./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label27.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label27.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 4ceae147c0993f09d1996333054d05cdb50149b89c2ec286f40c2e532c4f5e1a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 08:39:31,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 08:39:31,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 08:39:31,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 08:39:31,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 08:39:31,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 08:39:31,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 08:39:31,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 08:39:31,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 08:39:31,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 08:39:31,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 08:39:31,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 08:39:31,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 08:39:31,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 08:39:31,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 08:39:31,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 08:39:31,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 08:39:31,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 08:39:31,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 08:39:31,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 08:39:31,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 08:39:31,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 08:39:31,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 08:39:31,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 08:39:31,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 08:39:31,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 08:39:31,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 08:39:31,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 08:39:31,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 08:39:31,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 08:39:31,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 08:39:31,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 08:39:31,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 08:39:31,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 08:39:31,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 08:39:31,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 08:39:31,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 08:39:31,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 08:39:31,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 08:39:31,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 08:39:31,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 08:39:31,745 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 08:39:31,771 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 08:39:31,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 08:39:31,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 08:39:31,772 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 08:39:31,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 08:39:31,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 08:39:31,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 08:39:31,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 08:39:31,774 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 08:39:31,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 08:39:31,775 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 08:39:31,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 08:39:31,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 08:39:31,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 08:39:31,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 08:39:31,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 08:39:31,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 08:39:31,777 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 08:39:31,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 08:39:31,777 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 08:39:31,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 08:39:31,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 08:39:31,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 08:39:31,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 08:39:31,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 08:39:31,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 08:39:31,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 08:39:31,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 08:39:31,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 08:39:31,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 08:39:31,779 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 08:39:31,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 08:39:31,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 08:39:31,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 08:39:31,780 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ceae147c0993f09d1996333054d05cdb50149b89c2ec286f40c2e532c4f5e1a [2021-12-22 08:39:32,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 08:39:32,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 08:39:32,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 08:39:32,049 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 08:39:32,049 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 08:39:32,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label27.c [2021-12-22 08:39:32,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7ee006e/a7855dba78a54b86947abe5916a91012/FLAG439101ad7 [2021-12-22 08:39:32,529 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 08:39:32,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label27.c [2021-12-22 08:39:32,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7ee006e/a7855dba78a54b86947abe5916a91012/FLAG439101ad7 [2021-12-22 08:39:32,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7ee006e/a7855dba78a54b86947abe5916a91012 [2021-12-22 08:39:32,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 08:39:32,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 08:39:32,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 08:39:32,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 08:39:32,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 08:39:32,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:39:32" (1/1) ... [2021-12-22 08:39:32,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5ea748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32, skipping insertion in model container [2021-12-22 08:39:32,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:39:32" (1/1) ... [2021-12-22 08:39:32,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 08:39:32,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 08:39:32,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label27.c[16500,16513] [2021-12-22 08:39:32,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 08:39:32,915 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 08:39:32,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label27.c[16500,16513] [2021-12-22 08:39:32,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 08:39:32,998 INFO L208 MainTranslator]: Completed translation [2021-12-22 08:39:32,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32 WrapperNode [2021-12-22 08:39:32,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 08:39:32,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 08:39:33,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 08:39:33,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 08:39:33,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32" (1/1) ... [2021-12-22 08:39:33,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32" (1/1) ... [2021-12-22 08:39:33,066 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2021-12-22 08:39:33,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 08:39:33,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 08:39:33,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 08:39:33,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 08:39:33,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32" (1/1) ... [2021-12-22 08:39:33,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32" (1/1) ... [2021-12-22 08:39:33,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32" (1/1) ... [2021-12-22 08:39:33,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32" (1/1) ... [2021-12-22 08:39:33,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32" (1/1) ... [2021-12-22 08:39:33,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32" (1/1) ... [2021-12-22 08:39:33,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32" (1/1) ... [2021-12-22 08:39:33,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 08:39:33,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 08:39:33,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 