17~0) && 15 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,411 INFO L290 TraceCheckUtils]: 45: Hoare triple {43307#(<= 15 ~a24~0)} assume !((((13 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 15 == ~a24~0) && 3 == ~a5~0); {43307#(<= 15 ~a24~0)} is VALID [2022-02-20 19:39:23,412 INFO L290 TraceCheckUtils]: 46: Hoare triple {43307#(<= 15 ~a24~0)} assume (((14 == ~a7~0 && ~a2~0 <= 189) && ~a17~0 <= -108) && 13 == ~a24~0) && 3 == ~a5~0; {43306#false} is VALID [2022-02-20 19:39:23,412 INFO L290 TraceCheckUtils]: 47: Hoare triple {43306#false} assume !false; {43306#false} is VALID [2022-02-20 19:39:23,412 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 19:39:23,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:39:23,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376860342] [2022-02-20 19:39:23,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376860342] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:39:23,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:39:23,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 19:39:23,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532950133] [2022-02-20 19:39:23,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:39:23,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-02-20 19:39:23,414 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:39:23,414 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 19:39:23,435 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:23,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 19:39:23,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:39:23,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 19:39:23,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 19:39:23,436 INFO L87 Difference]: Start difference. First operand 1408 states and 2352 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 19:39:28,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:28,546 INFO L93 Difference]: Finished difference Result 2912 states and 5225 transitions. [2022-02-20 19:39:28,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 19:39:28,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-02-20 19:39:28,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:39:28,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 19:39:28,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4390 transitions. [2022-02-20 19:39:28,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 19:39:28,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4390 transitions. [2022-02-20 19:39:28,578 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 4390 transitions. [2022-02-20 19:39:31,179 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 4390 edges. 4390 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:31,311 INFO L225 Difference]: With dead ends: 2912 [2022-02-20 19:39:31,312 INFO L226 Difference]: Without dead ends: 2159 [2022-02-20 19:39:31,313 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 19:39:31,313 INFO L933 BasicCegarLoop]: 499 mSDtfsCounter, 848 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-02-20 19:39:31,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [848 Valid, 506 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-20 19:39:31,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2159 states. [2022-02-20 19:39:31,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2159 to 2159. [2022-02-20 19:39:31,650 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:39:31,652 INFO L82 GeneralOperation]: Start isEquivalent. First operand 2159 states. Second operand has 2159 states, 2157 states have (on average 1.5665275846082523) internal successors, (3379), 2158 states have internal predecessors, (3379), 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 19:39:31,654 INFO L74 IsIncluded]: Start isIncluded. First operand 2159 states. Second operand has 2159 states, 2157 states have (on average 1.5665275846082523) internal successors, (3379), 2158 states have internal predecessors, (3379), 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 19:39:31,655 INFO L87 Difference]: Start difference. First operand 2159 states. Second operand has 2159 states, 2157 states have (on average 1.5665275846082523) internal successors, (3379), 2158 states have internal predecessors, (3379), 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 19:39:31,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:31,793 INFO L93 Difference]: Finished difference Result 2159 states and 3379 transitions. [2022-02-20 19:39:31,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2159 states and 3379 transitions. [2022-02-20 19:39:31,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:31,796 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:31,798 INFO L74 IsIncluded]: Start isIncluded. First operand has 2159 states, 2157 states have (on average 1.5665275846082523) internal successors, (3379), 2158 states have internal predecessors, (3379), 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 2159 states. [2022-02-20 19:39:31,800 INFO L87 Difference]: Start difference. First operand has 2159 states, 2157 states have (on average 1.5665275846082523) internal successors, (3379), 2158 states have internal predecessors, (3379), 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 2159 states. [2022-02-20 19:39:31,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:31,926 INFO L93 Difference]: Finished difference Result 2159 states and 3379 transitions. [2022-02-20 19:39:31,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2159 states and 3379 transitions. [2022-02-20 19:39:31,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:31,928 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:31,928 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:39:31,928 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:39:31,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2159 states, 2157 states have (on average 1.5665275846082523) internal successors, (3379), 2158 states have internal predecessors, (3379), 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 19:39:32,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2159 states to 2159 states and 3379 transitions. [2022-02-20 19:39:32,073 INFO L78 Accepts]: Start accepts. Automaton has 2159 states and 3379 transitions. Word has length 48 [2022-02-20 19:39:32,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:39:32,074 INFO L470 AbstractCegarLoop]: Abstraction has 2159 states and 3379 transitions. [2022-02-20 19:39:32,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 19:39:32,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2159 states and 3379 transitions. [2022-02-20 19:39:32,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-20 19:39:32,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:39:32,075 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-20 19:39:32,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-20 19:39:32,075 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:39:32,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:39:32,076 INFO L85 PathProgramCache]: Analyzing trace with hash -213997176, now seen corresponding path program 1 times [2022-02-20 19:39:32,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:39:32,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078125372] [2022-02-20 19:39:32,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:39:32,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:39:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:39:32,125 INFO L290 TraceCheckUtils]: 0: Hoare triple {53040#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(32, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~inputC~0 := 3;~inputF~0 := 6;~inputA~0 := 1;~inputB~0 := 2;~inputD~0 := 4;~inputE~0 := 5;~a17~0 := -124;~a5~0 := 4;~a24~0 := 15;~a2~0 := 170;~a7~0 := 13; {53040#true} is VALID [2022-02-20 19:39:32,125 INFO L290 TraceCheckUtils]: 1: Hoare triple {53040#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet38#1, main_#t~ret39#1, main_#t~ret40#1;assume -2147483648 <= main_#t~nondet38#1 && main_#t~nondet38#1 <= 2147483647; {53040#true} is VALID [2022-02-20 19:39:32,125 INFO L290 TraceCheckUtils]: 2: Hoare triple {53040#true} assume 0 != main_#t~nondet38#1;havoc main_#t~nondet38#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet8#1, main1_#t~nondet9#1, main1_#t~nondet10#1, main1_#t~nondet11#1, main1_#t~nondet12#1, main1_#t~nondet13#1, main1_#t~nondet14#1, main1_#t~nondet15#1, main1_#t~nondet16#1, main1_#t~nondet17#1, main1_#t~nondet18#1, main1_#t~nondet19#1, main1_#t~nondet20#1, main1_#t~ret21#1, main1_#t~ret22#1, main1_#t~post23#1, main1_~c1~0#1, main1_~i2~0#1;havoc main1_~c1~0#1;havoc main1_~i2~0#1;main1_~c1~0#1 := 0;assume -128 <= main1_#t~nondet8#1 && main1_#t~nondet8#1 <= 127;~r1~0 := main1_#t~nondet8#1;havoc main1_#t~nondet8#1;assume -128 <= main1_#t~nondet9#1 && main1_#t~nondet9#1 <= 127;~id1~0 := main1_#t~nondet9#1;havoc main1_#t~nondet9#1;assume -128 <= main1_#t~nondet10#1 && main1_#t~nondet10#1 <= 127;~st1~0 := main1_#t~nondet10#1;havoc main1_#t~nondet10#1;assume -128 <= main1_#t~nondet11#1 && main1_#t~nondet11#1 <= 127;~send1~0 := main1_#t~nondet11#1;havoc main1_#t~nondet11#1;~mode1~0 := main1_#t~nondet12#1;havoc main1_#t~nondet12#1;assume -128 <= main1_#t~nondet13#1 && main1_#t~nondet13#1 <= 127;~id2~0 := main1_#t~nondet13#1;havoc main1_#t~nondet13#1;assume -128 <= main1_#t~nondet14#1 && main1_#t~nondet14#1 <= 127;~st2~0 := main1_#t~nondet14#1;havoc main1_#t~nondet14#1;assume -128 <= main1_#t~nondet15#1 && main1_#t~nondet15#1 <= 127;~send2~0 := main1_#t~nondet15#1;havoc main1_#t~nondet15#1;~mode2~0 := main1_#t~nondet16#1;havoc main1_#t~nondet16#1;assume -128 <= main1_#t~nondet17#1 && main1_#t~nondet17#1 <= 127;~id3~0 := main1_#t~nondet17#1;havoc main1_#t~nondet17#1;assume -128 <= main1_#t~nondet18#1 && main1_#t~nondet18#1 <= 127;~st3~0 := main1_#t~nondet18#1;havoc main1_#t~nondet18#1;assume -128 <= main1_#t~nondet19#1 && main1_#t~nondet19#1 <= 127;~send3~0 := main1_#t~nondet19#1;havoc main1_#t~nondet19#1;~mode3~0 := main1_#t~nondet20#1;havoc main1_#t~nondet20#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; {53040#true} is VALID [2022-02-20 19:39:32,125 INFO L290 TraceCheckUtils]: 3: Hoare triple {53040#true} assume 0 == ~r1~0; {53040#true} is VALID [2022-02-20 19:39:32,125 INFO L290 TraceCheckUtils]: 4: Hoare triple {53040#true} assume ~id1~0 >= 0; {53040#true} is VALID [2022-02-20 19:39:32,126 INFO L290 TraceCheckUtils]: 5: Hoare triple {53040#true} assume 0 == ~st1~0; {53042#(<= ~st1~0 0)} is VALID [2022-02-20 19:39:32,126 INFO L290 TraceCheckUtils]: 6: Hoare triple {53042#(<= ~st1~0 0)} assume ~send1~0 == ~id1~0; {53042#(<= ~st1~0 0)} is VALID [2022-02-20 19:39:32,126 INFO L290 TraceCheckUtils]: 7: Hoare triple {53042#(<= ~st1~0 0)} assume 0 == ~mode1~0 % 256; {53042#(<= ~st1~0 0)} is VALID [2022-02-20 19:39:32,126 INFO L290 TraceCheckUtils]: 8: Hoare triple {53042#(<= ~st1~0 0)} assume ~id2~0 >= 0; {53042#(<= ~st1~0 0)} is VALID [2022-02-20 19:39:32,127 INFO L290 TraceCheckUtils]: 9: Hoare triple {53042#(<= ~st1~0 0)} assume 0 == ~st2~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,127 INFO L290 TraceCheckUtils]: 10: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume ~send2~0 == ~id2~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,127 INFO L290 TraceCheckUtils]: 11: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume 0 == ~mode2~0 % 256; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,128 INFO L290 TraceCheckUtils]: 12: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume ~id3~0 >= 0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,128 INFO L290 TraceCheckUtils]: 13: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume 0 == ~st3~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,128 INFO L290 TraceCheckUtils]: 14: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume ~send3~0 == ~id3~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,128 INFO L290 TraceCheckUtils]: 15: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume 0 == ~mode3~0 % 256; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,129 INFO L290 TraceCheckUtils]: 16: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume ~id1~0 != ~id2~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,129 INFO L290 TraceCheckUtils]: 17: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume ~id1~0 != ~id3~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,129 INFO L290 TraceCheckUtils]: 18: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,129 INFO L290 TraceCheckUtils]: 19: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} init_#res#1 := init_~tmp~0#1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,130 INFO L290 TraceCheckUtils]: 20: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} main1_#t~ret21#1 := init_#res#1;assume { :end_inline_init } true;assume -2147483648 <= main1_#t~ret21#1 && main1_#t~ret21#1 <= 2147483647;main1_~i2~0#1 := main1_#t~ret21#1;havoc main1_#t~ret21#1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,130 INFO L290 TraceCheckUtils]: 21: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume !(0 == main1_~i2~0#1); {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,130 INFO L290 TraceCheckUtils]: 22: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main1_~i2~0#1 := 0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,131 INFO L290 TraceCheckUtils]: 23: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,131 INFO L290 TraceCheckUtils]: 24: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume !(0 != ~mode1~0 % 256); {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,131 INFO L290 TraceCheckUtils]: 25: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite5#1 := ~send1~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,131 INFO L290 TraceCheckUtils]: 26: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} ~p1_new~0 := (if node1_#t~ite5#1 % 256 <= 127 then node1_#t~ite5#1 % 256 else node1_#t~ite5#1 % 256 - 256);havoc node1_#t~ite5#1;~mode1~0 := 1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,132 INFO L290 TraceCheckUtils]: 27: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,132 INFO L290 TraceCheckUtils]: 28: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume !(0 != ~mode2~0 % 256); {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,132 INFO L290 TraceCheckUtils]: 29: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite6#1 := ~send2~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,133 INFO L290 TraceCheckUtils]: 30: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} ~p2_new~0 := (if node2_#t~ite6#1 % 256 <= 127 then node2_#t~ite6#1 % 256 else node2_#t~ite6#1 % 256 - 256);havoc node2_#t~ite6#1;~mode2~0 := 1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,133 INFO L290 TraceCheckUtils]: 31: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,133 INFO L290 TraceCheckUtils]: 32: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume !(0 != ~mode3~0 % 256); {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,133 INFO L290 TraceCheckUtils]: 33: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite7#1 := ~send3~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,134 INFO L290 TraceCheckUtils]: 34: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} ~p3_new~0 := (if node3_#t~ite7#1 % 256 <= 127 then node3_#t~ite7#1 % 256 else node3_#t~ite7#1 % 256 - 256);havoc node3_#t~ite7#1;~mode3~0 := 1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,134 INFO L290 TraceCheckUtils]: 35: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,134 INFO L290 TraceCheckUtils]: 36: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,134 INFO L290 TraceCheckUtils]: 37: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume !(~r1~0 >= 3); {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,135 INFO L290 TraceCheckUtils]: 38: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume 0 == ~st1~0 + ~st2~0 + ~st3~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,135 INFO L290 TraceCheckUtils]: 39: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume ~r1~0 < 3;check_~tmp~1#1 := 1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,135 INFO L290 TraceCheckUtils]: 40: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} check_#res#1 := check_~tmp~1#1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,136 INFO L290 TraceCheckUtils]: 41: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,136 INFO L290 TraceCheckUtils]: 42: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume !(0 == assert_~arg#1 % 256); {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,136 INFO L290 TraceCheckUtils]: 43: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume { :end_inline_assert } true;main1_#t~post23#1 := main1_~i2~0#1;main1_~i2~0#1 := 1 + main1_#t~post23#1;havoc main1_#t~post23#1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,136 INFO L290 TraceCheckUtils]: 44: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,137 INFO L290 TraceCheckUtils]: 45: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,137 INFO L290 TraceCheckUtils]: 46: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume !(node1_~m1~0#1 != ~nomsg~0); {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,137 INFO L290 TraceCheckUtils]: 47: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} ~mode1~0 := 0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,138 INFO L290 TraceCheckUtils]: 48: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,138 INFO L290 TraceCheckUtils]: 49: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume !(0 != ~mode2~0 % 256); {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,138 INFO L290 TraceCheckUtils]: 50: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite6#1 := ~send2~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,138 INFO L290 TraceCheckUtils]: 51: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} ~p2_new~0 := (if node2_#t~ite6#1 % 256 <= 127 then node2_#t~ite6#1 % 256 else node2_#t~ite6#1 % 256 - 256);havoc node2_#t~ite6#1;~mode2~0 := 1; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,139 INFO L290 TraceCheckUtils]: 52: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,139 INFO L290 TraceCheckUtils]: 53: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,139 INFO L290 TraceCheckUtils]: 54: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume node3_~m3~0#1 != ~nomsg~0; {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,139 INFO L290 TraceCheckUtils]: 55: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume !(node3_~m3~0#1 > ~id3~0); {53043#(<= (+ ~st2~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:32,140 INFO L290 TraceCheckUtils]: 56: Hoare triple {53043#(<= (+ ~st2~0 ~st1~0) 0)} assume node3_~m3~0#1 == ~id3~0;~st3~0 := 1; {53044#(and (= (+ (- 1) ~st3~0) 0) (<= (+ ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:32,140 INFO L290 TraceCheckUtils]: 57: Hoare triple {53044#(and (= (+ (- 1) ~st3~0) 0) (<= (+ ~st2~0 ~st1~0) 0))} ~mode3~0 := 0; {53044#(and (= (+ (- 1) ~st3~0) 0) (<= (+ ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:32,141 INFO L290 TraceCheckUtils]: 58: Hoare triple {53044#(and (= (+ (- 1) ~st3~0) 0) (<= (+ ~st2~0 ~st1~0) 0))} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {53044#(and (= (+ (- 1) ~st3~0) 0) (<= (+ ~st2~0 ~st1~0) 0))} is VALID [2022-02-20 19:39:32,141 INFO L290 TraceCheckUtils]: 59: Hoare triple {53044#(and (= (+ (- 1) ~st3~0) 0) (<= (+ ~st2~0 ~st1~0) 0))} assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; {53041#false} is VALID [2022-02-20 19:39:32,141 INFO L290 TraceCheckUtils]: 60: Hoare triple {53041#false} check_#res#1 := check_~tmp~1#1; {53041#false} is VALID [2022-02-20 19:39:32,141 INFO L290 TraceCheckUtils]: 61: Hoare triple {53041#false} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {53041#false} is VALID [2022-02-20 19:39:32,141 INFO L290 TraceCheckUtils]: 62: Hoare triple {53041#false} assume 0 == assert_~arg#1 % 256; {53041#false} is VALID [2022-02-20 19:39:32,141 INFO L290 TraceCheckUtils]: 63: Hoare triple {53041#false} assume !false; {53041#false} is VALID [2022-02-20 19:39:32,142 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-20 19:39:32,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:39:32,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078125372] [2022-02-20 19:39:32,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078125372] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:39:32,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:39:32,142 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-20 19:39:32,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162071186] [2022-02-20 19:39:32,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:39:32,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 64 [2022-02-20 19:39:32,143 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:39:32,143 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 19:39:32,179 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:32,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-20 19:39:32,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:39:32,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-20 19:39:32,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-20 19:39:32,180 INFO L87 Difference]: Start difference. First operand 2159 states and 3379 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 19:39:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:36,164 INFO L93 Difference]: Finished difference Result 4187 states and 6227 transitions. [2022-02-20 19:39:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-20 19:39:36,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 64 [2022-02-20 19:39:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 19:39:36,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 19:39:36,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1738 transitions. [2022-02-20 19:39:36,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 19:39:36,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1738 transitions. [2022-02-20 19:39:36,177 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 1738 transitions. [2022-02-20 19:39:37,596 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 1738 edges. 1738 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:38,037 INFO L225 Difference]: With dead ends: 4187 [2022-02-20 19:39:38,037 INFO L226 Difference]: Without dead ends: 3557 [2022-02-20 19:39:38,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-20 19:39:38,039 INFO L933 BasicCegarLoop]: 1563 mSDtfsCounter, 3073 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3073 SdHoareTripleChecker+Valid, 3184 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 19:39:38,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3073 Valid, 3184 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 19:39:38,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2022-02-20 19:39:39,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 2787. [2022-02-20 19:39:39,053 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 19:39:39,056 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3557 states. Second operand has 2787 states, 2785 states have (on average 1.5278276481149013) internal successors, (4255), 2786 states have internal predecessors, (4255), 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 19:39:39,057 INFO L74 IsIncluded]: Start isIncluded. First operand 3557 states. Second operand has 2787 states, 2785 states have (on average 1.5278276481149013) internal successors, (4255), 2786 states have internal predecessors, (4255), 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 19:39:39,058 INFO L87 Difference]: Start difference. First operand 3557 states. Second operand has 2787 states, 2785 states have (on average 1.5278276481149013) internal successors, (4255), 2786 states have internal predecessors, (4255), 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 19:39:39,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:39,404 INFO L93 Difference]: Finished difference Result 3557 states and 5326 transitions. [2022-02-20 19:39:39,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3557 states and 5326 transitions. [2022-02-20 19:39:39,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:39,407 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:39,410 INFO L74 IsIncluded]: Start isIncluded. First operand has 2787 states, 2785 states have (on average 1.5278276481149013) internal successors, (4255), 2786 states have internal predecessors, (4255), 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 3557 states. [2022-02-20 19:39:39,411 INFO L87 Difference]: Start difference. First operand has 2787 states, 2785 states have (on average 1.5278276481149013) internal successors, (4255), 2786 states have internal predecessors, (4255), 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 3557 states. [2022-02-20 19:39:39,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 19:39:39,778 INFO L93 Difference]: Finished difference Result 3557 states and 5326 transitions. [2022-02-20 19:39:39,778 INFO L276 IsEmpty]: Start isEmpty. Operand 3557 states and 5326 transitions. [2022-02-20 19:39:39,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 19:39:39,781 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 19:39:39,782 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 19:39:39,782 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 19:39:39,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2785 states have (on average 1.5278276481149013) internal successors, (4255), 2786 states have internal predecessors, (4255), 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 19:39:40,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 4255 transitions. [2022-02-20 19:39:40,015 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 4255 transitions. Word has length 64 [2022-02-20 19:39:40,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 19:39:40,016 INFO L470 AbstractCegarLoop]: Abstraction has 2787 states and 4255 transitions. [2022-02-20 19:39:40,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 19:39:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 4255 transitions. [2022-02-20 19:39:40,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-20 19:39:40,017 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 19:39:40,017 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-20 19:39:40,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-20 19:39:40,017 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 19:39:40,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 19:39:40,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1033510440, now seen corresponding path program 1 times [2022-02-20 19:39:40,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 19:39:40,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853976724] [2022-02-20 19:39:40,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 19:39:40,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 19:39:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 19:39:40,075 INFO L290 TraceCheckUtils]: 0: Hoare triple {68136#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(32, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~inputC~0 := 3;~inputF~0 := 6;~inputA~0 := 1;~inputB~0 := 2;~inputD~0 := 4;~inputE~0 := 5;~a17~0 := -124;~a5~0 := 4;~a24~0 := 15;~a2~0 := 170;~a7~0 := 13; {68136#true} is VALID [2022-02-20 19:39:40,076 INFO L290 TraceCheckUtils]: 1: Hoare triple {68136#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet38#1, main_#t~ret39#1, main_#t~ret40#1;assume -2147483648 <= main_#t~nondet38#1 && main_#t~nondet38#1 <= 2147483647; {68136#true} is VALID [2022-02-20 19:39:40,076 INFO L290 TraceCheckUtils]: 2: Hoare triple {68136#true} assume 0 != main_#t~nondet38#1;havoc main_#t~nondet38#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet8#1, main1_#t~nondet9#1, main1_#t~nondet10#1, main1_#t~nondet11#1, main1_#t~nondet12#1, main1_#t~nondet13#1, main1_#t~nondet14#1, main1_#t~nondet15#1, main1_#t~nondet16#1, main1_#t~nondet17#1, main1_#t~nondet18#1, main1_#t~nondet19#1, main1_#t~nondet20#1, main1_#t~ret21#1, main1_#t~ret22#1, main1_#t~post23#1, main1_~c1~0#1, main1_~i2~0#1;havoc main1_~c1~0#1;havoc main1_~i2~0#1;main1_~c1~0#1 := 0;assume -128 <= main1_#t~nondet8#1 && main1_#t~nondet8#1 <= 127;~r1~0 := main1_#t~nondet8#1;havoc main1_#t~nondet8#1;assume -128 <= main1_#t~nondet9#1 && main1_#t~nondet9#1 <= 127;~id1~0 := main1_#t~nondet9#1;havoc main1_#t~nondet9#1;assume -128 <= main1_#t~nondet10#1 && main1_#t~nondet10#1 <= 127;~st1~0 := main1_#t~nondet10#1;havoc main1_#t~nondet10#1;assume -128 <= main1_#t~nondet11#1 && main1_#t~nondet11#1 <= 127;~send1~0 := main1_#t~nondet11#1;havoc main1_#t~nondet11#1;~mode1~0 := main1_#t~nondet12#1;havoc main1_#t~nondet12#1;assume -128 <= main1_#t~nondet13#1 && main1_#t~nondet13#1 <= 127;~id2~0 := main1_#t~nondet13#1;havoc main1_#t~nondet13#1;assume -128 <= main1_#t~nondet14#1 && main1_#t~nondet14#1 <= 127;~st2~0 := main1_#t~nondet14#1;havoc main1_#t~nondet14#1;assume -128 <= main1_#t~nondet15#1 && main1_#t~nondet15#1 <= 127;~send2~0 := main1_#t~nondet15#1;havoc main1_#t~nondet15#1;~mode2~0 := main1_#t~nondet16#1;havoc main1_#t~nondet16#1;assume -128 <= main1_#t~nondet17#1 && main1_#t~nondet17#1 <= 127;~id3~0 := main1_#t~nondet17#1;havoc main1_#t~nondet17#1;assume -128 <= main1_#t~nondet18#1 && main1_#t~nondet18#1 <= 127;~st3~0 := main1_#t~nondet18#1;havoc main1_#t~nondet18#1;assume -128 <= main1_#t~nondet19#1 && main1_#t~nondet19#1 <= 127;~send3~0 := main1_#t~nondet19#1;havoc main1_#t~nondet19#1;~mode3~0 := main1_#t~nondet20#1;havoc main1_#t~nondet20#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; {68136#true} is VALID [2022-02-20 19:39:40,076 INFO L290 TraceCheckUtils]: 3: Hoare triple {68136#true} assume 0 == ~r1~0; {68136#true} is VALID [2022-02-20 19:39:40,076 INFO L290 TraceCheckUtils]: 4: Hoare triple {68136#true} assume ~id1~0 >= 0; {68136#true} is VALID [2022-02-20 19:39:40,077 INFO L290 TraceCheckUtils]: 5: Hoare triple {68136#true} assume 0 == ~st1~0; {68138#(<= ~st1~0 0)} is VALID [2022-02-20 19:39:40,077 INFO L290 TraceCheckUtils]: 6: Hoare triple {68138#(<= ~st1~0 0)} assume ~send1~0 == ~id1~0; {68138#(<= ~st1~0 0)} is VALID [2022-02-20 19:39:40,077 INFO L290 TraceCheckUtils]: 7: Hoare triple {68138#(<= ~st1~0 0)} assume 0 == ~mode1~0 % 256; {68138#(<= ~st1~0 0)} is VALID [2022-02-20 19:39:40,078 INFO L290 TraceCheckUtils]: 8: Hoare triple {68138#(<= ~st1~0 0)} assume ~id2~0 >= 0; {68138#(<= ~st1~0 0)} is VALID [2022-02-20 19:39:40,078 INFO L290 TraceCheckUtils]: 9: Hoare triple {68138#(<= ~st1~0 0)} assume 0 == ~st2~0; {68138#(<= ~st1~0 0)} is VALID [2022-02-20 19:39:40,078 INFO L290 TraceCheckUtils]: 10: Hoare triple {68138#(<= ~st1~0 0)} assume ~send2~0 == ~id2~0; {68138#(<= ~st1~0 0)} is VALID [2022-02-20 19:39:40,078 INFO L290 TraceCheckUtils]: 11: Hoare triple {68138#(<= ~st1~0 0)} assume 0 == ~mode2~0 % 256; {68138#(<= ~st1~0 0)} is VALID [2022-02-20 19:39:40,079 INFO L290 TraceCheckUtils]: 