./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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/Problem14_label50.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 37f79062fe3be0abf370e94726d24a3524d934123ef5393980d7efccb29185f4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 00:00:31,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 00:00:31,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 00:00:31,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 00:00:31,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 00:00:31,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 00:00:31,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 00:00:31,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 00:00:31,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 00:00:31,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 00:00:31,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 00:00:31,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 00:00:31,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 00:00:31,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 00:00:31,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 00:00:31,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 00:00:31,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 00:00:31,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 00:00:31,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 00:00:31,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 00:00:31,702 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 00:00:31,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 00:00:31,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 00:00:31,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 00:00:31,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 00:00:31,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 00:00:31,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 00:00:31,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 00:00:31,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 00:00:31,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 00:00:31,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 00:00:31,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 00:00:31,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 00:00:31,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 00:00:31,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 00:00:31,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 00:00:31,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 00:00:31,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 00:00:31,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 00:00:31,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 00:00:31,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 00:00:31,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 00:00:31,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 00:00:31,764 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 00:00:31,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 00:00:31,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 00:00:31,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 00:00:31,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 00:00:31,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 00:00:31,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 00:00:31,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 00:00:31,768 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 00:00:31,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 00:00:31,769 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 00:00:31,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 00:00:31,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 00:00:31,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 00:00:31,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 00:00:31,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 00:00:31,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 00:00:31,779 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 00:00:31,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 00:00:31,779 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 00:00:31,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 00:00:31,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 00:00:31,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 00:00:31,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 00:00:31,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 00:00:31,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 00:00:31,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 00:00:31,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 00:00:31,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 00:00:31,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 00:00:31,782 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 00:00:31,782 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 00:00:31,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 00:00:31,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37f79062fe3be0abf370e94726d24a3524d934123ef5393980d7efccb29185f4 [2022-07-21 00:00:32,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 00:00:32,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 00:00:32,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 00:00:32,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 00:00:32,159 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 00:00:32,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2022-07-21 00:00:32,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb24b6d51/382afc7c59464f7ba14fe0de6fd35ea6/FLAG5387c1c93 [2022-07-21 00:00:32,785 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 00:00:32,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2022-07-21 00:00:32,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb24b6d51/382afc7c59464f7ba14fe0de6fd35ea6/FLAG5387c1c93 [2022-07-21 00:00:33,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb24b6d51/382afc7c59464f7ba14fe0de6fd35ea6 [2022-07-21 00:00:33,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 00:00:33,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 00:00:33,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 00:00:33,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 00:00:33,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 00:00:33,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:00:33" (1/1) ... [2022-07-21 00:00:33,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26826936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33, skipping insertion in model container [2022-07-21 00:00:33,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:00:33" (1/1) ... [2022-07-21 00:00:33,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 00:00:33,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 00:00:33,363 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/Problem14_label50.c[3933,3946] [2022-07-21 00:00:33,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 00:00:33,577 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 00:00:33,605 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/Problem14_label50.c[3933,3946] [2022-07-21 00:00:33,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 00:00:33,719 INFO L208 MainTranslator]: Completed translation [2022-07-21 00:00:33,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33 WrapperNode [2022-07-21 00:00:33,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 00:00:33,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 00:00:33,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 00:00:33,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 00:00:33,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33" (1/1) ... [2022-07-21 00:00:33,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33" (1/1) ... [2022-07-21 00:00:33,831 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2022-07-21 00:00:33,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 00:00:33,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 00:00:33,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 00:00:33,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 00:00:33,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33" (1/1) ... [2022-07-21 00:00:33,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33" (1/1) ... [2022-07-21 00:00:33,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33" (1/1) ... [2022-07-21 00:00:33,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33" (1/1) ... [2022-07-21 00:00:33,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33" (1/1) ... [2022-07-21 00:00:33,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33" (1/1) ... [2022-07-21 00:00:33,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33" (1/1) ... [2022-07-21 00:00:33,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 00:00:33,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 00:00:33,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 00:00:33,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 00:00:33,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33" (1/1) ... [2022-07-21 00:00:33,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 00:00:33,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:00:33,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 00:00:33,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 00:00:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 00:00:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 00:00:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 00:00:34,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 00:00:34,068 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 00:00:34,069 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 00:00:35,138 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 00:00:35,150 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 00:00:35,151 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 00:00:35,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:00:35 BoogieIcfgContainer [2022-07-21 00:00:35,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 00:00:35,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 00:00:35,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 00:00:35,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 00:00:35,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:00:33" (1/3) ... [2022-07-21 00:00:35,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f9b92d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:00:35, skipping insertion in model container [2022-07-21 00:00:35,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:00:33" (2/3) ... [2022-07-21 00:00:35,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f9b92d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:00:35, skipping insertion in model container [2022-07-21 00:00:35,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:00:35" (3/3) ... [2022-07-21 00:00:35,161 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label50.c [2022-07-21 00:00:35,174 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 00:00:35,174 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 00:00:35,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 00:00:35,247 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6f44951, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2cddb0af [2022-07-21 00:00:35,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 00:00:35,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:35,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-21 00:00:35,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:35,261 INFO L195 NwaCegarLoop]: 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] [2022-07-21 00:00:35,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:35,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:35,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times [2022-07-21 00:00:35,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:35,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518086968] [2022-07-21 00:00:35,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:35,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:35,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 00:00:35,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:35,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518086968] [2022-07-21 00:00:35,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518086968] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:35,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:00:35,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 00:00:35,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804094317] [2022-07-21 00:00:35,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:35,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 00:00:35,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:35,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 00:00:35,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 00:00:35,572 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:37,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:37,406 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2022-07-21 00:00:37,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 00:00:37,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2022-07-21 00:00:37,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:37,433 INFO L225 Difference]: With dead ends: 852 [2022-07-21 00:00:37,433 INFO L226 Difference]: Without dead ends: 538 [2022-07-21 00:00:37,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 00:00:37,454 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 558 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:37,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 44 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 00:00:37,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-07-21 00:00:37,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-07-21 00:00:37,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:37,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2022-07-21 00:00:37,538 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 37 [2022-07-21 00:00:37,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:37,539 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2022-07-21 00:00:37,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:37,539 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2022-07-21 00:00:37,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-21 00:00:37,547 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:37,549 INFO L195 NwaCegarLoop]: 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, 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, 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] [2022-07-21 00:00:37,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 00:00:37,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:37,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:37,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1421944847, now seen corresponding path program 1 times [2022-07-21 00:00:37,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:37,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117841603] [2022-07-21 