08:39:33,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 08:39:33,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32" (1/1) ... [2021-12-22 08:39:33,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 08:39:33,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:39:33,153 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) [2021-12-22 08:39:33,177 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 [2021-12-22 08:39:33,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 08:39:33,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 08:39:33,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 08:39:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 08:39:33,266 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 08:39:33,267 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 08:39:33,895 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 08:39:33,904 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 08:39:33,905 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 08:39:33,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:39:33 BoogieIcfgContainer [2021-12-22 08:39:33,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 08:39:33,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 08:39:33,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 08:39:33,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 08:39:33,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:39:32" (1/3) ... [2021-12-22 08:39:33,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da78af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:39:33, skipping insertion in model container [2021-12-22 08:39:33,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:39:32" (2/3) ... [2021-12-22 08:39:33,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da78af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:39:33, skipping insertion in model container [2021-12-22 08:39:33,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:39:33" (3/3) ... [2021-12-22 08:39:33,912 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label27.c [2021-12-22 08:39:33,916 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 08:39:33,916 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 08:39:33,955 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 08:39:33,960 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 [2021-12-22 08:39:33,961 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 08:39:33,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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) [2021-12-22 08:39:33,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-22 08:39:33,978 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:39:33,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:33,979 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:39:33,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:39:33,983 INFO L85 PathProgramCache]: Analyzing trace with hash 857291087, now seen corresponding path program 1 times [2021-12-22 08:39:33,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:39:33,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495161965] [2021-12-22 08:39:33,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:33,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:39:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:34,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:39:34,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:39:34,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495161965] [2021-12-22 08:39:34,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495161965] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:39:34,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:39:34,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:39:34,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753027659] [2021-12-22 08:39:34,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:39:34,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:39:34,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:39:34,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:39:34,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:39:34,320 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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) [2021-12-22 08:39:34,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:39:34,857 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-12-22 08:39:34,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:39:34,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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 88 [2021-12-22 08:39:34,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:39:34,866 INFO L225 Difference]: With dead ends: 528 [2021-12-22 08:39:34,867 INFO L226 Difference]: Without dead ends: 266 [2021-12-22 08:39:34,869 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 [2021-12-22 08:39:34,871 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 97 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 08:39:34,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 66 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 08:39:34,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-12-22 08:39:34,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-12-22 08:39:34,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 states have internal predecessors, (380), 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) [2021-12-22 08:39:34,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2021-12-22 08:39:34,912 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 88 [2021-12-22 08:39:34,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:39:34,913 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2021-12-22 08:39:34,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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) [2021-12-22 08:39:34,913 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2021-12-22 08:39:34,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-22 08:39:34,916 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:39:34,916 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:34,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 08:39:34,917 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:39:34,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:39:34,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1648492327, now seen corresponding path program 1 times [2021-12-22 08:39:34,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:39:34,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107685521] [2021-12-22 08:39:34,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:34,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:39:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:34,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:39:34,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:39:34,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107685521] [2021-12-22 08:39:34,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107685521] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:39:34,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:39:34,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:39:34,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718065826] [2021-12-22 08:39:34,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:39:34,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:39:34,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:39:34,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:39:34,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:39:34,974 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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) [2021-12-22 08:39:35,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:39:35,362 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2021-12-22 08:39:35,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:39:35,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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 93 [2021-12-22 08:39:35,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:39:35,366 INFO L225 Difference]: With dead ends: 792 [2021-12-22 08:39:35,366 INFO L226 Difference]: Without dead ends: 528 [2021-12-22 08:39:35,367 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 [2021-12-22 08:39:35,368 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 08:39:35,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 08:39:35,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-12-22 08:39:35,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-12-22 08:39:35,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3681214421252372) internal successors, (721), 527 states have internal predecessors, (721), 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) [2021-12-22 08:39:35,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 721 transitions. [2021-12-22 08:39:35,390 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 721 