./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label55.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/Problem11_label55.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 3ed93fbea5c4ce7662a30833852408f6a41bed2c847c0002d827dceaca299880 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 09:37:08,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 09:37:08,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 09:37:09,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 09:37:09,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 09:37:09,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 09:37:09,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 09:37:09,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 09:37:09,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 09:37:09,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 09:37:09,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 09:37:09,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 09:37:09,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 09:37:09,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 09:37:09,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 09:37:09,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 09:37:09,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 09:37:09,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 09:37:09,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 09:37:09,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 09:37:09,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 09:37:09,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 09:37:09,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 09:37:09,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 09:37:09,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 09:37:09,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 09:37:09,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 09:37:09,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 09:37:09,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 09:37:09,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 09:37:09,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 09:37:09,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 09:37:09,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 09:37:09,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 09:37:09,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 09:37:09,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 09:37:09,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 09:37:09,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 09:37:09,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 09:37:09,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 09:37:09,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 09:37:09,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 09:37:09,102 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 09:37:09,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 09:37:09,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 09:37:09,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 09:37:09,104 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 09:37:09,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 09:37:09,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 09:37:09,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 09:37:09,105 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 09:37:09,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 09:37:09,106 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 09:37:09,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 09:37:09,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 09:37:09,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 09:37:09,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 09:37:09,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 09:37:09,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 09:37:09,107 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 09:37:09,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 09:37:09,108 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 09:37:09,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 09:37:09,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 09:37:09,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 09:37:09,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 09:37:09,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:37:09,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 09:37:09,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 09:37:09,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 09:37:09,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 09:37:09,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 09:37:09,109 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 09:37:09,109 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 09:37:09,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 09:37:09,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 09:37:09,110 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ed93fbea5c4ce7662a30833852408f6a41bed2c847c0002d827dceaca299880 [2021-12-15 09:37:09,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 09:37:09,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 09:37:09,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 09:37:09,350 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 09:37:09,350 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 09:37:09,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label55.c [2021-12-15 09:37:09,401 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91dbe623e/1f04c43652f2487e8aee9e1a91faa747/FLAG49f9b556f [2021-12-15 09:37:09,775 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 09:37:09,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label55.c [2021-12-15 09:37:09,784 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91dbe623e/1f04c43652f2487e8aee9e1a91faa747/FLAG49f9b556f [2021-12-15 09:37:10,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91dbe623e/1f04c43652f2487e8aee9e1a91faa747 [2021-12-15 09:37:10,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 09:37:10,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 09:37:10,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 09:37:10,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 09:37:10,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 09:37:10,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:37:10" (1/1) ... [2021-12-15 09:37:10,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55478d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10, skipping insertion in model container [2021-12-15 09:37:10,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:37:10" (1/1) ... [2021-12-15 09:37:10,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 09:37:10,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 09:37:10,391 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/Problem11_label55.c[6546,6559] [2021-12-15 09:37:10,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:37:10,606 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 09:37:10,632 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/Problem11_label55.c[6546,6559] [2021-12-15 09:37:10,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:37:10,711 INFO L208 MainTranslator]: Completed translation [2021-12-15 09:37:10,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10 WrapperNode [2021-12-15 09:37:10,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 09:37:10,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 09:37:10,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 09:37:10,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 09:37:10,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10" (1/1) ... [2021-12-15 09:37:10,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10" (1/1) ... [2021-12-15 09:37:10,805 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-12-15 09:37:10,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 09:37:10,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 09:37:10,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 09:37:10,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 09:37:10,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10" (1/1) ... [2021-12-15 09:37:10,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10" (1/1) ... [2021-12-15 09:37:10,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10" (1/1) ... [2021-12-15 09:37:10,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10" (1/1) ... [2021-12-15 09:37:10,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10" (1/1) ... [2021-12-15 09:37:10,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10" (1/1) ... [2021-12-15 09:37:10,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10" (1/1) ... [2021-12-15 09:37:10,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 09:37:10,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 09:37:10,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 09:37:10,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 09:37:10,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10" (1/1) ... [2021-12-15 09:37:10,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:37:10,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:37:10,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 09:37:10,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 09:37:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 09:37:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 09:37:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 09:37:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 09:37:11,003 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 09:37:11,004 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 09:37:12,085 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 09:37:12,091 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 09:37:12,092 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 09:37:12,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:37:12 BoogieIcfgContainer [2021-12-15 09:37:12,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 09:37:12,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 09:37:12,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 09:37:12,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 09:37:12,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:37:10" (1/3) ... [2021-12-15 09:37:12,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccb2960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:37:12, skipping insertion in model container [2021-12-15 09:37:12,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:10" (2/3) ... [2021-12-15 09:37:12,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccb2960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:37:12, skipping insertion in model container [2021-12-15 09:37:12,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:37:12" (3/3) ... [2021-12-15 09:37:12,099 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label55.c [2021-12-15 09:37:12,102 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 09:37:12,102 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 09:37:12,130 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 09:37:12,135 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 09:37:12,135 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 09:37:12,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:12,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-15 09:37:12,158 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:12,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:12,159 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:12,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:12,165 INFO L85 PathProgramCache]: Analyzing trace with hash -2068820151, now seen corresponding path program 1 times [2021-12-15 09:37:12,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:12,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246704730] [2021-12-15 09:37:12,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:12,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:37:12,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:12,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246704730] [2021-12-15 09:37:12,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246704730] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:12,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:12,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:37:12,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655742117] [2021-12-15 09:37:12,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:12,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:12,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:12,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:12,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:12,409 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:13,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:13,204 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2021-12-15 09:37:13,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:13,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2021-12-15 09:37:13,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:13,219 INFO L225 Difference]: With dead ends: 761 [2021-12-15 09:37:13,228 INFO L226 Difference]: Without dead ends: 413 [2021-12-15 09:37:13,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:13,237 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 183 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:13,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 222 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 09:37:13,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-12-15 09:37:13,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-12-15 09:37:13,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:13,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2021-12-15 09:37:13,305 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 45 [2021-12-15 09:37:13,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:13,306 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2021-12-15 09:37:13,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:13,306 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2021-12-15 09:37:13,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-15 09:37:13,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:13,310 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 09:37:13,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 09:37:13,317 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:13,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:13,317 INFO L85 