00:00:37,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:37,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:37,728 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-21 00:00:37,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:37,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117841603] [2022-07-21 00:00:37,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117841603] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:37,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:00:37,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 00:00:37,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655170880] [2022-07-21 00:00:37,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:37,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:00:37,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:37,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:00:37,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:37,736 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:38,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:38,340 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2022-07-21 00:00:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:00:38,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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 185 [2022-07-21 00:00:38,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:38,346 INFO L225 Difference]: With dead ends: 1074 [2022-07-21 00:00:38,347 INFO L226 Difference]: Without dead ends: 716 [2022-07-21 00:00:38,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:38,349 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:38,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 00:00:38,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-07-21 00:00:38,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2022-07-21 00:00:38,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:38,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2022-07-21 00:00:38,387 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 185 [2022-07-21 00:00:38,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:38,387 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2022-07-21 00:00:38,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:38,388 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2022-07-21 00:00:38,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-21 00:00:38,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:38,396 INFO L195 NwaCegarLoop]: 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, 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, 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] [2022-07-21 00:00:38,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 00:00:38,397 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:38,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:38,398 INFO L85 PathProgramCache]: Analyzing trace with hash 292011490, now seen corresponding path program 1 times [2022-07-21 00:00:38,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:38,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901919381] [2022-07-21 00:00:38,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:38,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:38,592 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-21 00:00:38,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:38,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901919381] [2022-07-21 00:00:38,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901919381] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:38,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:00:38,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 00:00:38,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215595661] [2022-07-21 00:00:38,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:38,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 00:00:38,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:38,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 00:00:38,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-21 00:00:38,596 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:39,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:39,399 INFO L93 Difference]: Finished difference Result 1637 states and 2268 transitions. [2022-07-21 00:00:39,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 00:00:39,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 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 208 [2022-07-21 00:00:39,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:39,404 INFO L225 Difference]: With dead ends: 1637 [2022-07-21 00:00:39,404 INFO L226 Difference]: Without dead ends: 1072 [2022-07-21 00:00:39,405 INFO L412 NwaCegarLoop]: 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 [2022-07-21 00:00:39,406 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 112 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:39,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 113 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 00:00:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-07-21 00:00:39,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2022-07-21 00:00:39,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1724524076147815) internal successors, (1047), 893 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:39,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2022-07-21 00:00:39,431 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 208 [2022-07-21 00:00:39,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:39,432 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2022-07-21 00:00:39,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2022-07-21 00:00:39,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-07-21 00:00:39,441 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:39,441 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:00:39,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 00:00:39,442 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:39,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:39,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1977723078, now seen corresponding path program 1 times [2022-07-21 00:00:39,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:39,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331734532] [2022-07-21 00:00:39,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:39,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:39,841 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 168 proven. 130 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-21 00:00:39,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:39,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331734532] [2022-07-21 00:00:39,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331734532] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 00:00:39,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004539174] [2022-07-21 00:00:39,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:39,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 00:00:39,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:00:39,847 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) [2022-07-21 00:00:39,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 00:00:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:40,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 00:00:40,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 00:00:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-07-21 00:00:40,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 00:00:40,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004539174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:40,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 00:00:40,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-21 00:00:40,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501815193] [2022-07-21 00:00:40,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:40,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:00:40,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:40,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:00:40,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 00:00:40,161 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:40,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:40,701 INFO L93 Difference]: Finished difference Result 2320 states and 2778 transitions. [2022-07-21 00:00:40,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:00:40,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 339 [2022-07-21 00:00:40,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:40,709 INFO L225 Difference]: With dead ends: 2320 [2022-07-21 00:00:40,709 INFO L226 Difference]: Without dead ends: 1606 [2022-07-21 00:00:40,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 00:00:40,711 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 144 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:40,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 265 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 00:00:40,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2022-07-21 00:00:40,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2022-07-21 00:00:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.1401541695865451) internal successors, (1627), 1427 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:40,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1627 transitions. [2022-07-21 00:00:40,752 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1627 transitions. Word has length 339 [2022-07-21 00:00:40,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:40,753 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1627 transitions. [2022-07-21 00:00:40,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:40,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1627 transitions. [2022-07-21 00:00:40,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-07-21 00:00:40,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:40,763 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:00:40,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 00:00:40,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 00:00:40,984 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:40,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:40,984 INFO L85 PathProgramCache]: Analyzing trace with hash -474273995, now seen corresponding path program 1 times [2022-07-21 00:00:40,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:40,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108019466] [2022-07-21 00:00:40,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:40,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:41,207 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-21 00:00:41,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:41,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108019466] [2022-07-21 00:00:41,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108019466] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:41,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:00:41,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 00:00:41,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320696955] [2022-07-21 00:00:41,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:41,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:00:41,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:41,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:00:41,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:41,210 INFO L87 Difference]: Start difference. First operand 1428 states and 1627 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:41,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:41,740 INFO L93 Difference]: Finished difference Result 3210 states and 3757 transitions. [2022-07-21 00:00:41,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:00:41,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 438 [2022-07-21 00:00:41,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:41,750 INFO L225 Difference]: With dead ends: 3210 [2022-07-21 00:00:41,750 INFO L226 Difference]: Without dead ends: 1962 [2022-07-21 00:00:41,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:41,754 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 73 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:41,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 76 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 00:00:41,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-07-21 00:00:41,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2022-07-21 00:00:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1274859765425804) internal successors, (2211), 1961 states have internal predecessors, (2211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:41,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2211 transitions. [2022-07-21 00:00:41,799 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2211 transitions. Word has length 438 [2022-07-21 00:00:41,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:41,800 INFO L495 AbstractCegarLoop]: Abstraction has 1962 states and 2211 transitions. [2022-07-21 00:00:41,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:41,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2211 transitions. [2022-07-21 00:00:41,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2022-07-21 00:00:41,807 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:41,807 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:00:41,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 00:00:41,808 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:41,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:41,810 INFO L85 PathProgramCache]: Analyzing trace with hash 708625393, now seen corresponding path program 1 times [2022-07-21 00:00:41,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:41,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284312541] [2022-07-21 00:00:41,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:41,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:42,023 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 550 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-21 00:00:42,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:42,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284312541] [2022-07-21 00:00:42,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284312541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:42,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:00:42,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 00:00:42,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500833646] [2022-07-21 00:00:42,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:42,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 00:00:42,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:42,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 00:00:42,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-21 00:00:42,027 INFO L87 Difference]: Start difference. First operand 1962 states and 2211 transitions. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:43,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:43,066 INFO L93 Difference]: Finished difference Result 4100 states and 4616 transitions. [2022-07-21 00:00:43,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 00:00:43,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 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 462 [2022-07-21 00:00:43,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:43,075 INFO L225 Difference]: With dead ends: 4100 [2022-07-21 00:00:43,075 INFO L226 Difference]: Without dead ends: 2318 [2022-07-21 00:00:43,078 INFO L412 NwaCegarLoop]: 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 [2022-07-21 00:00:43,082 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 126 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:43,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 91 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 00:00:43,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-07-21 00:00:43,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2022-07-21 00:00:43,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.1135088476478205) internal successors, (2580), 2317 states have internal predecessors, (2580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:43,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2580 transitions. [2022-07-21 00:00:43,135 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2580 transitions. Word has length 462 [2022-07-21 00:00:43,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:43,136 INFO L495 AbstractCegarLoop]: Abstraction has 2318 states and 2580 transitions. [2022-07-21 00:00:43,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:43,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2580 transitions. [2022-07-21 00:00:43,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2022-07-21 00:00:43,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:43,147 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:00:43,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 00:00:43,147 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:43,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:43,148 INFO L85 PathProgramCache]: Analyzing trace with hash -301954776, now seen corresponding path program 1 times [2022-07-21 00:00:43,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:43,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387365762] [2022-07-21 00:00:43,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:43,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 695 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-07-21 00:00:43,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:43,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387365762] [2022-07-21 00:00:43,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387365762] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:43,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:00:43,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 00:00:43,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025279780] [2022-07-21 00:00:43,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:43,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 00:00:43,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:43,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 00:00:43,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-21 00:00:43,385 INFO L87 Difference]: Start difference. First operand 2318 states and 2580 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:44,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:44,030 INFO L93 Difference]: Finished difference Result 4692 states and 5227 transitions. [2022-07-21 00:00:44,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 00:00:44,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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 518 [2022-07-21 00:00:44,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:44,038 INFO L225 Difference]: With dead ends: 4692 [2022-07-21 00:00:44,039 INFO L226 Difference]: Without dead ends: 2496 [2022-07-21 00:00:44,041 INFO L412 NwaCegarLoop]: 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 [2022-07-21 00:00:44,044 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 142 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:44,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 17 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 00:00:44,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-07-21 00:00:44,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2022-07-21 00:00:44,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.0811394044022442) internal successors, (2505), 2317 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:44,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2505 transitions. [2022-07-21 00:00:44,088 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2505 transitions. Word has length 518 [2022-07-21 00:00:44,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:44,089 INFO L495 AbstractCegarLoop]: Abstraction has 2318 states and 2505 transitions. [2022-07-21 00:00:44,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:44,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2505 transitions. [2022-07-21 00:00:44,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2022-07-21 00:00:44,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:44,093 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:00:44,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 00:00:44,094 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:44,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:44,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1710737047, now seen corresponding path program 2 times [2022-07-21 00:00:44,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:44,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132495319] [2022-07-21 00:00:44,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:44,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:44,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 771 proven. 11 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-07-21 00:00:44,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:44,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132495319] [2022-07-21 00:00:44,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132495319] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 00:00:44,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467360697] [2022-07-21 00:00:44,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 00:00:44,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 00:00:44,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:00:44,376 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) [2022-07-21 00:00:44,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 00:00:44,548 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 00:00:44,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 00:00:44,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 00:00:44,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 00:00:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2022-07-21 00:00:44,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 00:00:44,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467360697] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:44,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 00:00:44,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-21 00:00:44,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142393907] [2022-07-21 00:00:44,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:44,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:00:44,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:44,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:00:44,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 00:00:44,642 INFO L87 Difference]: Start difference. First operand 2318 states and 2505 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:45,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:45,147 INFO L93 Difference]: Finished difference Result 4990 states and 5469 transitions. [2022-07-21 00:00:45,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:00:45,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 544 [2022-07-21 00:00:45,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:45,158 INFO L225 Difference]: With dead ends: 4990 [2022-07-21 00:00:45,158 INFO L226 Difference]: Without dead ends: 2852 [2022-07-21 00:00:45,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 00:00:45,162 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 144 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:45,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 234 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 00:00:45,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2022-07-21 00:00:45,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2674. [2022-07-21 00:00:45,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0849233071455293) internal successors, (2900), 2673 states have internal predecessors, (2900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:45,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2900 transitions. [2022-07-21 00:00:45,214 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2900 transitions. Word has length 544 [2022-07-21 00:00:45,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:45,215 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 2900 transitions. [2022-07-21 00:00:45,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:45,215 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2900 transitions. [2022-07-21 00:00:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2022-07-21 00:00:45,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:45,221 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:00:45,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 00:00:45,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-07-21 00:00:45,439 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:45,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:45,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1142838438, now seen corresponding path program 1 times [2022-07-21 00:00:45,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:45,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900198844] [2022-07-21 00:00:45,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:45,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:45,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 847 proven. 11 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-07-21 00:00:45,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:45,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900198844] [2022-07-21 00:00:45,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900198844] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 00:00:45,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684395122] [2022-07-21 00:00:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:45,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 00:00:45,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:00:45,748 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) [2022-07-21 00:00:45,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 00:00:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:45,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 00:00:45,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 00:00:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 1033 trivial. 0 not checked. [2022-07-21 00:00:45,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 00:00:45,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684395122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:45,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 00:00:45,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-21 00:00:45,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7698378] [2022-07-21 00:00:45,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:45,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:00:45,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:45,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:00:45,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 00:00:45,980 INFO L87 Difference]: Start difference. First operand 2674 states and 2900 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:46,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:46,611 INFO L93 Difference]: Finished difference Result 5168 states and 5619 transitions. [2022-07-21 00:00:46,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:00:46,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 563 [2022-07-21 00:00:46,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:46,620 INFO L225 Difference]: With dead ends: 5168 [2022-07-21 00:00:46,620 INFO L226 Difference]: Without dead ends: 2674 [2022-07-21 00:00:46,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 00:00:46,624 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 147 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:46,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 193 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 00:00:46,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2022-07-21 00:00:46,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2022-07-21 00:00:46,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0797595190380762) internal successors, (2694), 2495 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2694 transitions. [2022-07-21 00:00:46,675 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2694 transitions. Word has length 563 [2022-07-21 00:00:46,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:46,676 INFO L495 AbstractCegarLoop]: Abstraction has 2496 states and 2694 transitions. [2022-07-21 00:00:46,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:46,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2694 transitions. [2022-07-21 00:00:46,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2022-07-21 00:00:46,681 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:46,681 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:00:46,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-21 00:00:46,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 00:00:46,883 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:46,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:46,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1890446935, now seen corresponding path program 1 times [2022-07-21 00:00:46,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:46,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126197553] [2022-07-21 00:00:46,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:46,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:47,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1228 backedges. 868 proven. 11 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-07-21 00:00:47,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:47,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126197553] [2022-07-21 00:00:47,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126197553] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 00:00:47,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382468531] [2022-07-21 00:00:47,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:47,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 00:00:47,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:00:47,358 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) [2022-07-21 00:00:47,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 00:00:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:47,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 00:00:47,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 00:00:48,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1228 backedges. 