transitions. Word has length 93 [2021-12-22 08:39:35,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:39:35,390 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 721 transitions. [2021-12-22 08:39:35,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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) [2021-12-22 08:39:35,391 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 721 transitions. [2021-12-22 08:39:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-22 08:39:35,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:39:35,394 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:35,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 08:39:35,394 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:39:35,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:39:35,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1380296349, now seen corresponding path program 1 times [2021-12-22 08:39:35,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:39:35,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679314530] [2021-12-22 08:39:35,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:35,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:39:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:35,445 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:39:35,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:39:35,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679314530] [2021-12-22 08:39:35,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679314530] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:39:35,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:39:35,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:39:35,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498413255] [2021-12-22 08:39:35,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:39:35,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:39:35,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:39:35,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:39:35,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:39:35,448 INFO L87 Difference]: Start difference. First operand 528 states and 721 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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) [2021-12-22 08:39:35,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:39:35,765 INFO L93 Difference]: Finished difference Result 1447 states and 1979 transitions. [2021-12-22 08:39:35,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:39:35,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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 97 [2021-12-22 08:39:35,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:39:35,768 INFO L225 Difference]: With dead ends: 1447 [2021-12-22 08:39:35,768 INFO L226 Difference]: Without dead ends: 921 [2021-12-22 08:39:35,769 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 [2021-12-22 08:39:35,770 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 08:39:35,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 17 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 08:39:35,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-12-22 08:39:35,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2021-12-22 08:39:35,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.3434782608695652) internal successors, (1236), 920 states have internal predecessors, (1236), 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) [2021-12-22 08:39:35,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1236 transitions. [2021-12-22 08:39:35,789 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1236 transitions. Word has length 97 [2021-12-22 08:39:35,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:39:35,790 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1236 transitions. [2021-12-22 08:39:35,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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) [2021-12-22 08:39:35,790 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1236 transitions. [2021-12-22 08:39:35,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-22 08:39:35,792 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:39:35,792 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:35,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 08:39:35,792 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:39:35,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:39:35,802 INFO L85 PathProgramCache]: Analyzing trace with hash 2121899539, now seen corresponding path program 1 times [2021-12-22 08:39:35,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:39:35,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485758638] [2021-12-22 08:39:35,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:35,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:39:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:35,869 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:39:35,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:39:35,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485758638] [2021-12-22 08:39:35,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485758638] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:39:35,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:39:35,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:39:35,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077761784] [2021-12-22 08:39:35,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:39:35,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:39:35,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:39:35,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:39:35,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:39:35,874 INFO L87 Difference]: Start difference. First operand 921 states and 1236 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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) [2021-12-22 08:39:36,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:39:36,161 INFO L93 Difference]: Finished difference Result 1840 states and 2470 transitions. [2021-12-22 08:39:36,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:39:36,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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 101 [2021-12-22 08:39:36,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:39:36,164 INFO L225 Difference]: With dead ends: 1840 [2021-12-22 08:39:36,164 INFO L226 Difference]: Without dead ends: 921 [2021-12-22 08:39:36,166 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 [2021-12-22 08:39:36,166 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 129 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 08:39:36,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 61 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 08:39:36,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-12-22 08:39:36,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2021-12-22 08:39:36,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.3304347826086957) internal successors, (1224), 920 states have internal predecessors, (1224), 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) [2021-12-22 08:39:36,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1224 transitions. [2021-12-22 08:39:36,187 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1224 transitions. Word has length 101 [2021-12-22 08:39:36,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:39:36,188 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1224 transitions. [2021-12-22 08:39:36,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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) [2021-12-22 08:39:36,188 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1224 transitions. [2021-12-22 08:39:36,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-22 08:39:36,189 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:39:36,189 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:36,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 08:39:36,190 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:39:36,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:39:36,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2015967182, now seen corresponding path program 1 times [2021-12-22 08:39:36,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:39:36,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221561117] [2021-12-22 08:39:36,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:36,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:39:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:36,229 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:39:36,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:39:36,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221561117] [2021-12-22 08:39:36,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221561117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:39:36,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:39:36,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:39:36,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162958872] [2021-12-22 08:39:36,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:39:36,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:39:36,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:39:36,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:39:36,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:39:36,232 INFO L87 Difference]: Start difference. First operand 921 states and 1224 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 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) [2021-12-22 08:39:36,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:39:36,536 INFO L93 Difference]: Finished difference Result 2233 states and 2923 transitions. [2021-12-22 08:39:36,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:39:36,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 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 103 [2021-12-22 08:39:36,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:39:36,540 INFO L225 Difference]: With dead ends: 2233 [2021-12-22 08:39:36,540 INFO L226 Difference]: Without dead ends: 1314 [2021-12-22 08:39:36,541 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 [2021-12-22 08:39:36,542 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 122 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 08:39:36,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 62 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 08:39:36,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2021-12-22 08:39:36,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1183. [2021-12-22 08:39:36,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.2825719120135364) internal successors, (1516), 1182 states have internal predecessors, (1516), 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) [2021-12-22 08:39:36,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1516 transitions. [2021-12-22 08:39:36,563 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1516 transitions. Word has length 103 [2021-12-22 08:39:36,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:39:36,564 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1516 transitions. [2021-12-22 08:39:36,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 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) [2021-12-22 08:39:36,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1516 transitions. [2021-12-22 08:39:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-22 08:39:36,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:39:36,569 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:36,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 08:39:36,570 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:39:36,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:39:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2265750, now seen corresponding path program 1 times [2021-12-22 08:39:36,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:39:36,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818914787] [2021-12-22 08:39:36,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:36,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:39:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:36,662 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:39:36,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:39:36,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818914787] [2021-12-22 08:39:36,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818914787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:39:36,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:39:36,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 08:39:36,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593550115] [2021-12-22 08:39:36,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:39:36,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 08:39:36,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:39:36,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 08:39:36,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 08:39:36,665 INFO L87 Difference]: Start difference. First operand 1183 states and 1516 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-12-22 08:39:37,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:39:37,108 INFO L93 Difference]: Finished difference Result 2757 states and 3471 transitions. [2021-12-22 08:39:37,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 08:39:37,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2021-12-22 08:39:37,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:39:37,113 INFO L225 Difference]: With dead ends: 2757 [2021-12-22 08:39:37,113 INFO L226 Difference]: Without dead ends: 1576 [2021-12-22 08:39:37,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 08:39:37,115 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 386 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 08:39:37,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 59 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 08:39:37,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-12-22 08:39:37,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2021-12-22 08:39:37,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2479224376731302) internal successors, (1802), 1444 states have internal predecessors, (1802), 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) [2021-12-22 08:39:37,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1802 transitions. [2021-12-22 08:39:37,148 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1802 transitions. Word has length 107 [2021-12-22 08:39:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:39:37,149 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1802 transitions. [2021-12-22 08:39:37,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-12-22 08:39:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1802 transitions. [2021-12-22 08:39:37,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-22 08:39:37,151 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:39:37,151 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:37,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 08:39:37,152 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:39:37,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:39:37,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1256717015, now seen corresponding path program 1 times [2021-12-22 08:39:37,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:39:37,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135930795] [2021-12-22 08:39:37,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:37,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:39:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:37,238 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:39:37,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:39:37,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135930795] [2021-12-22 08:39:37,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135930795] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:39:37,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:39:37,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 08:39:37,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484669] [2021-12-22 08:39:37,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:39:37,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:39:37,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:39:37,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:39:37,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:39:37,241 INFO L87 Difference]: Start difference. First operand 1445 states and 1802 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2021-12-22 08:39:37,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:39:37,540 INFO L93 Difference]: Finished difference Result 3019 states and 3739 transitions. [2021-12-22 08:39:37,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:39:37,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 125 [2021-12-22 08:39:37,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:39:37,568 INFO L225 Difference]: With dead ends: 3019 [2021-12-22 08:39:37,568 INFO L226 Difference]: Without dead ends: 1576 [2021-12-22 08:39:37,570 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 [2021-12-22 08:39:37,570 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 47 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 08:39:37,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 193 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 08:39:37,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-12-22 08:39:37,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2021-12-22 08:39:37,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2049861495844876) internal successors, (1740), 1444 states have internal predecessors, (1740), 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) [2021-12-22 08:39:37,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1740 transitions. [2021-12-22 08:39:37,600 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1740 transitions. Word has length 125 [2021-12-22 08:39:37,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:39:37,602 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1740 transitions. [2021-12-22 08:39:37,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2021-12-22 08:39:37,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1740 transitions. [2021-12-22 08:39:37,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-22 08:39:37,604 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:39:37,604 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:37,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 08:39:37,605 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:39:37,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:39:37,606 INFO L85 PathProgramCache]: Analyzing trace with hash 144240950, now seen corresponding path program 1 times [2021-12-22 08:39:37,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:39:37,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961210448] [2021-12-22 08:39:37,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:37,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:39:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:37,705 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-22 08:39:37,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:39:37,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961210448] [2021-12-22 08:39:37,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961210448] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:39:37,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898197239] [2021-12-22 08:39:37,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:37,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:39:37,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:39:37,712 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:39:37,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 08:39:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:37,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 08:39:37,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:39:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-22 08:39:38,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:39:38,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898197239] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:39:38,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:39:38,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-22 08:39:38,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327124967] [2021-12-22 08:39:38,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:39:38,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:39:38,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:39:38,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:39:38,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:39:38,136 INFO L87 Difference]: Start difference. First operand 1445 states and 1740 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2021-12-22 08:39:38,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:39:38,419 INFO L93 Difference]: Finished difference Result 2233 states and 2642 transitions. [2021-12-22 08:39:38,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:39:38,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 138 [2021-12-22 08:39:38,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:39:38,427 INFO L225 Difference]: With dead ends: 2233 [2021-12-22 08:39:38,428 INFO L226 Difference]: Without dead ends: 2231 [2021-12-22 08:39:38,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:39:38,429 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 66 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 08:39:38,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 31 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 08:39:38,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-12-22 08:39:38,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2231. [2021-12-22 08:39:38,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.1838565022421526) internal successors, (2640), 2230 states have internal predecessors, (2640), 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) [2021-12-22 08:39:38,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2640 transitions. [2021-12-22 08:39:38,464 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2640 transitions. Word has length 138 [2021-12-22 08:39:38,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:39:38,465 INFO L470 AbstractCegarLoop]: Abstraction has 2231 states and 2640 transitions. [2021-12-22 08:39:38,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2021-12-22 08:39:38,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2640 transitions. [2021-12-22 08:39:38,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-22 08:39:38,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:39:38,468 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:38,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 08:39:38,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:39:38,688 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:39:38,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:39:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash -259303927, now seen corresponding path program 1 times [2021-12-22 08:39:38,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:39:38,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007332647] [2021-12-22 08:39:38,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:38,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:39:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-22 08:39:38,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:39:38,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007332647] [2021-12-22 08:39:38,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007332647] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:39:38,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:39:38,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 08:39:38,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372467763] [2021-12-22 08:39:38,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:39:38,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:39:38,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:39:38,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:39:38,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:39:38,728 INFO L87 Difference]: Start difference. First operand 2231 states and 2640 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-12-22 08:39:39,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:39:39,017 INFO L93 Difference]: Finished difference Result 4853 states and 5762 transitions. [2021-12-22 08:39:39,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:39:39,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 145 [2021-12-22 08:39:39,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:39:39,024 INFO L225 Difference]: With dead ends: 4853 [2021-12-22 08:39:39,024 INFO L226 Difference]: Without dead ends: 2362 [2021-12-22 08:39:39,026 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 [2021-12-22 08:39:39,028 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 135 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 08:39:39,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 193 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 08:39:39,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2021-12-22 08:39:39,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2100. [2021-12-22 08:39:39,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.093854216293473) internal successors, (2296), 2099 states have internal predecessors, (2296), 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) [2021-12-22 08:39:39,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2296 transitions. [2021-12-22 08:39:39,059 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2296 transitions. Word has length 145 [2021-12-22 08:39:39,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:39:39,059 INFO L470 AbstractCegarLoop]: Abstraction has 2100 states and 2296 transitions. [2021-12-22 08:39:39,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-12-22 08:39:39,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2296 transitions. [2021-12-22 08:39:39,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-22 08:39:39,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:39:39,062 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:39,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 08:39:39,062 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:39:39,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:39:39,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1147508778, now seen corresponding path program 1 times [2021-12-22 08:39:39,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:39:39,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214310542] [2021-12-22 08:39:39,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:39,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:39:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:39,128 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 73 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-22 08:39:39,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:39:39,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214310542] [2021-12-22 08:39:39,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214310542] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:39:39,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16314759] [2021-12-22 08:39:39,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:39,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:39:39,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:39:39,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:39:39,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 08:39:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:39,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 08:39:39,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:39:39,406 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-22 08:39:39,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:39:39,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16314759] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:39:39,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:39:39,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-22 08:39:39,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898036502] [2021-12-22 08:39:39,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:39:39,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:39:39,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:39:39,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:39:39,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:39:39,409 INFO L87 Difference]: Start difference. First operand 2100 states and 2296 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-12-22 08:39:39,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:39:39,689 INFO L93 Difference]: Finished difference Result 5508 states and 6042 transitions. [2021-12-22 08:39:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:39:39,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 152 [2021-12-22 08:39:39,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:39:39,697 INFO L225 Difference]: With dead ends: 5508 [2021-12-22 08:39:39,698 INFO L226 Difference]: Without dead ends: 3410 [2021-12-22 08:39:39,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:39:39,700 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 58 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 08:39:39,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 175 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 08:39:39,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2021-12-22 08:39:39,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 3279. [2021-12-22 08:39:39,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3279 states, 3278 states have (on average 1.0884685784014643) internal successors, (3568), 3278 states have internal predecessors, (3568), 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) [2021-12-22 08:39:39,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 3568 transitions. [2021-12-22 08:39:39,768 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 3568 transitions. Word has length 152 [2021-12-22 08:39:39,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:39:39,768 INFO L470 AbstractCegarLoop]: Abstraction has 3279 states and 3568 transitions. [2021-12-22 08:39:39,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-12-22 08:39:39,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 3568 transitions. [2021-12-22 08:39:39,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-22 08:39:39,772 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:39:39,772 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:39,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 08:39:39,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-22 08:39:39,981 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:39:39,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:39:39,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1377707438, now seen corresponding path program 1 times [2021-12-22 08:39:39,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:39:39,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109900356] [2021-12-22 08:39:39,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:39,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:39:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:40,032 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 66 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:39:40,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:39:40,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109900356] [2021-12-22 08:39:40,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109900356] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:39:40,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265135951] [2021-12-22 08:39:40,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:40,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:39:40,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:39:40,034 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:39:40,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 08:39:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:40,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 08:39:40,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:39:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-22 08:39:40,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:39:40,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265135951] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:39:40,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:39:40,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-22 08:39:40,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863755167] [2021-12-22 08:39:40,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:39:40,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:39:40,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:39:40,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:39:40,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:39:40,280 INFO L87 Difference]: Start difference. First operand 3279 states and 3568 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2021-12-22 08:39:40,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:39:40,575 INFO L93 Difference]: Finished difference Result 7211 states and 7889 transitions. [2021-12-22 08:39:40,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:39:40,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 155 [2021-12-22 08:39:40,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:39:40,584 INFO L225 Difference]: With dead ends: 7211 [2021-12-22 08:39:40,585 INFO L226 Difference]: Without dead ends: 3803 [2021-12-22 08:39:40,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:39:40,589 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 52 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 08:39:40,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 172 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 08:39:40,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2021-12-22 08:39:40,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3279. [2021-12-22 08:39:40,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3279 states, 3278 states have (on average 1.087248322147651) internal successors, (3564), 3278 states have internal predecessors, (3564), 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) [2021-12-22 08:39:40,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 3564 transitions. [2021-12-22 08:39:40,635 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 3564 transitions. Word has length 155 [2021-12-22 08:39:40,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:39:40,636 INFO L470 AbstractCegarLoop]: Abstraction has 3279 states and 3564 transitions. [2021-12-22 08:39:40,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2021-12-22 08:39:40,636 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 3564 transitions. [2021-12-22 08:39:40,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-22 08:39:40,640 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:39:40,640 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:40,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-22 08:39:40,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:39:40,855 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:39:40,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:39:40,856 INFO L85 PathProgramCache]: Analyzing trace with hash -581380260, now seen corresponding path program 1 times [2021-12-22 08:39:40,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:39:40,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625139093] [2021-12-22 08:39:40,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:40,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:39:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:40,905 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 115 proven. 10 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-22 08:39:40,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:39:40,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625139093] [2021-12-22 08:39:40,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625139093] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:39:40,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743232670] [2021-12-22 08:39:40,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:39:40,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:39:40,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:39:40,908 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:39:40,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 08:39:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:39:40,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 08:39:40,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:39:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-22 08:39:41,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:39:41,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743232670] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:39:41,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:39:41,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-22 08:39:41,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504371108] [2021-12-22 08:39:41,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:39:41,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 08:39:41,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:39:41,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 08:39:41,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-22 08:39:41,244 INFO L87 Difference]: Start difference. First operand 3279 states and 3564 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-12-22 08:39:41,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:39:41,609 INFO L93 Difference]: Finished difference Result 6161 states and 6703 transitions. [2021-12-22 08:39:41,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 08:39:41,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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 184 [2021-12-22 08:39:41,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:39:41,610 INFO L225 Difference]: With dead ends: 6161 [2021-12-22 08:39:41,610 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 08:39:41,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-22 08:39:41,614 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 318 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 08:39:41,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 34 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 08:39:41,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 08:39:41,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 08:39:41,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-22 08:39:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 08:39:41,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2021-12-22 08:39:41,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:39:41,616 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 08:39:41,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-12-22 08:39:41,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 08:39:41,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 08:39:41,618 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 08:39:41,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 08:39:41,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:39:41,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-12-22 08:39:42,296 INFO L858 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,297 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,298 INFO L858 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-12-22 08:39:42,299 INFO L858 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,300 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,301 INFO L858 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,302 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,302 INFO L858 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,302 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-22 08:39:42,302 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-12-22 08:39:42,302 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-12-22 08:39:42,302 INFO L858 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-12-22 08:39:42,302 INFO L858 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-12-22 08:39:42,302 INFO L858 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-12-22 08:39:42,302 INFO L858 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-12-22 08:39:42,302 INFO L858 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-12-22 08:39:42,302 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-12-22 08:39:42,302 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-12-22 08:39:42,303 INFO L854 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (<= ~a20~0 0)) (.cse5 (not (= ~a7~0 1))) (.cse2 (<= ~a16~0 5)) (.cse4 (= ~a21~0 1)) (.cse7 (= ~a17~0 1)) (.cse1 (<= ~a8~0 13)) (.cse6 (= ~a16~0 6)) (.cse3 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse2) (and .cse5 .cse4 .cse2 .cse3) (and .cse0 .cse6 .cse4) (and .cse1 .cse4 .cse7 .cse3) (and .cse6 .cse5 .cse4 .cse3) (and (<= ~a8~0 14) .cse4 .cse2) (and (<= ~a7~0 0) .cse4 .cse7 .cse3) (and .cse1 .cse6 .cse3))) [2021-12-22 08:39:42,303 INFO L858 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,303 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,303 INFO L858 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,303 INFO L858 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,303 INFO L858 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,306 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-12-22 08:39:42,306 INFO L858 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-12-22 08:39:42,307 INFO L858 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-12-22 08:39:42,307 INFO L858 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-12-22 08:39:42,307 INFO L858 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-12-22 08:39:42,307 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-12-22 08:39:42,307 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-12-22 08:39:42,307 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-12-22 08:39:42,307 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-12-22 08:39:42,307 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-12-22 08:39:42,307 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-12-22 08:39:42,308 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-12-22 08:39:42,308 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-22 08:39:42,308 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-12-22 08:39:42,308 INFO L861 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-12-22 08:39:42,308 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,308 INFO L858 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,308 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,308 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,308 INFO L858 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,309 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-12-22 08:39:42,309 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-12-22 08:39:42,309 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-12-22 08:39:42,309 INFO L858 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-12-22 08:39:42,309 INFO L858 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-12-22 08:39:42,309 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-12-22 08:39:42,309 INFO L858 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-12-22 08:39:42,309 INFO L858 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-12-22 08:39:42,309 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-12-22 08:39:42,309 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-22 08:39:42,310 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,310 INFO L858 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,310 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,310 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,310 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-12-22 08:39:42,310 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,310 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-12-22 08:39:42,310 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-12-22 08:39:42,310 INFO L858 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-12-22 08:39:42,311 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-12-22 08:39:42,311 INFO L858 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-12-22 08:39:42,311 INFO L858 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-12-22 08:39:42,311 INFO L858 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-12-22 08:39:42,311 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-12-22 08:39:42,311 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-12-22 08:39:42,311 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-12-22 08:39:42,312 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-12-22 08:39:42,312 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-12-22 08:39:42,312 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-12-22 08:39:42,312 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,313 INFO L854 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (<= ~a20~0 0)) (.cse5 (not (= ~a7~0 1))) (.cse2 (<= ~a16~0 5)) (.cse4 (= ~a21~0 1)) (.cse7 (= ~a17~0 1)) (.cse1 (<= ~a8~0 13)) (.cse6 (= ~a16~0 6)) (.cse3 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse2) (and .cse5 .cse4 .cse2 .cse3) (and .cse0 .cse6 .cse4) (and .cse1 .cse4 .cse7 .cse3) (and .cse6 .cse5 .cse4 .cse3) (and (<= ~a8~0 14) .cse4 .cse2) (and (<= ~a7~0 0) .cse4 .cse7 .cse3) (and .cse1 .cse6 .cse3))) [2021-12-22 08:39:42,313 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,313 INFO L858 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,313 INFO L858 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,313 INFO L858 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,313 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-12-22 08:39:42,314 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-22 08:39:42,314 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 450) no Hoare annotation was computed. [2021-12-22 08:39:42,314 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-12-22 08:39:42,314 INFO L858 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-12-22 08:39:42,314 INFO L858 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-12-22 08:39:42,314 INFO L858 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-12-22 08:39:42,314 INFO L858 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-12-22 08:39:42,314 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-12-22 08:39:42,314 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-12-22 08:39:42,315 INFO L858 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,315 INFO L858 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,315 INFO L858 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,315 INFO L858 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,315 INFO L858 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-12-22 08:39:42,315 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-12-22 08:39:42,315 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-12-22 08:39:42,315 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-12-22 08:39:42,315 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-12-22 08:39:42,318 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:39:42,319 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 08:39:42,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 08:39:42 BoogieIcfgContainer [2021-12-22 08:39:42,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 08:39:42,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 08:39:42,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 08:39:42,347 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 08:39:42,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:39:33" (3/4) ... [2021-12-22 08:39:42,349 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-22 08:39:42,367 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-22 08:39:42,368 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-22 08:39:42,368 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-22 08:39:42,369 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-22 08:39:42,443 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 08:39:42,444 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 08:39:42,444 INFO L158 Benchmark]: Toolchain (without parser) took 9885.99ms. Allocated memory was 81.8MB in the beginning and 218.1MB in the end (delta: 136.3MB). Free memory was 45.2MB in the beginning and 89.9MB in the end (delta: -44.6MB). Peak memory consumption was 91.3MB. Max. memory is 16.1GB. [2021-12-22 08:39:42,444 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 08:39:42,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.93ms. Allocated memory was 81.8MB in the beginning and 117.4MB in the end (delta: 35.7MB). Free memory was 45.0MB in the beginning and 75.8MB in the end (delta: -30.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-22 08:39:42,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.13ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 70.3MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-22 08:39:42,445 INFO L158 Benchmark]: Boogie Preprocessor took 51.43ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 66.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 08:39:42,445 INFO L158 Benchmark]: RCFGBuilder took 778.89ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 64.6MB in the end (delta: 1.5MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2021-12-22 08:39:42,446 INFO L158 Benchmark]: TraceAbstraction took 8437.96ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 64.4MB in the beginning and 104.5MB in the end (delta: -40.1MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. [2021-12-22 08:39:42,446 INFO L158 Benchmark]: Witness Printer took 97.59ms. Allocated memory is still 218.1MB. Free memory was 104.5MB in the beginning and 89.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-22 08:39:42,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.93ms. Allocated memory was 81.8MB in the beginning and 117.4MB in the end (delta: 35.7MB). Free memory was 45.0MB in the beginning and 75.8MB in the end (delta: -30.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.13ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 70.3MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.43ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 66.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 778.89ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 64.6MB in the end (delta: 1.5MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * TraceAbstraction took 8437.96ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 64.4MB in the beginning and 104.5MB in the end (delta: -40.1MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. * Witness Printer took 97.59ms. Allocated memory is still 218.1MB. Free memory was 104.5MB in the beginning and 89.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 450]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1724 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1724 mSDsluCounter, 1092 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 702 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4270 IncrementalHoareTripleChecker+Invalid, 4972 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 702 mSolverCounterUnsat, 1020 mSDtfsCounter, 4270 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 656 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3279occurred in iteration=10, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 1310 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 57 NumberOfFragments, 231 HoareAnnotationTreeSize, 3 FomulaSimplifications, 54 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2054 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2117 NumberOfCodeBlocks, 2117 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2101 ConstructedInterpolants, 0 QuantifiedInterpolants, 4948 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1279 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 979/1034 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((((((((a20 <= 0 && a8 <= 13) && a16 <= 5) || ((a8 <= 13 && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a21 == 1) && a16 <= 5)) || (((!(a7 == 1) && a21 == 1) && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a16 == 6) && a21 == 1)) || (((a8 <= 13 && a21 == 1) && a17 == 1) && a20 == 1)) || (((a16 == 6 && !(a7 == 1)) && a21 == 1) && a20 == 1)) || ((a8 <= 14 && a21 == 1) && a16 <= 5)) || (((a7 <= 0 && a21 == 1) && a17 == 1) && a20 == 1)) || ((a8 <= 13 && a16 == 6) && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((a20 <= 0 && a8 <= 13) && a16 <= 5) || ((a8 <= 13 && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a21 == 1) && a16 <= 5)) || (((!(a7 == 1) && a21 == 1) && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a16 == 6) && a21 == 1)) || (((a8 <= 13 && a21 == 1) && a17 == 1) && a20 == 1)) || (((a16 == 6 && !(a7 == 1)) && a21 == 1) && a20 == 1)) || ((a8 <= 14 && a21 == 1) && a16 <= 5)) || (((a7 <= 0 && a21 == 1) && a17 == 1) && a20 == 1)) || ((a8 <= 13 && a16 == 6) && a20 == 1) RESULT: Ultimate proved your program to be correct! [2021-12-22 08:39:42,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE