./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label19.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 5b769442af2d950aaf4b68e467259bd2e1d98c5d8ca4dcdd5a740ef956112baf --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 09:47:17,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 09:47:17,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 09:47:17,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 09:47:17,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 09:47:17,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 09:47:17,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 09:47:17,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 09:47:17,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 09:47:17,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 09:47:17,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 09:47:17,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 09:47:17,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 09:47:17,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 09:47:17,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 09:47:17,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 09:47:17,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 09:47:17,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 09:47:17,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 09:47:17,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 09:47:17,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 09:47:17,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 09:47:17,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 09:47:17,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 09:47:17,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 09:47:17,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 09:47:17,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 09:47:17,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 09:47:17,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 09:47:17,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 09:47:17,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 09:47:17,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 09:47:17,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 09:47:17,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 09:47:17,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 09:47:17,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 09:47:17,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 09:47:17,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 09:47:17,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 09:47:17,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 09:47:17,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 09:47:17,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 09:47:17,415 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 09:47:17,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 09:47:17,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 09:47:17,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 09:47:17,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 09:47:17,422 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 09:47:17,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 09:47:17,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 09:47:17,422 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 09:47:17,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 09:47:17,423 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 09:47:17,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 09:47:17,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 09:47:17,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 09:47:17,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 09:47:17,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 09:47:17,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 09:47:17,424 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 09:47:17,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 09:47:17,424 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 09:47:17,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 09:47:17,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 09:47:17,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 09:47:17,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 09:47:17,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:47:17,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 09:47:17,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 09:47:17,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 09:47:17,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 09:47:17,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 09:47:17,426 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 09:47:17,426 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 09:47:17,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 09:47:17,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 09:47:17,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b769442af2d950aaf4b68e467259bd2e1d98c5d8ca4dcdd5a740ef956112baf [2021-12-15 09:47:17,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 09:47:17,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 09:47:17,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 09:47:17,647 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 09:47:17,647 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 09:47:17,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label19.c [2021-12-15 09:47:17,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc406441/cbc0f3a2dc8e47dda0e66959c1184df8/FLAG58b006a6c [2021-12-15 09:47:18,198 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 09:47:18,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label19.c [2021-12-15 09:47:18,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc406441/cbc0f3a2dc8e47dda0e66959c1184df8/FLAG58b006a6c [2021-12-15 09:47:18,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc406441/cbc0f3a2dc8e47dda0e66959c1184df8 [2021-12-15 09:47:18,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 09:47:18,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 09:47:18,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 09:47:18,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 09:47:18,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 09:47:18,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:47:18" (1/1) ... [2021-12-15 09:47:18,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0208c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:18, skipping insertion in model container [2021-12-15 09:47:18,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:47:18" (1/1) ... [2021-12-15 09:47:18,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 09:47:18,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 09:47:18,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label19.c[6323,6336] [2021-12-15 09:47:19,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:47:19,081 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 09:47:19,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label19.c[6323,6336] [2021-12-15 09:47:19,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:47:19,155 INFO L208 MainTranslator]: Completed translation [2021-12-15 09:47:19,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:19 WrapperNode [2021-12-15 09:47:19,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 09:47:19,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 09:47:19,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 09:47:19,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 09:47:19,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:19" (1/1) ... [2021-12-15 09:47:19,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:19" (1/1) ... [2021-12-15 09:47:19,248 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-12-15 09:47:19,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 09:47:19,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 09:47:19,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 09:47:19,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 09:47:19,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:19" (1/1) ... [2021-12-15 09:47:19,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:19" (1/1) ... [2021-12-15 09:47:19,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:19" (1/1) ... [2021-12-15 09:47:19,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:19" (1/1) ... [2021-12-15 09:47:19,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:19" (1/1) ... [2021-12-15 09:47:19,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:19" (1/1) ... [2021-12-15 09:47:19,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:19" (1/1) ... [2021-12-15 09:47:19,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 09:47:19,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 09:47:19,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 09:47:19,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 09:47:19,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:19" (1/1) ... [2021-12-15 09:47:19,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:47:19,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:47:19,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 09:47:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 09:47:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 09:47:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 09:47:19,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 09:47:19,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 09:47:19,436 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 09:47:19,437 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 09:47:20,299 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 09:47:20,305 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 09:47:20,306 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 09:47:20,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:47:20 BoogieIcfgContainer [2021-12-15 09:47:20,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 09:47:20,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 09:47:20,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 09:47:20,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 09:47:20,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:47:18" (1/3) ... [2021-12-15 09:47:20,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b25525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:47:20, skipping insertion in model container [2021-12-15 09:47:20,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:47:19" (2/3) ... [2021-12-15 09:47:20,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b25525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:47:20, skipping insertion in model container [2021-12-15 09:47:20,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:47:20" (3/3) ... [2021-12-15 09:47:20,313 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label19.c [2021-12-15 09:47:20,317 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 09:47:20,317 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 09:47:20,371 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 09:47:20,376 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 09:47:20,376 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 09:47:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:20,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-15 09:47:20,395 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:20,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:20,396 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:20,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:20,399 INFO L85 PathProgramCache]: Analyzing trace with hash 531730986, now seen corresponding path program 1 times [2021-12-15 09:47:20,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:20,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517125207] [2021-12-15 09:47:20,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:20,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:47:20,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:20,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517125207] [2021-12-15 09:47:20,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517125207] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:47:20,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:47:20,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:47:20,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362145366] [2021-12-15 09:47:20,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:20,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:47:20,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:20,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:47:20,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:47:20,632 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:21,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:21,838 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2021-12-15 09:47:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:47:21,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-12-15 09:47:21,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:21,854 INFO L225 Difference]: With dead ends: 850 [2021-12-15 09:47:21,855 INFO L226 Difference]: Without dead ends: 538 [2021-12-15 09:47:21,858 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 [2021-12-15 09:47:21,860 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 464 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:21,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [464 Valid, 194 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-15 09:47:21,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-12-15 09:47:21,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-12-15 09:47:21,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:21,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2021-12-15 09:47:21,918 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 62 [2021-12-15 09:47:21,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:21,919 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2021-12-15 09:47:21,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:21,919 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2021-12-15 09:47:21,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-15 09:47:21,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:21,923 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, 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] [2021-12-15 09:47:21,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 09:47:21,923 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:21,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:21,924 INFO L85 PathProgramCache]: Analyzing trace with hash -56024554, now seen corresponding path program 1 times [2021-12-15 09:47:21,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:21,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519124010] [2021-12-15 09:47:21,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:21,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:22,054 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:47:22,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:22,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519124010] [2021-12-15 09:47:22,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519124010] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:47:22,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:47:22,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:47:22,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486791216] [2021-12-15 09:47:22,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:22,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:47:22,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:22,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:47:22,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:47:22,057 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:22,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:22,701 INFO L93 Difference]: Finished difference Result 1283 states and 1979 transitions. [2021-12-15 09:47:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:47:22,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2021-12-15 09:47:22,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:22,704 INFO L225 Difference]: With dead ends: 1283 [2021-12-15 09:47:22,705 INFO L226 Difference]: Without dead ends: 896 [2021-12-15 09:47:22,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:47:22,707 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 120 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:22,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 121 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:47:22,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2021-12-15 09:47:22,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 894. [2021-12-15 09:47:22,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1836506159014557) internal successors, (1057), 893 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:22,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1057 transitions. [2021-12-15 09:47:22,728 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1057 transitions. Word has length 142 [2021-12-15 09:47:22,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:22,729 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1057 transitions. [2021-12-15 09:47:22,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:22,729 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1057 transitions. [2021-12-15 09:47:22,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-12-15 09:47:22,736 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:22,737 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:22,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 09:47:22,737 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:22,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:22,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1675654197, now seen corresponding path program 1 times [2021-12-15 09:47:22,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:22,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124509212] [2021-12-15 09:47:22,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:22,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:22,877 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 119 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:47:22,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:22,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124509212] [2021-12-15 09:47:22,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124509212] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:47:22,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854083286] [2021-12-15 09:47:22,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:22,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:22,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:47:22,880 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 09:47:22,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 09:47:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:22,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 09:47:22,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:47:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-15 09:47:23,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:47:23,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854083286] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:47:23,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:47:23,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-15 09:47:23,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004373846] [2021-12-15 09:47:23,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:23,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:47:23,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:23,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:47:23,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-15 09:47:23,357 INFO L87 Difference]: Start difference. First operand 894 states and 1057 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:23,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:23,789 INFO L93 Difference]: Finished difference Result 1964 states and 2439 transitions. [2021-12-15 09:47:23,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:47:23,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2021-12-15 09:47:23,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:23,793 INFO L225 Difference]: With dead ends: 1964 [2021-12-15 09:47:23,793 INFO L226 Difference]: Without dead ends: 1250 [2021-12-15 09:47:23,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-15 09:47:23,795 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 84 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:23,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:47:23,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-12-15 09:47:23,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-12-15 09:47:23,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.188150520416333) internal successors, (1484), 1249 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:23,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1484 transitions. [2021-12-15 09:47:23,813 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1484 transitions. Word has length 233 [2021-12-15 09:47:23,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:23,813 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1484 transitions. [2021-12-15 09:47:23,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:23,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1484 transitions. [2021-12-15 09:47:23,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-12-15 09:47:23,816 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:23,816 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:23,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 09:47:24,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:24,034 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:24,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:24,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1903372100, now seen corresponding path program 1 times [2021-12-15 09:47:24,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:24,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069849583] [2021-12-15 09:47:24,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:24,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:24,109 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:47:24,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:24,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069849583] [2021-12-15 09:47:24,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069849583] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:47:24,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:47:24,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:47:24,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770160649] [2021-12-15 09:47:24,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:24,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:47:24,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:24,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:47:24,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:47:24,112 INFO L87 Difference]: Start difference. First operand 1250 states and 1484 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) [2021-12-15 09:47:24,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:24,550 INFO L93 Difference]: Finished difference Result 2854 states and 3434 transitions. [2021-12-15 09:47:24,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:47:24,551 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 [2021-12-15 09:47:24,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:24,556 INFO L225 Difference]: With dead ends: 2854 [2021-12-15 09:47:24,556 INFO L226 Difference]: Without dead ends: 1784 [2021-12-15 09:47:24,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:47:24,564 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:24,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 77 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:47:24,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-12-15 09:47:24,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2021-12-15 09:47:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1542344363432417) internal successors, (2058), 1783 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:24,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2058 transitions. [2021-12-15 09:47:24,597 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2058 transitions. Word has length 236 [2021-12-15 09:47:24,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:24,598 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2058 transitions. [2021-12-15 09:47:24,598 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) [2021-12-15 09:47:24,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2058 transitions. [2021-12-15 09:47:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-12-15 09:47:24,603 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:24,603 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, 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, 2, 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] [2021-12-15 09:47:24,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 09:47:24,604 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:24,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:24,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1408732317, now seen corresponding path program 1 times [2021-12-15 09:47:24,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:24,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437938519] [2021-12-15 09:47:24,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:24,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:24,779 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-12-15 09:47:24,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:24,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437938519] [2021-12-15 09:47:24,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437938519] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:47:24,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:47:24,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:47:24,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390372471] [2021-12-15 09:47:24,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:24,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:47:24,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:24,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:47:24,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:47:24,781 INFO L87 Difference]: Start difference. First operand 1784 states and 2058 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:25,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:25,270 INFO L93 Difference]: Finished difference Result 3417 states and 4000 transitions. [2021-12-15 09:47:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:47:25,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 353 [2021-12-15 09:47:25,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:25,276 INFO L225 Difference]: With dead ends: 3417 [2021-12-15 09:47:25,276 INFO L226 Difference]: Without dead ends: 1962 [2021-12-15 09:47:25,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:47:25,278 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 142 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:25,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 17 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:47:25,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-12-15 09:47:25,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-12-15 09:47:25,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1099270891755468) internal successors, (1979), 1783 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:25,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1979 transitions. [2021-12-15 09:47:25,300 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1979 transitions. Word has length 353 [2021-12-15 09:47:25,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:25,301 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 1979 transitions. [2021-12-15 09:47:25,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:25,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1979 transitions. [2021-12-15 09:47:25,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-12-15 09:47:25,305 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:25,305 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, 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, 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] [2021-12-15 09:47:25,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 09:47:25,306 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:25,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:25,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1006014571, now seen corresponding path program 1 times [2021-12-15 09:47:25,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:25,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760627364] [2021-12-15 09:47:25,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:25,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:25,461 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 113 proven. 66 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-15 09:47:25,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:25,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760627364] [2021-12-15 09:47:25,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760627364] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:47:25,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111781037] [2021-12-15 09:47:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:25,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:25,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:47:25,475 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 09:47:25,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 09:47:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:25,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 09:47:25,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:47:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2021-12-15 09:47:26,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:47:26,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111781037] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:47:26,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:47:26,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-12-15 09:47:26,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591749193] [2021-12-15 09:47:26,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:26,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:47:26,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:26,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:47:26,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:47:26,243 INFO L87 Difference]: Start difference. First operand 1784 states and 1979 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 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) [2021-12-15 09:47:26,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:26,606 INFO L93 Difference]: Finished difference Result 2498 states and 2748 transitions. [2021-12-15 09:47:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:47:26,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 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 442 [2021-12-15 09:47:26,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:26,612 INFO L225 Difference]: With dead ends: 2498 [2021-12-15 09:47:26,613 INFO L226 Difference]: Without dead ends: 2496 [2021-12-15 09:47:26,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:47:26,615 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:26,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 11 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:47:26,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-12-15 09:47:26,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1606. [2021-12-15 09:47:26,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.0859813084112149) internal successors, (1743), 1605 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:26,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1743 transitions. [2021-12-15 09:47:26,642 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1743 transitions. Word has length 442 [2021-12-15 09:47:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:26,643 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1743 transitions. [2021-12-15 09:47:26,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 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) [2021-12-15 09:47:26,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1743 transitions. [2021-12-15 09:47:26,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2021-12-15 09:47:26,647 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:26,647 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:26,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 09:47:26,865 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,SelfDestructingSolverStorable5 [2021-12-15 09:47:26,865 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:26,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:26,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1492890716, now seen corresponding path program 1 times [2021-12-15 09:47:26,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:26,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678904065] [2021-12-15 09:47:26,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:26,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:26,982 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 445 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-15 09:47:26,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:26,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678904065] [2021-12-15 09:47:26,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678904065] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:47:26,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:47:26,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:47:26,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564580974] [2021-12-15 09:47:26,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:26,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:47:26,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:26,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:47:26,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:47:26,985 INFO L87 Difference]: Start difference. First operand 1606 states and 1743 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:27,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:27,392 INFO L93 Difference]: Finished difference Result 3566 states and 3923 transitions. [2021-12-15 09:47:27,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:47:27,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 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 448 [2021-12-15 09:47:27,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:27,398 INFO L225 Difference]: With dead ends: 3566 [2021-12-15 09:47:27,398 INFO L226 Difference]: Without dead ends: 2140 [2021-12-15 09:47:27,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:47:27,400 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:27,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:47:27,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-12-15 09:47:27,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1784. [2021-12-15 09:47:27,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.0779584969153113) internal successors, (1922), 1783 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:27,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1922 transitions. [2021-12-15 09:47:27,424 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1922 transitions. Word has length 448 [2021-12-15 09:47:27,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:27,425 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 1922 transitions. [2021-12-15 09:47:27,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:27,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1922 transitions. [2021-12-15 09:47:27,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-12-15 09:47:27,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:27,429 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:27,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 09:47:27,429 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:27,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:27,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2114704159, now seen corresponding path program 1 times [2021-12-15 09:47:27,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:27,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232301450] [2021-12-15 09:47:27,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:27,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 445 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-15 09:47:27,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:27,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232301450] [2021-12-15 09:47:27,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232301450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:47:27,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:47:27,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:47:27,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996146002] [2021-12-15 09:47:27,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:27,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:47:27,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:27,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:47:27,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:47:27,536 INFO L87 Difference]: Start difference. First operand 1784 states and 1922 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:27,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:27,945 INFO L93 Difference]: Finished difference Result 4100 states and 4485 transitions. [2021-12-15 09:47:27,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:47:27,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 455 [2021-12-15 09:47:27,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:27,952 INFO L225 Difference]: With dead ends: 4100 [2021-12-15 09:47:27,952 INFO L226 Difference]: Without dead ends: 2496 [2021-12-15 09:47:27,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:47:27,954 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 111 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:27,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 243 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:47:27,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-12-15 09:47:27,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2021-12-15 09:47:27,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.0673284419507985) internal successors, (2473), 2317 states have internal predecessors, (2473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:27,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2473 transitions. [2021-12-15 09:47:27,990 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2473 transitions. Word has length 455 [2021-12-15 09:47:27,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:27,991 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2473 transitions. [2021-12-15 09:47:27,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:27,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2473 transitions. [2021-12-15 09:47:28,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2021-12-15 09:47:28,003 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:28,004 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:28,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 09:47:28,004 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:28,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:28,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1712957352, now seen corresponding path program 1 times [2021-12-15 09:47:28,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:28,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643252213] [2021-12-15 09:47:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:28,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:28,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1211 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-12-15 09:47:28,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:28,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643252213] [2021-12-15 09:47:28,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643252213] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:47:28,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:47:28,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:47:28,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413780570] [2021-12-15 09:47:28,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:28,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:47:28,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:28,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:47:28,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:47:28,147 INFO L87 Difference]: Start difference. First operand 2318 states and 2473 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:28,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:28,536 INFO L93 Difference]: Finished difference Result 4990 states and 5392 transitions. [2021-12-15 09:47:28,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:47:28,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 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 610 [2021-12-15 09:47:28,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:28,545 INFO L225 Difference]: With dead ends: 4990 [2021-12-15 09:47:28,545 INFO L226 Difference]: Without dead ends: 2852 [2021-12-15 09:47:28,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:47:28,548 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:28,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 241 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:47:28,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-12-15 09:47:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2852. [2021-12-15 09:47:28,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0659417748158542) internal successors, (3039), 2851 states have internal predecessors, (3039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:28,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3039 transitions. [2021-12-15 09:47:28,603 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3039 transitions. Word has length 610 [2021-12-15 09:47:28,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:28,604 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3039 transitions. [2021-12-15 09:47:28,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:28,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3039 transitions. [2021-12-15 09:47:28,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2021-12-15 09:47:28,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:28,608 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:28,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 09:47:28,608 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:28,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:28,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1576219291, now seen corresponding path program 1 times [2021-12-15 09:47:28,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:28,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175384193] [2021-12-15 09:47:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:28,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:28,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1211 backedges. 744 proven. 93 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2021-12-15 09:47:28,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:28,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175384193] [2021-12-15 09:47:28,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175384193] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:47:28,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396520243] [2021-12-15 09:47:28,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:28,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:28,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:47:28,787 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) [2021-12-15 09:47:28,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 09:47:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:28,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 09:47:28,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:47:29,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1211 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 912 trivial. 0 not checked. [2021-12-15 09:47:29,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:47:29,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396520243] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:47:29,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:47:29,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 09:47:29,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69208900] [2021-12-15 09:47:29,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:29,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:47:29,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:29,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:47:29,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:47:29,531 INFO L87 Difference]: Start difference. First operand 2852 states and 3039 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:29,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:29,925 INFO L93 Difference]: Finished difference Result 6414 states and 6852 transitions. [2021-12-15 09:47:29,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:47:29,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 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 628 [2021-12-15 09:47:29,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:29,943 INFO L225 Difference]: With dead ends: 6414 [2021-12-15 09:47:29,943 INFO L226 Difference]: Without dead ends: 3030 [2021-12-15 09:47:29,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:47:29,947 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 119 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:29,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 247 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:47:29,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-12-15 09:47:30,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2852. [2021-12-15 09:47:30,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0627849877236057) internal successors, (3030), 2851 states have internal predecessors, (3030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3030 transitions. [2021-12-15 09:47:30,020 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3030 transitions. Word has length 628 [2021-12-15 09:47:30,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:30,035 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3030 transitions. [2021-12-15 09:47:30,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:30,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3030 transitions. [2021-12-15 09:47:30,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2021-12-15 09:47:30,040 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:30,041 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:30,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-15 09:47:30,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:30,280 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:30,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:30,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1833335910, now seen corresponding path program 1 times [2021-12-15 09:47:30,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:30,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644533677] [2021-12-15 09:47:30,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:30,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 1174 proven. 93 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2021-12-15 09:47:30,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:30,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644533677] [2021-12-15 09:47:30,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644533677] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:47:30,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635548956] [2021-12-15 09:47:30,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:30,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:30,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:47:30,509 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) [2021-12-15 09:47:30,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 09:47:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:30,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 09:47:30,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:47:34,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 1289 proven. 108 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2021-12-15 09:47:34,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 09:47:41,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 756 proven. 323 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2021-12-15 09:47:41,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635548956] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 09:47:41,426 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 09:47:41,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 11 [2021-12-15 09:47:41,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759434414] [2021-12-15 09:47:41,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 09:47:41,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 09:47:41,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:41,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 09:47:41,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-12-15 09:47:41,430 INFO L87 Difference]: Start difference. First operand 2852 states and 3030 transitions. Second operand has 12 states, 12 states have (on average 90.83333333333333) internal successors, (1090), 11 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:43,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:43,389 INFO L93 Difference]: Finished difference Result 6643 states and 7062 transitions. [2021-12-15 09:47:43,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-15 09:47:43,390 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 90.83333333333333) internal successors, (1090), 11 states have internal predecessors, (1090), 0 states have call successors, (0), 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 737 [2021-12-15 09:47:43,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:43,398 INFO L225 Difference]: With dead ends: 6643 [2021-12-15 09:47:43,398 INFO L226 Difference]: Without dead ends: 3790 [2021-12-15 09:47:43,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1486 GetRequests, 1466 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=289, Unknown=0, NotChecked=0, Total=462 [2021-12-15 09:47:43,401 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 1318 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 2778 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 2993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:43,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1318 Valid, 68 Invalid, 2993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2778 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-15 09:47:43,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3790 states. [2021-12-15 09:47:43,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3790 to 3208. [2021-12-15 09:47:43,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0411599625818522) internal successors, (3339), 3207 states have internal predecessors, (3339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:43,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3339 transitions. [2021-12-15 09:47:43,439 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3339 transitions. Word has length 737 [2021-12-15 09:47:43,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:43,440 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3339 transitions. [2021-12-15 09:47:43,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 90.83333333333333) internal successors, (1090), 11 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:43,440 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3339 transitions. [2021-12-15 09:47:43,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2021-12-15 09:47:43,445 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:43,445 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:43,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-15 09:47:43,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:43,663 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:43,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:43,664 INFO L85 PathProgramCache]: Analyzing trace with hash -78197845, now seen corresponding path program 1 times [2021-12-15 09:47:43,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:43,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402718009] [2021-12-15 09:47:43,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:43,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 1429 proven. 155 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2021-12-15 09:47:43,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:43,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402718009] [2021-12-15 09:47:43,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402718009] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:47:43,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170553832] [2021-12-15 09:47:43,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:43,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:43,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:47:43,908 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) [2021-12-15 09:47:43,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-15 09:47:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:44,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 09:47:44,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:47:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2021-12-15 09:47:45,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:47:45,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170553832] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:47:45,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:47:45,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 09:47:45,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988382819] [2021-12-15 09:47:45,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:45,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:47:45,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:45,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:47:45,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-15 09:47:45,101 INFO L87 Difference]: Start difference. First operand 3208 states and 3339 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:45,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:45,398 INFO L93 Difference]: Finished difference Result 3922 states and 4083 transitions. [2021-12-15 09:47:45,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:47:45,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 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 813 [2021-12-15 09:47:45,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:45,409 INFO L225 Difference]: With dead ends: 3922 [2021-12-15 09:47:45,409 INFO L226 Difference]: Without dead ends: 3920 [2021-12-15 09:47:45,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 816 GetRequests, 813 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-15 09:47:45,410 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 140 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:45,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 11 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:47:45,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-12-15 09:47:45,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3208. [2021-12-15 09:47:45,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0408481446835047) internal successors, (3338), 3207 states have internal predecessors, (3338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:45,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3338 transitions. [2021-12-15 09:47:45,480 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3338 transitions. Word has length 813 [2021-12-15 09:47:45,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:45,481 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3338 transitions. [2021-12-15 09:47:45,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:45,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3338 transitions. [2021-12-15 09:47:45,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 862 [2021-12-15 09:47:45,489 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:45,490 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, 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, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:45,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-15 09:47:45,707 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,SelfDestructingSolverStorable11 [2021-12-15 09:47:45,708 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:45,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:45,708 INFO L85 PathProgramCache]: Analyzing trace with hash 311312007, now seen corresponding path program 1 times [2021-12-15 09:47:45,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:45,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637731383] [2021-12-15 09:47:45,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:45,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:45,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2327 backedges. 1668 proven. 155 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2021-12-15 09:47:45,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:45,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637731383] [2021-12-15 09:47:45,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637731383] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:47:45,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714170064] [2021-12-15 09:47:45,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:45,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:45,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:47:45,936 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) [2021-12-15 09:47:45,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-15 09:47:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:46,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 09:47:46,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:47:46,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2327 backedges. 838 proven. 0 refuted. 0 times theorem prover too weak. 1489 trivial. 0 not checked. [2021-12-15 09:47:46,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:47:46,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714170064] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:47:46,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:47:46,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 09:47:46,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503562786] [2021-12-15 09:47:46,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:46,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:47:46,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:46,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:47:46,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-15 09:47:46,992 INFO L87 Difference]: Start difference. First operand 3208 states and 3338 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:47,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:47,221 INFO L93 Difference]: Finished difference Result 6592 states and 6895 transitions. [2021-12-15 09:47:47,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:47:47,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 861 [2021-12-15 09:47:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:47,231 INFO L225 Difference]: With dead ends: 6592 [2021-12-15 09:47:47,231 INFO L226 Difference]: Without dead ends: 3564 [2021-12-15 09:47:47,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 864 GetRequests, 861 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-15 09:47:47,238 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 111 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:47,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 222 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 09:47:47,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-12-15 09:47:47,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3564. [2021-12-15 09:47:47,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0406960426606793) internal successors, (3708), 3563 states have internal predecessors, (3708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3708 transitions. [2021-12-15 09:47:47,277 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3708 transitions. Word has length 861 [2021-12-15 09:47:47,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:47,277 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3708 transitions. [2021-12-15 09:47:47,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:47,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3708 transitions. [2021-12-15 09:47:47,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 910 [2021-12-15 09:47:47,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:47,285 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:47,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-15 09:47:47,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:47,504 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:47,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:47,504 INFO L85 PathProgramCache]: Analyzing trace with hash -763280369, now seen corresponding path program 1 times [2021-12-15 09:47:47,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:47,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795313301] [2021-12-15 09:47:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:47,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:47,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2522 backedges. 1863 proven. 155 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2021-12-15 09:47:47,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:47,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795313301] [2021-12-15 09:47:47,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795313301] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:47:47,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273441653] [2021-12-15 09:47:47,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:47,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:47,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:47:47,683 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) [2021-12-15 09:47:47,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-15 09:47:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:47,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 09:47:47,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:47:48,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2522 backedges. 1863 proven. 155 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2021-12-15 09:47:48,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 09:47:49,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2522 backedges. 1863 proven. 155 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2021-12-15 09:47:49,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273441653] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 09:47:49,443 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 09:47:49,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-15 09:47:49,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828988405] [2021-12-15 09:47:49,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 09:47:49,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 09:47:49,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:49,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 09:47:49,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:47:49,445 INFO L87 Difference]: Start difference. First operand 3564 states and 3708 transitions. Second operand has 6 states, 6 states have (on average 150.66666666666666) internal successors, (904), 6 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:49,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:49,935 INFO L93 Difference]: Finished difference Result 8194 states and 8549 transitions. [2021-12-15 09:47:49,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 09:47:49,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 150.66666666666666) internal successors, (904), 6 states have internal predecessors, (904), 0 states have call successors, (0), 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 909 [2021-12-15 09:47:49,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:49,953 INFO L225 Difference]: With dead ends: 8194 [2021-12-15 09:47:49,953 INFO L226 Difference]: Without dead ends: 4810 [2021-12-15 09:47:49,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1820 GetRequests, 1816 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:47:49,957 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 70 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:49,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 45 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:47:49,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-12-15 09:47:50,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4454. [2021-12-15 09:47:50,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0415450258252863) internal successors, (4638), 4453 states have internal predecessors, (4638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:50,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4638 transitions. [2021-12-15 09:47:50,024 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4638 transitions. Word has length 909 [2021-12-15 09:47:50,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:50,025 INFO L470 AbstractCegarLoop]: Abstraction has 4454 states and 4638 transitions. [2021-12-15 09:47:50,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.66666666666666) internal successors, (904), 6 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:50,025 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4638 transitions. [2021-12-15 09:47:50,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1077 [2021-12-15 09:47:50,036 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:50,036 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 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, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:50,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-15 09:47:50,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:50,255 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:50,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:50,255 INFO L85 PathProgramCache]: Analyzing trace with hash -762251848, now seen corresponding path program 1 times [2021-12-15 09:47:50,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:50,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143990364] [2021-12-15 09:47:50,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:50,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3764 backedges. 2688 proven. 72 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2021-12-15 09:47:50,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:50,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143990364] [2021-12-15 09:47:50,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143990364] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:47:50,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157134871] [2021-12-15 09:47:50,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:50,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:50,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:47:50,532 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) [2021-12-15 09:47:50,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-15 09:47:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:50,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-15 09:47:50,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:47:51,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3764 backedges. 2647 proven. 666 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2021-12-15 09:47:51,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 09:47:52,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3764 backedges. 2760 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2021-12-15 09:47:52,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157134871] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-15 09:47:52,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-15 09:47:52,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2021-12-15 09:47:52,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475386638] [2021-12-15 09:47:52,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:52,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 09:47:52,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:52,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 09:47:52,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-15 09:47:52,766 INFO L87 Difference]: Start difference. First operand 4454 states and 4638 transitions. Second operand has 5 states, 5 states have (on average 124.2) internal successors, (621), 5 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:53,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:53,135 INFO L93 Difference]: Finished difference Result 9084 states and 9466 transitions. [2021-12-15 09:47:53,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:47:53,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 124.2) internal successors, (621), 5 states have internal predecessors, (621), 0 states have call successors, (0), 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 1076 [2021-12-15 09:47:53,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:53,143 INFO L225 Difference]: With dead ends: 9084 [2021-12-15 09:47:53,143 INFO L226 Difference]: Without dead ends: 4810 [2021-12-15 09:47:53,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2155 GetRequests, 2147 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-15 09:47:53,147 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 249 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:53,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 9 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:47:53,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-12-15 09:47:53,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4632. [2021-12-15 09:47:53,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0375728784279854) internal successors, (4805), 4631 states have internal predecessors, (4805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:53,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4805 transitions. [2021-12-15 09:47:53,193 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4805 transitions. Word has length 1076 [2021-12-15 09:47:53,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:53,194 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4805 transitions. [2021-12-15 09:47:53,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.2) internal successors, (621), 5 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:53,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4805 transitions. [2021-12-15 09:47:53,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1236 [2021-12-15 09:47:53,204 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:53,205 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:53,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-15 09:47:53,413 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,SelfDestructingSolverStorable14 [2021-12-15 09:47:53,414 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:53,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:53,415 INFO L85 PathProgramCache]: Analyzing trace with hash 243794430, now seen corresponding path program 1 times [2021-12-15 09:47:53,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:53,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289171129] [2021-12-15 09:47:53,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:53,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4300 backedges. 3224 proven. 72 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2021-12-15 09:47:53,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:53,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289171129] [2021-12-15 09:47:53,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289171129] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:47:53,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113271925] [2021-12-15 09:47:53,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:53,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:53,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:47:53,948 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) [2021-12-15 09:47:53,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-15 09:47:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:54,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 1504 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-15 09:47:54,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:47:55,359 INFO L134 CoverageAnalysis]: Checked inductivity of 4300 backedges. 3133 proven. 716 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2021-12-15 09:47:55,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 09:47:56,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4300 backedges. 3296 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2021-12-15 09:47:56,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113271925] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-15 09:47:56,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-15 09:47:56,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2021-12-15 09:47:56,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283893373] [2021-12-15 09:47:56,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:47:56,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 09:47:56,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:47:56,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 09:47:56,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-15 09:47:56,118 INFO L87 Difference]: Start difference. First operand 4632 states and 4805 transitions. Second operand has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:56,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:47:56,522 INFO L93 Difference]: Finished difference Result 9084 states and 9429 transitions. [2021-12-15 09:47:56,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:47:56,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 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 1235 [2021-12-15 09:47:56,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:47:56,528 INFO L225 Difference]: With dead ends: 9084 [2021-12-15 09:47:56,529 INFO L226 Difference]: Without dead ends: 4632 [2021-12-15 09:47:56,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2473 GetRequests, 2465 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-15 09:47:56,536 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 259 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:47:56,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 9 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:47:56,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-12-15 09:47:56,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4276. [2021-12-15 09:47:56,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.0381286549707602) internal successors, (4438), 4275 states have internal predecessors, (4438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:56,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4438 transitions. [2021-12-15 09:47:56,586 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4438 transitions. Word has length 1235 [2021-12-15 09:47:56,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:47:56,586 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 4438 transitions. [2021-12-15 09:47:56,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:47:56,587 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4438 transitions. [2021-12-15 09:47:56,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1486 [2021-12-15 09:47:56,615 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:47:56,615 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:47:56,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-15 09:47:56,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-15 09:47:56,832 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:47:56,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:47:56,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1220920875, now seen corresponding path program 1 times [2021-12-15 09:47:56,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:47:56,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052259250] [2021-12-15 09:47:56,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:56,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:47:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:57,291 INFO L134 CoverageAnalysis]: Checked inductivity of 6478 backedges. 2852 proven. 120 refuted. 0 times theorem prover too weak. 3506 trivial. 0 not checked. [2021-12-15 09:47:57,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:47:57,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052259250] [2021-12-15 09:47:57,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052259250] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:47:57,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043040751] [2021-12-15 09:47:57,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:47:57,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:47:57,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:47:57,293 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) [2021-12-15 09:47:57,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-15 09:47:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:47:57,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 09:47:57,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:47:59,335 INFO L134 CoverageAnalysis]: Checked inductivity of 6478 backedges. 1842 proven. 60 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-12-15 09:47:59,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 09:48:00,949 INFO L134 CoverageAnalysis]: Checked inductivity of 6478 backedges. 1842 proven. 60 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-12-15 09:48:00,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043040751] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 09:48:00,949 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 09:48:00,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2021-12-15 09:48:00,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803803366] [2021-12-15 09:48:00,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 09:48:00,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 09:48:00,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:48:00,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 09:48:00,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-15 09:48:00,952 INFO L87 Difference]: Start difference. First operand 4276 states and 4438 transitions. Second operand has 8 states, 8 states have (on average 126.5) internal successors, (1012), 8 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:48:02,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:48:02,308 INFO L93 Difference]: Finished difference Result 11396 states and 11829 transitions. [2021-12-15 09:48:02,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-15 09:48:02,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 126.5) internal successors, (1012), 8 states have internal predecessors, (1012), 0 states have call successors, (0), 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 1485 [2021-12-15 09:48:02,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:48:02,310 INFO L225 Difference]: With dead ends: 11396 [2021-12-15 09:48:02,311 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 09:48:02,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2977 GetRequests, 2968 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-15 09:48:02,317 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 793 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 2483 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 2483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:48:02,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [793 Valid, 43 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 2483 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-15 09:48:02,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 09:48:02,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 09:48:02,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:48:02,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 09:48:02,318 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1485 [2021-12-15 09:48:02,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:48:02,318 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 09:48:02,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 126.5) internal successors, (1012), 8 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:48:02,318 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 09:48:02,323 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 09:48:02,325 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 09:48:02,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-15 09:48:02,529 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,SelfDestructingSolverStorable16 [2021-12-15 09:48:02,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-12-15 09:48:04,779 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-12-15 09:48:04,780 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-12-15 09:48:04,781 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-12-15 09:48:04,782 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-12-15 09:48:04,783 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 200) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-12-15 09:48:04,784 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-12-15 09:48:04,797 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-12-15 09:48:04,798 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-12-15 09:48:04,798 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-12-15 09:48:04,798 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-12-15 09:48:04,798 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-12-15 09:48:04,798 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-12-15 09:48:04,798 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,798 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,798 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,798 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-12-15 09:48:04,798 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-15 09:48:04,799 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-12-15 09:48:04,799 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-12-15 09:48:04,799 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-12-15 09:48:04,799 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-12-15 09:48:04,799 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-12-15 09:48:04,799 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-12-15 09:48:04,799 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,799 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,799 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,799 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-12-15 09:48:04,800 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-12-15 09:48:04,800 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-12-15 09:48:04,800 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-12-15 09:48:04,800 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-12-15 09:48:04,800 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-12-15 09:48:04,800 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-12-15 09:48:04,800 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-12-15 09:48:04,800 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,800 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,800 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,801 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-12-15 09:48:04,801 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-12-15 09:48:04,801 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-12-15 09:48:04,801 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-12-15 09:48:04,801 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-12-15 09:48:04,801 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-12-15 09:48:04,801 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-12-15 09:48:04,801 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-12-15 09:48:04,801 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,801 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,802 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,802 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-12-15 09:48:04,802 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-15 09:48:04,802 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-12-15 09:48:04,802 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-12-15 09:48:04,802 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-12-15 09:48:04,802 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-12-15 09:48:04,802 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-12-15 09:48:04,802 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-12-15 09:48:04,802 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,803 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,803 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-12-15 09:48:04,803 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-12-15 09:48:04,803 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-12-15 09:48:04,803 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-12-15 09:48:04,803 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-12-15 09:48:04,803 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-12-15 09:48:04,803 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-12-15 09:48:04,803 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-12-15 09:48:04,804 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,804 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,804 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-12-15 09:48:04,804 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 09:48:04,804 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-12-15 09:48:04,804 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-12-15 09:48:04,804 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-12-15 09:48:04,804 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-12-15 09:48:04,804 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-12-15 09:48:04,804 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,805 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,805 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse19 (div (+ (* ~a12~0 10) 2779120) 9)) (.cse17 (+ ~a12~0 43))) (let ((.cse12 (not (= 5 ~a15~0))) (.cse6 (< 80 ~a12~0)) (.cse2 (<= ~a12~0 11)) (.cse8 (<= .cse17 0)) (.cse18 (div (+ (* .cse19 (- 1)) 437300) 10))) (let ((.cse9 (<= 12849 ~a12~0)) (.cse10 (< 0 (+ .cse18 44))) (.cse11 (or (< 0 (+ .cse18 43)) (not (= 0 (mod (* .cse19 9) 10))))) (.cse13 (<= ~a15~0 8)) (.cse3 (< 0 .cse17)) (.cse7 (<= ~a15~0 5)) (.cse4 (<= ~a12~0 600006)) (.cse5 (or (and (or (not (= 9 ~a15~0)) (not (= 1 ~a24~0))) (or .cse12 (not (= 2 ~a24~0)))) (and (or .cse6 .cse2) (or (< 11 ~a12~0) .cse8)))) (.cse0 (<= 8 ~a15~0)) (.cse1 (= ~a24~0 1)) (.cse15 (<= 8 ~a21~0)) (.cse14 (<= ~a12~0 76)) (.cse16 (<= ~a21~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse1 .cse6 (<= 9 ~a21~0)) (and .cse7 .cse1) (and .cse4 .cse5 .cse1 (<= 7 ~a21~0) (<= ~a21~0 7) .cse3) (and .cse0 (<= 10 ~a21~0) .cse1 .cse8) (and .cse0 .cse5 .cse1 .cse9 .cse10 .cse11) (and .cse12 .cse13 .cse1 .cse9 .cse10 .cse11) (and .cse4 (or (and .cse12 (<= 7 ~a15~0) .cse13 .cse1) (and .cse1 .cse13 (not (= ~a21~0 6))))) (and .cse12 .cse13 .cse1 .cse14 .cse3) (and .cse7 .cse2) (and .cse4 .cse0 .cse5 .cse1 .cse15 .cse16) (and .cse0 .cse1 .cse15 .cse14 .cse16))))) [2021-12-15 09:48:04,805 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-12-15 09:48:04,805 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-12-15 09:48:04,805 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-15 09:48:04,805 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-12-15 09:48:04,806 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-12-15 09:48:04,806 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-12-15 09:48:04,806 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-12-15 09:48:04,806 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-12-15 09:48:04,806 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,806 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,806 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-12-15 09:48:04,806 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-12-15 09:48:04,806 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-12-15 09:48:04,806 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-15 09:48:04,807 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-12-15 09:48:04,807 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-12-15 09:48:04,807 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-12-15 09:48:04,807 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-12-15 09:48:04,807 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,807 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,807 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 09:48:04,807 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-12-15 09:48:04,807 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-12-15 09:48:04,807 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-12-15 09:48:04,808 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-12-15 09:48:04,808 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-12-15 09:48:04,808 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-12-15 09:48:04,808 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,808 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,808 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-12-15 09:48:04,808 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,808 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-12-15 09:48:04,809 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse19 (div (+ (* ~a12~0 10) 2779120) 9)) (.cse17 (+ ~a12~0 43))) (let ((.cse12 (not (= 5 ~a15~0))) (.cse6 (< 80 ~a12~0)) (.cse2 (<= ~a12~0 11)) (.cse8 (<= .cse17 0)) (.cse18 (div (+ (* .cse19 (- 1)) 437300) 10))) (let ((.cse9 (<= 12849 ~a12~0)) (.cse10 (< 0 (+ .cse18 44))) (.cse11 (or (< 0 (+ .cse18 43)) (not (= 0 (mod (* .cse19 9) 10))))) (.cse13 (<= ~a15~0 8)) (.cse3 (< 0 .cse17)) (.cse7 (<= ~a15~0 5)) (.cse4 (<= ~a12~0 600006)) (.cse5 (or (and (or (not (= 9 ~a15~0)) (not (= 1 ~a24~0))) (or .cse12 (not (= 2 ~a24~0)))) (and (or .cse6 .cse2) (or (< 11 ~a12~0) .cse8)))) (.cse0 (<= 8 ~a15~0)) (.cse1 (= ~a24~0 1)) (.cse15 (<= 8 ~a21~0)) (.cse14 (<= ~a12~0 76)) (.cse16 (<= ~a21~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse1 .cse6 (<= 9 ~a21~0)) (and .cse7 .cse1) (and .cse4 .cse5 .cse1 (<= 7 ~a21~0) (<= ~a21~0 7) .cse3) (and .cse0 (<= 10 ~a21~0) .cse1 .cse8) (and .cse0 .cse5 .cse1 .cse9 .cse10 .cse11) (and .cse12 .cse13 .cse1 .cse9 .cse10 .cse11) (and .cse4 (or (and .cse12 (<= 7 ~a15~0) .cse13 .cse1) (and .cse1 .cse13 (not (= ~a21~0 6))))) (and .cse12 .cse13 .cse1 .cse14 .cse3) (and .cse7 .cse2) (and .cse4 .cse0 .cse5 .cse1 .cse15 .cse16) (and .cse0 .cse1 .cse15 .cse14 .cse16))))) [2021-12-15 09:48:04,809 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-12-15 09:48:04,809 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-12-15 09:48:04,809 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-15 09:48:04,809 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-12-15 09:48:04,809 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-12-15 09:48:04,809 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-12-15 09:48:04,809 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-12-15 09:48:04,809 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-12-15 09:48:04,809 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-12-15 09:48:04,810 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,810 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,810 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 09:48:04,810 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-12-15 09:48:04,810 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-12-15 09:48:04,810 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-12-15 09:48:04,810 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-12-15 09:48:04,813 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:48:04,814 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 09:48:04,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:48:04 BoogieIcfgContainer [2021-12-15 09:48:04,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 09:48:04,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 09:48:04,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 09:48:04,837 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 09:48:04,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:47:20" (3/4) ... [2021-12-15 09:48:04,840 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 09:48:04,872 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 09:48:04,880 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 09:48:04,880 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 09:48:04,881 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 09:48:04,981 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 09:48:04,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 09:48:04,982 INFO L158 Benchmark]: Toolchain (without parser) took 46296.07ms. Allocated memory was 136.3MB in the beginning and 564.1MB in the end (delta: 427.8MB). Free memory was 105.6MB in the beginning and 508.2MB in the end (delta: -402.6MB). Peak memory consumption was 348.0MB. Max. memory is 16.1GB. [2021-12-15 09:48:04,982 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 48.0MB in the beginning and 48.0MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 09:48:04,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.38ms. Allocated memory is still 136.3MB. Free memory was 105.3MB in the beginning and 91.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 09:48:04,982 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.37ms. Allocated memory is still 136.3MB. Free memory was 91.2MB in the beginning and 81.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 09:48:04,983 INFO L158 Benchmark]: Boogie Preprocessor took 55.59ms. Allocated memory is still 136.3MB. Free memory was 81.6MB in the beginning and 75.8MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 09:48:04,983 INFO L158 Benchmark]: RCFGBuilder took 1002.35ms. Allocated memory is still 136.3MB. Free memory was 75.8MB in the beginning and 57.1MB in the end (delta: 18.7MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2021-12-15 09:48:04,983 INFO L158 Benchmark]: TraceAbstraction took 44528.33ms. Allocated memory was 136.3MB in the beginning and 564.1MB in the end (delta: 427.8MB). Free memory was 56.4MB in the beginning and 193.5MB in the end (delta: -137.1MB). Peak memory consumption was 306.8MB. Max. memory is 16.1GB. [2021-12-15 09:48:04,983 INFO L158 Benchmark]: Witness Printer took 144.13ms. Allocated memory is still 564.1MB. Free memory was 193.5MB in the beginning and 508.2MB in the end (delta: -314.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 09:48:04,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 48.0MB in the beginning and 48.0MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.38ms. Allocated memory is still 136.3MB. Free memory was 105.3MB in the beginning and 91.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.37ms. Allocated memory is still 136.3MB. Free memory was 91.2MB in the beginning and 81.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.59ms. Allocated memory is still 136.3MB. Free memory was 81.6MB in the beginning and 75.8MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1002.35ms. Allocated memory is still 136.3MB. Free memory was 75.8MB in the beginning and 57.1MB in the end (delta: 18.7MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * TraceAbstraction took 44528.33ms. Allocated memory was 136.3MB in the beginning and 564.1MB in the end (delta: 427.8MB). Free memory was 56.4MB in the beginning and 193.5MB in the end (delta: -137.1MB). Peak memory consumption was 306.8MB. Max. memory is 16.1GB. * Witness Printer took 144.13ms. Allocated memory is still 564.1MB. Free memory was 193.5MB in the beginning and 508.2MB in the end (delta: -314.7MB). Peak memory consumption was 8.4MB. 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: 200]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.4s, OverallIterations: 17, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4338 SdHoareTripleChecker+Valid, 9.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4338 mSDsluCounter, 1850 SdHoareTripleChecker+Invalid, 7.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 178 mSDsCounter, 1498 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13580 IncrementalHoareTripleChecker+Invalid, 15078 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1498 mSolverCounterUnsat, 1672 mSDtfsCounter, 13580 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13926 GetRequests, 13847 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4632occurred in iteration=15, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 3966 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 102 NumberOfFragments, 861 HoareAnnotationTreeSize, 3 FomulaSimplifications, 4346 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 3 FomulaSimplificationsInter, 20742 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 25.6s InterpolantComputationTime, 19144 NumberOfCodeBlocks, 19144 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 24554 ConstructedInterpolants, 0 QuantifiedInterpolants, 88867 SizeOfPredicates, 5 NumberOfNonLiveVariables, 10505 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 32 InterpolantComputations, 14 PerfectInterpolantSequences, 68979/72268 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((((((8 <= a15 && a24 == 1) && a12 <= 11) && 0 < a12 + 43) || (((((a12 <= 600006 && 8 <= a15) && (((!(9 == a15) || !(1 == a24)) && (!(5 == a15) || !(2 == a24))) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0)))) && a24 == 1) && 80 < a12) && 9 <= a21)) || (a15 <= 5 && a24 == 1)) || (((((a12 <= 600006 && (((!(9 == a15) || !(1 == a24)) && (!(5 == a15) || !(2 == a24))) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0)))) && a24 == 1) && 7 <= a21) && a21 <= 7) && 0 < a12 + 43)) || (((8 <= a15 && 10 <= a21) && a24 == 1) && a12 + 43 <= 0)) || (((((8 <= a15 && (((!(9 == a15) || !(1 == a24)) && (!(5 == a15) || !(2 == a24))) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0)))) && a24 == 1) && 12849 <= a12) && 0 < ((a12 * 10 + 2779120) / 9 * -1 + 437300) / 10 + 44) && (0 < ((a12 * 10 + 2779120) / 9 * -1 + 437300) / 10 + 43 || !(0 == (a12 * 10 + 2779120) / 9 * 9 % 10)))) || (((((!(5 == a15) && a15 <= 8) && a24 == 1) && 12849 <= a12) && 0 < ((a12 * 10 + 2779120) / 9 * -1 + 437300) / 10 + 44) && (0 < ((a12 * 10 + 2779120) / 9 * -1 + 437300) / 10 + 43 || !(0 == (a12 * 10 + 2779120) / 9 * 9 % 10)))) || (a12 <= 600006 && ((((!(5 == a15) && 7 <= a15) && a15 <= 8) && a24 == 1) || ((a24 == 1 && a15 <= 8) && !(a21 == 6))))) || ((((!(5 == a15) && a15 <= 8) && a24 == 1) && a12 <= 76) && 0 < a12 + 43)) || (a15 <= 5 && a12 <= 11)) || (((((a12 <= 600006 && 8 <= a15) && (((!(9 == a15) || !(1 == a24)) && (!(5 == a15) || !(2 == a24))) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0)))) && a24 == 1) && 8 <= a21) && a21 <= 8)) || ((((8 <= a15 && a24 == 1) && 8 <= a21) && a12 <= 76) && a21 <= 8) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((((((8 <= a15 && a24 == 1) && a12 <= 11) && 0 < a12 + 43) || (((((a12 <= 600006 && 8 <= a15) && (((!(9 == a15) || !(1 == a24)) && (!(5 == a15) || !(2 == a24))) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0)))) && a24 == 1) && 80 < a12) && 9 <= a21)) || (a15 <= 5 && a24 == 1)) || (((((a12 <= 600006 && (((!(9 == a15) || !(1 == a24)) && (!(5 == a15) || !(2 == a24))) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0)))) && a24 == 1) && 7 <= a21) && a21 <= 7) && 0 < a12 + 43)) || (((8 <= a15 && 10 <= a21) && a24 == 1) && a12 + 43 <= 0)) || (((((8 <= a15 && (((!(9 == a15) || !(1 == a24)) && (!(5 == a15) || !(2 == a24))) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0)))) && a24 == 1) && 12849 <= a12) && 0 < ((a12 * 10 + 2779120) / 9 * -1 + 437300) / 10 + 44) && (0 < ((a12 * 10 + 2779120) / 9 * -1 + 437300) / 10 + 43 || !(0 == (a12 * 10 + 2779120) / 9 * 9 % 10)))) || (((((!(5 == a15) && a15 <= 8) && a24 == 1) && 12849 <= a12) && 0 < ((a12 * 10 + 2779120) / 9 * -1 + 437300) / 10 + 44) && (0 < ((a12 * 10 + 2779120) / 9 * -1 + 437300) / 10 + 43 || !(0 == (a12 * 10 + 2779120) / 9 * 9 % 10)))) || (a12 <= 600006 && ((((!(5 == a15) && 7 <= a15) && a15 <= 8) && a24 == 1) || ((a24 == 1 && a15 <= 8) && !(a21 == 6))))) || ((((!(5 == a15) && a15 <= 8) && a24 == 1) && a12 <= 76) && 0 < a12 + 43)) || (a15 <= 5 && a12 <= 11)) || (((((a12 <= 600006 && 8 <= a15) && (((!(9 == a15) || !(1 == a24)) && (!(5 == a15) || !(2 == a24))) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0)))) && a24 == 1) && 8 <= a21) && a21 <= 8)) || ((((8 <= a15 && a24 == 1) && 8 <= a21) && a12 <= 76) && a21 <= 8) RESULT: Ultimate proved your program to be correct! [2021-12-15 09:48:05,033 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