563 proven. 0 refuted. 0 times theorem prover too weak. 665 trivial. 0 not checked. [2022-07-21 00:00:48,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 00:00:48,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382468531] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:48,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 00:00:48,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-07-21 00:00:48,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071034941] [2022-07-21 00:00:48,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:48,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:00:48,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:48,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:00:48,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 00:00:48,084 INFO L87 Difference]: Start difference. First operand 2496 states and 2694 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 2 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:48,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:48,588 INFO L93 Difference]: Finished difference Result 5346 states and 5793 transitions. [2022-07-21 00:00:48,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:00:48,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 2 states have internal predecessors, (229), 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 577 [2022-07-21 00:00:48,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:48,601 INFO L225 Difference]: With dead ends: 5346 [2022-07-21 00:00:48,601 INFO L226 Difference]: Without dead ends: 3208 [2022-07-21 00:00:48,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 576 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 00:00:48,606 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:48,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 50 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 00:00:48,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2022-07-21 00:00:48,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2022-07-21 00:00:48,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.0759326510399472) internal successors, (3259), 3029 states have internal predecessors, (3259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:48,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3259 transitions. [2022-07-21 00:00:48,666 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3259 transitions. Word has length 577 [2022-07-21 00:00:48,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:48,667 INFO L495 AbstractCegarLoop]: Abstraction has 3030 states and 3259 transitions. [2022-07-21 00:00:48,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 2 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:48,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3259 transitions. [2022-07-21 00:00:48,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2022-07-21 00:00:48,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:48,674 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:00:48,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 00:00:48,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 00:00:48,900 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:48,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:48,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1033133778, now seen corresponding path program 1 times [2022-07-21 00:00:48,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:48,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969134496] [2022-07-21 00:00:48,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:48,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:49,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1607 backedges. 1115 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2022-07-21 00:00:49,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:49,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969134496] [2022-07-21 00:00:49,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969134496] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:49,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:00:49,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 00:00:49,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967756602] [2022-07-21 00:00:49,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:49,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:00:49,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:49,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:00:49,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:49,502 INFO L87 Difference]: Start difference. First operand 3030 states and 3259 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:49,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:49,991 INFO L93 Difference]: Finished difference Result 6058 states and 6547 transitions. [2022-07-21 00:00:49,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:00:49,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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 646 [2022-07-21 00:00:49,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:50,004 INFO L225 Difference]: With dead ends: 6058 [2022-07-21 00:00:50,004 INFO L226 Difference]: Without dead ends: 3386 [2022-07-21 00:00:50,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:50,009 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:50,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 00:00:50,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2022-07-21 00:00:50,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3208. [2022-07-21 00:00:50,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0723417524165888) internal successors, (3439), 3207 states have internal predecessors, (3439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:50,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3439 transitions. [2022-07-21 00:00:50,078 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3439 transitions. Word has length 646 [2022-07-21 00:00:50,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:50,079 INFO L495 AbstractCegarLoop]: Abstraction has 3208 states and 3439 transitions. [2022-07-21 00:00:50,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:50,080 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3439 transitions. [2022-07-21 00:00:50,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2022-07-21 00:00:50,086 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:50,087 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 00:00:50,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 00:00:50,087 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:50,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:50,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2022748667, now seen corresponding path program 1 times [2022-07-21 00:00:50,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:50,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208327879] [2022-07-21 00:00:50,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:50,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 900 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-07-21 00:00:50,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:50,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208327879] [2022-07-21 00:00:50,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208327879] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:50,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:00:50,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 00:00:50,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070300834] [2022-07-21 00:00:50,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:50,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:00:50,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:50,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:00:50,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:50,318 INFO L87 Difference]: Start difference. First operand 3208 states and 3439 transitions. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:50,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:50,825 INFO L93 Difference]: Finished difference Result 7660 states and 8280 transitions. [2022-07-21 00:00:50,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:00:50,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 651 [2022-07-21 00:00:50,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:50,841 INFO L225 Difference]: With dead ends: 7660 [2022-07-21 00:00:50,841 INFO L226 Difference]: Without dead ends: 4632 [2022-07-21 00:00:50,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:50,847 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:50,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 52 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 00:00:50,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2022-07-21 00:00:50,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2022-07-21 00:00:51,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.07147484344634) internal successors, (4962), 4631 states have internal predecessors, (4962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:51,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4962 transitions. [2022-07-21 00:00:51,033 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4962 transitions. Word has length 651 [2022-07-21 00:00:51,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:51,034 INFO L495 AbstractCegarLoop]: Abstraction has 4632 states and 4962 transitions. [2022-07-21 00:00:51,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:51,036 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4962 transitions. [2022-07-21 00:00:51,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2022-07-21 00:00:51,061 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:51,061 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:00:51,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 00:00:51,062 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:51,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:51,062 INFO L85 PathProgramCache]: Analyzing trace with hash -581865813, now seen corresponding path program 1 times [2022-07-21 00:00:51,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:51,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799180884] [2022-07-21 00:00:51,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:51,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 1124 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2022-07-21 00:00:51,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:51,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799180884] [2022-07-21 00:00:51,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799180884] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:51,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:00:51,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 00:00:51,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098968016] [2022-07-21 00:00:51,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:51,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:00:51,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:51,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:00:51,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:51,383 INFO L87 Difference]: Start difference. First operand 4632 states and 4962 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:51,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:51,987 INFO L93 Difference]: Finished difference Result 9974 states and 10752 transitions. [2022-07-21 00:00:51,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:00:51,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 653 [2022-07-21 00:00:51,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:52,008 INFO L225 Difference]: With dead ends: 9974 [2022-07-21 00:00:52,008 INFO L226 Difference]: Without dead ends: 5522 [2022-07-21 00:00:52,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:52,032 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:52,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 202 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 00:00:52,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2022-07-21 00:00:52,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4988. [2022-07-21 00:00:52,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0675756968117105) internal successors, (5324), 4987 states have internal predecessors, (5324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:52,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5324 transitions. [2022-07-21 00:00:52,149 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5324 transitions. Word has length 653 [2022-07-21 00:00:52,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:52,150 INFO L495 AbstractCegarLoop]: Abstraction has 4988 states and 5324 transitions. [2022-07-21 00:00:52,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:52,150 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5324 transitions. [2022-07-21 00:00:52,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2022-07-21 00:00:52,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:52,159 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:00:52,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 00:00:52,159 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:52,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:52,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1375137372, now seen corresponding path program 1 times [2022-07-21 00:00:52,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:52,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659196297] [2022-07-21 00:00:52,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:52,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:52,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2104 backedges. 1543 proven. 0 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2022-07-21 00:00:52,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:52,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659196297] [2022-07-21 00:00:52,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659196297] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:52,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:00:52,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 00:00:52,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528306123] [2022-07-21 00:00:52,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:52,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:00:52,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:52,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:00:52,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:52,429 INFO L87 Difference]: Start difference. First operand 4988 states and 5324 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:53,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:53,108 INFO L93 Difference]: Finished difference Result 9796 states and 10467 transitions. [2022-07-21 00:00:53,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:00:53,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 730 [2022-07-21 00:00:53,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:53,157 INFO L225 Difference]: With dead ends: 9796 [2022-07-21 00:00:53,157 INFO L226 Difference]: Without dead ends: 4988 [2022-07-21 00:00:53,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:53,164 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 102 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:53,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 243 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 00:00:53,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2022-07-21 00:00:53,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2022-07-21 00:00:53,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0642545227698066) internal successors, (5118), 4809 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:53,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5118 transitions. [2022-07-21 00:00:53,257 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5118 transitions. Word has length 730 [2022-07-21 00:00:53,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:53,258 INFO L495 AbstractCegarLoop]: Abstraction has 4810 states and 5118 transitions. [2022-07-21 00:00:53,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:53,258 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5118 transitions. [2022-07-21 00:00:53,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2022-07-21 00:00:53,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:53,282 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:00:53,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 00:00:53,283 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:53,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:53,292 INFO L85 PathProgramCache]: Analyzing trace with hash -253890537, now seen corresponding path program 1 times [2022-07-21 00:00:53,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:53,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486573741] [2022-07-21 00:00:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:53,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-07-21 00:00:53,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:53,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486573741] [2022-07-21 00:00:53,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486573741] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 00:00:53,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658497318] [2022-07-21 00:00:53,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:53,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 00:00:53,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:00:53,892 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 00:00:53,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 00:00:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:54,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 00:00:54,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 00:00:54,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-07-21 00:00:54,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 00:00:55,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-07-21 00:00:55,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658497318] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 00:00:55,323 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 00:00:55,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-07-21 00:00:55,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512323170] [2022-07-21 00:00:55,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 00:00:55,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 00:00:55,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:55,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 00:00:55,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-21 00:00:55,337 INFO L87 Difference]: Start difference. First operand 4810 states and 5118 transitions. Second operand has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:56,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:56,458 INFO L93 Difference]: Finished difference Result 10864 states and 11594 transitions. [2022-07-21 00:00:56,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 00:00:56,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 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 806 [2022-07-21 00:00:56,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:56,493 INFO L225 Difference]: With dead ends: 10864 [2022-07-21 00:00:56,502 INFO L226 Difference]: Without dead ends: 6234 [2022-07-21 00:00:56,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1614 GetRequests, 1610 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-21 00:00:56,511 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 69 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:56,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 69 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 00:00:56,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2022-07-21 00:00:56,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 5522. [2022-07-21 00:00:56,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0648433254845138) internal successors, (5879), 5521 states have internal predecessors, (5879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:56,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5879 transitions. [2022-07-21 00:00:56,629 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5879 transitions. Word has length 806 [2022-07-21 00:00:56,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:56,630 INFO L495 AbstractCegarLoop]: Abstraction has 5522 states and 5879 transitions. [2022-07-21 00:00:56,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:56,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5879 transitions. [2022-07-21 00:00:56,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2022-07-21 00:00:56,640 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:56,641 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:00:56,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 00:00:56,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-21 00:00:56,854 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:56,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:56,855 INFO L85 PathProgramCache]: Analyzing trace with hash -685925002, now seen corresponding path program 1 times [2022-07-21 00:00:56,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:56,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970108755] [2022-07-21 00:00:56,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:56,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:57,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2343 backedges. 1521 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2022-07-21 00:00:57,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:57,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970108755] [2022-07-21 00:00:57,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970108755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:57,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:00:57,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 00:00:57,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006451677] [2022-07-21 00:00:57,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:57,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:00:57,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:57,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:00:57,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:57,219 INFO L87 Difference]: Start difference. First operand 5522 states and 5879 transitions. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:57,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:00:57,758 INFO L93 Difference]: Finished difference Result 11398 states and 12174 transitions. [2022-07-21 00:00:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:00:57,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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 878 [2022-07-21 00:00:57,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:00:57,769 INFO L225 Difference]: With dead ends: 11398 [2022-07-21 00:00:57,770 INFO L226 Difference]: Without dead ends: 6056 [2022-07-21 00:00:57,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:00:57,787 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 110 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 00:00:57,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 31 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 00:00:57,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-07-21 00:00:57,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2022-07-21 00:00:57,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.060280759702725) internal successors, (6420), 6055 states have internal predecessors, (6420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:57,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6420 transitions. [2022-07-21 00:00:57,943 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6420 transitions. Word has length 878 [2022-07-21 00:00:57,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:00:57,944 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6420 transitions. [2022-07-21 00:00:57,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:00:57,945 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6420 transitions. [2022-07-21 00:00:57,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2022-07-21 00:00:57,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:00:57,966 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2022-07-21 00:00:57,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 00:00:57,967 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:00:57,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:00:57,967 INFO L85 PathProgramCache]: Analyzing trace with hash -32320893, now seen corresponding path program 1 times [2022-07-21 00:00:57,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:00:57,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089247918] [2022-07-21 00:00:57,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:57,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:00:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:58,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1590 proven. 93 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2022-07-21 00:00:58,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:00:58,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089247918] [2022-07-21 00:00:58,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089247918] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 00:00:58,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996185816] [2022-07-21 00:00:58,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:00:58,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 00:00:58,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:00:58,582 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 00:00:58,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 00:00:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:00:58,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 00:00:58,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 00:00:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1683 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2022-07-21 00:00:59,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 00:00:59,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996185816] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:00:59,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 00:00:59,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-21 00:00:59,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017436885] [2022-07-21 00:00:59,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:00:59,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:00:59,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:00:59,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:00:59,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 00:00:59,574 INFO L87 Difference]: Start difference. First operand 6056 states and 6420 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:00,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:01:00,032 INFO L93 Difference]: Finished difference Result 12110 states and 12849 transitions. [2022-07-21 00:01:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:01:00,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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 896 [2022-07-21 00:01:00,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:01:00,084 INFO L225 Difference]: With dead ends: 12110 [2022-07-21 00:01:00,085 INFO L226 Difference]: Without dead ends: 6234 [2022-07-21 00:01:00,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 899 GetRequests, 895 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 00:01:00,090 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 00:01:00,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 00:01:00,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2022-07-21 00:01:00,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 6056. [2022-07-21 00:01:00,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.061271676300578) internal successors, (6426), 6055 states have internal predecessors, (6426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:00,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6426 transitions. [2022-07-21 00:01:00,181 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6426 transitions. Word has length 896 [2022-07-21 00:01:00,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:01:00,183 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6426 transitions. [2022-07-21 00:01:00,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:00,184 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6426 transitions. [2022-07-21 00:01:00,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 967 [2022-07-21 00:01:00,200 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:01:00,202 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:01:00,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 00:01:00,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-21 00:01:00,428 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:01:00,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:01:00,429 INFO L85 PathProgramCache]: Analyzing trace with hash -546976195, now seen corresponding path program 1 times [2022-07-21 00:01:00,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:01:00,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607991613] [2022-07-21 00:01:00,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:01:00,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:01:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:01:01,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3071 backedges. 2083 proven. 0 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2022-07-21 00:01:01,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:01:01,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607991613] [2022-07-21 00:01:01,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607991613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:01:01,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:01:01,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 00:01:01,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48662323] [2022-07-21 00:01:01,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:01:01,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:01:01,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:01:01,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:01:01,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:01:01,186 INFO L87 Difference]: Start difference. First operand 6056 states and 6426 transitions. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:01,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:01:01,737 INFO L93 Difference]: Finished difference Result 11754 states and 12491 transitions. [2022-07-21 00:01:01,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:01:01,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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 966 [2022-07-21 00:01:01,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:01:01,746 INFO L225 Difference]: With dead ends: 11754 [2022-07-21 00:01:01,747 INFO L226 Difference]: Without dead ends: 5878 [2022-07-21 00:01:01,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:01:01,768 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 00:01:01,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 227 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 00:01:01,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-07-21 00:01:01,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5878. [2022-07-21 00:01:01,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.0535987748851454) internal successors, (6192), 5877 states have internal predecessors, (6192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:01,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6192 transitions. [2022-07-21 00:01:01,863 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6192 transitions. Word has length 966 [2022-07-21 00:01:01,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:01:01,864 INFO L495 AbstractCegarLoop]: Abstraction has 5878 states and 6192 transitions. [2022-07-21 00:01:01,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:01,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6192 transitions. [2022-07-21 00:01:01,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1017 [2022-07-21 00:01:01,891 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:01:01,893 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 3, 3, 3, 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] [2022-07-21 00:01:01,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 00:01:01,893 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:01:01,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:01:01,894 INFO L85 PathProgramCache]: Analyzing trace with hash 768432675, now seen corresponding path program 1 times [2022-07-21 00:01:01,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:01:01,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155069596] [2022-07-21 00:01:01,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:01:01,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:01:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:01:02,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3684 backedges. 1709 proven. 0 refuted. 0 times theorem prover too weak. 1975 trivial. 0 not checked. [2022-07-21 00:01:02,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:01:02,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155069596] [2022-07-21 00:01:02,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155069596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:01:02,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:01:02,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 00:01:02,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133048375] [2022-07-21 00:01:02,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:01:02,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 00:01:02,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:01:02,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 00:01:02,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-21 00:01:02,525 INFO L87 Difference]: Start difference. First operand 5878 states and 6192 transitions. Second operand has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 6 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:03,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:01:03,199 INFO L93 Difference]: Finished difference Result 11292 states and 11883 transitions. [2022-07-21 00:01:03,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 00:01:03,200 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 6 states have internal predecessors, (349), 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 1016 [2022-07-21 00:01:03,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:01:03,208 INFO L225 Difference]: With dead ends: 11292 [2022-07-21 00:01:03,209 INFO L226 Difference]: Without dead ends: 5344 [2022-07-21 00:01:03,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-21 00:01:03,215 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 79 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 00:01:03,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 33 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 00:01:03,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-07-21 00:01:03,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2022-07-21 00:01:03,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0433688286544047) internal successors, (5389), 5165 states have internal predecessors, (5389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:03,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5389 transitions. [2022-07-21 00:01:03,285 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5389 transitions. Word has length 1016 [2022-07-21 00:01:03,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:01:03,286 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5389 transitions. [2022-07-21 00:01:03,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 6 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:03,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5389 transitions. [2022-07-21 00:01:03,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1049 [2022-07-21 00:01:03,297 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:01:03,298 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2022-07-21 00:01:03,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 00:01:03,298 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:01:03,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:01:03,299 INFO L85 PathProgramCache]: Analyzing trace with hash 659097908, now seen corresponding path program 1 times [2022-07-21 00:01:03,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:01:03,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564588535] [2022-07-21 00:01:03,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:01:03,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:01:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:01:03,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3560 backedges. 1091 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2022-07-21 00:01:03,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:01:03,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564588535] [2022-07-21 00:01:03,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564588535] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:01:03,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:01:03,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 00:01:03,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451651363] [2022-07-21 00:01:03,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:01:03,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 00:01:03,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:01:03,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 00:01:03,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:01:03,673 INFO L87 Difference]: Start difference. First operand 5166 states and 5389 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:04,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:01:04,053 INFO L93 Difference]: Finished difference Result 10152 states and 10597 transitions. [2022-07-21 00:01:04,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 00:01:04,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 1048 [2022-07-21 00:01:04,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:01:04,061 INFO L225 Difference]: With dead ends: 10152 [2022-07-21 00:01:04,062 INFO L226 Difference]: Without dead ends: 5166 [2022-07-21 00:01:04,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 00:01:04,067 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 66 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 00:01:04,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 233 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 00:01:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2022-07-21 00:01:04,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166. [2022-07-21 00:01:04,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0358180058083253) internal successors, (5350), 5165 states have internal predecessors, (5350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5350 transitions. [2022-07-21 00:01:04,131 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5350 transitions. Word has length 1048 [2022-07-21 00:01:04,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:01:04,132 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5350 transitions. [2022-07-21 00:01:04,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:04,133 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5350 transitions. [2022-07-21 00:01:04,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1097 [2022-07-21 00:01:04,145 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:01:04,145 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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, 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] [2022-07-21 00:01:04,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 00:01:04,146 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:01:04,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:01:04,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1358554948, now seen corresponding path program 1 times [2022-07-21 00:01:04,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:01:04,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101446790] [2022-07-21 00:01:04,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:01:04,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:01:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:01:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2746 proven. 72 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2022-07-21 00:01:04,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:01:04,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101446790] [2022-07-21 00:01:04,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101446790] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 00:01:04,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064576580] [2022-07-21 00:01:04,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:01:04,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 00:01:04,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:01:04,588 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 00:01:04,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 00:01:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:01:04,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 00:01:04,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 00:01:05,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2459 proven. 0 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-07-21 00:01:05,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 00:01:05,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064576580] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:01:05,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 00:01:05,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-07-21 00:01:05,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705987403] [2022-07-21 00:01:05,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:01:05,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 00:01:05,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:01:05,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 00:01:05,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-21 00:01:05,536 INFO L87 Difference]: Start difference. First operand 5166 states and 5350 transitions. Second operand has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:06,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:01:06,363 INFO L93 Difference]: Finished difference Result 11042 states and 11445 transitions. [2022-07-21 00:01:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 00:01:06,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 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 1096 [2022-07-21 00:01:06,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:01:06,373 INFO L225 Difference]: With dead ends: 11042 [2022-07-21 00:01:06,374 INFO L226 Difference]: Without dead ends: 6056 [2022-07-21 00:01:06,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1100 GetRequests, 1095 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-21 00:01:06,378 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 73 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 00:01:06,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 37 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 00:01:06,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-07-21 00:01:06,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5522. [2022-07-21 00:01:06,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0344140554247419) internal successors, (5711), 5521 states have internal predecessors, (5711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:06,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5711 transitions. [2022-07-21 00:01:06,443 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5711 transitions. Word has length 1096 [2022-07-21 00:01:06,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:01:06,444 INFO L495 AbstractCegarLoop]: Abstraction has 5522 states and 5711 transitions. [2022-07-21 00:01:06,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:06,444 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5711 transitions. [2022-07-21 00:01:06,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1634 [2022-07-21 00:01:06,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:01:06,465 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:01:06,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 00:01:06,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 00:01:06,698 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:01:06,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:01:06,699 INFO L85 PathProgramCache]: Analyzing trace with hash -2052479464, now seen corresponding path program 1 times [2022-07-21 00:01:06,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:01:06,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809440719] [2022-07-21 00:01:06,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:01:06,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:01:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:01:07,803 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 4314 proven. 571 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2022-07-21 00:01:07,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:01:07,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809440719] [2022-07-21 00:01:07,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809440719] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 00:01:07,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893874241] [2022-07-21 00:01:07,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:01:07,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 00:01:07,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:01:07,816 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 00:01:07,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 00:01:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:01:08,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 1992 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 00:01:08,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 00:01:09,686 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 3486 proven. 438 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2022-07-21 00:01:09,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 00:01:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 3591 proven. 333 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2022-07-21 00:01:10,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893874241] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 00:01:10,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 00:01:10,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-07-21 00:01:10,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750632279] [2022-07-21 00:01:10,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 00:01:10,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 00:01:10,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:01:10,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 00:01:10,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-07-21 00:01:10,335 INFO L87 Difference]: Start difference. First operand 5522 states and 5711 transitions. Second operand has 15 states, 15 states have (on average 106.13333333333334) internal successors, (1592), 15 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:13,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:01:13,965 INFO L93 Difference]: Finished difference Result 16575 states and 17230 transitions. [2022-07-21 00:01:13,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 00:01:13,966 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 106.13333333333334) internal successors, (1592), 15 states have internal predecessors, (1592), 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 1633 [2022-07-21 00:01:13,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:01:13,968 INFO L225 Difference]: With dead ends: 16575 [2022-07-21 00:01:13,968 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 00:01:13,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3289 GetRequests, 3267 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=174, Invalid=378, Unknown=0, NotChecked=0, Total=552 [2022-07-21 00:01:13,980 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1642 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 5330 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 6544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 5330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 857 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-21 00:01:13,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1642 Valid, 109 Invalid, 6544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 5330 Invalid, 0 Unknown, 857 Unchecked, 3.3s Time] [2022-07-21 00:01:13,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 00:01:13,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 00:01:13,981 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) [2022-07-21 00:01:13,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 00:01:13,981 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1633 [2022-07-21 00:01:13,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:01:13,983 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 00:01:13,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 106.13333333333334) internal successors, (1592), 15 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 00:01:13,983 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 00:01:13,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 00:01:13,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 00:01:14,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-21 00:01:14,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-21 00:01:14,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 00:01:16,129 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2022-07-21 00:01:16,129 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2022-07-21 00:01:16,130 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2022-07-21 00:01:16,130 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2022-07-21 00:01:16,130 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2022-07-21 00:01:16,130 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,130 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,130 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,130 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2022-07-21 00:01:16,130 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2022-07-21 00:01:16,131 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-07-21 00:01:16,131 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-07-21 00:01:16,131 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-07-21 00:01:16,131 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2022-07-21 00:01:16,131 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2022-07-21 00:01:16,131 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2022-07-21 00:01:16,131 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,131 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,131 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,131 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2022-07-21 00:01:16,131 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-07-21 00:01:16,132 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-07-21 00:01:16,133 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2022-07-21 00:01:16,133 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2022-07-21 00:01:16,133 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2022-07-21 00:01:16,133 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,133 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,134 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,134 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2022-07-21 00:01:16,134 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-07-21 00:01:16,135 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-07-21 00:01:16,135 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-07-21 00:01:16,135 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2022-07-21 00:01:16,135 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2022-07-21 00:01:16,135 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2022-07-21 00:01:16,136 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2022-07-21 00:01:16,136 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,136 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,136 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,136 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2022-07-21 00:01:16,136 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2022-07-21 00:01:16,136 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-07-21 00:01:16,136 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-07-21 00:01:16,137 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-07-21 00:01:16,137 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2022-07-21 00:01:16,137 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2022-07-21 00:01:16,137 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2022-07-21 00:01:16,137 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,137 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,137 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,137 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2022-07-21 00:01:16,138 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-07-21 00:01:16,138 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-07-21 00:01:16,138 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-07-21 00:01:16,138 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2022-07-21 00:01:16,138 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2022-07-21 00:01:16,138 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2022-07-21 00:01:16,138 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2022-07-21 00:01:16,138 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2022-07-21 00:01:16,138 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,139 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,139 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,139 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2022-07-21 00:01:16,140 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-07-21 00:01:16,140 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-07-21 00:01:16,140 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-07-21 00:01:16,140 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2022-07-21 00:01:16,140 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2022-07-21 00:01:16,140 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2022-07-21 00:01:16,140 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-21 00:01:16,140 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,141 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,141 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,141 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2022-07-21 00:01:16,141 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-07-21 00:01:16,141 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-07-21 00:01:16,141 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-07-21 00:01:16,141 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2022-07-21 00:01:16,141 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2022-07-21 00:01:16,142 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2022-07-21 00:01:16,142 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2022-07-21 00:01:16,142 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2022-07-21 00:01:16,142 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,142 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,142 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,142 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2022-07-21 00:01:16,142 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-07-21 00:01:16,143 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-07-21 00:01:16,143 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-07-21 00:01:16,143 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2022-07-21 00:01:16,143 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2022-07-21 00:01:16,143 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2022-07-21 00:01:16,143 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2022-07-21 00:01:16,143 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,144 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,144 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,144 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-07-21 00:01:16,144 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-07-21 00:01:16,144 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-07-21 00:01:16,145 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-21 00:01:16,145 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2022-07-21 00:01:16,145 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2022-07-21 00:01:16,145 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2022-07-21 00:01:16,145 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2022-07-21 00:01:16,145 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2022-07-21 00:01:16,145 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2022-07-21 00:01:16,146 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,146 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,146 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,146 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2022-07-21 00:01:16,146 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2022-07-21 00:01:16,146 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-07-21 00:01:16,146 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-07-21 00:01:16,146 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-07-21 00:01:16,147 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2022-07-21 00:01:16,147 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2022-07-21 00:01:16,147 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2022-07-21 00:01:16,147 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,147 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,147 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,148 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-07-21 00:01:16,148 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-07-21 00:01:16,148 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-07-21 00:01:16,148 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2022-07-21 00:01:16,148 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2022-07-21 00:01:16,148 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2022-07-21 00:01:16,148 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2022-07-21 00:01:16,148 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2022-07-21 00:01:16,149 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,149 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,149 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,149 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2022-07-21 00:01:16,149 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2022-07-21 00:01:16,149 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-07-21 00:01:16,149 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-07-21 00:01:16,149 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-07-21 00:01:16,150 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2022-07-21 00:01:16,150 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2022-07-21 00:01:16,150 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2022-07-21 00:01:16,150 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,150 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,150 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,150 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2022-07-21 00:01:16,150 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-07-21 00:01:16,151 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-07-21 00:01:16,151 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-07-21 00:01:16,151 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2022-07-21 00:01:16,151 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2022-07-21 00:01:16,151 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2022-07-21 00:01:16,151 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2022-07-21 00:01:16,151 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,151 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,151 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,152 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2022-07-21 00:01:16,152 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-07-21 00:01:16,152 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-07-21 00:01:16,152 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-07-21 00:01:16,152 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2022-07-21 00:01:16,152 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2022-07-21 00:01:16,152 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2022-07-21 00:01:16,153 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2022-07-21 00:01:16,153 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,153 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,153 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2022-07-21 00:01:16,153 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-07-21 00:01:16,153 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-07-21 00:01:16,153 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2022-07-21 00:01:16,153 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2022-07-21 00:01:16,154 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2022-07-21 00:01:16,154 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2022-07-21 00:01:16,154 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2022-07-21 00:01:16,154 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,154 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,154 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2022-07-21 00:01:16,154 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-21 00:01:16,155 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-07-21 00:01:16,155 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-07-21 00:01:16,155 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2022-07-21 00:01:16,155 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2022-07-21 00:01:16,155 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2022-07-21 00:01:16,155 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,155 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,156 INFO L895 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse8 (* ~a12~0 9)) (.cse3 (+ ~a12~0 43))) (let ((.cse6 (< 0 .cse3)) (.cse7 (<= 8 ~a21~0)) (.cse4 (<= (div .cse8 10) 546134)) (.cse2 (<= ~a21~0 6)) (.cse0 (= ~a24~0 1)) (.cse5 (<= 7 ~a21~0)) (.cse1 (<= ~a15~0 8))) (or (and .cse0 .cse1 .cse2 (not (<= .cse3 0)) .cse4) (and .cse0 .cse5 (<= ~a21~0 7) (not (= 7 ~a15~0)) .cse4 .cse6) (and .cse0 .cse7 (<= ~a21~0 8) .cse4) (and (<= 9 ~a21~0) .cse0 (< 80 ~a12~0) .cse4) (and .cse0 (= 5 ~a15~0) (= ~a21~0 6)) (and .cse0 (<= 10 ~a21~0) .cse4) (and .cse0 .cse2 .cse6 (<= (div (+ .cse8 858807) 10) 546134)) (and .cse0 .cse1 .cse7 .cse4) (and .cse1 .cse2 (<= (+ 49 ~a12~0) 0)) (and (<= ~a12~0 11) .cse0 .cse5 .cse1)))) [2022-07-21 00:01:16,156 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2022-07-21 00:01:16,156 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2022-07-21 00:01:16,156 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-07-21 00:01:16,156 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-07-21 00:01:16,156 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2022-07-21 00:01:16,157 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2022-07-21 00:01:16,157 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2022-07-21 00:01:16,157 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2022-07-21 00:01:16,157 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,157 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,157 INFO L902 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2022-07-21 00:01:16,157 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2022-07-21 00:01:16,157 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2022-07-21 00:01:16,158 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-07-21 00:01:16,158 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-07-21 00:01:16,158 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2022-07-21 00:01:16,158 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2022-07-21 00:01:16,158 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2022-07-21 00:01:16,158 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,158 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,159 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-21 00:01:16,159 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2022-07-21 00:01:16,159 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2022-07-21 00:01:16,159 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-07-21 00:01:16,159 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-07-21 00:01:16,159 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2022-07-21 00:01:16,159 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2022-07-21 00:01:16,159 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,160 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,160 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-07-21 00:01:16,160 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,160 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2022-07-21 00:01:16,160 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse8 (* ~a12~0 9)) (.cse3 (+ ~a12~0 43))) (let ((.cse6 (< 0 .cse3)) (.cse7 (<= 8 ~a21~0)) (.cse4 (<= (div .cse8 10) 546134)) (.cse2 (<= ~a21~0 6)) (.cse0 (= ~a24~0 1)) (.cse5 (<= 7 ~a21~0)) (.cse1 (<= ~a15~0 8))) (or (and .cse0 .cse1 .cse2 (not (<= .cse3 0)) .cse4) (and .cse0 .cse5 (<= ~a21~0 7) (not (= 7 ~a15~0)) .cse4 .cse6) (and .cse0 .cse7 (<= ~a21~0 8) .cse4) (and (<= 9 ~a21~0) .cse0 (< 80 ~a12~0) .cse4) (and .cse0 (= 5 ~a15~0) (= ~a21~0 6)) (and .cse0 (<= 10 ~a21~0) .cse4) (and .cse0 .cse2 .cse6 (<= (div (+ .cse8 858807) 10) 546134)) (and .cse0 .cse1 .cse7 .cse4) (and .cse1 .cse2 (<= (+ 49 ~a12~0) 0)) (and (<= ~a12~0 11) .cse0 .cse5 .cse1)))) [2022-07-21 00:01:16,160 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2022-07-21 00:01:16,161 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2022-07-21 00:01:16,161 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-07-21 00:01:16,161 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-07-21 00:01:16,161 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-07-21 00:01:16,161 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2022-07-21 00:01:16,161 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2022-07-21 00:01:16,161 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2022-07-21 00:01:16,161 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2022-07-21 00:01:16,161 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,162 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,162 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2022-07-21 00:01:16,162 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2022-07-21 00:01:16,162 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-07-21 00:01:16,162 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-07-21 00:01:16,162 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-07-21 00:01:16,166 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:01:16,171 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 00:01:16,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:01:16 BoogieIcfgContainer [2022-07-21 00:01:16,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 00:01:16,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 00:01:16,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 00:01:16,204 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 00:01:16,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:00:35" (3/4) ... [2022-07-21 00:01:16,207 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 00:01:16,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-21 00:01:16,238 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-21 00:01:16,239 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 00:01:16,240 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 00:01:16,354 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 00:01:16,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 00:01:16,355 INFO L158 Benchmark]: Toolchain (without parser) took 43282.62ms. Allocated memory was 50.3MB in the beginning and 717.2MB in the end (delta: 666.9MB). Free memory was 24.8MB in the beginning and 571.7MB in the end (delta: -546.8MB). Peak memory consumption was 119.7MB. Max. memory is 16.1GB. [2022-07-21 00:01:16,355 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 50.3MB. Free memory was 32.1MB in the beginning and 32.1MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:01:16,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 647.77ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 24.7MB in the beginning and 38.1MB in the end (delta: -13.4MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-07-21 00:01:16,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.08ms. Allocated memory is still 62.9MB. Free memory was 38.1MB in the beginning and 28.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 00:01:16,356 INFO L158 Benchmark]: Boogie Preprocessor took 99.82ms. Allocated memory is still 62.9MB. Free memory was 28.2MB in the beginning and 37.4MB in the end (delta: -9.2MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-07-21 00:01:16,357 INFO L158 Benchmark]: RCFGBuilder took 1218.84ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 37.1MB in the beginning and 33.4MB in the end (delta: 3.7MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2022-07-21 00:01:16,357 INFO L158 Benchmark]: TraceAbstraction took 41048.05ms. Allocated memory was 81.8MB in the beginning and 717.2MB in the end (delta: 635.4MB). Free memory was 32.4MB in the beginning and 584.2MB in the end (delta: -551.7MB). Peak memory consumption was 448.9MB. Max. memory is 16.1GB. [2022-07-21 00:01:16,359 INFO L158 Benchmark]: Witness Printer took 150.51ms. Allocated memory is still 717.2MB. Free memory was 584.2MB in the beginning and 571.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 00:01:16,365 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 50.3MB. Free memory was 32.1MB in the beginning and 32.1MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 647.77ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 24.7MB in the beginning and 38.1MB in the end (delta: -13.4MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.08ms. Allocated memory is still 62.9MB. Free memory was 38.1MB in the beginning and 28.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.82ms. Allocated memory is still 62.9MB. Free memory was 28.2MB in the beginning and 37.4MB in the end (delta: -9.2MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1218.84ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 37.1MB in the beginning and 33.4MB in the end (delta: 3.7MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. * TraceAbstraction took 41048.05ms. Allocated memory was 81.8MB in the beginning and 717.2MB in the end (delta: 635.4MB). Free memory was 32.4MB in the beginning and 584.2MB in the end (delta: -551.7MB). Peak memory consumption was 448.9MB. Max. memory is 16.1GB. * Witness Printer took 150.51ms. Allocated memory is still 717.2MB. Free memory was 584.2MB in the beginning and 571.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. 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: 125]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.0s, OverallIterations: 22, TraceHistogramMax: 14, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 18.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4048 SdHoareTripleChecker+Valid, 16.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4048 mSDsluCounter, 2686 SdHoareTripleChecker+Invalid, 13.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 857 IncrementalHoareTripleChecker+Unchecked, 237 mSDsCounter, 1885 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17465 IncrementalHoareTripleChecker+Invalid, 20207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1885 mSolverCounterUnsat, 2449 mSDtfsCounter, 17465 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8983 GetRequests, 8908 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6056occurred in iteration=16, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 22 MinimizatonAttempts, 3560 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 150 NumberOfFragments, 343 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2998 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 3 FomulaSimplificationsInter, 11786 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 21344 NumberOfCodeBlocks, 21344 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 23751 ConstructedInterpolants, 35 QuantifiedInterpolants, 83601 SizeOfPredicates, 2 NumberOfNonLiveVariables, 8149 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 32 InterpolantComputations, 20 PerfectInterpolantSequences, 71190/73325 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: 30]: Loop Invariant Derived loop invariant: ((((((((((((a24 == 1 && a15 <= 8) && a21 <= 6) && !(a12 + 43 <= 0)) && a12 * 9 / 10 <= 546134) || (((((a24 == 1 && 7 <= a21) && a21 <= 7) && !(7 == a15)) && a12 * 9 / 10 <= 546134) && 0 < a12 + 43)) || (((a24 == 1 && 8 <= a21) && a21 <= 8) && a12 * 9 / 10 <= 546134)) || (((9 <= a21 && a24 == 1) && 80 < a12) && a12 * 9 / 10 <= 546134)) || ((a24 == 1 && 5 == a15) && a21 == 6)) || ((a24 == 1 && 10 <= a21) && a12 * 9 / 10 <= 546134)) || (((a24 == 1 && a21 <= 6) && 0 < a12 + 43) && (a12 * 9 + 858807) / 10 <= 546134)) || (((a24 == 1 && a15 <= 8) && 8 <= a21) && a12 * 9 / 10 <= 546134)) || ((a15 <= 8 && a21 <= 6) && 49 + a12 <= 0)) || (((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((a24 == 1 && a15 <= 8) && a21 <= 6) && !(a12 + 43 <= 0)) && a12 * 9 / 10 <= 546134) || (((((a24 == 1 && 7 <= a21) && a21 <= 7) && !(7 == a15)) && a12 * 9 / 10 <= 546134) && 0 < a12 + 43)) || (((a24 == 1 && 8 <= a21) && a21 <= 8) && a12 * 9 / 10 <= 546134)) || (((9 <= a21 && a24 == 1) && 80 < a12) && a12 * 9 / 10 <= 546134)) || ((a24 == 1 && 5 == a15) && a21 == 6)) || ((a24 == 1 && 10 <= a21) && a12 * 9 / 10 <= 546134)) || (((a24 == 1 && a21 <= 6) && 0 < a12 + 43) && (a12 * 9 + 858807) / 10 <= 546134)) || (((a24 == 1 && a15 <= 8) && 8 <= a21) && a12 * 9 / 10 <= 546134)) || ((a15 <= 8 && a21 <= 6) && 49 + a12 <= 0)) || (((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) RESULT: Ultimate proved your program to be correct! [2022-07-21 00:01:16,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE