./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label28.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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_label28.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 8ff48638f08507efa79a38e2e8775c5b4b14feea4f002913b53cd095f4b7874d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 04:24:05,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 04:24:05,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 04:24:05,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 04:24:05,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 04:24:05,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 04:24:05,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 04:24:05,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 04:24:05,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 04:24:05,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 04:24:05,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 04:24:05,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 04:24:05,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 04:24:05,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 04:24:05,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 04:24:05,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 04:24:05,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 04:24:05,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 04:24:05,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 04:24:05,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 04:24:05,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 04:24:05,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 04:24:05,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 04:24:05,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 04:24:05,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 04:24:05,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 04:24:05,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 04:24:05,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 04:24:05,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 04:24:05,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 04:24:05,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 04:24:05,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 04:24:05,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 04:24:05,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 04:24:05,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 04:24:05,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 04:24:05,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 04:24:05,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 04:24:05,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 04:24:05,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 04:24:05,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 04:24:05,246 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 04:24:05,269 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 04:24:05,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 04:24:05,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 04:24:05,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 04:24:05,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 04:24:05,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 04:24:05,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 04:24:05,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 04:24:05,272 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 04:24:05,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 04:24:05,272 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 04:24:05,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 04:24:05,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 04:24:05,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 04:24:05,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 04:24:05,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 04:24:05,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 04:24:05,274 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 04:24:05,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 04:24:05,274 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 04:24:05,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 04:24:05,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 04:24:05,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 04:24:05,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 04:24:05,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:24:05,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 04:24:05,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 04:24:05,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 04:24:05,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 04:24:05,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 04:24:05,276 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 04:24:05,277 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 04:24:05,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 04:24:05,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 04:24:05,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ff48638f08507efa79a38e2e8775c5b4b14feea4f002913b53cd095f4b7874d [2021-12-17 04:24:05,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 04:24:05,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 04:24:05,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 04:24:05,503 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 04:24:05,503 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 04:24:05,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label28.c [2021-12-17 04:24:05,556 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1343cab/15c5db7b99ae4348963724138e21afed/FLAG6e3ce3de6 [2021-12-17 04:24:05,986 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 04:24:05,987 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label28.c [2021-12-17 04:24:05,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1343cab/15c5db7b99ae4348963724138e21afed/FLAG6e3ce3de6 [2021-12-17 04:24:06,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1343cab/15c5db7b99ae4348963724138e21afed [2021-12-17 04:24:06,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 04:24:06,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 04:24:06,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 04:24:06,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 04:24:06,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 04:24:06,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:24:06" (1/1) ... [2021-12-17 04:24:06,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51de6dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06, skipping insertion in model container [2021-12-17 04:24:06,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:24:06" (1/1) ... [2021-12-17 04:24:06,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 04:24:06,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 04:24:06,216 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_label28.c[6999,7012] [2021-12-17 04:24:06,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:24:06,397 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 04:24:06,412 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_label28.c[6999,7012] [2021-12-17 04:24:06,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:24:06,502 INFO L208 MainTranslator]: Completed translation [2021-12-17 04:24:06,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06 WrapperNode [2021-12-17 04:24:06,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 04:24:06,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 04:24:06,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 04:24:06,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 04:24:06,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06" (1/1) ... [2021-12-17 04:24:06,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06" (1/1) ... [2021-12-17 04:24:06,612 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-12-17 04:24:06,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 04:24:06,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 04:24:06,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 04:24:06,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 04:24:06,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06" (1/1) ... [2021-12-17 04:24:06,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06" (1/1) ... [2021-12-17 04:24:06,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06" (1/1) ... [2021-12-17 04:24:06,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06" (1/1) ... [2021-12-17 04:24:06,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06" (1/1) ... [2021-12-17 04:24:06,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06" (1/1) ... [2021-12-17 04:24:06,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06" (1/1) ... [2021-12-17 04:24:06,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 04:24:06,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 04:24:06,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 04:24:06,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 04:24:06,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06" (1/1) ... [2021-12-17 04:24:06,712 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:24:06,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:24:06,729 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) [2021-12-17 04:24:06,730 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 [2021-12-17 04:24:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 04:24:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 04:24:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 04:24:06,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 04:24:06,797 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 04:24:06,798 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 04:24:07,726 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 04:24:07,738 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 04:24:07,738 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 04:24:07,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:24:07 BoogieIcfgContainer [2021-12-17 04:24:07,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 04:24:07,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 04:24:07,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 04:24:07,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 04:24:07,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:24:06" (1/3) ... [2021-12-17 04:24:07,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7793ec22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:24:07, skipping insertion in model container [2021-12-17 04:24:07,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:24:06" (2/3) ... [2021-12-17 04:24:07,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7793ec22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:24:07, skipping insertion in model container [2021-12-17 04:24:07,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:24:07" (3/3) ... [2021-12-17 04:24:07,747 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label28.c [2021-12-17 04:24:07,750 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 04:24:07,751 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 04:24:07,792 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 04:24:07,798 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 [2021-12-17 04:24:07,799 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 04:24:07,818 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) [2021-12-17 04:24:07,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-17 04:24:07,832 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:07,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:24:07,833 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:07,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:07,837 INFO L85 PathProgramCache]: Analyzing trace with hash 563919826, now seen corresponding path program 1 times [2021-12-17 04:24:07,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:07,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627091019] [2021-12-17 04:24:07,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:07,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:08,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:08,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:08,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627091019] [2021-12-17 04:24:08,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627091019] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:08,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:08,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:24:08,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842013419] [2021-12-17 04:24:08,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:08,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:08,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:08,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:08,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:24:08,071 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 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:08,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:08,888 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2021-12-17 04:24:08,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:08,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-12-17 04:24:08,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:08,898 INFO L225 Difference]: With dead ends: 776 [2021-12-17 04:24:08,898 INFO L226 Difference]: Without dead ends: 413 [2021-12-17 04:24:08,901 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 [2021-12-17 04:24:08,903 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 179 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:08,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 196 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 04:24:08,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-12-17 04:24:08,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2021-12-17 04:24:08,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.4585365853658536) internal successors, (598), 410 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2021-12-17 04:24:08,945 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 48 [2021-12-17 04:24:08,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:08,946 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2021-12-17 04:24:08,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:08,946 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2021-12-17 04:24:08,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 04:24:08,948 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:08,949 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, 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] [2021-12-17 04:24:08,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 04:24:08,949 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:08,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2122398730, now seen corresponding path program 1 times [2021-12-17 04:24:08,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:08,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733562876] [2021-12-17 04:24:08,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:08,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:09,035 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:09,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:09,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733562876] [2021-12-17 04:24:09,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733562876] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:09,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:09,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:24:09,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70793443] [2021-12-17 04:24:09,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:09,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:09,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:09,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:09,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:24:09,038 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:09,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:09,641 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2021-12-17 04:24:09,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:09,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 04:24:09,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:09,645 INFO L225 Difference]: With dead ends: 1209 [2021-12-17 04:24:09,645 INFO L226 Difference]: Without dead ends: 800 [2021-12-17 04:24:09,647 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 [2021-12-17 04:24:09,647 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 142 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:09,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 122 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:24:09,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-12-17 04:24:09,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2021-12-17 04:24:09,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.3842239185750635) internal successors, (1088), 786 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:09,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1088 transitions. [2021-12-17 04:24:09,689 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1088 transitions. Word has length 116 [2021-12-17 04:24:09,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:09,689 INFO L470 AbstractCegarLoop]: Abstraction has 787 states and 1088 transitions. [2021-12-17 04:24:09,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:09,690 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1088 transitions. [2021-12-17 04:24:09,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 04:24:09,692 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:09,692 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, 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] [2021-12-17 04:24:09,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 04:24:09,693 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:09,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:09,693 INFO L85 PathProgramCache]: Analyzing trace with hash 151352741, now seen corresponding path program 1 times [2021-12-17 04:24:09,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:09,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257744369] [2021-12-17 04:24:09,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:09,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:09,782 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:09,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:09,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257744369] [2021-12-17 04:24:09,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257744369] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:09,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:09,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:24:09,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471340022] [2021-12-17 04:24:09,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:09,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:24:09,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:09,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:24:09,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:24:09,784 INFO L87 Difference]: Start difference. First operand 787 states and 1088 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:10,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:10,720 INFO L93 Difference]: Finished difference Result 2316 states and 3092 transitions. [2021-12-17 04:24:10,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:24:10,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-12-17 04:24:10,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:10,725 INFO L225 Difference]: With dead ends: 2316 [2021-12-17 04:24:10,725 INFO L226 Difference]: Without dead ends: 1531 [2021-12-17 04:24:10,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:24:10,727 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 483 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:10,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 218 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 04:24:10,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2021-12-17 04:24:10,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1528. [2021-12-17 04:24:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 1.2501637197118534) internal successors, (1909), 1527 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1909 transitions. [2021-12-17 04:24:10,759 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1909 transitions. Word has length 118 [2021-12-17 04:24:10,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:10,760 INFO L470 AbstractCegarLoop]: Abstraction has 1528 states and 1909 transitions. [2021-12-17 04:24:10,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:10,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1909 transitions. [2021-12-17 04:24:10,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-17 04:24:10,771 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:10,772 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, 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] [2021-12-17 04:24:10,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 04:24:10,772 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:10,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:10,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1565625650, now seen corresponding path program 1 times [2021-12-17 04:24:10,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:10,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236544030] [2021-12-17 04:24:10,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:10,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-17 04:24:10,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:10,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236544030] [2021-12-17 04:24:10,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236544030] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:10,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:10,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:24:10,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435103642] [2021-12-17 04:24:10,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:10,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:10,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:10,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:10,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:24:10,874 INFO L87 Difference]: Start difference. First operand 1528 states and 1909 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:11,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:11,409 INFO L93 Difference]: Finished difference Result 3431 states and 4425 transitions. [2021-12-17 04:24:11,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:11,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 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 160 [2021-12-17 04:24:11,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:11,415 INFO L225 Difference]: With dead ends: 3431 [2021-12-17 04:24:11,415 INFO L226 Difference]: Without dead ends: 2089 [2021-12-17 04:24:11,417 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 [2021-12-17 04:24:11,418 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 108 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:11,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 157 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:24:11,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2021-12-17 04:24:11,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2021-12-17 04:24:11,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2089 states, 2088 states have (on average 1.2270114942528736) internal successors, (2562), 2088 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:11,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2562 transitions. [2021-12-17 04:24:11,447 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2562 transitions. Word has length 160 [2021-12-17 04:24:11,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:11,448 INFO L470 AbstractCegarLoop]: Abstraction has 2089 states and 2562 transitions. [2021-12-17 04:24:11,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:11,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2562 transitions. [2021-12-17 04:24:11,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-17 04:24:11,450 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:11,450 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:24:11,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 04:24:11,450 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:11,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:11,451 INFO L85 PathProgramCache]: Analyzing trace with hash 978333351, now seen corresponding path program 1 times [2021-12-17 04:24:11,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:11,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340932658] [2021-12-17 04:24:11,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:11,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:11,509 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:11,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:11,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340932658] [2021-12-17 04:24:11,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340932658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:11,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:11,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:24:11,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838649750] [2021-12-17 04:24:11,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:11,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:11,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:11,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:11,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:24:11,511 INFO L87 Difference]: Start difference. First operand 2089 states and 2562 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:12,054 INFO L93 Difference]: Finished difference Result 5130 states and 6431 transitions. [2021-12-17 04:24:12,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:12,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 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 175 [2021-12-17 04:24:12,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:12,063 INFO L225 Difference]: With dead ends: 5130 [2021-12-17 04:24:12,063 INFO L226 Difference]: Without dead ends: 3227 [2021-12-17 04:24:12,065 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 [2021-12-17 04:24:12,072 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 187 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:12,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 321 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:24:12,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2021-12-17 04:24:12,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 3224. [2021-12-17 04:24:12,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3224 states, 3223 states have (on average 1.2249457027614024) internal successors, (3948), 3223 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:12,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3224 states to 3224 states and 3948 transitions. [2021-12-17 04:24:12,118 INFO L78 Accepts]: Start accepts. Automaton has 3224 states and 3948 transitions. Word has length 175 [2021-12-17 04:24:12,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:12,120 INFO L470 AbstractCegarLoop]: Abstraction has 3224 states and 3948 transitions. [2021-12-17 04:24:12,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:12,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3224 states and 3948 transitions. [2021-12-17 04:24:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-12-17 04:24:12,124 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:12,124 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:24:12,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 04:24:12,125 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:12,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:12,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1640701857, now seen corresponding path program 1 times [2021-12-17 04:24:12,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:12,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646424577] [2021-12-17 04:24:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:12,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-17 04:24:12,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:12,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646424577] [2021-12-17 04:24:12,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646424577] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:12,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:12,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:24:12,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417411324] [2021-12-17 04:24:12,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:12,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:12,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:12,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:12,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:24:12,230 INFO L87 Difference]: Start difference. First operand 3224 states and 3948 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:12,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:12,855 INFO L93 Difference]: Finished difference Result 7750 states and 9607 transitions. [2021-12-17 04:24:12,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:12,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 230 [2021-12-17 04:24:12,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:12,868 INFO L225 Difference]: With dead ends: 7750 [2021-12-17 04:24:12,869 INFO L226 Difference]: Without dead ends: 4712 [2021-12-17 04:24:12,873 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 [2021-12-17 04:24:12,873 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 149 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:12,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 392 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:24:12,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4712 states. [2021-12-17 04:24:12,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4712 to 4697. [2021-12-17 04:24:12,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4697 states, 4696 states have (on average 1.1914395229982964) internal successors, (5595), 4696 states have internal predecessors, (5595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:12,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4697 states to 4697 states and 5595 transitions. [2021-12-17 04:24:12,938 INFO L78 Accepts]: Start accepts. Automaton has 4697 states and 5595 transitions. Word has length 230 [2021-12-17 04:24:12,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:12,939 INFO L470 AbstractCegarLoop]: Abstraction has 4697 states and 5595 transitions. [2021-12-17 04:24:12,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:12,939 INFO L276 IsEmpty]: Start isEmpty. Operand 4697 states and 5595 transitions. [2021-12-17 04:24:12,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-12-17 04:24:12,941 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:12,941 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:24:12,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 04:24:12,942 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:12,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:12,942 INFO L85 PathProgramCache]: Analyzing trace with hash -381057166, now seen corresponding path program 1 times [2021-12-17 04:24:12,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:12,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587639733] [2021-12-17 04:24:12,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:12,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 66 proven. 25 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-17 04:24:13,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:13,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587639733] [2021-12-17 04:24:13,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587639733] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:24:13,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891123211] [2021-12-17 04:24:13,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:13,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:13,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:24:13,099 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) [2021-12-17 04:24:13,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 04:24:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:13,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:24:13,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:24:13,524 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:13,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:24:13,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891123211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:13,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:24:13,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-17 04:24:13,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343538204] [2021-12-17 04:24:13,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:13,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:13,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:13,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:13,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:24:13,527 INFO L87 Difference]: Start difference. First operand 4697 states and 5595 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:14,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:14,144 INFO L93 Difference]: Finished difference Result 9234 states and 11046 transitions. [2021-12-17 04:24:14,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:14,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 236 [2021-12-17 04:24:14,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:14,158 INFO L225 Difference]: With dead ends: 9234 [2021-12-17 04:24:14,158 INFO L226 Difference]: Without dead ends: 4723 [2021-12-17 04:24:14,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:24:14,164 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 137 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:14,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 300 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:24:14,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4723 states. [2021-12-17 04:24:14,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4723 to 4696. [2021-12-17 04:24:14,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4696 states, 4695 states have (on average 1.1682641107561236) internal successors, (5485), 4695 states have internal predecessors, (5485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:14,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4696 states to 4696 states and 5485 transitions. [2021-12-17 04:24:14,243 INFO L78 Accepts]: Start accepts. Automaton has 4696 states and 5485 transitions. Word has length 236 [2021-12-17 04:24:14,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:14,243 INFO L470 AbstractCegarLoop]: Abstraction has 4696 states and 5485 transitions. [2021-12-17 04:24:14,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:14,244 INFO L276 IsEmpty]: Start isEmpty. Operand 4696 states and 5485 transitions. [2021-12-17 04:24:14,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-17 04:24:14,246 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:14,246 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:24:14,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 04:24:14,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:14,464 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:14,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:14,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1626257404, now seen corresponding path program 1 times [2021-12-17 04:24:14,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:14,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924563382] [2021-12-17 04:24:14,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:14,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-17 04:24:14,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:14,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924563382] [2021-12-17 04:24:14,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924563382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:14,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:14,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:24:14,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531211982] [2021-12-17 04:24:14,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:14,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:14,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:14,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:14,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:24:14,562 INFO L87 Difference]: Start difference. First operand 4696 states and 5485 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:15,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:15,145 INFO L93 Difference]: Finished difference Result 10127 states and 11982 transitions. [2021-12-17 04:24:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:15,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 241 [2021-12-17 04:24:15,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:15,160 INFO L225 Difference]: With dead ends: 10127 [2021-12-17 04:24:15,161 INFO L226 Difference]: Without dead ends: 5617 [2021-12-17 04:24:15,165 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 [2021-12-17 04:24:15,165 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 177 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:15,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 153 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:24:15,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5617 states. [2021-12-17 04:24:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5617 to 5617. [2021-12-17 04:24:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5617 states, 5616 states have (on average 1.162037037037037) internal successors, (6526), 5616 states have internal predecessors, (6526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:15,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5617 states to 5617 states and 6526 transitions. [2021-12-17 04:24:15,247 INFO L78 Accepts]: Start accepts. Automaton has 5617 states and 6526 transitions. Word has length 241 [2021-12-17 04:24:15,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:15,247 INFO L470 AbstractCegarLoop]: Abstraction has 5617 states and 6526 transitions. [2021-12-17 04:24:15,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:15,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5617 states and 6526 transitions. [2021-12-17 04:24:15,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-12-17 04:24:15,250 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:15,251 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:24:15,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 04:24:15,251 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:15,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:15,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1319455466, now seen corresponding path program 1 times [2021-12-17 04:24:15,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:15,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357176929] [2021-12-17 04:24:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:15,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:15,335 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:15,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:15,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357176929] [2021-12-17 04:24:15,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357176929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:15,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:15,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:24:15,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410863708] [2021-12-17 04:24:15,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:15,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:15,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:15,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:15,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:24:15,337 INFO L87 Difference]: Start difference. First operand 5617 states and 6526 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) 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) [2021-12-17 04:24:15,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:15,991 INFO L93 Difference]: Finished difference Result 13095 states and 15427 transitions. [2021-12-17 04:24:15,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:15,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) 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 [2021-12-17 04:24:15,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:16,010 INFO L225 Difference]: With dead ends: 13095 [2021-12-17 04:24:16,011 INFO L226 Difference]: Without dead ends: 7664 [2021-12-17 04:24:16,015 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 [2021-12-17 04:24:16,016 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 118 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:16,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 173 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:24:16,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7664 states. [2021-12-17 04:24:16,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7664 to 7659. [2021-12-17 04:24:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7659 states, 7658 states have (on average 1.1676677983807782) internal successors, (8942), 7658 states have internal predecessors, (8942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7659 states to 7659 states and 8942 transitions. [2021-12-17 04:24:16,111 INFO L78 Accepts]: Start accepts. Automaton has 7659 states and 8942 transitions. Word has length 257 [2021-12-17 04:24:16,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:16,112 INFO L470 AbstractCegarLoop]: Abstraction has 7659 states and 8942 transitions. [2021-12-17 04:24:16,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) 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) [2021-12-17 04:24:16,112 INFO L276 IsEmpty]: Start isEmpty. Operand 7659 states and 8942 transitions. [2021-12-17 04:24:16,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-12-17 04:24:16,115 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:16,115 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:24:16,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 04:24:16,116 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:16,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:16,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1274558525, now seen corresponding path program 1 times [2021-12-17 04:24:16,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:16,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488057837] [2021-12-17 04:24:16,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:16,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:16,199 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:16,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:16,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488057837] [2021-12-17 04:24:16,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488057837] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:16,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:16,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 04:24:16,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414087048] [2021-12-17 04:24:16,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:16,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 04:24:16,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:16,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 04:24:16,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:24:16,202 INFO L87 Difference]: Start difference. First operand 7659 states and 8942 transitions. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:17,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:17,612 INFO L93 Difference]: Finished difference Result 22342 states and 26674 transitions. [2021-12-17 04:24:17,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 04:24:17,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 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 267 [2021-12-17 04:24:17,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:17,655 INFO L225 Difference]: With dead ends: 22342 [2021-12-17 04:24:17,655 INFO L226 Difference]: Without dead ends: 14869 [2021-12-17 04:24:17,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:24:17,668 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 371 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:17,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [371 Valid, 107 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 04:24:17,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14869 states. [2021-12-17 04:24:17,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14869 to 14849. [2021-12-17 04:24:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14849 states, 14848 states have (on average 1.1629175646551724) internal successors, (17267), 14848 states have internal predecessors, (17267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:17,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14849 states to 14849 states and 17267 transitions. [2021-12-17 04:24:17,890 INFO L78 Accepts]: Start accepts. Automaton has 14849 states and 17267 transitions. Word has length 267 [2021-12-17 04:24:17,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:17,891 INFO L470 AbstractCegarLoop]: Abstraction has 14849 states and 17267 transitions. [2021-12-17 04:24:17,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:17,891 INFO L276 IsEmpty]: Start isEmpty. Operand 14849 states and 17267 transitions. [2021-12-17 04:24:17,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-12-17 04:24:17,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:17,895 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, 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] [2021-12-17 04:24:17,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 04:24:17,896 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:17,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:17,896 INFO L85 PathProgramCache]: Analyzing trace with hash 845239195, now seen corresponding path program 1 times [2021-12-17 04:24:17,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:17,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731236665] [2021-12-17 04:24:17,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:17,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:17,970 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:17,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:17,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731236665] [2021-12-17 04:24:17,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731236665] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:17,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:17,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:24:17,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474235615] [2021-12-17 04:24:17,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:17,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:24:17,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:17,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:24:17,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:24:17,973 INFO L87 Difference]: Start difference. First operand 14849 states and 17267 transitions. Second operand has 4 states, 4 states have (on average 67.0) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:19,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:19,138 INFO L93 Difference]: Finished difference Result 40240 states and 47102 transitions. [2021-12-17 04:24:19,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:24:19,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2021-12-17 04:24:19,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:19,183 INFO L225 Difference]: With dead ends: 40240 [2021-12-17 04:24:19,183 INFO L226 Difference]: Without dead ends: 25761 [2021-12-17 04:24:19,199 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 [2021-12-17 04:24:19,199 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 269 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:19,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 94 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 04:24:19,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25761 states. [2021-12-17 04:24:19,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25761 to 24651. [2021-12-17 04:24:19,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24651 states, 24650 states have (on average 1.1622312373225152) internal successors, (28649), 24650 states have internal predecessors, (28649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:19,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24651 states to 24651 states and 28649 transitions. [2021-12-17 04:24:19,550 INFO L78 Accepts]: Start accepts. Automaton has 24651 states and 28649 transitions. Word has length 268 [2021-12-17 04:24:19,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:19,550 INFO L470 AbstractCegarLoop]: Abstraction has 24651 states and 28649 transitions. [2021-12-17 04:24:19,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:19,551 INFO L276 IsEmpty]: Start isEmpty. Operand 24651 states and 28649 transitions. [2021-12-17 04:24:19,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-12-17 04:24:19,556 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:19,557 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:24:19,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 04:24:19,557 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:19,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:19,558 INFO L85 PathProgramCache]: Analyzing trace with hash 627435673, now seen corresponding path program 1 times [2021-12-17 04:24:19,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:19,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48269237] [2021-12-17 04:24:19,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:19,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 91 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:19,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:19,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48269237] [2021-12-17 04:24:19,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48269237] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:24:19,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923599111] [2021-12-17 04:24:19,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:19,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:19,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:24:19,732 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) [2021-12-17 04:24:19,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 04:24:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:19,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 04:24:19,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:24:20,439 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:20,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:24:20,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923599111] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:20,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:24:20,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:24:20,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454493313] [2021-12-17 04:24:20,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:20,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:20,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:20,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:20,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:24:20,441 INFO L87 Difference]: Start difference. First operand 24651 states and 28649 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:21,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:21,078 INFO L93 Difference]: Finished difference Result 48771 states and 56913 transitions. [2021-12-17 04:24:21,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:21,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 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 281 [2021-12-17 04:24:21,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:21,119 INFO L225 Difference]: With dead ends: 48771 [2021-12-17 04:24:21,120 INFO L226 Difference]: Without dead ends: 26157 [2021-12-17 04:24:21,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:24:21,139 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 99 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:21,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 349 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:24:21,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26157 states. [2021-12-17 04:24:21,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26157 to 25959. [2021-12-17 04:24:21,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25959 states, 25958 states have (on average 1.1620694968795746) internal successors, (30165), 25958 states have internal predecessors, (30165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25959 states to 25959 states and 30165 transitions. [2021-12-17 04:24:21,490 INFO L78 Accepts]: Start accepts. Automaton has 25959 states and 30165 transitions. Word has length 281 [2021-12-17 04:24:21,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:21,490 INFO L470 AbstractCegarLoop]: Abstraction has 25959 states and 30165 transitions. [2021-12-17 04:24:21,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:21,490 INFO L276 IsEmpty]: Start isEmpty. Operand 25959 states and 30165 transitions. [2021-12-17 04:24:21,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-12-17 04:24:21,498 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:21,499 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2021-12-17 04:24:21,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 04:24:21,711 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,SelfDestructingSolverStorable11 [2021-12-17 04:24:21,711 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:21,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:21,712 INFO L85 PathProgramCache]: Analyzing trace with hash -849038529, now seen corresponding path program 1 times [2021-12-17 04:24:21,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:21,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528973747] [2021-12-17 04:24:21,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:21,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:21,856 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-17 04:24:21,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:21,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528973747] [2021-12-17 04:24:21,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528973747] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:21,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:21,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:24:21,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646580188] [2021-12-17 04:24:21,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:21,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:21,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:21,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:21,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:24:21,857 INFO L87 Difference]: Start difference. First operand 25959 states and 30165 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:22,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:22,494 INFO L93 Difference]: Finished difference Result 55628 states and 64982 transitions. [2021-12-17 04:24:22,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:22,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 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 307 [2021-12-17 04:24:22,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:22,531 INFO L225 Difference]: With dead ends: 55628 [2021-12-17 04:24:22,531 INFO L226 Difference]: Without dead ends: 30040 [2021-12-17 04:24:22,550 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 [2021-12-17 04:24:22,551 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 135 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:22,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 341 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:24:22,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30040 states. [2021-12-17 04:24:22,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30040 to 29821. [2021-12-17 04:24:22,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29821 states, 29820 states have (on average 1.1552984574111336) internal successors, (34451), 29820 states have internal predecessors, (34451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:22,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29821 states to 29821 states and 34451 transitions. [2021-12-17 04:24:22,962 INFO L78 Accepts]: Start accepts. Automaton has 29821 states and 34451 transitions. Word has length 307 [2021-12-17 04:24:22,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:22,962 INFO L470 AbstractCegarLoop]: Abstraction has 29821 states and 34451 transitions. [2021-12-17 04:24:22,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:22,963 INFO L276 IsEmpty]: Start isEmpty. Operand 29821 states and 34451 transitions. [2021-12-17 04:24:22,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-12-17 04:24:22,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:22,971 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, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:24:22,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 04:24:22,972 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:22,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:22,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1981722747, now seen corresponding path program 1 times [2021-12-17 04:24:22,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:22,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266862720] [2021-12-17 04:24:22,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:22,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-17 04:24:23,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:23,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266862720] [2021-12-17 04:24:23,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266862720] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:23,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:23,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:24:23,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557741801] [2021-12-17 04:24:23,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:23,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:23,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:23,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:23,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:24:23,065 INFO L87 Difference]: Start difference. First operand 29821 states and 34451 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:23,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:23,805 INFO L93 Difference]: Finished difference Result 60733 states and 70543 transitions. [2021-12-17 04:24:23,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:23,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 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 316 [2021-12-17 04:24:23,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:23,846 INFO L225 Difference]: With dead ends: 60733 [2021-12-17 04:24:23,847 INFO L226 Difference]: Without dead ends: 33133 [2021-12-17 04:24:23,869 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 [2021-12-17 04:24:23,869 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 145 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:23,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 317 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:24:23,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33133 states. [2021-12-17 04:24:24,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33133 to 32213. [2021-12-17 04:24:24,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32213 states, 32212 states have (on average 1.152365578045449) internal successors, (37120), 32212 states have internal predecessors, (37120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:24,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32213 states to 32213 states and 37120 transitions. [2021-12-17 04:24:24,322 INFO L78 Accepts]: Start accepts. Automaton has 32213 states and 37120 transitions. Word has length 316 [2021-12-17 04:24:24,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:24,322 INFO L470 AbstractCegarLoop]: Abstraction has 32213 states and 37120 transitions. [2021-12-17 04:24:24,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:24,401 INFO L276 IsEmpty]: Start isEmpty. Operand 32213 states and 37120 transitions. [2021-12-17 04:24:24,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-12-17 04:24:24,409 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:24,410 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, 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, 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] [2021-12-17 04:24:24,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 04:24:24,410 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:24,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:24,410 INFO L85 PathProgramCache]: Analyzing trace with hash -2035773229, now seen corresponding path program 1 times [2021-12-17 04:24:24,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:24,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265714670] [2021-12-17 04:24:24,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:24,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:24,567 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 292 proven. 72 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-17 04:24:24,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:24,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265714670] [2021-12-17 04:24:24,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265714670] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:24:24,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708333856] [2021-12-17 04:24:24,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:24,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:24,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:24:24,584 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:24:24,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 04:24:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:24,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 04:24:24,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:24:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-12-17 04:24:26,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:24:26,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708333856] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:26,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:24:26,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-17 04:24:26,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634055040] [2021-12-17 04:24:26,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:26,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:26,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:26,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:26,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:24:26,117 INFO L87 Difference]: Start difference. First operand 32213 states and 37120 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:26,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:26,194 INFO L93 Difference]: Finished difference Result 32307 states and 37215 transitions. [2021-12-17 04:24:26,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:26,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 326 [2021-12-17 04:24:26,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:26,232 INFO L225 Difference]: With dead ends: 32307 [2021-12-17 04:24:26,232 INFO L226 Difference]: Without dead ends: 32305 [2021-12-17 04:24:26,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:24:26,244 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 366 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:26,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 387 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 366 Unchecked, 0.0s Time] [2021-12-17 04:24:26,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32305 states. [2021-12-17 04:24:26,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32305 to 32305. [2021-12-17 04:24:26,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32305 states, 32304 states have (on average 1.151931649331352) internal successors, (37212), 32304 states have internal predecessors, (37212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:26,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32305 states to 32305 states and 37212 transitions. [2021-12-17 04:24:26,661 INFO L78 Accepts]: Start accepts. Automaton has 32305 states and 37212 transitions. Word has length 326 [2021-12-17 04:24:26,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:26,661 INFO L470 AbstractCegarLoop]: Abstraction has 32305 states and 37212 transitions. [2021-12-17 04:24:26,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:26,662 INFO L276 IsEmpty]: Start isEmpty. Operand 32305 states and 37212 transitions. [2021-12-17 04:24:26,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-12-17 04:24:26,670 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:26,670 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, 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, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-17 04:24:26,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 04:24:26,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:26,871 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:26,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:26,871 INFO L85 PathProgramCache]: Analyzing trace with hash -631470291, now seen corresponding path program 1 times [2021-12-17 04:24:26,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:26,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828403430] [2021-12-17 04:24:26,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:26,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:26,959 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-17 04:24:26,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:26,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828403430] [2021-12-17 04:24:26,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828403430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:26,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:26,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:24:26,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748586394] [2021-12-17 04:24:26,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:26,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:26,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:26,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:26,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:24:26,961 INFO L87 Difference]: Start difference. First operand 32305 states and 37212 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:27,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:27,630 INFO L93 Difference]: Finished difference Result 60308 states and 69506 transitions. [2021-12-17 04:24:27,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:27,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 331 [2021-12-17 04:24:27,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:27,664 INFO L225 Difference]: With dead ends: 60308 [2021-12-17 04:24:27,664 INFO L226 Difference]: Without dead ends: 27448 [2021-12-17 04:24:27,685 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 [2021-12-17 04:24:27,686 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 139 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:27,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 151 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:24:27,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27448 states. [2021-12-17 04:24:28,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27448 to 24822. [2021-12-17 04:24:28,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24822 states, 24821 states have (on average 1.1141775109786067) internal successors, (27655), 24821 states have internal predecessors, (27655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:28,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24822 states to 24822 states and 27655 transitions. [2021-12-17 04:24:28,117 INFO L78 Accepts]: Start accepts. Automaton has 24822 states and 27655 transitions. Word has length 331 [2021-12-17 04:24:28,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:28,117 INFO L470 AbstractCegarLoop]: Abstraction has 24822 states and 27655 transitions. [2021-12-17 04:24:28,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:28,118 INFO L276 IsEmpty]: Start isEmpty. Operand 24822 states and 27655 transitions. [2021-12-17 04:24:28,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-12-17 04:24:28,123 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:28,123 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-17 04:24:28,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 04:24:28,124 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:28,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:28,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2040805826, now seen corresponding path program 1 times [2021-12-17 04:24:28,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:28,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652991748] [2021-12-17 04:24:28,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:28,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 281 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:28,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:28,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652991748] [2021-12-17 04:24:28,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652991748] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:24:28,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235128538] [2021-12-17 04:24:28,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:28,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:28,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:24:28,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:24:28,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 04:24:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:28,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-17 04:24:28,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:24:28,913 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-17 04:24:28,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:24:28,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235128538] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:28,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:24:28,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-17 04:24:28,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829336364] [2021-12-17 04:24:28,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:28,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:28,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:28,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:28,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:24:28,915 INFO L87 Difference]: Start difference. First operand 24822 states and 27655 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:29,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:29,570 INFO L93 Difference]: Finished difference Result 52972 states and 58994 transitions. [2021-12-17 04:24:29,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:29,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 335 [2021-12-17 04:24:29,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:29,604 INFO L225 Difference]: With dead ends: 52972 [2021-12-17 04:24:29,604 INFO L226 Difference]: Without dead ends: 27784 [2021-12-17 04:24:29,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:24:29,620 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 84 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:29,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 363 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:24:29,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27784 states. [2021-12-17 04:24:29,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27784 to 25570. [2021-12-17 04:24:29,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25570 states, 25569 states have (on average 1.1050490828737924) internal successors, (28255), 25569 states have internal predecessors, (28255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:29,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25570 states to 25570 states and 28255 transitions. [2021-12-17 04:24:29,878 INFO L78 Accepts]: Start accepts. Automaton has 25570 states and 28255 transitions. Word has length 335 [2021-12-17 04:24:29,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:29,879 INFO L470 AbstractCegarLoop]: Abstraction has 25570 states and 28255 transitions. [2021-12-17 04:24:29,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:29,879 INFO L276 IsEmpty]: Start isEmpty. Operand 25570 states and 28255 transitions. [2021-12-17 04:24:29,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-12-17 04:24:29,887 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:29,887 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, 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, 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] [2021-12-17 04:24:29,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 04:24:30,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-17 04:24:30,103 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:30,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1133150815, now seen corresponding path program 1 times [2021-12-17 04:24:30,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:30,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234540641] [2021-12-17 04:24:30,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:30,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:30,254 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 252 proven. 51 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-17 04:24:30,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:30,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234540641] [2021-12-17 04:24:30,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234540641] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:24:30,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297848886] [2021-12-17 04:24:30,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:30,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:30,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:24:30,256 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:24:30,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 04:24:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:30,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-17 04:24:30,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:24:31,050 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-17 04:24:31,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:24:31,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297848886] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:31,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:24:31,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:24:31,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755632532] [2021-12-17 04:24:31,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:31,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:31,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:31,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:31,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:24:31,051 INFO L87 Difference]: Start difference. First operand 25570 states and 28255 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:31,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:31,585 INFO L93 Difference]: Finished difference Result 49662 states and 54889 transitions. [2021-12-17 04:24:31,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:31,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 356 [2021-12-17 04:24:31,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:31,611 INFO L225 Difference]: With dead ends: 49662 [2021-12-17 04:24:31,611 INFO L226 Difference]: Without dead ends: 26123 [2021-12-17 04:24:31,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 355 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:24:31,627 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 91 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:31,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 151 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:24:31,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26123 states. [2021-12-17 04:24:31,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26123 to 22441. [2021-12-17 04:24:31,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22441 states, 22440 states have (on average 1.1030748663101604) internal successors, (24753), 22440 states have internal predecessors, (24753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:31,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22441 states to 22441 states and 24753 transitions. [2021-12-17 04:24:31,825 INFO L78 Accepts]: Start accepts. Automaton has 22441 states and 24753 transitions. Word has length 356 [2021-12-17 04:24:31,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:31,826 INFO L470 AbstractCegarLoop]: Abstraction has 22441 states and 24753 transitions. [2021-12-17 04:24:31,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:31,826 INFO L276 IsEmpty]: Start isEmpty. Operand 22441 states and 24753 transitions. [2021-12-17 04:24:31,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-12-17 04:24:31,835 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:31,835 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:24:31,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 04:24:32,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-17 04:24:32,035 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:32,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:32,036 INFO L85 PathProgramCache]: Analyzing trace with hash 703795040, now seen corresponding path program 1 times [2021-12-17 04:24:32,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:32,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659502430] [2021-12-17 04:24:32,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:32,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-17 04:24:32,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:32,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659502430] [2021-12-17 04:24:32,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659502430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:32,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:32,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:24:32,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701204697] [2021-12-17 04:24:32,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:32,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:24:32,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:32,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:24:32,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:24:32,125 INFO L87 Difference]: Start difference. First operand 22441 states and 24753 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:32,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:32,763 INFO L93 Difference]: Finished difference Result 46349 states and 51138 transitions. [2021-12-17 04:24:32,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:24:32,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 371 [2021-12-17 04:24:32,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:32,789 INFO L225 Difference]: With dead ends: 46349 [2021-12-17 04:24:32,789 INFO L226 Difference]: Without dead ends: 24278 [2021-12-17 04:24:32,802 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 [2021-12-17 04:24:32,803 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 126 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:32,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 64 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:24:32,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24278 states. [2021-12-17 04:24:33,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24278 to 23155. [2021-12-17 04:24:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23155 states, 23154 states have (on average 1.096095707005269) internal successors, (25379), 23154 states have internal predecessors, (25379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:33,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23155 states to 23155 states and 25379 transitions. [2021-12-17 04:24:33,049 INFO L78 Accepts]: Start accepts. Automaton has 23155 states and 25379 transitions. Word has length 371 [2021-12-17 04:24:33,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:33,050 INFO L470 AbstractCegarLoop]: Abstraction has 23155 states and 25379 transitions. [2021-12-17 04:24:33,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:33,050 INFO L276 IsEmpty]: Start isEmpty. Operand 23155 states and 25379 transitions. [2021-12-17 04:24:33,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-12-17 04:24:33,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:33,058 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 04:24:33,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 04:24:33,059 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:33,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:33,059 INFO L85 PathProgramCache]: Analyzing trace with hash -84443467, now seen corresponding path program 1 times [2021-12-17 04:24:33,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:33,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234312398] [2021-12-17 04:24:33,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:33,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 281 proven. 58 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-17 04:24:33,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:33,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234312398] [2021-12-17 04:24:33,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234312398] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:24:33,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344862747] [2021-12-17 04:24:33,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:33,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:33,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:24:33,252 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:24:33,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 04:24:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:33,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 04:24:33,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:24:34,188 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 202 proven. 137 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-17 04:24:34,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 04:24:34,926 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 293 proven. 46 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-17 04:24:34,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344862747] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 04:24:34,926 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 04:24:34,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2021-12-17 04:24:34,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629978507] [2021-12-17 04:24:34,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 04:24:34,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 04:24:34,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:34,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 04:24:34,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-12-17 04:24:34,928 INFO L87 Difference]: Start difference. First operand 23155 states and 25379 transitions. Second operand has 11 states, 11 states have (on average 75.63636363636364) internal successors, (832), 11 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:38,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:38,835 INFO L93 Difference]: Finished difference Result 57728 states and 63374 transitions. [2021-12-17 04:24:38,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-17 04:24:38,836 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 75.63636363636364) internal successors, (832), 11 states have internal predecessors, (832), 0 states have call successors, (0), 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 373 [2021-12-17 04:24:38,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:38,871 INFO L225 Difference]: With dead ends: 57728 [2021-12-17 04:24:38,872 INFO L226 Difference]: Without dead ends: 33793 [2021-12-17 04:24:38,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 754 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=407, Unknown=0, NotChecked=0, Total=600 [2021-12-17 04:24:38,889 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 2748 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 6015 mSolverCounterSat, 887 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2748 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 6902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 887 IncrementalHoareTripleChecker+Valid, 6015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:38,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2748 Valid, 201 Invalid, 6902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [887 Valid, 6015 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-17 04:24:38,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33793 states. [2021-12-17 04:24:39,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33793 to 24752. [2021-12-17 04:24:39,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24752 states, 24751 states have (on average 1.0851682760292514) internal successors, (26859), 24751 states have internal predecessors, (26859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:39,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24752 states to 24752 states and 26859 transitions. [2021-12-17 04:24:39,233 INFO L78 Accepts]: Start accepts. Automaton has 24752 states and 26859 transitions. Word has length 373 [2021-12-17 04:24:39,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:39,234 INFO L470 AbstractCegarLoop]: Abstraction has 24752 states and 26859 transitions. [2021-12-17 04:24:39,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 75.63636363636364) internal successors, (832), 11 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:39,234 INFO L276 IsEmpty]: Start isEmpty. Operand 24752 states and 26859 transitions. [2021-12-17 04:24:39,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-12-17 04:24:39,241 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:39,241 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 04:24:39,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-17 04:24:39,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:39,458 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:39,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:39,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1682522593, now seen corresponding path program 1 times [2021-12-17 04:24:39,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:39,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714268197] [2021-12-17 04:24:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:39,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:39,578 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 137 proven. 202 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-17 04:24:39,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:39,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714268197] [2021-12-17 04:24:39,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714268197] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:24:39,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073228870] [2021-12-17 04:24:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:39,580 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:39,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:24:39,581 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:24:39,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-17 04:24:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:39,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 04:24:39,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:24:40,183 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 391 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-17 04:24:40,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:24:40,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073228870] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:40,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:24:40,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:24:40,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840352497] [2021-12-17 04:24:40,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:40,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:24:40,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:40,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:24:40,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:24:40,185 INFO L87 Difference]: Start difference. First operand 24752 states and 26859 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:41,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:41,125 INFO L93 Difference]: Finished difference Result 49331 states and 53611 transitions. [2021-12-17 04:24:41,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:24:41,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 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 379 [2021-12-17 04:24:41,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:41,155 INFO L225 Difference]: With dead ends: 49331 [2021-12-17 04:24:41,155 INFO L226 Difference]: Without dead ends: 26607 [2021-12-17 04:24:41,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:24:41,172 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 216 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:41,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 99 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 04:24:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26607 states. [2021-12-17 04:24:41,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26607 to 25860. [2021-12-17 04:24:41,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25860 states, 25859 states have (on average 1.0830271858927258) internal successors, (28006), 25859 states have internal predecessors, (28006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:41,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25860 states to 25860 states and 28006 transitions. [2021-12-17 04:24:41,487 INFO L78 Accepts]: Start accepts. Automaton has 25860 states and 28006 transitions. Word has length 379 [2021-12-17 04:24:41,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:41,488 INFO L470 AbstractCegarLoop]: Abstraction has 25860 states and 28006 transitions. [2021-12-17 04:24:41,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:41,488 INFO L276 IsEmpty]: Start isEmpty. Operand 25860 states and 28006 transitions. [2021-12-17 04:24:41,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2021-12-17 04:24:41,496 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:41,496 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 04:24:41,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-17 04:24:41,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:41,707 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:41,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:41,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1802628130, now seen corresponding path program 1 times [2021-12-17 04:24:41,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:41,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411198263] [2021-12-17 04:24:41,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:41,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:41,822 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 137 proven. 229 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-17 04:24:41,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:41,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411198263] [2021-12-17 04:24:41,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411198263] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:24:41,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165064580] [2021-12-17 04:24:41,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:41,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:41,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:24:41,824 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:24:41,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-17 04:24:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:41,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-17 04:24:41,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:24:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 242 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:43,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 04:24:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 242 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:24:46,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165064580] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 04:24:46,974 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 04:24:46,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2021-12-17 04:24:46,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743293078] [2021-12-17 04:24:46,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 04:24:46,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 04:24:46,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:46,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 04:24:46,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-12-17 04:24:46,977 INFO L87 Difference]: Start difference. First operand 25860 states and 28006 transitions. Second operand has 12 states, 12 states have (on average 80.5) internal successors, (966), 11 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:52,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:52,064 INFO L93 Difference]: Finished difference Result 69339 states and 75022 transitions. [2021-12-17 04:24:52,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-17 04:24:52,064 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 80.5) internal successors, (966), 11 states have internal predecessors, (966), 0 states have call successors, (0), 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 415 [2021-12-17 04:24:52,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:52,110 INFO L225 Difference]: With dead ends: 69339 [2021-12-17 04:24:52,110 INFO L226 Difference]: Without dead ends: 43665 [2021-12-17 04:24:52,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 821 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=395, Invalid=1011, Unknown=0, NotChecked=0, Total=1406 [2021-12-17 04:24:52,130 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 4995 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 5868 mSolverCounterSat, 1385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4995 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 7253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1385 IncrementalHoareTripleChecker+Valid, 5868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:52,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4995 Valid, 161 Invalid, 7253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1385 Valid, 5868 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 04:24:52,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43665 states. [2021-12-17 04:24:52,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43665 to 23453. [2021-12-17 04:24:52,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23453 states, 23452 states have (on average 1.0739382568650861) internal successors, (25186), 23452 states have internal predecessors, (25186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:52,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23453 states to 23453 states and 25186 transitions. [2021-12-17 04:24:52,510 INFO L78 Accepts]: Start accepts. Automaton has 23453 states and 25186 transitions. Word has length 415 [2021-12-17 04:24:52,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:52,510 INFO L470 AbstractCegarLoop]: Abstraction has 23453 states and 25186 transitions. [2021-12-17 04:24:52,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 80.5) internal successors, (966), 11 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:52,511 INFO L276 IsEmpty]: Start isEmpty. Operand 23453 states and 25186 transitions. [2021-12-17 04:24:52,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2021-12-17 04:24:52,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:52,525 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:24:52,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-17 04:24:52,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-17 04:24:52,736 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:52,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:52,737 INFO L85 PathProgramCache]: Analyzing trace with hash 762866496, now seen corresponding path program 1 times [2021-12-17 04:24:52,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:52,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011457667] [2021-12-17 04:24:52,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:52,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:52,882 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 183 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-12-17 04:24:52,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:52,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011457667] [2021-12-17 04:24:52,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011457667] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:24:52,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952788886] [2021-12-17 04:24:52,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:52,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:52,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:24:52,885 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:24:52,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-17 04:24:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:53,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-17 04:24:53,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:24:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 235 proven. 452 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-17 04:24:53,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 04:24:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 183 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-12-17 04:24:55,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952788886] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 04:24:55,790 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 04:24:55,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 9 [2021-12-17 04:24:55,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075774485] [2021-12-17 04:24:55,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 04:24:55,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-17 04:24:55,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:55,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-17 04:24:55,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2021-12-17 04:24:55,792 INFO L87 Difference]: Start difference. First operand 23453 states and 25186 transitions. Second operand has 10 states, 10 states have (on average 80.0) internal successors, (800), 9 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:57,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:57,972 INFO L93 Difference]: Finished difference Result 62953 states and 67513 transitions. [2021-12-17 04:24:57,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 04:24:57,972 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 80.0) internal successors, (800), 9 states have internal predecessors, (800), 0 states have call successors, (0), 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 570 [2021-12-17 04:24:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:58,013 INFO L225 Difference]: With dead ends: 62953 [2021-12-17 04:24:58,013 INFO L226 Difference]: Without dead ends: 42452 [2021-12-17 04:24:58,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1142 GetRequests, 1134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2021-12-17 04:24:58,030 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 1297 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 3077 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 3077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:58,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1297 Valid, 122 Invalid, 3577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 3077 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-17 04:24:58,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42452 states. [2021-12-17 04:24:58,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42452 to 28985. [2021-12-17 04:24:58,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28985 states, 28984 states have (on average 1.071384211979023) internal successors, (31053), 28984 states have internal predecessors, (31053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:58,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28985 states to 28985 states and 31053 transitions. [2021-12-17 04:24:58,373 INFO L78 Accepts]: Start accepts. Automaton has 28985 states and 31053 transitions. Word has length 570 [2021-12-17 04:24:58,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:24:58,373 INFO L470 AbstractCegarLoop]: Abstraction has 28985 states and 31053 transitions. [2021-12-17 04:24:58,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 80.0) internal successors, (800), 9 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:58,373 INFO L276 IsEmpty]: Start isEmpty. Operand 28985 states and 31053 transitions. [2021-12-17 04:24:58,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2021-12-17 04:24:58,387 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:24:58,387 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:24:58,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-17 04:24:58,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:24:58,599 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:24:58,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:24:58,600 INFO L85 PathProgramCache]: Analyzing trace with hash 745598085, now seen corresponding path program 1 times [2021-12-17 04:24:58,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:24:58,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557015336] [2021-12-17 04:24:58,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:24:58,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:24:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:24:58,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 896 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2021-12-17 04:24:58,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:24:58,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557015336] [2021-12-17 04:24:58,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557015336] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:24:58,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:24:58,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:24:58,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235875012] [2021-12-17 04:24:58,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:24:58,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:24:58,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:24:58,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:24:58,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:24:58,736 INFO L87 Difference]: Start difference. First operand 28985 states and 31053 transitions. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:24:59,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:24:59,646 INFO L93 Difference]: Finished difference Result 59635 states and 63911 transitions. [2021-12-17 04:24:59,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:24:59,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 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 584 [2021-12-17 04:24:59,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:24:59,682 INFO L225 Difference]: With dead ends: 59635 [2021-12-17 04:24:59,682 INFO L226 Difference]: Without dead ends: 32310 [2021-12-17 04:24:59,701 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 [2021-12-17 04:24:59,702 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 187 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:24:59,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 66 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:24:59,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32310 states. [2021-12-17 04:25:00,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32310 to 30090. [2021-12-17 04:25:00,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30090 states, 30089 states have (on average 1.0702914686430256) internal successors, (32204), 30089 states have internal predecessors, (32204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:00,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30090 states to 30090 states and 32204 transitions. [2021-12-17 04:25:00,069 INFO L78 Accepts]: Start accepts. Automaton has 30090 states and 32204 transitions. Word has length 584 [2021-12-17 04:25:00,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:25:00,069 INFO L470 AbstractCegarLoop]: Abstraction has 30090 states and 32204 transitions. [2021-12-17 04:25:00,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:00,070 INFO L276 IsEmpty]: Start isEmpty. Operand 30090 states and 32204 transitions. [2021-12-17 04:25:00,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2021-12-17 04:25:00,090 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:25:00,090 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, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 04:25:00,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-17 04:25:00,091 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:25:00,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:25:00,091 INFO L85 PathProgramCache]: Analyzing trace with hash 231030808, now seen corresponding path program 1 times [2021-12-17 04:25:00,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:25:00,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569358941] [2021-12-17 04:25:00,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:25:00,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:25:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:25:00,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 1230 proven. 189 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2021-12-17 04:25:00,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:25:00,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569358941] [2021-12-17 04:25:00,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569358941] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:25:00,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612787894] [2021-12-17 04:25:00,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:25:00,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:25:00,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:25:00,355 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:25:00,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-17 04:25:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:25:00,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:25:00,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:25:01,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 1327 proven. 0 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2021-12-17 04:25:01,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:25:01,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612787894] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:25:01,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:25:01,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-12-17 04:25:01,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937999844] [2021-12-17 04:25:01,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:25:01,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:25:01,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:25:01,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:25:01,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 04:25:01,336 INFO L87 Difference]: Start difference. First operand 30090 states and 32204 transitions. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:01,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:25:01,925 INFO L93 Difference]: Finished difference Result 58340 states and 62478 transitions. [2021-12-17 04:25:01,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:25:01,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 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 744 [2021-12-17 04:25:01,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:25:01,957 INFO L225 Difference]: With dead ends: 58340 [2021-12-17 04:25:01,957 INFO L226 Difference]: Without dead ends: 30094 [2021-12-17 04:25:01,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 751 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 04:25:01,975 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 67 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:25:01,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 314 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:25:01,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30094 states. [2021-12-17 04:25:02,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30094 to 30090. [2021-12-17 04:25:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30090 states, 30089 states have (on average 1.0684635581109376) internal successors, (32149), 30089 states have internal predecessors, (32149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:02,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30090 states to 30090 states and 32149 transitions. [2021-12-17 04:25:02,284 INFO L78 Accepts]: Start accepts. Automaton has 30090 states and 32149 transitions. Word has length 744 [2021-12-17 04:25:02,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:25:02,285 INFO L470 AbstractCegarLoop]: Abstraction has 30090 states and 32149 transitions. [2021-12-17 04:25:02,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:02,285 INFO L276 IsEmpty]: Start isEmpty. Operand 30090 states and 32149 transitions. [2021-12-17 04:25:02,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 758 [2021-12-17 04:25:02,305 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:25:02,306 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:25:02,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-17 04:25:02,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-12-17 04:25:02,508 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:25:02,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:25:02,508 INFO L85 PathProgramCache]: Analyzing trace with hash 965969879, now seen corresponding path program 1 times [2021-12-17 04:25:02,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:25:02,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133196509] [2021-12-17 04:25:02,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:25:02,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:25:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:25:02,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1627 backedges. 1123 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2021-12-17 04:25:02,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:25:02,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133196509] [2021-12-17 04:25:02,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133196509] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:25:02,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:25:02,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:25:02,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065732545] [2021-12-17 04:25:02,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:25:02,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:25:02,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:25:02,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:25:02,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:25:02,710 INFO L87 Difference]: Start difference. First operand 30090 states and 32149 transitions. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:03,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:25:03,329 INFO L93 Difference]: Finished difference Result 60921 states and 65026 transitions. [2021-12-17 04:25:03,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:25:03,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 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 757 [2021-12-17 04:25:03,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:25:03,362 INFO L225 Difference]: With dead ends: 60921 [2021-12-17 04:25:03,362 INFO L226 Difference]: Without dead ends: 32675 [2021-12-17 04:25:03,380 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 [2021-12-17 04:25:03,380 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 145 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:25:03,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 60 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:25:03,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32675 states. [2021-12-17 04:25:03,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32675 to 29170. [2021-12-17 04:25:03,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29170 states, 29169 states have (on average 1.0669203606568618) internal successors, (31121), 29169 states have internal predecessors, (31121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29170 states to 29170 states and 31121 transitions. [2021-12-17 04:25:03,680 INFO L78 Accepts]: Start accepts. Automaton has 29170 states and 31121 transitions. Word has length 757 [2021-12-17 04:25:03,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:25:03,681 INFO L470 AbstractCegarLoop]: Abstraction has 29170 states and 31121 transitions. [2021-12-17 04:25:03,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 29170 states and 31121 transitions. [2021-12-17 04:25:03,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2021-12-17 04:25:03,700 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:25:03,700 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, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 04:25:03,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-17 04:25:03,701 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:25:03,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:25:03,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1592903774, now seen corresponding path program 1 times [2021-12-17 04:25:03,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:25:03,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800006649] [2021-12-17 04:25:03,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:25:03,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:25:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:25:03,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 1273 proven. 64 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2021-12-17 04:25:03,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:25:03,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800006649] [2021-12-17 04:25:03,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800006649] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:25:03,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791009480] [2021-12-17 04:25:03,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:25:03,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:25:03,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:25:03,879 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:25:03,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-17 04:25:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:25:04,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:25:04,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:25:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 1337 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2021-12-17 04:25:04,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:25:04,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791009480] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:25:04,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:25:04,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:25:04,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678910262] [2021-12-17 04:25:04,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:25:04,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:25:04,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:25:04,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:25:04,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:25:04,822 INFO L87 Difference]: Start difference. First operand 29170 states and 31121 transitions. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:05,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:25:05,476 INFO L93 Difference]: Finished difference Result 57801 states and 61593 transitions. [2021-12-17 04:25:05,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:25:05,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 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 760 [2021-12-17 04:25:05,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:25:05,510 INFO L225 Difference]: With dead ends: 57801 [2021-12-17 04:25:05,510 INFO L226 Difference]: Without dead ends: 30475 [2021-12-17 04:25:05,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 763 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:25:05,522 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 76 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:25:05,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 331 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:25:05,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30475 states. [2021-12-17 04:25:05,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30475 to 26592. [2021-12-17 04:25:05,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26592 states, 26591 states have (on average 1.0637433718175322) internal successors, (28286), 26591 states have internal predecessors, (28286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:05,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26592 states to 26592 states and 28286 transitions. [2021-12-17 04:25:05,802 INFO L78 Accepts]: Start accepts. Automaton has 26592 states and 28286 transitions. Word has length 760 [2021-12-17 04:25:05,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:25:05,802 INFO L470 AbstractCegarLoop]: Abstraction has 26592 states and 28286 transitions. [2021-12-17 04:25:05,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:05,802 INFO L276 IsEmpty]: Start isEmpty. Operand 26592 states and 28286 transitions. [2021-12-17 04:25:05,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2021-12-17 04:25:05,820 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:25:05,821 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, 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, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:25:05,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-17 04:25:06,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-12-17 04:25:06,026 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:25:06,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:25:06,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1986468816, now seen corresponding path program 1 times [2021-12-17 04:25:06,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:25:06,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30402345] [2021-12-17 04:25:06,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:25:06,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:25:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:25:06,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 1308 proven. 73 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-12-17 04:25:06,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:25:06,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30402345] [2021-12-17 04:25:06,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30402345] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:25:06,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379074115] [2021-12-17 04:25:06,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:25:06,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:25:06,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:25:06,218 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:25:06,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-17 04:25:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:25:06,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-17 04:25:06,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:25:08,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 965 proven. 496 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2021-12-17 04:25:08,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 04:25:12,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 965 proven. 496 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2021-12-17 04:25:12,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379074115] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 04:25:12,236 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 04:25:12,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 13 [2021-12-17 04:25:12,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025910229] [2021-12-17 04:25:12,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 04:25:12,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 04:25:12,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:25:12,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 04:25:12,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-12-17 04:25:12,238 INFO L87 Difference]: Start difference. First operand 26592 states and 28286 transitions. Second operand has 13 states, 13 states have (on average 98.53846153846153) internal successors, (1281), 13 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:17,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:25:17,423 INFO L93 Difference]: Finished difference Result 60244 states and 63982 transitions. [2021-12-17 04:25:17,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-17 04:25:17,424 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 98.53846153846153) internal successors, (1281), 13 states have internal predecessors, (1281), 0 states have call successors, (0), 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 833 [2021-12-17 04:25:17,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:25:17,462 INFO L225 Difference]: With dead ends: 60244 [2021-12-17 04:25:17,463 INFO L226 Difference]: Without dead ends: 34022 [2021-12-17 04:25:17,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1721 GetRequests, 1681 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=449, Invalid=1191, Unknown=0, NotChecked=0, Total=1640 [2021-12-17 04:25:17,482 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 4877 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 7466 mSolverCounterSat, 1429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4877 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 8895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1429 IncrementalHoareTripleChecker+Valid, 7466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:25:17,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4877 Valid, 193 Invalid, 8895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1429 Valid, 7466 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-17 04:25:17,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34022 states. [2021-12-17 04:25:17,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34022 to 13304. [2021-12-17 04:25:17,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13304 states, 13303 states have (on average 1.0629933097797488) internal successors, (14141), 13303 states have internal predecessors, (14141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:17,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13304 states to 13304 states and 14141 transitions. [2021-12-17 04:25:17,713 INFO L78 Accepts]: Start accepts. Automaton has 13304 states and 14141 transitions. Word has length 833 [2021-12-17 04:25:17,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:25:17,714 INFO L470 AbstractCegarLoop]: Abstraction has 13304 states and 14141 transitions. [2021-12-17 04:25:17,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 98.53846153846153) internal successors, (1281), 13 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:17,714 INFO L276 IsEmpty]: Start isEmpty. Operand 13304 states and 14141 transitions. [2021-12-17 04:25:17,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2021-12-17 04:25:17,724 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:25:17,724 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2021-12-17 04:25:17,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-17 04:25:17,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-12-17 04:25:17,932 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:25:17,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:25:17,932 INFO L85 PathProgramCache]: Analyzing trace with hash 390843941, now seen corresponding path program 1 times [2021-12-17 04:25:17,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:25:17,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913575432] [2021-12-17 04:25:17,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:25:17,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:25:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:25:18,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2425 backedges. 1874 proven. 0 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2021-12-17 04:25:18,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:25:18,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913575432] [2021-12-17 04:25:18,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913575432] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:25:18,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:25:18,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 04:25:18,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460673365] [2021-12-17 04:25:18,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:25:18,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:25:18,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:25:18,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:25:18,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:25:18,129 INFO L87 Difference]: Start difference. First operand 13304 states and 14141 transitions. Second operand has 4 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:18,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:25:18,926 INFO L93 Difference]: Finished difference Result 29560 states and 31376 transitions. [2021-12-17 04:25:18,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:25:18,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 0 states have call successors, (0), 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 889 [2021-12-17 04:25:18,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:25:18,943 INFO L225 Difference]: With dead ends: 29560 [2021-12-17 04:25:18,943 INFO L226 Difference]: Without dead ends: 16074 [2021-12-17 04:25:18,952 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 [2021-12-17 04:25:18,953 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 234 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:25:18,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 61 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:25:18,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16074 states. [2021-12-17 04:25:19,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16074 to 10728. [2021-12-17 04:25:19,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10728 states, 10727 states have (on average 1.0579845250302973) internal successors, (11349), 10727 states have internal predecessors, (11349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:19,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10728 states to 10728 states and 11349 transitions. [2021-12-17 04:25:19,087 INFO L78 Accepts]: Start accepts. Automaton has 10728 states and 11349 transitions. Word has length 889 [2021-12-17 04:25:19,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:25:19,088 INFO L470 AbstractCegarLoop]: Abstraction has 10728 states and 11349 transitions. [2021-12-17 04:25:19,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:19,088 INFO L276 IsEmpty]: Start isEmpty. Operand 10728 states and 11349 transitions. [2021-12-17 04:25:19,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 946 [2021-12-17 04:25:19,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:25:19,098 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:25:19,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-17 04:25:19,098 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:25:19,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:25:19,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1120596416, now seen corresponding path program 1 times [2021-12-17 04:25:19,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:25:19,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614786092] [2021-12-17 04:25:19,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:25:19,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:25:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:25:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2555 backedges. 1898 proven. 0 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2021-12-17 04:25:19,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:25:19,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614786092] [2021-12-17 04:25:19,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614786092] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:25:19,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:25:19,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 04:25:19,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884033526] [2021-12-17 04:25:19,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:25:19,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:25:19,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:25:19,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:25:19,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:25:19,381 INFO L87 Difference]: Start difference. First operand 10728 states and 11349 transitions. Second operand has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:19,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:25:19,979 INFO L93 Difference]: Finished difference Result 17199 states and 18139 transitions. [2021-12-17 04:25:19,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:25:19,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 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 945 [2021-12-17 04:25:19,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:25:19,980 INFO L225 Difference]: With dead ends: 17199 [2021-12-17 04:25:19,980 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 04:25:19,986 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 [2021-12-17 04:25:19,987 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 203 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:25:19,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 34 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:25:19,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 04:25:19,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 04:25:19,988 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) [2021-12-17 04:25:19,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 04:25:19,988 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 945 [2021-12-17 04:25:19,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:25:19,988 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 04:25:19,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:25:19,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 04:25:19,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 04:25:19,990 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 04:25:19,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-17 04:25:19,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 04:26:05,480 WARN L227 SmtUtils]: Spent 45.48s on a formula simplification. DAG size of input: 1192 DAG size of output: 1134 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-17 04:26:50,771 WARN L227 SmtUtils]: Spent 45.28s on a formula simplification. DAG size of input: 1192 DAG size of output: 1134 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-17 04:26:59,668 WARN L227 SmtUtils]: Spent 8.89s on a formula simplification. DAG size of input: 1134 DAG size of output: 195 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-12-17 04:27:08,302 WARN L227 SmtUtils]: Spent 8.63s on a formula simplification. DAG size of input: 1134 DAG size of output: 200 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,306 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,307 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,311 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,311 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,311 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,311 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,311 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,311 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,311 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,312 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,313 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,313 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse27 (<= ~a29~0 277)) (.cse43 (+ ~a23~0 599772))) (let ((.cse13 (<= ~a29~0 274)) (.cse4 (<= 0 .cse43)) (.cse22 (< 138 ~a23~0)) (.cse14 (<= 130 ~a29~0)) (.cse25 (or (<= ~a23~0 306) .cse27)) (.cse10 (= ~a4~0 1)) (.cse18 (< 140 ~a29~0)) (.cse41 (+ ~a23~0 43)) (.cse11 (<= ~a25~0 10)) (.cse38 (<= 306 ~a23~0)) (.cse37 (<= 261 ~a29~0)) (.cse17 (<= ~a25~0 9))) (let ((.cse31 (<= 312 ~a23~0)) (.cse32 (<= ~a29~0 220)) (.cse26 (or (and .cse37 .cse11 .cse38) (and .cse37 .cse17))) (.cse39 (<= ~a23~0 600000)) (.cse19 (= ~a25~0 13)) (.cse36 (<= ~a23~0 262)) (.cse21 (<= .cse41 0)) (.cse34 (<= .cse43 0)) (.cse1 (let ((.cse42 (mod ~a29~0 15))) (or (= 0 .cse42) (< 4 .cse42) (<= 0 ~a29~0)))) (.cse2 (or (not (= 4 |ULTIMATE.start_calculate_output_~input#1|)) (= 1 ~a4~0) .cse18)) (.cse8 (<= (+ ~a23~0 55) 0)) (.cse16 (or (and .cse13 .cse14 .cse4 .cse10) (and .cse22 .cse14 .cse25 .cse10))) (.cse24 (= ~a25~0 11)) (.cse9 (<= ~a23~0 211)) (.cse28 (= 13 ~a25~0)) (.cse29 (= 15 ~a8~0)) (.cse35 (<= ~a23~0 599997)) (.cse30 (= 1 ~a3~0)) (.cse40 (<= 10 ~a25~0)) (.cse23 (<= ~a23~0 312)) (.cse6 (<= ~a29~0 130)) (.cse33 (<= 0 (+ (div (+ ~a23~0 (- 600221)) 5) 370992))) (.cse12 (<= 12 ~a25~0)) (.cse0 (= 0 ~a4~0)) (.cse3 (= ~a25~0 12)) (.cse15 (or (< 0 .cse41) .cse18)) (.cse5 (= ~a3~0 1)) (.cse20 (< 245 ~a29~0)) (.cse7 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (not (= 3 |ULTIMATE.start_calculate_output_~input#1|)) .cse5 .cse6 .cse7 .cse8) (and .cse3 .cse9 .cse6 .cse10) (and .cse9 .cse11 .cse10) (and .cse12 .cse0 .cse13 .cse14 .cse3 (<= 256 ~a29~0) .cse15 .cse5 .cse7) (and .cse16 .cse5 (< 251148 ~a23~0) .cse17 .cse18 .cse7) (and .cse13 .cse19 .cse14 .cse9 .cse5 (or (<= ~a29~0 140) .cse20 .cse21) .cse7 .cse10) (and (or (and .cse22 .cse23 .cse24 .cse10) (and .cse22 .cse23 .cse3 .cse25 .cse10)) .cse5 .cse7) (and .cse26 .cse5 .cse27 .cse10 .cse7) (and .cse12 .cse0 .cse28 .cse13 .cse14 .cse4 .cse29 .cse20 .cse21 .cse30) (and .cse28 .cse31 .cse32 .cse29 .cse30 .cse10 .cse18) (and (or (and .cse33 .cse34 .cse5 .cse6 .cse17 .cse7) (and .cse33 .cse0 .cse5 .cse6 .cse17 .cse7)) .cse8) (and (or (and .cse32 .cse24 .cse10) (and .cse31 .cse32 .cse3 .cse10)) .cse35 .cse5 .cse18 .cse7) (and .cse22 .cse36 .cse19 .cse5 .cse6 .cse7 .cse10) (and (or (and .cse37 .cse3 .cse25 .cse5 .cse38 .cse10 .cse7) (and (or (and .cse13 .cse3 .cse5 .cse38 .cse10) (and .cse24 .cse5 .cse10)) .cse20 .cse7)) .cse39) (and .cse23 .cse11 .cse5 .cse10 .cse7) (and .cse26 .cse5 .cse10 .cse7 .cse39) (and .cse22 .cse37 .cse19 .cse36 .cse5 .cse10 .cse7) (and (or (and .cse0 .cse37 (<= ~a29~0 275) .cse3) (and .cse0 (<= 10250 ~a29~0) .cse21 .cse17)) .cse5 .cse7) (and .cse0 .cse33 .cse13 .cse3 .cse5 .cse18 .cse7 .cse8) (and (or (and (or (and .cse0 .cse24 .cse6) (and .cse33 (or (and .cse34 .cse24 .cse6) (and .cse0 .cse34 .cse11 .cse6)))) .cse5 .cse7) (and .cse0 .cse1 .cse2 .cse11 .cse5 (<= 0 (+ ~a23~0 599908)) .cse6 .cse7)) .cse8) (and .cse16 .cse5 .cse20 .cse17 .cse7) (and .cse14 .cse24 .cse9 .cse10) (and .cse40 .cse35 .cse11 .cse5 .cse10 .cse7) (and .cse22 .cse28 .cse13 .cse23 .cse29 .cse30 .cse10 .cse18) (and .cse28 .cse29 .cse35 .cse38 .cse30 .cse10) (and .cse40 .cse13 .cse11 .cse5 .cse10 .cse18 .cse7) (and .cse23 .cse6 .cse10 .cse17) (and .cse33 .cse12 .cse0 .cse13 .cse14 .cse3 .cse15 .cse5 .cse20 .cse7))))) [2021-12-17 04:27:08,313 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,313 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-12-17 04:27:08,313 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-12-17 04:27:08,313 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,313 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,314 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,314 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,314 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,314 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,314 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-12-17 04:27:08,314 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-12-17 04:27:08,314 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-12-17 04:27:08,314 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-12-17 04:27:08,314 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,314 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,314 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,314 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,315 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,315 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,315 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,315 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-12-17 04:27:08,315 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-12-17 04:27:08,315 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-12-17 04:27:08,315 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,315 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,315 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,315 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,315 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,316 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,316 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,316 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,316 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,316 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-12-17 04:27:08,316 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-12-17 04:27:08,316 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-12-17 04:27:08,316 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,316 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse41 (+ ~a23~0 599772))) (let ((.cse13 (<= ~a29~0 274)) (.cse4 (<= 0 .cse41)) (.cse22 (< 138 ~a23~0)) (.cse14 (<= 130 ~a29~0)) (.cse25 (or (<= ~a23~0 306) (<= ~a29~0 277))) (.cse10 (= ~a4~0 1)) (.cse18 (< 140 ~a29~0)) (.cse39 (+ ~a23~0 43))) (let ((.cse29 (<= 312 ~a23~0)) (.cse30 (<= ~a29~0 220)) (.cse37 (<= ~a23~0 600000)) (.cse19 (= ~a25~0 13)) (.cse34 (<= ~a23~0 262)) (.cse35 (<= 261 ~a29~0)) (.cse21 (<= .cse39 0)) (.cse32 (<= .cse41 0)) (.cse1 (let ((.cse40 (mod ~a29~0 15))) (or (= 0 .cse40) (< 4 .cse40) (<= 0 ~a29~0)))) (.cse2 (or (not (= 4 |ULTIMATE.start_calculate_output_~input#1|)) (= 1 ~a4~0) .cse18)) (.cse8 (<= (+ ~a23~0 55) 0)) (.cse16 (or (and .cse13 .cse14 .cse4 .cse10) (and .cse22 .cse14 .cse25 .cse10))) (.cse24 (= ~a25~0 11)) (.cse9 (<= ~a23~0 211)) (.cse38 (<= 10 ~a25~0)) (.cse11 (<= ~a25~0 10)) (.cse26 (= 13 ~a25~0)) (.cse27 (= 15 ~a8~0)) (.cse33 (<= ~a23~0 599997)) (.cse36 (<= 306 ~a23~0)) (.cse28 (= 1 ~a3~0)) (.cse23 (<= ~a23~0 312)) (.cse6 (<= ~a29~0 130)) (.cse17 (<= ~a25~0 9)) (.cse31 (<= 0 (+ (div (+ ~a23~0 (- 600221)) 5) 370992))) (.cse12 (<= 12 ~a25~0)) (.cse0 (= 0 ~a4~0)) (.cse3 (= ~a25~0 12)) (.cse15 (or (< 0 .cse39) .cse18)) (.cse5 (= ~a3~0 1)) (.cse20 (< 245 ~a29~0)) (.cse7 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (not (= 3 |ULTIMATE.start_calculate_output_~input#1|)) .cse5 .cse6 .cse7 .cse8) (and .cse3 .cse9 .cse6 .cse10) (and .cse9 .cse11 .cse10) (and .cse12 .cse0 .cse13 .cse14 .cse3 (<= 256 ~a29~0) .cse15 .cse5 .cse7) (and .cse16 .cse5 (< 251148 ~a23~0) .cse17 .cse18 .cse7) (and .cse13 .cse19 .cse14 .cse9 .cse5 (or (<= ~a29~0 140) .cse20 .cse21) .cse7 .cse10) (and (or (and .cse22 .cse23 .cse24 .cse10) (and .cse22 .cse23 .cse3 .cse25 .cse10)) .cse5 .cse7) (and .cse12 .cse0 .cse26 .cse13 .cse14 .cse4 .cse27 .cse20 .cse21 .cse28) (and .cse26 .cse29 .cse30 .cse27 .cse28 .cse10 .cse18) (and (or (and .cse31 .cse32 .cse5 .cse6 .cse17 .cse7) (and .cse31 .cse0 .cse5 .cse6 .cse17 .cse7)) .cse8) (and (or (and .cse30 .cse24 .cse10) (and .cse29 .cse30 .cse3 .cse10)) .cse33 .cse5 .cse18 .cse7) (and .cse22 .cse34 .cse19 .cse5 .cse6 .cse7 .cse10) (and (or (and .cse35 .cse3 .cse25 .cse5 .cse36 .cse10 .cse7) (and (or (and .cse13 .cse3 .cse5 .cse36 .cse10) (and .cse24 .cse5 .cse10)) .cse20 .cse7)) .cse37) (and .cse35 .cse11 .cse5 .cse10 .cse7 .cse37) (and .cse23 .cse11 .cse5 .cse10 .cse7) (and .cse22 .cse35 .cse19 .cse34 .cse5 .cse10 .cse7) (and (or (and .cse0 .cse35 (<= ~a29~0 275) .cse3) (and .cse0 (<= 10250 ~a29~0) .cse21 .cse17)) .cse5 .cse7) (and .cse0 .cse31 .cse13 .cse3 .cse5 .cse18 .cse7 .cse8) (and (or (and (or (and .cse0 .cse24 .cse6) (and .cse31 (or (and .cse32 .cse24 .cse6) (and .cse0 .cse32 .cse11 .cse6)))) .cse5 .cse7) (and .cse0 .cse1 .cse2 .cse11 .cse5 (<= 0 (+ ~a23~0 599908)) .cse6 .cse7)) .cse8) (and .cse16 .cse5 .cse20 .cse17 .cse7) (and .cse22 .cse38 .cse14 .cse25 .cse11 .cse5 .cse10 .cse18 .cse7) (and .cse14 .cse24 .cse9 .cse10) (and .cse38 .cse33 .cse11 .cse5 .cse10 .cse7) (and .cse22 .cse26 .cse13 .cse23 .cse27 .cse28 .cse10 .cse18) (and .cse26 .cse27 .cse33 .cse36 .cse28 .cse10) (and .cse23 .cse6 .cse10 .cse17) (and .cse31 .cse12 .cse0 .cse13 .cse14 .cse3 .cse15 .cse5 .cse20 .cse7))))) [2021-12-17 04:27:08,317 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,317 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,317 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,317 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,317 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,317 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,317 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,317 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,317 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-12-17 04:27:08,317 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-12-17 04:27:08,317 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-12-17 04:27:08,318 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-12-17 04:27:08,318 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-12-17 04:27:08,318 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-12-17 04:27:08,318 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-12-17 04:27:08,318 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,318 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,318 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,318 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,318 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,318 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,318 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,319 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,319 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,319 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,319 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 04:27:08,319 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-12-17 04:27:08,319 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-12-17 04:27:08,319 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-12-17 04:27:08,319 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-12-17 04:27:08,319 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,319 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,319 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,319 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,320 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,320 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-12-17 04:27:08,320 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-12-17 04:27:08,320 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-12-17 04:27:08,320 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,320 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,320 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,320 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,320 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-12-17 04:27:08,320 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-12-17 04:27:08,320 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,321 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,321 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,321 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,321 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,321 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,321 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-12-17 04:27:08,321 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-12-17 04:27:08,321 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,321 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,321 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-12-17 04:27:08,322 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-12-17 04:27:08,322 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-12-17 04:27:08,322 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 04:27:08,322 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2021-12-17 04:27:08,322 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,322 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,322 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,322 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,322 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,322 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,322 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,323 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-12-17 04:27:08,323 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-12-17 04:27:08,323 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-12-17 04:27:08,323 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-12-17 04:27:08,323 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-12-17 04:27:08,323 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-12-17 04:27:08,323 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-12-17 04:27:08,323 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,323 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,323 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-12-17 04:27:08,323 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-12-17 04:27:08,324 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,324 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,324 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,324 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,324 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,324 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-12-17 04:27:08,324 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-12-17 04:27:08,324 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-12-17 04:27:08,324 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,324 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,324 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,325 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,325 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,325 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,325 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-12-17 04:27:08,325 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-12-17 04:27:08,325 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-17 04:27:08,325 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,325 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,325 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,325 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,325 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,326 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,326 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,326 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,326 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-12-17 04:27:08,326 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-12-17 04:27:08,326 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-12-17 04:27:08,326 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,326 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,326 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,326 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,326 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,327 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,327 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,327 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,327 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,327 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,327 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,327 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-12-17 04:27:08,327 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-12-17 04:27:08,327 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-17 04:27:08,327 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-12-17 04:27:08,328 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-12-17 04:27:08,328 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,328 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,328 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,328 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,328 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,328 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,328 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,328 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-12-17 04:27:08,328 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-12-17 04:27:08,328 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-17 04:27:08,329 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,329 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,329 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,329 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-12-17 04:27:08,329 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-12-17 04:27:08,329 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,329 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,329 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,329 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,329 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,329 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-12-17 04:27:08,330 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-12-17 04:27:08,330 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,330 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,330 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-12-17 04:27:08,330 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-12-17 04:27:08,330 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,330 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 04:27:08,330 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,330 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,330 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,330 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,331 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,331 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-12-17 04:27:08,331 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-12-17 04:27:08,331 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-12-17 04:27:08,331 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-12-17 04:27:08,331 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,331 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,331 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,331 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,331 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,331 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,332 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,332 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,332 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-12-17 04:27:08,332 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-12-17 04:27:08,332 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-12-17 04:27:08,332 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-12-17 04:27:08,332 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-12-17 04:27:08,332 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-12-17 04:27:08,332 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,332 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,333 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,333 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,333 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,333 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,333 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,333 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-17 04:27:08,333 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-12-17 04:27:08,333 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 04:27:08,333 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,333 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,333 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,334 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,334 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,334 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,334 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-12-17 04:27:08,334 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-12-17 04:27:08,334 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,334 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,334 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,334 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,334 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,334 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,334 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,335 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-12-17 04:27:08,335 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:27:08,335 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,335 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,335 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-12-17 04:27:08,335 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-12-17 04:27:08,335 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-12-17 04:27:08,335 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-12-17 04:27:08,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:27:08,338 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 04:27:08,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 04:27:08 BoogieIcfgContainer [2021-12-17 04:27:08,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 04:27:08,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 04:27:08,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 04:27:08,363 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 04:27:08,364 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:24:07" (3/4) ... [2021-12-17 04:27:08,365 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 04:27:08,382 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 04:27:08,383 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 04:27:08,384 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 04:27:08,385 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 04:27:08,470 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 04:27:08,470 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 04:27:08,470 INFO L158 Benchmark]: Toolchain (without parser) took 182460.10ms. Allocated memory was 96.5MB in the beginning and 4.2GB in the end (delta: 4.1GB). Free memory was 65.6MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 629.3MB. Max. memory is 16.1GB. [2021-12-17 04:27:08,471 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 53.1MB in the beginning and 53.1MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 04:27:08,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.91ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 65.4MB in the beginning and 85.5MB in the end (delta: -20.2MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2021-12-17 04:27:08,472 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.08ms. Allocated memory is still 119.5MB. Free memory was 85.5MB in the beginning and 68.1MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-17 04:27:08,473 INFO L158 Benchmark]: Boogie Preprocessor took 91.68ms. Allocated memory is still 119.5MB. Free memory was 68.1MB in the beginning and 58.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 04:27:08,474 INFO L158 Benchmark]: RCFGBuilder took 1034.73ms. Allocated memory is still 119.5MB. Free memory was 58.5MB in the beginning and 58.6MB in the end (delta: -174.2kB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2021-12-17 04:27:08,477 INFO L158 Benchmark]: TraceAbstraction took 180621.06ms. Allocated memory was 119.5MB in the beginning and 4.2GB in the end (delta: 4.1GB). Free memory was 57.9MB in the beginning and 3.6GB in the end (delta: -3.6GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2021-12-17 04:27:08,477 INFO L158 Benchmark]: Witness Printer took 106.57ms. Allocated memory is still 4.2GB. Free memory was 3.6GB in the beginning and 3.6GB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-17 04:27:08,479 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 96.5MB. Free memory was 53.1MB in the beginning and 53.1MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.91ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 65.4MB in the beginning and 85.5MB in the end (delta: -20.2MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.08ms. Allocated memory is still 119.5MB. Free memory was 85.5MB in the beginning and 68.1MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.68ms. Allocated memory is still 119.5MB. Free memory was 68.1MB in the beginning and 58.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1034.73ms. Allocated memory is still 119.5MB. Free memory was 58.5MB in the beginning and 58.6MB in the end (delta: -174.2kB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * TraceAbstraction took 180621.06ms. Allocated memory was 119.5MB in the beginning and 4.2GB in the end (delta: 4.1GB). Free memory was 57.9MB in the beginning and 3.6GB in the end (delta: -3.6GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. * Witness Printer took 106.57ms. Allocated memory is still 4.2GB. Free memory was 3.6GB in the beginning and 3.6GB in the end (delta: 25.4MB). 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: 160]: 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: 180.5s, OverallIterations: 30, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 35.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 108.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18184 SdHoareTripleChecker+Valid, 29.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18184 mSDsluCounter, 5998 SdHoareTripleChecker+Invalid, 23.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 366 IncrementalHoareTripleChecker+Unchecked, 1185 mSDsCounter, 6776 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40151 IncrementalHoareTripleChecker+Invalid, 47293 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6776 mSolverCounterUnsat, 4813 mSDtfsCounter, 40151 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8003 GetRequests, 7831 SyntacticMatches, 3 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1054 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32305occurred in iteration=15, InterpolantAutomatonStates: 178, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.8s AutomataMinimizationTime, 30 MinimizatonAttempts, 91323 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 123 NumberOfFragments, 1878 HoareAnnotationTreeSize, 3 FomulaSimplifications, 724390 FormulaSimplificationTreeSizeReduction, 90.8s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1242125 FormulaSimplificationTreeSizeReductionInter, 17.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 23.5s InterpolantComputationTime, 17596 NumberOfCodeBlocks, 17596 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 19741 ConstructedInterpolants, 46 QuantifiedInterpolants, 89380 SizeOfPredicates, 22 NumberOfNonLiveVariables, 7595 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 46 InterpolantComputations, 26 PerfectInterpolantSequences, 28370/32435 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: ((((((((((((((((((((((((((((((((((0 == a4 && ((0 == a29 % 15 || 4 < a29 % 15) || 0 <= a29)) && ((!(4 == input) || 1 == a4) || 140 < a29)) && a25 == 12) && 0 <= a23 + 599772) && !(3 == input)) && a3 == 1) && a29 <= 130) && a8 == 15) && a23 + 55 <= 0) || (((a25 == 12 && a23 <= 211) && a29 <= 130) && a4 == 1)) || ((a23 <= 211 && a25 <= 10) && a4 == 1)) || ((((((((12 <= a25 && 0 == a4) && a29 <= 274) && 130 <= a29) && a25 == 12) && 256 <= a29) && (0 < a23 + 43 || 140 < a29)) && a3 == 1) && a8 == 15)) || (((((((((a29 <= 274 && 130 <= a29) && 0 <= a23 + 599772) && a4 == 1) || (((138 < a23 && 130 <= a29) && (a23 <= 306 || a29 <= 277)) && a4 == 1)) && a3 == 1) && 251148 < a23) && a25 <= 9) && 140 < a29) && a8 == 15)) || (((((((a29 <= 274 && a25 == 13) && 130 <= a29) && a23 <= 211) && a3 == 1) && ((a29 <= 140 || 245 < a29) || a23 + 43 <= 0)) && a8 == 15) && a4 == 1)) || ((((((138 < a23 && a23 <= 312) && a25 == 11) && a4 == 1) || ((((138 < a23 && a23 <= 312) && a25 == 12) && (a23 <= 306 || a29 <= 277)) && a4 == 1)) && a3 == 1) && a8 == 15)) || (((((((((12 <= a25 && 0 == a4) && 13 == a25) && a29 <= 274) && 130 <= a29) && 0 <= a23 + 599772) && 15 == a8) && 245 < a29) && a23 + 43 <= 0) && 1 == a3)) || ((((((13 == a25 && 312 <= a23) && a29 <= 220) && 15 == a8) && 1 == a3) && a4 == 1) && 140 < a29)) || (((((((0 <= (a23 + -600221) / 5 + 370992 && a23 + 599772 <= 0) && a3 == 1) && a29 <= 130) && a25 <= 9) && a8 == 15) || (((((0 <= (a23 + -600221) / 5 + 370992 && 0 == a4) && a3 == 1) && a29 <= 130) && a25 <= 9) && a8 == 15)) && a23 + 55 <= 0)) || (((((((a29 <= 220 && a25 == 11) && a4 == 1) || (((312 <= a23 && a29 <= 220) && a25 == 12) && a4 == 1)) && a23 <= 599997) && a3 == 1) && 140 < a29) && a8 == 15)) || ((((((138 < a23 && a23 <= 262) && a25 == 13) && a3 == 1) && a29 <= 130) && a8 == 15) && a4 == 1)) || ((((((((261 <= a29 && a25 == 12) && (a23 <= 306 || a29 <= 277)) && a3 == 1) && 306 <= a23) && a4 == 1) && a8 == 15) || (((((((a29 <= 274 && a25 == 12) && a3 == 1) && 306 <= a23) && a4 == 1) || ((a25 == 11 && a3 == 1) && a4 == 1)) && 245 < a29) && a8 == 15)) && a23 <= 600000)) || (((((261 <= a29 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) && a23 <= 600000)) || ((((a23 <= 312 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((138 < a23 && 261 <= a29) && a25 == 13) && a23 <= 262) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((0 == a4 && 261 <= a29) && a29 <= 275) && a25 == 12) || (((0 == a4 && 10250 <= a29) && a23 + 43 <= 0) && a25 <= 9)) && a3 == 1) && a8 == 15)) || (((((((0 == a4 && 0 <= (a23 + -600221) / 5 + 370992) && a29 <= 274) && a25 == 12) && a3 == 1) && 140 < a29) && a8 == 15) && a23 + 55 <= 0)) || (((((((0 == a4 && a25 == 11) && a29 <= 130) || (0 <= (a23 + -600221) / 5 + 370992 && (((a23 + 599772 <= 0 && a25 == 11) && a29 <= 130) || (((0 == a4 && a23 + 599772 <= 0) && a25 <= 10) && a29 <= 130)))) && a3 == 1) && a8 == 15) || (((((((0 == a4 && ((0 == a29 % 15 || 4 < a29 % 15) || 0 <= a29)) && ((!(4 == input) || 1 == a4) || 140 < a29)) && a25 <= 10) && a3 == 1) && 0 <= a23 + 599908) && a29 <= 130) && a8 == 15)) && a23 + 55 <= 0)) || ((((((((a29 <= 274 && 130 <= a29) && 0 <= a23 + 599772) && a4 == 1) || (((138 < a23 && 130 <= a29) && (a23 <= 306 || a29 <= 277)) && a4 == 1)) && a3 == 1) && 245 < a29) && a25 <= 9) && a8 == 15)) || ((((((((138 < a23 && 10 <= a25) && 130 <= a29) && (a23 <= 306 || a29 <= 277)) && a25 <= 10) && a3 == 1) && a4 == 1) && 140 < a29) && a8 == 15)) || (((130 <= a29 && a25 == 11) && a23 <= 211) && a4 == 1)) || (((((10 <= a25 && a23 <= 599997) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((((138 < a23 && 13 == a25) && a29 <= 274) && a23 <= 312) && 15 == a8) && 1 == a3) && a4 == 1) && 140 < a29)) || (((((13 == a25 && 15 == a8) && a23 <= 599997) && 306 <= a23) && 1 == a3) && a4 == 1)) || (((a23 <= 312 && a29 <= 130) && a4 == 1) && a25 <= 9)) || (((((((((0 <= (a23 + -600221) / 5 + 370992 && 12 <= a25) && 0 == a4) && a29 <= 274) && 130 <= a29) && a25 == 12) && (0 < a23 + 43 || 140 < a29)) && a3 == 1) && 245 < a29) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((0 == a4 && ((0 == a29 % 15 || 4 < a29 % 15) || 0 <= a29)) && ((!(4 == input) || 1 == a4) || 140 < a29)) && a25 == 12) && 0 <= a23 + 599772) && !(3 == input)) && a3 == 1) && a29 <= 130) && a8 == 15) && a23 + 55 <= 0) || (((a25 == 12 && a23 <= 211) && a29 <= 130) && a4 == 1)) || ((a23 <= 211 && a25 <= 10) && a4 == 1)) || ((((((((12 <= a25 && 0 == a4) && a29 <= 274) && 130 <= a29) && a25 == 12) && 256 <= a29) && (0 < a23 + 43 || 140 < a29)) && a3 == 1) && a8 == 15)) || (((((((((a29 <= 274 && 130 <= a29) && 0 <= a23 + 599772) && a4 == 1) || (((138 < a23 && 130 <= a29) && (a23 <= 306 || a29 <= 277)) && a4 == 1)) && a3 == 1) && 251148 < a23) && a25 <= 9) && 140 < a29) && a8 == 15)) || (((((((a29 <= 274 && a25 == 13) && 130 <= a29) && a23 <= 211) && a3 == 1) && ((a29 <= 140 || 245 < a29) || a23 + 43 <= 0)) && a8 == 15) && a4 == 1)) || ((((((138 < a23 && a23 <= 312) && a25 == 11) && a4 == 1) || ((((138 < a23 && a23 <= 312) && a25 == 12) && (a23 <= 306 || a29 <= 277)) && a4 == 1)) && a3 == 1) && a8 == 15)) || (((((((261 <= a29 && a25 <= 10) && 306 <= a23) || (261 <= a29 && a25 <= 9)) && a3 == 1) && a29 <= 277) && a4 == 1) && a8 == 15)) || (((((((((12 <= a25 && 0 == a4) && 13 == a25) && a29 <= 274) && 130 <= a29) && 0 <= a23 + 599772) && 15 == a8) && 245 < a29) && a23 + 43 <= 0) && 1 == a3)) || ((((((13 == a25 && 312 <= a23) && a29 <= 220) && 15 == a8) && 1 == a3) && a4 == 1) && 140 < a29)) || (((((((0 <= (a23 + -600221) / 5 + 370992 && a23 + 599772 <= 0) && a3 == 1) && a29 <= 130) && a25 <= 9) && a8 == 15) || (((((0 <= (a23 + -600221) / 5 + 370992 && 0 == a4) && a3 == 1) && a29 <= 130) && a25 <= 9) && a8 == 15)) && a23 + 55 <= 0)) || (((((((a29 <= 220 && a25 == 11) && a4 == 1) || (((312 <= a23 && a29 <= 220) && a25 == 12) && a4 == 1)) && a23 <= 599997) && a3 == 1) && 140 < a29) && a8 == 15)) || ((((((138 < a23 && a23 <= 262) && a25 == 13) && a3 == 1) && a29 <= 130) && a8 == 15) && a4 == 1)) || ((((((((261 <= a29 && a25 == 12) && (a23 <= 306 || a29 <= 277)) && a3 == 1) && 306 <= a23) && a4 == 1) && a8 == 15) || (((((((a29 <= 274 && a25 == 12) && a3 == 1) && 306 <= a23) && a4 == 1) || ((a25 == 11 && a3 == 1) && a4 == 1)) && 245 < a29) && a8 == 15)) && a23 <= 600000)) || ((((a23 <= 312 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((((261 <= a29 && a25 <= 10) && 306 <= a23) || (261 <= a29 && a25 <= 9)) && a3 == 1) && a4 == 1) && a8 == 15) && a23 <= 600000)) || ((((((138 < a23 && 261 <= a29) && a25 == 13) && a23 <= 262) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((0 == a4 && 261 <= a29) && a29 <= 275) && a25 == 12) || (((0 == a4 && 10250 <= a29) && a23 + 43 <= 0) && a25 <= 9)) && a3 == 1) && a8 == 15)) || (((((((0 == a4 && 0 <= (a23 + -600221) / 5 + 370992) && a29 <= 274) && a25 == 12) && a3 == 1) && 140 < a29) && a8 == 15) && a23 + 55 <= 0)) || (((((((0 == a4 && a25 == 11) && a29 <= 130) || (0 <= (a23 + -600221) / 5 + 370992 && (((a23 + 599772 <= 0 && a25 == 11) && a29 <= 130) || (((0 == a4 && a23 + 599772 <= 0) && a25 <= 10) && a29 <= 130)))) && a3 == 1) && a8 == 15) || (((((((0 == a4 && ((0 == a29 % 15 || 4 < a29 % 15) || 0 <= a29)) && ((!(4 == input) || 1 == a4) || 140 < a29)) && a25 <= 10) && a3 == 1) && 0 <= a23 + 599908) && a29 <= 130) && a8 == 15)) && a23 + 55 <= 0)) || ((((((((a29 <= 274 && 130 <= a29) && 0 <= a23 + 599772) && a4 == 1) || (((138 < a23 && 130 <= a29) && (a23 <= 306 || a29 <= 277)) && a4 == 1)) && a3 == 1) && 245 < a29) && a25 <= 9) && a8 == 15)) || (((130 <= a29 && a25 == 11) && a23 <= 211) && a4 == 1)) || (((((10 <= a25 && a23 <= 599997) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((((138 < a23 && 13 == a25) && a29 <= 274) && a23 <= 312) && 15 == a8) && 1 == a3) && a4 == 1) && 140 < a29)) || (((((13 == a25 && 15 == a8) && a23 <= 599997) && 306 <= a23) && 1 == a3) && a4 == 1)) || ((((((10 <= a25 && a29 <= 274) && a25 <= 10) && a3 == 1) && a4 == 1) && 140 < a29) && a8 == 15)) || (((a23 <= 312 && a29 <= 130) && a4 == 1) && a25 <= 9)) || (((((((((0 <= (a23 + -600221) / 5 + 370992 && 12 <= a25) && 0 == a4) && a29 <= 274) && 130 <= a29) && a25 == 12) && (0 < a23 + 43 || 140 < a29)) && a3 == 1) && 245 < a29) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-17 04:27:08,510 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