PathProgramCache]: Analyzing trace with hash -954308976, now seen corresponding path program 1 times [2021-12-15 09:37:13,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:13,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048705926] [2021-12-15 09:37:13,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:13,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:13,416 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:37:13,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:13,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048705926] [2021-12-15 09:37:13,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048705926] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:13,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:13,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:37:13,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992390815] [2021-12-15 09:37:13,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:13,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:13,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:13,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:13,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:13,421 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:14,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:14,266 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2021-12-15 09:37:14,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:14,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-15 09:37:14,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:14,270 INFO L225 Difference]: With dead ends: 1211 [2021-12-15 09:37:14,270 INFO L226 Difference]: Without dead ends: 800 [2021-12-15 09:37:14,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:14,273 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:14,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 118 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 09:37:14,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-12-15 09:37:14,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2021-12-15 09:37:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3756345177664975) internal successors, (1084), 788 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:14,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1084 transitions. [2021-12-15 09:37:14,313 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1084 transitions. Word has length 113 [2021-12-15 09:37:14,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:14,314 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1084 transitions. [2021-12-15 09:37:14,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:14,315 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1084 transitions. [2021-12-15 09:37:14,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-15 09:37:14,317 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:14,318 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:14,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 09:37:14,318 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:14,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:14,319 INFO L85 PathProgramCache]: Analyzing trace with hash 975979568, now seen corresponding path program 1 times [2021-12-15 09:37:14,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:14,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959425010] [2021-12-15 09:37:14,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:14,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:37:14,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:14,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959425010] [2021-12-15 09:37:14,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959425010] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:14,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:14,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:37:14,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336420219] [2021-12-15 09:37:14,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:14,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:14,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:14,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:14,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:14,463 INFO L87 Difference]: Start difference. First operand 789 states and 1084 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:15,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:15,174 INFO L93 Difference]: Finished difference Result 2314 states and 3184 transitions. [2021-12-15 09:37:15,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:15,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-12-15 09:37:15,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:15,178 INFO L225 Difference]: With dead ends: 2314 [2021-12-15 09:37:15,178 INFO L226 Difference]: Without dead ends: 1527 [2021-12-15 09:37:15,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:15,180 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 120 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:15,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 193 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 09:37:15,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2021-12-15 09:37:15,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2021-12-15 09:37:15,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1525 states have (on average 1.2177049180327868) internal successors, (1857), 1525 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:15,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1857 transitions. [2021-12-15 09:37:15,211 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1857 transitions. Word has length 114 [2021-12-15 09:37:15,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:15,211 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 1857 transitions. [2021-12-15 09:37:15,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:15,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1857 transitions. [2021-12-15 09:37:15,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-15 09:37:15,214 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:15,215 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:15,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 09:37:15,215 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:15,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:15,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1015853899, now seen corresponding path program 1 times [2021-12-15 09:37:15,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:15,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663289424] [2021-12-15 09:37:15,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:15,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:37:15,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:15,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663289424] [2021-12-15 09:37:15,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663289424] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:15,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:15,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:15,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953169344] [2021-12-15 09:37:15,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:15,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:15,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:15,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:15,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:15,331 INFO L87 Difference]: Start difference. First operand 1526 states and 1857 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:15,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:15,951 INFO L93 Difference]: Finished difference Result 3614 states and 4471 transitions. [2021-12-15 09:37:15,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:15,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2021-12-15 09:37:15,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:15,957 INFO L225 Difference]: With dead ends: 3614 [2021-12-15 09:37:15,957 INFO L226 Difference]: Without dead ends: 2274 [2021-12-15 09:37:15,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:15,960 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 160 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:15,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:37:15,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2021-12-15 09:37:15,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1897. [2021-12-15 09:37:15,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1897 states, 1896 states have (on average 1.2162447257383966) internal successors, (2306), 1896 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:15,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2306 transitions. [2021-12-15 09:37:15,986 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2306 transitions. Word has length 172 [2021-12-15 09:37:15,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:15,987 INFO L470 AbstractCegarLoop]: Abstraction has 1897 states and 2306 transitions. [2021-12-15 09:37:15,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:15,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2306 transitions. [2021-12-15 09:37:15,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-12-15 09:37:15,989 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:15,989 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:15,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 09:37:15,990 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:15,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:15,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1109508493, now seen corresponding path program 1 times [2021-12-15 09:37:15,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:15,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377620369] [2021-12-15 09:37:15,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:15,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-15 09:37:16,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:16,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377620369] [2021-12-15 09:37:16,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377620369] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:16,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:16,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:16,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828545449] [2021-12-15 09:37:16,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:16,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:16,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:16,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:16,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:16,120 INFO L87 Difference]: Start difference. First operand 1897 states and 2306 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:16,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:16,663 INFO L93 Difference]: Finished difference Result 4354 states and 5296 transitions. [2021-12-15 09:37:16,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:16,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 226 [2021-12-15 09:37:16,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:16,669 INFO L225 Difference]: With dead ends: 4354 [2021-12-15 09:37:16,669 INFO L226 Difference]: Without dead ends: 2275 [2021-12-15 09:37:16,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:16,672 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 157 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:16,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 347 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:37:16,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2021-12-15 09:37:16,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2265. [2021-12-15 09:37:16,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 2264 states have (on average 1.2137809187279152) internal successors, (2748), 2264 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:16,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 2748 transitions. [2021-12-15 09:37:16,697 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 2748 transitions. Word has length 226 [2021-12-15 09:37:16,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:16,697 INFO L470 AbstractCegarLoop]: Abstraction has 2265 states and 2748 transitions. [2021-12-15 09:37:16,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:16,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 2748 transitions. [2021-12-15 09:37:16,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-15 09:37:16,699 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:16,700 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:16,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 09:37:16,700 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:16,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:16,701 INFO L85 PathProgramCache]: Analyzing trace with hash 616043864, now seen corresponding path program 1 times [2021-12-15 09:37:16,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:16,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126428524] [2021-12-15 09:37:16,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:16,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:16,773 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-15 09:37:16,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:16,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126428524] [2021-12-15 09:37:16,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126428524] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:16,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:16,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:16,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945299675] [2021-12-15 09:37:16,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:16,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:16,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:16,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:16,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:16,776 INFO L87 Difference]: Start difference. First operand 2265 states and 2748 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:17,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:17,371 INFO L93 Difference]: Finished difference Result 5087 states and 6238 transitions. [2021-12-15 09:37:17,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:17,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 227 [2021-12-15 09:37:17,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:17,379 INFO L225 Difference]: With dead ends: 5087 [2021-12-15 09:37:17,380 INFO L226 Difference]: Without dead ends: 2824 [2021-12-15 09:37:17,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:17,383 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 152 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:17,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 380 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:37:17,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2021-12-15 09:37:17,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2633. [2021-12-15 09:37:17,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2632 states have (on average 1.213145896656535) internal successors, (3193), 2632 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 3193 transitions. [2021-12-15 09:37:17,416 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 3193 transitions. Word has length 227 [2021-12-15 09:37:17,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:17,417 INFO L470 AbstractCegarLoop]: Abstraction has 2633 states and 3193 transitions. [2021-12-15 09:37:17,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:17,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 3193 transitions. [2021-12-15 09:37:17,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-12-15 09:37:17,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:17,420 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-12-15 09:37:17,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 09:37:17,420 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:17,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash 213296906, now seen corresponding path program 1 times [2021-12-15 09:37:17,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:17,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988949936] [2021-12-15 09:37:17,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:17,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:17,520 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:37:17,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:17,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988949936] [2021-12-15 09:37:17,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988949936] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:17,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:17,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 09:37:17,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398175721] [2021-12-15 09:37:17,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:17,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:37:17,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:17,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:37:17,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:17,523 INFO L87 Difference]: Start difference. First operand 2633 states and 3193 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:18,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:18,524 INFO L93 Difference]: Finished difference Result 8420 states and 10435 transitions. [2021-12-15 09:37:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:18,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 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 247 [2021-12-15 09:37:18,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:18,542 INFO L225 Difference]: With dead ends: 8420 [2021-12-15 09:37:18,542 INFO L226 Difference]: Without dead ends: 5789 [2021-12-15 09:37:18,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:18,549 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 290 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:18,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 209 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 09:37:18,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5789 states. [2021-12-15 09:37:18,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5789 to 5418. [2021-12-15 09:37:18,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 1.1978955141222078) internal successors, (6489), 5417 states have internal predecessors, (6489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:18,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 6489 transitions. [2021-12-15 09:37:18,639 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 6489 transitions. Word has length 247 [2021-12-15 09:37:18,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:18,640 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 6489 transitions. [2021-12-15 09:37:18,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:18,640 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 6489 transitions. [2021-12-15 09:37:18,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-12-15 09:37:18,644 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:18,644 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-12-15 09:37:18,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 09:37:18,644 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:18,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:18,646 INFO L85 PathProgramCache]: Analyzing trace with hash 389049443, now seen corresponding path program 1 times [2021-12-15 09:37:18,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:18,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832183425] [2021-12-15 09:37:18,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:18,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:18,752 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:37:18,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:18,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832183425] [2021-12-15 09:37:18,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832183425] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:18,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:18,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 09:37:18,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946862124] [2021-12-15 09:37:18,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:18,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:37:18,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:18,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:37:18,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:18,754 INFO L87 Difference]: Start difference. First operand 5418 states and 6489 transitions. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:19,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:19,833 INFO L93 Difference]: Finished difference Result 14344 states and 17467 transitions. [2021-12-15 09:37:19,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:19,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 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 257 [2021-12-15 09:37:19,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:19,856 INFO L225 Difference]: With dead ends: 14344 [2021-12-15 09:37:19,857 INFO L226 Difference]: Without dead ends: 8928 [2021-12-15 09:37:19,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:19,864 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 297 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:19,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 131 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-15 09:37:19,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8928 states. [2021-12-15 09:37:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8928 to 8551. [2021-12-15 09:37:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8551 states, 8550 states have (on average 1.2022222222222223) internal successors, (10279), 8550 states have internal predecessors, (10279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:20,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8551 states to 8551 states and 10279 transitions. [2021-12-15 09:37:20,025 INFO L78 Accepts]: Start accepts. Automaton has 8551 states and 10279 transitions. Word has length 257 [2021-12-15 09:37:20,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:20,026 INFO L470 AbstractCegarLoop]: Abstraction has 8551 states and 10279 transitions. [2021-12-15 09:37:20,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:20,026 INFO L276 IsEmpty]: Start isEmpty. Operand 8551 states and 10279 transitions. [2021-12-15 09:37:20,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-12-15 09:37:20,035 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:20,035 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:20,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 09:37:20,039 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:20,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:20,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1059415188, now seen corresponding path program 1 times [2021-12-15 09:37:20,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:20,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217952303] [2021-12-15 09:37:20,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:20,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:20,134 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:37:20,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:20,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217952303] [2021-12-15 09:37:20,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217952303] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:20,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:20,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:20,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245551191] [2021-12-15 09:37:20,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:20,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:37:20,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:20,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:37:20,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:20,137 INFO L87 Difference]: Start difference. First operand 8551 states and 10279 transitions. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:21,257 INFO L93 Difference]: Finished difference Result 25417 states and 30895 transitions. [2021-12-15 09:37:21,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:21,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 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 257 [2021-12-15 09:37:21,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:21,293 INFO L225 Difference]: With dead ends: 25417 [2021-12-15 09:37:21,293 INFO L226 Difference]: Without dead ends: 16868 [2021-12-15 09:37:21,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:21,303 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 286 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:21,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 84 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-15 09:37:21,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16868 states. [2021-12-15 09:37:21,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16868 to 16867. [2021-12-15 09:37:21,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16867 states, 16866 states have (on average 1.204019921736037) internal successors, (20307), 16866 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:21,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16867 states to 16867 states and 20307 transitions. [2021-12-15 09:37:21,599 INFO L78 Accepts]: Start accepts. Automaton has 16867 states and 20307 transitions. Word has length 257 [2021-12-15 09:37:21,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:21,599 INFO L470 AbstractCegarLoop]: Abstraction has 16867 states and 20307 transitions. [2021-12-15 09:37:21,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:21,600 INFO L276 IsEmpty]: Start isEmpty. Operand 16867 states and 20307 transitions. [2021-12-15 09:37:21,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-12-15 09:37:21,605 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:21,605 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-12-15 09:37:21,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 09:37:21,605 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:21,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:21,606 INFO L85 PathProgramCache]: Analyzing trace with hash -909161094, now seen corresponding path program 1 times [2021-12-15 09:37:21,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:21,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753981408] [2021-12-15 09:37:21,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:21,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-15 09:37:21,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:21,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753981408] [2021-12-15 09:37:21,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753981408] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:21,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:21,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:21,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191338218] [2021-12-15 09:37:21,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:21,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:21,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:21,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:21,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:21,708 INFO L87 Difference]: Start difference. First operand 16867 states and 20307 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:22,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:22,432 INFO L93 Difference]: Finished difference Result 33558 states and 40443 transitions. [2021-12-15 09:37:22,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:22,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 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 264 [2021-12-15 09:37:22,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:22,460 INFO L225 Difference]: With dead ends: 33558 [2021-12-15 09:37:22,460 INFO L226 Difference]: Without dead ends: 16877 [2021-12-15 09:37:22,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:22,475 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 156 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:22,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 377 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:37:22,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16877 states. [2021-12-15 09:37:22,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16877 to 16866. [2021-12-15 09:37:22,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16866 states, 16865 states have (on average 1.1675066706196264) internal successors, (19690), 16865 states have internal predecessors, (19690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16866 states to 16866 states and 19690 transitions. [2021-12-15 09:37:22,717 INFO L78 Accepts]: Start accepts. Automaton has 16866 states and 19690 transitions. Word has length 264 [2021-12-15 09:37:22,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:22,717 INFO L470 AbstractCegarLoop]: Abstraction has 16866 states and 19690 transitions. [2021-12-15 09:37:22,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:22,718 INFO L276 IsEmpty]: Start isEmpty. Operand 16866 states and 19690 transitions. [2021-12-15 09:37:22,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-12-15 09:37:22,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:22,723 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-12-15 09:37:22,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 09:37:22,724 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:22,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:22,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1936772335, now seen corresponding path program 1 times [2021-12-15 09:37:22,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:22,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097598550] [2021-12-15 09:37:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:22,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:22,816 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:37:22,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:22,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097598550] [2021-12-15 09:37:22,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097598550] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:22,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:22,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:22,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938869624] [2021-12-15 09:37:22,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:22,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:37:22,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:22,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:37:22,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:22,819 INFO L87 Difference]: Start difference. First operand 16866 states and 19690 transitions. Second operand has 4 states, 4 states have (on average 69.5) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:23,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:23,723 INFO L93 Difference]: Finished difference Result 35938 states and 42299 transitions. [2021-12-15 09:37:23,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:23,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 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 278 [2021-12-15 09:37:23,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:23,763 INFO L225 Difference]: With dead ends: 35938 [2021-12-15 09:37:23,763 INFO L226 Difference]: Without dead ends: 18889 [2021-12-15 09:37:23,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:23,778 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 186 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:23,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 179 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 09:37:23,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18889 states. [2021-12-15 09:37:24,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18889 to 17584. [2021-12-15 09:37:24,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17584 states, 17583 states have (on average 1.129443212193596) internal successors, (19859), 17583 states have internal predecessors, (19859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:24,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17584 states to 17584 states and 19859 transitions. [2021-12-15 09:37:24,153 INFO L78 Accepts]: Start accepts. Automaton has 17584 states and 19859 transitions. Word has length 278 [2021-12-15 09:37:24,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:24,153 INFO L470 AbstractCegarLoop]: Abstraction has 17584 states and 19859 transitions. [2021-12-15 09:37:24,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 17584 states and 19859 transitions. [2021-12-15 09:37:24,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-12-15 09:37:24,163 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:24,163 INFO L514 BasicCegarLoop]: 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:24,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 09:37:24,164 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:24,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:24,164 INFO L85 PathProgramCache]: Analyzing trace with hash 63979177, now seen corresponding path program 1 times [2021-12-15 09:37:24,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:24,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927071353] [2021-12-15 09:37:24,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:24,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:24,266 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-12-15 09:37:24,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:24,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927071353] [2021-12-15 09:37:24,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927071353] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:24,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:24,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:24,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028705540] [2021-12-15 09:37:24,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:24,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:24,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:24,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:24,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:24,268 INFO L87 Difference]: Start difference. First operand 17584 states and 19859 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:24,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:24,945 INFO L93 Difference]: Finished difference Result 36817 states and 41554 transitions. [2021-12-15 09:37:24,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:24,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 312 [2021-12-15 09:37:24,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:24,973 INFO L225 Difference]: With dead ends: 36817 [2021-12-15 09:37:24,973 INFO L226 Difference]: Without dead ends: 21631 [2021-12-15 09:37:24,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:24,990 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 177 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:24,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 148 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:37:25,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21631 states. [2021-12-15 09:37:25,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21631 to 13159. [2021-12-15 09:37:25,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13159 states, 13158 states have (on average 1.138014895880833) internal successors, (14974), 13158 states have internal predecessors, (14974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:25,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13159 states to 13159 states and 14974 transitions. [2021-12-15 09:37:25,200 INFO L78 Accepts]: Start accepts. Automaton has 13159 states and 14974 transitions. Word has length 312 [2021-12-15 09:37:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:25,202 INFO L470 AbstractCegarLoop]: Abstraction has 13159 states and 14974 transitions. [2021-12-15 09:37:25,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:25,202 INFO L276 IsEmpty]: Start isEmpty. Operand 13159 states and 14974 transitions. [2021-12-15 09:37:25,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-12-15 09:37:25,211 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:25,211 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-12-15 09:37:25,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 09:37:25,212 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:25,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:25,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1336733619, now seen corresponding path program 1 times [2021-12-15 09:37:25,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:25,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243999344] [2021-12-15 09:37:25,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:25,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:25,414 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:37:25,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:25,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243999344] [2021-12-15 09:37:25,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243999344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:25,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:25,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:25,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802495250] [2021-12-15 09:37:25,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:25,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:37:25,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:25,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:37:25,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:25,416 INFO L87 Difference]: Start difference. First operand 13159 states and 14974 transitions. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:26,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:26,470 INFO L93 Difference]: Finished difference Result 31482 states and 35845 transitions. [2021-12-15 09:37:26,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:26,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 325 [2021-12-15 09:37:26,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:26,490 INFO L225 Difference]: With dead ends: 31482 [2021-12-15 09:37:26,490 INFO L226 Difference]: Without dead ends: 18325 [2021-12-15 09:37:26,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:26,501 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 159 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:26,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 125 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 09:37:26,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18325 states. [2021-12-15 09:37:26,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18325 to 17582. [2021-12-15 09:37:26,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17582 states, 17581 states have (on average 1.1327000739434616) internal successors, (19914), 17581 states have internal predecessors, (19914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:26,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17582 states to 17582 states and 19914 transitions. [2021-12-15 09:37:26,742 INFO L78 Accepts]: Start accepts. Automaton has 17582 states and 19914 transitions. Word has length 325 [2021-12-15 09:37:26,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:26,743 INFO L470 AbstractCegarLoop]: Abstraction has 17582 states and 19914 transitions. [2021-12-15 09:37:26,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:26,743 INFO L276 IsEmpty]: Start isEmpty. Operand 17582 states and 19914 transitions. [2021-12-15 09:37:26,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-12-15 09:37:26,751 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:26,751 INFO L514 BasicCegarLoop]: 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, 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, 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] [2021-12-15 09:37:26,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 09:37:26,751 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:26,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:26,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1085023565, now seen corresponding path program 1 times [2021-12-15 09:37:26,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:26,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111922794] [2021-12-15 09:37:26,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:26,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:26,934 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 205 proven. 97 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-15 09:37:26,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:26,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111922794] [2021-12-15 09:37:26,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111922794] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:37:26,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617637023] [2021-12-15 09:37:26,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:26,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:37:26,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:37:26,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 09:37:26,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 09:37:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:27,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 09:37:27,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:37:27,769 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-15 09:37:27,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:37:27,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617637023] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:27,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:37:27,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-15 09:37:27,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437192418] [2021-12-15 09:37:27,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:27,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:37:27,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:27,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:37:27,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-15 09:37:27,772 INFO L87 Difference]: Start difference. First operand 17582 states and 19914 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:28,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:28,706 INFO L93 Difference]: Finished difference Result 40878 states and 46150 transitions. [2021-12-15 09:37:28,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:28,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 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 332 [2021-12-15 09:37:28,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:28,727 INFO L225 Difference]: With dead ends: 40878 [2021-12-15 09:37:28,727 INFO L226 Difference]: Without dead ends: 23666 [2021-12-15 09:37:28,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-15 09:37:28,734 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 188 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:28,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 188 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 09:37:28,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23666 states. [2021-12-15 09:37:28,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23666 to 22926. [2021-12-15 09:37:28,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22926 states, 22925 states have (on average 1.126019629225736) internal successors, (25814), 22925 states have internal predecessors, (25814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:28,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22926 states to 22926 states and 25814 transitions. [2021-12-15 09:37:28,910 INFO L78 Accepts]: Start accepts. Automaton has 22926 states and 25814 transitions. Word has length 332 [2021-12-15 09:37:28,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:28,911 INFO L470 AbstractCegarLoop]: Abstraction has 22926 states and 25814 transitions. [2021-12-15 09:37:28,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:28,911 INFO L276 IsEmpty]: Start isEmpty. Operand 22926 states and 25814 transitions. [2021-12-15 09:37:28,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-12-15 09:37:28,918 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:28,918 INFO L514 BasicCegarLoop]: 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, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:28,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 09:37:29,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-15 09:37:29,132 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:29,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:29,132 INFO L85 PathProgramCache]: Analyzing trace with hash 178802319, now seen corresponding path program 1 times [2021-12-15 09:37:29,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:29,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866234891] [2021-12-15 09:37:29,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:29,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:29,309 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-12-15 09:37:29,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:29,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866234891] [2021-12-15 09:37:29,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866234891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:29,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:29,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 09:37:29,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868328900] [2021-12-15 09:37:29,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:29,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 09:37:29,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:29,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 09:37:29,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-15 09:37:29,313 INFO L87 Difference]: Start difference. First operand 22926 states and 25814 transitions. Second operand has 7 states, 7 states have (on average 37.714285714285715) internal successors, (264), 6 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:29,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:29,904 INFO L93 Difference]: Finished difference Result 43993 states and 49567 transitions. [2021-12-15 09:37:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 09:37:29,905 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.714285714285715) internal successors, (264), 6 states have internal predecessors, (264), 0 states have call successors, (0), 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 349 [2021-12-15 09:37:29,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:29,928 INFO L225 Difference]: With dead ends: 43993 [2021-12-15 09:37:29,928 INFO L226 Difference]: Without dead ends: 21065 [2021-12-15 09:37:29,962 INFO L932 BasicCegarLoop]: 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 [2021-12-15 09:37:29,964 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 369 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:29,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 67 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:37:29,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21065 states. [2021-12-15 09:37:30,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21065 to 21054. [2021-12-15 09:37:30,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21054 states, 21053 states have (on average 1.124352823825583) internal successors, (23671), 21053 states have internal predecessors, (23671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:30,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21054 states to 21054 states and 23671 transitions. [2021-12-15 09:37:30,186 INFO L78 Accepts]: Start accepts. Automaton has 21054 states and 23671 transitions. Word has length 349 [2021-12-15 09:37:30,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:30,186 INFO L470 AbstractCegarLoop]: Abstraction has 21054 states and 23671 transitions. [2021-12-15 09:37:30,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.714285714285715) internal successors, (264), 6 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:30,187 INFO L276 IsEmpty]: Start isEmpty. Operand 21054 states and 23671 transitions. [2021-12-15 09:37:30,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-12-15 09:37:30,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:30,194 INFO L514 BasicCegarLoop]: 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, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:30,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 09:37:30,194 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:30,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:30,194 INFO L85 PathProgramCache]: Analyzing trace with hash 474538808, now seen corresponding path program 1 times [2021-12-15 09:37:30,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:30,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017160143] [2021-12-15 09:37:30,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:30,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:30,422 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-15 09:37:30,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:30,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017160143] [2021-12-15 09:37:30,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017160143] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:30,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:30,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 09:37:30,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008949506] [2021-12-15 09:37:30,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:30,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:37:30,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:30,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:37:30,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:30,423 INFO L87 Difference]: Start difference. First operand 21054 states and 23671 transitions. Second operand has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:31,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:31,313 INFO L93 Difference]: Finished difference Result 44693 states and 50355 transitions. [2021-12-15 09:37:31,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:31,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 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 354 [2021-12-15 09:37:31,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:31,340 INFO L225 Difference]: With dead ends: 44693 [2021-12-15 09:37:31,340 INFO L226 Difference]: Without dead ends: 24373 [2021-12-15 09:37:31,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:31,355 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 285 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:31,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 355 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 09:37:31,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24373 states. [2021-12-15 09:37:31,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24373 to 20675. [2021-12-15 09:37:31,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20675 states, 20674 states have (on average 1.0981425945632195) internal successors, (22703), 20674 states have internal predecessors, (22703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:31,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20675 states to 20675 states and 22703 transitions. [2021-12-15 09:37:31,553 INFO L78 Accepts]: Start accepts. Automaton has 20675 states and 22703 transitions. Word has length 354 [2021-12-15 09:37:31,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:31,553 INFO L470 AbstractCegarLoop]: Abstraction has 20675 states and 22703 transitions. [2021-12-15 09:37:31,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:31,554 INFO L276 IsEmpty]: Start isEmpty. Operand 20675 states and 22703 transitions. [2021-12-15 09:37:31,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-12-15 09:37:31,566 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:31,566 INFO L514 BasicCegarLoop]: 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, 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, 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, 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] [2021-12-15 09:37:31,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 09:37:31,566 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:31,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:31,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1936579874, now seen corresponding path program 1 times [2021-12-15 09:37:31,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:31,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634643408] [2021-12-15 09:37:31,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:31,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:31,731 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 154 proven. 307 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:37:31,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:31,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634643408] [2021-12-15 09:37:31,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634643408] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:37:31,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624327935] [2021-12-15 09:37:31,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:31,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:37:31,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:37:31,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 09:37:31,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 09:37:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:31,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 09:37:31,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:37:33,454 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 154 proven. 307 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:37:33,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 09:37:37,212 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 218 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:37:37,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624327935] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 09:37:37,213 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 09:37:37,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2021-12-15 09:37:37,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335635439] [2021-12-15 09:37:37,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 09:37:37,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-15 09:37:37,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:37,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-15 09:37:37,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-12-15 09:37:37,216 INFO L87 Difference]: Start difference. First operand 20675 states and 22703 transitions. Second operand has 13 states, 13 states have (on average 102.0) internal successors, (1326), 12 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:41,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:41,469 INFO L93 Difference]: Finished difference Result 46327 states and 50901 transitions. [2021-12-15 09:37:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-15 09:37:41,470 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 102.0) internal successors, (1326), 12 states have internal predecessors, (1326), 0 states have call successors, (0), 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 457 [2021-12-15 09:37:41,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:41,501 INFO L225 Difference]: With dead ends: 46327 [2021-12-15 09:37:41,501 INFO L226 Difference]: Without dead ends: 25838 [2021-12-15 09:37:41,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 905 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=165, Unknown=0, NotChecked=0, Total=272 [2021-12-15 09:37:41,516 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 1837 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 5577 mSolverCounterSat, 873 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1837 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 6450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 873 IncrementalHoareTripleChecker+Valid, 5577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:41,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1837 Valid, 180 Invalid, 6450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [873 Valid, 5577 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-15 09:37:41,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25838 states. [2021-12-15 09:37:41,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25838 to 21043. [2021-12-15 09:37:41,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21043 states, 21042 states have (on average 1.0934321832525424) internal successors, (23008), 21042 states have internal predecessors, (23008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:41,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21043 states to 21043 states and 23008 transitions. [2021-12-15 09:37:41,785 INFO L78 Accepts]: Start accepts. Automaton has 21043 states and 23008 transitions. Word has length 457 [2021-12-15 09:37:41,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:41,786 INFO L470 AbstractCegarLoop]: Abstraction has 21043 states and 23008 transitions. [2021-12-15 09:37:41,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 102.0) internal successors, (1326), 12 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:41,787 INFO L276 IsEmpty]: Start isEmpty. Operand 21043 states and 23008 transitions. [2021-12-15 09:37:41,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2021-12-15 09:37:41,806 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:41,806 INFO L514 BasicCegarLoop]: 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, 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, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:41,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 09:37:42,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-15 09:37:42,023 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:42,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:42,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1297293299, now seen corresponding path program 1 times [2021-12-15 09:37:42,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:42,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183797459] [2021-12-15 09:37:42,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:42,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:42,161 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 458 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-12-15 09:37:42,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:42,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183797459] [2021-12-15 09:37:42,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183797459] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:42,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:42,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:42,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055173034] [2021-12-15 09:37:42,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:42,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:42,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:42,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:42,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:42,165 INFO L87 Difference]: Start difference. First operand 21043 states and 23008 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:42,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:42,701 INFO L93 Difference]: Finished difference Result 40261 states and 44020 transitions. [2021-12-15 09:37:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:42,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 543 [2021-12-15 09:37:42,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:42,726 INFO L225 Difference]: With dead ends: 40261 [2021-12-15 09:37:42,726 INFO L226 Difference]: Without dead ends: 21430 [2021-12-15 09:37:42,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:42,741 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 105 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:42,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 125 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:37:42,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21430 states. [2021-12-15 09:37:42,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21430 to 15151. [2021-12-15 09:37:42,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15151 states, 15150 states have (on average 1.091023102310231) internal successors, (16529), 15150 states have internal predecessors, (16529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:42,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15151 states to 15151 states and 16529 transitions. [2021-12-15 09:37:42,972 INFO L78 Accepts]: Start accepts. Automaton has 15151 states and 16529 transitions. Word has length 543 [2021-12-15 09:37:42,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:42,972 INFO L470 AbstractCegarLoop]: Abstraction has 15151 states and 16529 transitions. [2021-12-15 09:37:42,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:42,973 INFO L276 IsEmpty]: Start isEmpty. Operand 15151 states and 16529 transitions. [2021-12-15 09:37:42,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2021-12-15 09:37:42,985 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:42,985 INFO L514 BasicCegarLoop]: 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:42,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 09:37:42,986 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:42,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:42,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1808687197, now seen corresponding path program 1 times [2021-12-15 09:37:42,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:42,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221907754] [2021-12-15 09:37:42,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:42,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:43,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 564 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2021-12-15 09:37:43,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:43,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221907754] [2021-12-15 09:37:43,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221907754] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:43,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:43,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:43,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212772529] [2021-12-15 09:37:43,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:43,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:43,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:43,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:43,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:43,112 INFO L87 Difference]: Start difference. First operand 15151 states and 16529 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:43,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:43,701 INFO L93 Difference]: Finished difference Result 30848 states and 33615 transitions. [2021-12-15 09:37:43,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:43,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 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 562 [2021-12-15 09:37:43,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:43,721 INFO L225 Difference]: With dead ends: 30848 [2021-12-15 09:37:43,721 INFO L226 Difference]: Without dead ends: 16067 [2021-12-15 09:37:43,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:43,733 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 100 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:43,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 129 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:37:43,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16067 states. [2021-12-15 09:37:43,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16067 to 14959. [2021-12-15 09:37:43,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14959 states, 14958 states have (on average 1.0830993448321968) internal successors, (16201), 14958 states have internal predecessors, (16201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:43,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14959 states to 14959 states and 16201 transitions. [2021-12-15 09:37:43,911 INFO L78 Accepts]: Start accepts. Automaton has 14959 states and 16201 transitions. Word has length 562 [2021-12-15 09:37:43,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:43,912 INFO L470 AbstractCegarLoop]: Abstraction has 14959 states and 16201 transitions. [2021-12-15 09:37:43,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:43,912 INFO L276 IsEmpty]: Start isEmpty. Operand 14959 states and 16201 transitions. [2021-12-15 09:37:43,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2021-12-15 09:37:43,931 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:43,947 INFO L514 BasicCegarLoop]: 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, 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, 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, 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] [2021-12-15 09:37:43,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-15 09:37:43,947 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:43,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:43,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1711488327, now seen corresponding path program 1 times [2021-12-15 09:37:43,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:43,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013721983] [2021-12-15 09:37:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:43,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:44,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1183 backedges. 723 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2021-12-15 09:37:44,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:44,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013721983] [2021-12-15 09:37:44,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013721983] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:44,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:44,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:44,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379214160] [2021-12-15 09:37:44,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:44,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:44,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:44,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:44,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:44,180 INFO L87 Difference]: Start difference. First operand 14959 states and 16201 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:44,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:44,701 INFO L93 Difference]: Finished difference Result 28255 states and 30585 transitions. [2021-12-15 09:37:44,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:44,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 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 612 [2021-12-15 09:37:44,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:44,715 INFO L225 Difference]: With dead ends: 28255 [2021-12-15 09:37:44,715 INFO L226 Difference]: Without dead ends: 13850 [2021-12-15 09:37:44,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:44,729 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 189 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:44,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 317 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:37:44,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13850 states. [2021-12-15 09:37:44,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13850 to 13850. [2021-12-15 09:37:44,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13850 states, 13849 states have (on average 1.0756011264351217) internal successors, (14896), 13849 states have internal predecessors, (14896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:44,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13850 states to 13850 states and 14896 transitions. [2021-12-15 09:37:44,864 INFO L78 Accepts]: Start accepts. Automaton has 13850 states and 14896 transitions. Word has length 612 [2021-12-15 09:37:44,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:44,864 INFO L470 AbstractCegarLoop]: Abstraction has 13850 states and 14896 transitions. [2021-12-15 09:37:44,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:44,865 INFO L276 IsEmpty]: Start isEmpty. Operand 13850 states and 14896 transitions. [2021-12-15 09:37:44,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2021-12-15 09:37:44,880 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:44,881 INFO L514 BasicCegarLoop]: 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:44,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-15 09:37:44,882 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:44,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:44,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1350444288, now seen corresponding path program 1 times [2021-12-15 09:37:44,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:44,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116753288] [2021-12-15 09:37:44,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:44,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:45,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 1059 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2021-12-15 09:37:45,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:45,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116753288] [2021-12-15 09:37:45,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116753288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:45,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:45,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:45,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525936062] [2021-12-15 09:37:45,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:45,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:45,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:45,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:45,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:45,247 INFO L87 Difference]: Start difference. First operand 13850 states and 14896 transitions. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:45,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:45,780 INFO L93 Difference]: Finished difference Result 27327 states and 29360 transitions. [2021-12-15 09:37:45,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:45,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 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 695 [2021-12-15 09:37:45,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:45,803 INFO L225 Difference]: With dead ends: 27327 [2021-12-15 09:37:45,804 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 09:37:45,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:45,813 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 52 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:45,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 306 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:37:45,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 09:37:45,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 09:37:45,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:45,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 09:37:45,825 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 695 [2021-12-15 09:37:45,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:45,825 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 09:37:45,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:37:45,826 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 09:37:45,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 09:37:45,830 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 09:37:45,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 09:37:45,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 09:37:54,069 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-12-15 09:37:54,069 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,069 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-12-15 09:37:54,069 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,069 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,069 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,069 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,069 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,069 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-12-15 09:37:54,070 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-12-15 09:37:54,071 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,071 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,071 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,071 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,071 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,071 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,071 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-12-15 09:37:54,071 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-12-15 09:37:54,071 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-12-15 09:37:54,071 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,071 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,071 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,072 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse21 (+ ~a23~0 43))) (let ((.cse17 (<= ~a29~0 277)) (.cse19 (<= ~a23~0 262)) (.cse0 (= ~a25~0 10)) (.cse15 (div ~a29~0 5)) (.cse7 (< 306 ~a23~0)) (.cse14 (<= (+ ~a29~0 275824) 0)) (.cse9 (<= 130 ~a29~0)) (.cse6 (<= ~a25~0 10)) (.cse20 (<= 312 ~a23~0)) (.cse8 (= ~a25~0 12)) (.cse16 (= ~a25~0 13)) (.cse12 (<= ~a23~0 138)) (.cse13 (< 0 .cse21)) (.cse10 (= ~a25~0 9)) (.cse3 (= ~a4~0 1)) (.cse5 (<= (+ ~a23~0 127601) 0)) (.cse11 (<= ~a29~0 140)) (.cse18 (= ~a25~0 11)) (.cse1 (= ~a3~0 1)) (.cse2 (<= .cse21 0)) (.cse4 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse3 .cse4) (and .cse0 .cse6 .cse7 .cse1 .cse3 .cse4) (and .cse5 .cse8 .cse1 .cse4) (and (<= ~a29~0 275) .cse8 .cse9 .cse1 .cse4) (and .cse10 .cse11 .cse12 .cse13 .cse1 .cse4) (and .cse10 .cse1 .cse14 .cse2 .cse4) (and (or (<= (* 2 .cse15) 276191) (<= ~a23~0 306)) .cse16 .cse1 .cse3 .cse4) (and .cse9 .cse8 .cse1 .cse3 .cse4 .cse17) (and (<= ~a23~0 312) .cse18 .cse1 .cse3 .cse4) (and .cse8 .cse12 .cse13 .cse1 .cse4) (and .cse10 (<= ~a29~0 130) .cse3) (and (<= ~a29~0 220) .cse19 .cse6 .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse17 .cse3 .cse4) (and .cse19 .cse8 .cse1 .cse3 .cse4) (and .cse0 .cse11 .cse1 .cse4) (and .cse9 .cse18 .cse1 .cse3 .cse4) (and .cse20 (<= (div (+ (* .cse15 (- 1)) (- 206650)) (- 5)) 138096) .cse6 .cse1 .cse7 (<= 300138 ~a29~0) .cse3 .cse4) (and .cse8 .cse1 .cse14 .cse4) (and .cse10 .cse1 .cse3 .cse4) (and .cse10 .cse9 .cse1 .cse2 .cse4) (and (or (and .cse20 .cse6) .cse18 (and .cse20 .cse8)) (<= (+ ~a29~0 193244) 0) .cse1 .cse3 .cse4) (and .cse16 .cse12 .cse13 .cse1 .cse4) (and .cse10 (<= (+ ~a23~0 599772) 0) .cse3) (and .cse5 .cse18 .cse1 .cse4) (and .cse11 .cse18 .cse1 .cse2 .cse4)))) [2021-12-15 09:37:54,072 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,072 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-12-15 09:37:54,072 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-12-15 09:37:54,072 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,072 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,073 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,073 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,073 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,073 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,073 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-12-15 09:37:54,073 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-12-15 09:37:54,073 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-12-15 09:37:54,073 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-12-15 09:37:54,073 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,074 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,074 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,074 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,074 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,074 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,074 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,074 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-12-15 09:37:54,074 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-12-15 09:37:54,074 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-12-15 09:37:54,075 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,075 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,075 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,075 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,075 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,075 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,075 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,075 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,075 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,076 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-12-15 09:37:54,076 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-12-15 09:37:54,076 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-12-15 09:37:54,076 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,076 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse21 (+ ~a23~0 43))) (let ((.cse17 (<= ~a29~0 277)) (.cse19 (<= ~a23~0 262)) (.cse0 (= ~a25~0 10)) (.cse15 (div ~a29~0 5)) (.cse7 (< 306 ~a23~0)) (.cse14 (<= (+ ~a29~0 275824) 0)) (.cse9 (<= 130 ~a29~0)) (.cse6 (<= ~a25~0 10)) (.cse20 (<= 312 ~a23~0)) (.cse8 (= ~a25~0 12)) (.cse16 (= ~a25~0 13)) (.cse12 (<= ~a23~0 138)) (.cse13 (< 0 .cse21)) (.cse10 (= ~a25~0 9)) (.cse3 (= ~a4~0 1)) (.cse5 (<= (+ ~a23~0 127601) 0)) (.cse11 (<= ~a29~0 140)) (.cse18 (= ~a25~0 11)) (.cse1 (= ~a3~0 1)) (.cse2 (<= .cse21 0)) (.cse4 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse3 .cse4) (and .cse0 .cse6 .cse7 .cse1 .cse3 .cse4) (and .cse5 .cse8 .cse1 .cse4) (and (<= ~a29~0 275) .cse8 .cse9 .cse1 .cse4) (and .cse10 .cse11 .cse12 .cse13 .cse1 .cse4) (and .cse10 .cse1 .cse14 .cse2 .cse4) (and (or (<= (* 2 .cse15) 276191) (<= ~a23~0 306)) .cse16 .cse1 .cse3 .cse4) (and .cse9 .cse8 .cse1 .cse3 .cse4 .cse17) (and (<= ~a23~0 312) .cse18 .cse1 .cse3 .cse4) (and .cse8 .cse12 .cse13 .cse1 .cse4) (and .cse10 (<= ~a29~0 130) .cse3) (and (<= ~a29~0 220) .cse19 .cse6 .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse17 .cse3 .cse4) (and .cse19 .cse8 .cse1 .cse3 .cse4) (and .cse0 .cse11 .cse1 .cse4) (and .cse9 .cse18 .cse1 .cse3 .cse4) (and .cse20 (<= (div (+ (* .cse15 (- 1)) (- 206650)) (- 5)) 138096) .cse6 .cse1 .cse7 (<= 300138 ~a29~0) .cse3 .cse4) (and .cse8 .cse1 .cse14 .cse4) (and .cse10 .cse1 .cse3 .cse4) (and .cse10 .cse9 .cse1 .cse2 .cse4) (and (or (and .cse20 .cse6) .cse18 (and .cse20 .cse8)) (<= (+ ~a29~0 193244) 0) .cse1 .cse3 .cse4) (and .cse16 .cse12 .cse13 .cse1 .cse4) (and .cse10 (<= (+ ~a23~0 599772) 0) .cse3) (and .cse5 .cse18 .cse1 .cse4) (and .cse11 .cse18 .cse1 .cse2 .cse4)))) [2021-12-15 09:37:54,076 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,076 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,076 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,076 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,077 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,077 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,077 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,077 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,077 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-12-15 09:37:54,077 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-12-15 09:37:54,077 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-12-15 09:37:54,077 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-12-15 09:37:54,077 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-12-15 09:37:54,078 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-12-15 09:37:54,078 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-12-15 09:37:54,078 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,078 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,078 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,078 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,078 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,078 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,078 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,079 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,079 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,079 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,079 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 09:37:54,079 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-12-15 09:37:54,079 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-12-15 09:37:54,079 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-12-15 09:37:54,079 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-12-15 09:37:54,079 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,080 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,080 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,080 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,080 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,080 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-12-15 09:37:54,080 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-12-15 09:37:54,080 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-12-15 09:37:54,080 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,080 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,080 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,081 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,081 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-12-15 09:37:54,081 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-12-15 09:37:54,081 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,081 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,081 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,081 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,081 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,081 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,082 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-12-15 09:37:54,082 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-12-15 09:37:54,082 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,082 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,082 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-12-15 09:37:54,082 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-12-15 09:37:54,082 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-12-15 09:37:54,082 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 09:37:54,082 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2021-12-15 09:37:54,083 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,083 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,083 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,083 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,083 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,083 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,083 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,083 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-12-15 09:37:54,083 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-12-15 09:37:54,084 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-12-15 09:37:54,084 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-12-15 09:37:54,084 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-12-15 09:37:54,084 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-12-15 09:37:54,084 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-12-15 09:37:54,084 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,084 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,084 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-12-15 09:37:54,084 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-12-15 09:37:54,085 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,085 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,085 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,085 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,085 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,085 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-12-15 09:37:54,085 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-12-15 09:37:54,085 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-12-15 09:37:54,085 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,086 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,086 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,086 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,086 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,086 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,086 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-12-15 09:37:54,086 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-12-15 09:37:54,086 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-15 09:37:54,086 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,087 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,087 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,087 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,087 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,087 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,087 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,087 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,087 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-12-15 09:37:54,087 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-12-15 09:37:54,088 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-12-15 09:37:54,088 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,088 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,088 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,088 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,088 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,088 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,088 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,088 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,089 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,089 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,089 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,089 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-12-15 09:37:54,089 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-12-15 09:37:54,089 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-15 09:37:54,089 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-12-15 09:37:54,090 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-12-15 09:37:54,090 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,090 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,090 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,090 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,090 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,090 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,090 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,091 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-12-15 09:37:54,091 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-12-15 09:37:54,091 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-15 09:37:54,091 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,091 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,091 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,091 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-12-15 09:37:54,092 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-12-15 09:37:54,092 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,092 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,092 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,092 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,092 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,092 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-12-15 09:37:54,093 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-12-15 09:37:54,093 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,093 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,093 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-12-15 09:37:54,093 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-12-15 09:37:54,093 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,093 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 09:37:54,093 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,093 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,094 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,094 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,094 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,094 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-12-15 09:37:54,094 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-12-15 09:37:54,094 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-12-15 09:37:54,094 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-12-15 09:37:54,094 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,095 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,095 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,095 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,095 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,095 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,095 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,095 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,095 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-12-15 09:37:54,095 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-12-15 09:37:54,096 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-12-15 09:37:54,096 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-12-15 09:37:54,096 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-12-15 09:37:54,096 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-12-15 09:37:54,096 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,096 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,096 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,096 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,097 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,097 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,097 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,097 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-15 09:37:54,097 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-12-15 09:37:54,097 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 09:37:54,097 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,098 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,098 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,098 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,098 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,098 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,098 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-12-15 09:37:54,098 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-12-15 09:37:54,099 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,099 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,099 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,099 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,099 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,099 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,099 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,099 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-12-15 09:37:54,100 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:54,100 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,100 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,100 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-12-15 09:37:54,100 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-12-15 09:37:54,100 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-12-15 09:37:54,100 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-12-15 09:37:54,107 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:54,109 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 09:37:54,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:37:54 BoogieIcfgContainer [2021-12-15 09:37:54,148 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 09:37:54,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 09:37:54,149 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 09:37:54,149 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 09:37:54,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:37:12" (3/4) ... [2021-12-15 09:37:54,151 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 09:37:54,174 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 09:37:54,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 09:37:54,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 09:37:54,177 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 09:37:54,310 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 09:37:54,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 09:37:54,311 INFO L158 Benchmark]: Toolchain (without parser) took 44181.77ms. Allocated memory was 88.1MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 52.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 289.0MB. Max. memory is 16.1GB. [2021-12-15 09:37:54,311 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 60.5MB in the beginning and 60.5MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 09:37:54,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 575.13ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 52.2MB in the beginning and 51.2MB in the end (delta: 1.0MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2021-12-15 09:37:54,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.99ms. Allocated memory is still 107.0MB. Free memory was 51.2MB in the beginning and 65.6MB in the end (delta: -14.4MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2021-12-15 09:37:54,312 INFO L158 Benchmark]: Boogie Preprocessor took 99.49ms. Allocated memory is still 107.0MB. Free memory was 65.1MB in the beginning and 56.0MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 09:37:54,312 INFO L158 Benchmark]: RCFGBuilder took 1187.12ms. Allocated memory was 107.0MB in the beginning and 176.2MB in the end (delta: 69.2MB). Free memory was 56.0MB in the beginning and 101.4MB in the end (delta: -45.4MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2021-12-15 09:37:54,313 INFO L158 Benchmark]: TraceAbstraction took 42053.74ms. Allocated memory was 176.2MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 100.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2021-12-15 09:37:54,313 INFO L158 Benchmark]: Witness Printer took 161.67ms. Allocated memory is still 1.9GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-15 09:37:54,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 60.5MB in the beginning and 60.5MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 575.13ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 52.2MB in the beginning and 51.2MB in the end (delta: 1.0MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.99ms. Allocated memory is still 107.0MB. Free memory was 51.2MB in the beginning and 65.6MB in the end (delta: -14.4MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.49ms. Allocated memory is still 107.0MB. Free memory was 65.1MB in the beginning and 56.0MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1187.12ms. Allocated memory was 107.0MB in the beginning and 176.2MB in the end (delta: 69.2MB). Free memory was 56.0MB in the beginning and 101.4MB in the end (delta: -45.4MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. * TraceAbstraction took 42053.74ms. Allocated memory was 176.2MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 100.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 161.67ms. Allocated memory is still 1.9GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. 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: 151]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 42.0s, OverallIterations: 21, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 20.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5592 SdHoareTripleChecker+Valid, 17.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5592 mSDsluCounter, 4515 SdHoareTripleChecker+Invalid, 14.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 727 mSDsCounter, 2989 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20238 IncrementalHoareTripleChecker+Invalid, 23227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2989 mSolverCounterUnsat, 3788 mSDtfsCounter, 20238 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1317 GetRequests, 1266 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22926occurred in iteration=14, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 28501 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 205 NumberOfFragments, 941 HoareAnnotationTreeSize, 3 FomulaSimplifications, 7122 FormulaSimplificationTreeSizeReduction, 3.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 31194 FormulaSimplificationTreeSizeReductionInter, 4.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 7530 NumberOfCodeBlocks, 7530 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 7963 ConstructedInterpolants, 0 QuantifiedInterpolants, 35319 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1075 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 8557/9511 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: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((a25 == 10 && a3 == 1) && a23 + 43 <= 0) && a4 == 1) && a8 == 15) || ((((a23 + 127601 <= 0 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 10 && a25 <= 10) && 306 < a23) && a3 == 1) && a4 == 1) && a8 == 15)) || (((a23 + 127601 <= 0 && a25 == 12) && a3 == 1) && a8 == 15)) || ((((a29 <= 275 && a25 == 12) && 130 <= a29) && a3 == 1) && a8 == 15)) || (((((a25 == 9 && a29 <= 140) && a23 <= 138) && 0 < a23 + 43) && a3 == 1) && a8 == 15)) || ((((a25 == 9 && a3 == 1) && a29 + 275824 <= 0) && a23 + 43 <= 0) && a8 == 15)) || (((((2 * (a29 / 5) <= 276191 || a23 <= 306) && a25 == 13) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((130 <= a29 && a25 == 12) && a3 == 1) && a4 == 1) && a8 == 15) && a29 <= 277)) || ((((a23 <= 312 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 == 12 && a23 <= 138) && 0 < a23 + 43) && a3 == 1) && a8 == 15)) || ((a25 == 9 && a29 <= 130) && a4 == 1)) || (((((a29 <= 220 && a23 <= 262) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 == 10 && a3 == 1) && a29 <= 277) && a4 == 1) && a8 == 15)) || ((((a23 <= 262 && a25 == 12) && a3 == 1) && a4 == 1) && a8 == 15)) || (((a25 == 10 && a29 <= 140) && a3 == 1) && a8 == 15)) || ((((130 <= a29 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((((312 <= a23 && (a29 / 5 * -1 + -206650) / -5 <= 138096) && a25 <= 10) && a3 == 1) && 306 < a23) && 300138 <= a29) && a4 == 1) && a8 == 15)) || (((a25 == 12 && a3 == 1) && a29 + 275824 <= 0) && a8 == 15)) || (((a25 == 9 && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 == 9 && 130 <= a29) && a3 == 1) && a23 + 43 <= 0) && a8 == 15)) || (((((((312 <= a23 && a25 <= 10) || a25 == 11) || (312 <= a23 && a25 == 12)) && a29 + 193244 <= 0) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 == 13 && a23 <= 138) && 0 < a23 + 43) && a3 == 1) && a8 == 15)) || ((a25 == 9 && a23 + 599772 <= 0) && a4 == 1)) || (((a23 + 127601 <= 0 && a25 == 11) && a3 == 1) && a8 == 15)) || ((((a29 <= 140 && a25 == 11) && a3 == 1) && a23 + 43 <= 0) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((a25 == 10 && a3 == 1) && a23 + 43 <= 0) && a4 == 1) && a8 == 15) || ((((a23 + 127601 <= 0 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 10 && a25 <= 10) && 306 < a23) && a3 == 1) && a4 == 1) && a8 == 15)) || (((a23 + 127601 <= 0 && a25 == 12) && a3 == 1) && a8 == 15)) || ((((a29 <= 275 && a25 == 12) && 130 <= a29) && a3 == 1) && a8 == 15)) || (((((a25 == 9 && a29 <= 140) && a23 <= 138) && 0 < a23 + 43) && a3 == 1) && a8 == 15)) || ((((a25 == 9 && a3 == 1) && a29 + 275824 <= 0) && a23 + 43 <= 0) && a8 == 15)) || (((((2 * (a29 / 5) <= 276191 || a23 <= 306) && a25 == 13) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((130 <= a29 && a25 == 12) && a3 == 1) && a4 == 1) && a8 == 15) && a29 <= 277)) || ((((a23 <= 312 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 == 12 && a23 <= 138) && 0 < a23 + 43) && a3 == 1) && a8 == 15)) || ((a25 == 9 && a29 <= 130) && a4 == 1)) || (((((a29 <= 220 && a23 <= 262) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 == 10 && a3 == 1) && a29 <= 277) && a4 == 1) && a8 == 15)) || ((((a23 <= 262 && a25 == 12) && a3 == 1) && a4 == 1) && a8 == 15)) || (((a25 == 10 && a29 <= 140) && a3 == 1) && a8 == 15)) || ((((130 <= a29 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((((312 <= a23 && (a29 / 5 * -1 + -206650) / -5 <= 138096) && a25 <= 10) && a3 == 1) && 306 < a23) && 300138 <= a29) && a4 == 1) && a8 == 15)) || (((a25 == 12 && a3 == 1) && a29 + 275824 <= 0) && a8 == 15)) || (((a25 == 9 && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 == 9 && 130 <= a29) && a3 == 1) && a23 + 43 <= 0) && a8 == 15)) || (((((((312 <= a23 && a25 <= 10) || a25 == 11) || (312 <= a23 && a25 == 12)) && a29 + 193244 <= 0) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 == 13 && a23 <= 138) && 0 < a23 + 43) && a3 == 1) && a8 == 15)) || ((a25 == 9 && a23 + 599772 <= 0) && a4 == 1)) || (((a23 + 127601 <= 0 && a25 == 11) && a3 == 1) && a8 == 15)) || ((((a29 <= 140 && a25 == 11) && a3 == 1) && a23 + 43 <= 0) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-15 09:37:54,350 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