12: Hoare triple {68138#(<= ~st1~0 0)} assume ~id3~0 >= 0; {68138#(<= ~st1~0 0)} is VALID [2022-02-20 19:39:40,079 INFO L290 TraceCheckUtils]: 13: Hoare triple {68138#(<= ~st1~0 0)} assume 0 == ~st3~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,079 INFO L290 TraceCheckUtils]: 14: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume ~send3~0 == ~id3~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,080 INFO L290 TraceCheckUtils]: 15: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume 0 == ~mode3~0 % 256; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,080 INFO L290 TraceCheckUtils]: 16: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume ~id1~0 != ~id2~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,080 INFO L290 TraceCheckUtils]: 17: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume ~id1~0 != ~id3~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,081 INFO L290 TraceCheckUtils]: 18: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,081 INFO L290 TraceCheckUtils]: 19: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} init_#res#1 := init_~tmp~0#1; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,081 INFO L290 TraceCheckUtils]: 20: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} main1_#t~ret21#1 := init_#res#1;assume { :end_inline_init } true;assume -2147483648 <= main1_#t~ret21#1 && main1_#t~ret21#1 <= 2147483647;main1_~i2~0#1 := main1_#t~ret21#1;havoc main1_#t~ret21#1; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,081 INFO L290 TraceCheckUtils]: 21: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume !(0 == main1_~i2~0#1); {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,082 INFO L290 TraceCheckUtils]: 22: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main1_~i2~0#1 := 0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,082 INFO L290 TraceCheckUtils]: 23: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,082 INFO L290 TraceCheckUtils]: 24: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume !(0 != ~mode1~0 % 256); {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,083 INFO L290 TraceCheckUtils]: 25: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite5#1 := ~send1~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,083 INFO L290 TraceCheckUtils]: 26: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} ~p1_new~0 := (if node1_#t~ite5#1 % 256 <= 127 then node1_#t~ite5#1 % 256 else node1_#t~ite5#1 % 256 - 256);havoc node1_#t~ite5#1;~mode1~0 := 1; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,083 INFO L290 TraceCheckUtils]: 27: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,084 INFO L290 TraceCheckUtils]: 28: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume !(0 != ~mode2~0 % 256); {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,084 INFO L290 TraceCheckUtils]: 29: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite6#1 := ~send2~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,084 INFO L290 TraceCheckUtils]: 30: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} ~p2_new~0 := (if node2_#t~ite6#1 % 256 <= 127 then node2_#t~ite6#1 % 256 else node2_#t~ite6#1 % 256 - 256);havoc node2_#t~ite6#1;~mode2~0 := 1; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,084 INFO L290 TraceCheckUtils]: 31: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,085 INFO L290 TraceCheckUtils]: 32: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume !(0 != ~mode3~0 % 256); {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,085 INFO L290 TraceCheckUtils]: 33: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite7#1 := ~send3~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,085 INFO L290 TraceCheckUtils]: 34: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} ~p3_new~0 := (if node3_#t~ite7#1 % 256 <= 127 then node3_#t~ite7#1 % 256 else node3_#t~ite7#1 % 256 - 256);havoc node3_#t~ite7#1;~mode3~0 := 1; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,086 INFO L290 TraceCheckUtils]: 35: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,086 INFO L290 TraceCheckUtils]: 36: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,086 INFO L290 TraceCheckUtils]: 37: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume !(~r1~0 >= 3); {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,086 INFO L290 TraceCheckUtils]: 38: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume 0 == ~st1~0 + ~st2~0 + ~st3~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,087 INFO L290 TraceCheckUtils]: 39: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume ~r1~0 < 3;check_~tmp~1#1 := 1; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,087 INFO L290 TraceCheckUtils]: 40: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} check_#res#1 := check_~tmp~1#1; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,087 INFO L290 TraceCheckUtils]: 41: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,088 INFO L290 TraceCheckUtils]: 42: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume !(0 == assert_~arg#1 % 256); {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,088 INFO L290 TraceCheckUtils]: 43: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume { :end_inline_assert } true;main1_#t~post23#1 := main1_~i2~0#1;main1_~i2~0#1 := 1 + main1_#t~post23#1;havoc main1_#t~post23#1; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,088 INFO L290 TraceCheckUtils]: 44: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume !!(main1_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,088 INFO L290 TraceCheckUtils]: 45: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,089 INFO L290 TraceCheckUtils]: 46: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume !(node1_~m1~0#1 != ~nomsg~0); {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,089 INFO L290 TraceCheckUtils]: 47: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} ~mode1~0 := 0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,089 INFO L290 TraceCheckUtils]: 48: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,090 INFO L290 TraceCheckUtils]: 49: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,090 INFO L290 TraceCheckUtils]: 50: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume node2_~m2~0#1 != ~nomsg~0; {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,090 INFO L290 TraceCheckUtils]: 51: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume !(node2_~m2~0#1 > ~id2~0); {68139#(<= (+ ~st3~0 ~st1~0) 0)} is VALID [2022-02-20 19:39:40,091 INFO L290 TraceCheckUtils]: 52: Hoare triple {68139#(<= (+ ~st3~0 ~st1~0) 0)} assume node2_~m2~0#1 == ~id2~0;~st2~0 := 1; {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} is VALID [2022-02-20 19:39:40,091 INFO L290 TraceCheckUtils]: 53: Hoare triple {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} ~mode2~0 := 0; {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} is VALID [2022-02-20 19:39:40,091 INFO L290 TraceCheckUtils]: 54: Hoare triple {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite7#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} is VALID [2022-02-20 19:39:40,092 INFO L290 TraceCheckUtils]: 55: Hoare triple {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} assume !(0 != ~mode3~0 % 256); {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} is VALID [2022-02-20 19:39:40,092 INFO L290 TraceCheckUtils]: 56: Hoare triple {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite7#1 := ~send3~0; {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} is VALID [2022-02-20 19:39:40,092 INFO L290 TraceCheckUtils]: 57: Hoare triple {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} ~p3_new~0 := (if node3_#t~ite7#1 % 256 <= 127 then node3_#t~ite7#1 % 256 else node3_#t~ite7#1 % 256 - 256);havoc node3_#t~ite7#1;~mode3~0 := 1; {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} is VALID [2022-02-20 19:39:40,093 INFO L290 TraceCheckUtils]: 58: Hoare triple {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} is VALID [2022-02-20 19:39:40,093 INFO L290 TraceCheckUtils]: 59: Hoare triple {68140#(and (<= (+ ~st3~0 ~st1~0) 0) (= (+ (- 1) ~st2~0) 0))} assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; {68137#false} is VALID [2022-02-20 19:39:40,093 INFO L290 TraceCheckUtils]: 60: Hoare triple {68137#false} check_#res#1 := check_~tmp~1#1; {68137#false} is VALID [2022-02-20 19:39:40,094 INFO L290 TraceCheckUtils]: 61: Hoare triple {68137#false} main1_#t~ret22#1 := check_#res#1;assume { :end_inline_check } true;assume -2147483648 <= main1_#t~ret22#1 && main1_#t~ret22#1 <= 2147483647;main1_~c1~0#1 := main1_#t~ret22#1;havoc main1_#t~ret22#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main1_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; {68137#false} is VALID [2022-02-20 19:39:40,094 INFO L290 TraceCheckUtils]: 62: Hoare triple {68137#false} assume 0 == assert_~arg#1 % 256; {68137#false} is VALID [2022-02-20 19:39:40,094 INFO L290 TraceCheckUtils]: 63: Hoare triple {68137#false} assume !false; {68137#false} is VALID [2022-02-20 19:39:40,094 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-20 19:39:40,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 19:39:40,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853976724] [2022-02-20 19:39:40,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853976724] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 19:39:40,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 19:39:40,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-20 19:39:40,096 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86700701] [2022-02-20 19:39:40,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 19:39:40,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 64 [2022-02-20 19:39:40,097 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 19:39:40,097 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 19:39:40,138 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 19:39:40,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-20 19:39:40,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 19:39:40,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-20 19:39:40,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-20 19:39:40,140 INFO L87 Difference]: Start difference. First operand 2787 states and 4255 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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)