./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label02.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 30f62f9fddfecd916215dd8f1b75b140359bb989ba38a829add2eea4e4b271dc --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 09:34:57,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 09:34:57,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 09:34:57,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 09:34:57,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 09:34:57,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 09:34:57,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 09:34:57,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 09:34:57,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 09:34:57,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 09:34:57,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 09:34:57,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 09:34:57,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 09:34:57,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 09:34:57,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 09:34:57,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 09:34:57,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 09:34:57,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 09:34:57,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 09:34:57,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 09:34:57,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 09:34:57,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 09:34:57,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 09:34:57,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 09:34:57,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 09:34:57,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 09:34:57,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 09:34:57,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 09:34:57,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 09:34:57,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 09:34:57,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 09:34:57,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 09:34:57,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 09:34:57,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 09:34:57,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 09:34:57,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 09:34:57,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 09:34:57,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 09:34:57,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 09:34:57,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 09:34:57,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 09:34:57,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 09:34:57,572 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 09:34:57,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 09:34:57,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 09:34:57,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 09:34:57,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 09:34:57,575 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 09:34:57,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 09:34:57,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 09:34:57,575 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 09:34:57,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 09:34:57,576 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 09:34:57,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 09:34:57,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 09:34:57,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 09:34:57,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 09:34:57,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 09:34:57,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 09:34:57,577 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 09:34:57,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 09:34:57,578 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 09:34:57,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 09:34:57,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 09:34:57,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 09:34:57,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 09:34:57,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:34:57,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 09:34:57,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 09:34:57,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 09:34:57,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 09:34:57,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 09:34:57,579 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 09:34:57,579 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 09:34:57,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 09:34:57,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 09:34:57,580 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f62f9fddfecd916215dd8f1b75b140359bb989ba38a829add2eea4e4b271dc [2021-12-15 09:34:57,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 09:34:57,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 09:34:57,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 09:34:57,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 09:34:57,813 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 09:34:57,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label02.c [2021-12-15 09:34:57,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dc255637/817001eed58149bd8ec3a8ee9dafd13d/FLAG37df8644e [2021-12-15 09:34:58,332 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 09:34:58,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label02.c [2021-12-15 09:34:58,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dc255637/817001eed58149bd8ec3a8ee9dafd13d/FLAG37df8644e [2021-12-15 09:34:58,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dc255637/817001eed58149bd8ec3a8ee9dafd13d [2021-12-15 09:34:58,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 09:34:58,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 09:34:58,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 09:34:58,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 09:34:58,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 09:34:58,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:34:58" (1/1) ... [2021-12-15 09:34:58,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c86d120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:58, skipping insertion in model container [2021-12-15 09:34:58,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:34:58" (1/1) ... [2021-12-15 09:34:58,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 09:34:58,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 09:34:58,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label02.c[7865,7878] [2021-12-15 09:34:59,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:34:59,113 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 09:34:59,145 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label02.c[7865,7878] [2021-12-15 09:34:59,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:34:59,250 INFO L208 MainTranslator]: Completed translation [2021-12-15 09:34:59,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:59 WrapperNode [2021-12-15 09:34:59,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 09:34:59,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 09:34:59,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 09:34:59,252 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 09:34:59,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:59" (1/1) ... [2021-12-15 09:34:59,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:59" (1/1) ... [2021-12-15 09:34:59,352 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-12-15 09:34:59,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 09:34:59,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 09:34:59,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 09:34:59,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 09:34:59,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:59" (1/1) ... [2021-12-15 09:34:59,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:59" (1/1) ... [2021-12-15 09:34:59,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:59" (1/1) ... [2021-12-15 09:34:59,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:59" (1/1) ... [2021-12-15 09:34:59,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:59" (1/1) ... [2021-12-15 09:34:59,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:59" (1/1) ... [2021-12-15 09:34:59,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:59" (1/1) ... [2021-12-15 09:34:59,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 09:34:59,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 09:34:59,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 09:34:59,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 09:34:59,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:59" (1/1) ... [2021-12-15 09:34:59,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:34:59,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:34:59,476 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 09:34:59,532 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 09:34:59,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 09:34:59,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 09:34:59,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 09:34:59,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 09:34:59,590 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 09:34:59,591 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 09:35:00,679 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 09:35:00,686 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 09:35:00,686 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 09:35:00,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:35:00 BoogieIcfgContainer [2021-12-15 09:35:00,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 09:35:00,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 09:35:00,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 09:35:00,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 09:35:00,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:34:58" (1/3) ... [2021-12-15 09:35:00,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d9baf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:35:00, skipping insertion in model container [2021-12-15 09:35:00,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:34:59" (2/3) ... [2021-12-15 09:35:00,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d9baf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:35:00, skipping insertion in model container [2021-12-15 09:35:00,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:35:00" (3/3) ... [2021-12-15 09:35:00,694 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label02.c [2021-12-15 09:35:00,697 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 09:35:00,697 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 09:35:00,729 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 09:35:00,733 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 09:35:00,733 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 09:35:00,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:35:00,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-15 09:35:00,752 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:00,752 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] [2021-12-15 09:35:00,753 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:00,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:00,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1425694346, now seen corresponding path program 1 times [2021-12-15 09:35:00,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:00,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546541545] [2021-12-15 09:35:00,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:00,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:00,918 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 09:35:00,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:00,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546541545] [2021-12-15 09:35:00,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546541545] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:00,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:00,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:35:00,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650943804] [2021-12-15 09:35:00,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:00,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:00,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:00,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:00,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:00,945 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 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 09:35:01,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:01,743 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2021-12-15 09:35:01,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:01,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2021-12-15 09:35:01,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:01,754 INFO L225 Difference]: With dead ends: 761 [2021-12-15 09:35:01,755 INFO L226 Difference]: Without dead ends: 413 [2021-12-15 09:35:01,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:01,760 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 174 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:01,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 222 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 09:35:01,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-12-15 09:35:01,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-12-15 09:35:01,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:35:01,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2021-12-15 09:35:01,810 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 54 [2021-12-15 09:35:01,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:01,810 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2021-12-15 09:35:01,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 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 09:35:01,811 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2021-12-15 09:35:01,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-15 09:35:01,813 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:01,814 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, 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 09:35:01,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 09:35:01,814 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:01,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:01,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1780692066, now seen corresponding path program 1 times [2021-12-15 09:35:01,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:01,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224036059] [2021-12-15 09:35:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:01,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:35:01,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:01,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224036059] [2021-12-15 09:35:01,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224036059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:01,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:01,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:35:01,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758692091] [2021-12-15 09:35:01,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:01,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:01,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:01,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:01,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:01,896 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 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 09:35:02,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:02,542 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2021-12-15 09:35:02,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:02,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2021-12-15 09:35:02,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:02,545 INFO L225 Difference]: With dead ends: 1211 [2021-12-15 09:35:02,545 INFO L226 Difference]: Without dead ends: 800 [2021-12-15 09:35:02,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:02,547 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 142 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:02,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 120 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:35:02,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-12-15 09:35:02,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2021-12-15 09:35:02,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3743654822335025) internal successors, (1083), 788 states have internal predecessors, (1083), 0 states have call successors, (0), 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 09:35:02,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2021-12-15 09:35:02,569 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 122 [2021-12-15 09:35:02,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:02,569 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2021-12-15 09:35:02,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 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 09:35:02,569 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2021-12-15 09:35:02,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-15 09:35:02,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:02,571 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, 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 09:35:02,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 09:35:02,572 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:02,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:02,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1746590275, now seen corresponding path program 1 times [2021-12-15 09:35:02,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:02,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441102397] [2021-12-15 09:35:02,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:02,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:02,682 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:35:02,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:02,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441102397] [2021-12-15 09:35:02,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441102397] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:02,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:02,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:02,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180382493] [2021-12-15 09:35:02,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:02,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:35:02,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:02,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:35:02,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:35:02,684 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 09:35:03,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:03,821 INFO L93 Difference]: Finished difference Result 2507 states and 3426 transitions. [2021-12-15 09:35:03,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:35:03,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2021-12-15 09:35:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:03,840 INFO L225 Difference]: With dead ends: 2507 [2021-12-15 09:35:03,840 INFO L226 Difference]: Without dead ends: 1720 [2021-12-15 09:35:03,841 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 09:35:03,842 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 485 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:03,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 220 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-15 09:35:03,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2021-12-15 09:35:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1714. [2021-12-15 09:35:03,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1713 states have (on average 1.2265032107413893) internal successors, (2101), 1713 states have internal predecessors, (2101), 0 states have call successors, (0), 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 09:35:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2101 transitions. [2021-12-15 09:35:03,871 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2101 transitions. Word has length 124 [2021-12-15 09:35:03,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:03,872 INFO L470 AbstractCegarLoop]: Abstraction has 1714 states and 2101 transitions. [2021-12-15 09:35:03,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 09:35:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2101 transitions. [2021-12-15 09:35:03,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-15 09:35:03,873 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:03,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:03,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 09:35:03,874 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:03,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:03,875 INFO L85 PathProgramCache]: Analyzing trace with hash -728761857, now seen corresponding path program 1 times [2021-12-15 09:35:03,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:03,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366875260] [2021-12-15 09:35:03,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:03,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:35:03,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:03,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366875260] [2021-12-15 09:35:03,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366875260] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:03,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:03,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:03,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766882298] [2021-12-15 09:35:03,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:03,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:03,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:03,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:03,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:03,958 INFO L87 Difference]: Start difference. First operand 1714 states and 2101 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 09:35:04,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:04,523 INFO L93 Difference]: Finished difference Result 4005 states and 5048 transitions. [2021-12-15 09:35:04,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:04,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2021-12-15 09:35:04,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:04,531 INFO L225 Difference]: With dead ends: 4005 [2021-12-15 09:35:04,531 INFO L226 Difference]: Without dead ends: 2477 [2021-12-15 09:35:04,533 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 09:35:04,534 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 181 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:04,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 321 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:35:04,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2021-12-15 09:35:04,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 2474. [2021-12-15 09:35:04,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2473 states have (on average 1.2308936514355033) internal successors, (3044), 2473 states have internal predecessors, (3044), 0 states have call successors, (0), 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 09:35:04,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3044 transitions. [2021-12-15 09:35:04,569 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3044 transitions. Word has length 181 [2021-12-15 09:35:04,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:04,570 INFO L470 AbstractCegarLoop]: Abstraction has 2474 states and 3044 transitions. [2021-12-15 09:35:04,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 09:35:04,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3044 transitions. [2021-12-15 09:35:04,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-12-15 09:35:04,572 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:04,573 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:04,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 09:35:04,573 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:04,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:04,573 INFO L85 PathProgramCache]: Analyzing trace with hash -845047207, now seen corresponding path program 1 times [2021-12-15 09:35:04,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:04,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131289514] [2021-12-15 09:35:04,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:04,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:04,664 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-15 09:35:04,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:04,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131289514] [2021-12-15 09:35:04,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131289514] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:04,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:04,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:04,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387292204] [2021-12-15 09:35:04,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:04,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:04,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:04,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:04,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:04,667 INFO L87 Difference]: Start difference. First operand 2474 states and 3044 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 09:35:05,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:05,286 INFO L93 Difference]: Finished difference Result 5878 states and 7341 transitions. [2021-12-15 09:35:05,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:05,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 09:35:05,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:05,295 INFO L225 Difference]: With dead ends: 5878 [2021-12-15 09:35:05,296 INFO L226 Difference]: Without dead ends: 3590 [2021-12-15 09:35:05,298 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 09:35:05,299 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 143 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:05,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 392 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:35:05,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2021-12-15 09:35:05,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3579. [2021-12-15 09:35:05,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3579 states, 3578 states have (on average 1.1998323085522637) internal successors, (4293), 3578 states have internal predecessors, (4293), 0 states have call successors, (0), 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 09:35:05,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 4293 transitions. [2021-12-15 09:35:05,345 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 4293 transitions. Word has length 236 [2021-12-15 09:35:05,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:05,346 INFO L470 AbstractCegarLoop]: Abstraction has 3579 states and 4293 transitions. [2021-12-15 09:35:05,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 09:35:05,346 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 4293 transitions. [2021-12-15 09:35:05,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-12-15 09:35:05,348 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:05,349 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:05,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 09:35:05,349 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:05,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:05,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1327280490, now seen corresponding path program 1 times [2021-12-15 09:35:05,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:05,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793141774] [2021-12-15 09:35:05,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:05,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:05,528 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 25 proven. 78 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-15 09:35:05,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:05,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793141774] [2021-12-15 09:35:05,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793141774] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:35:05,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20379098] [2021-12-15 09:35:05,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:05,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:35:05,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:35:05,530 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 09:35:05,575 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 09:35:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:05,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 09:35:05,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:35:05,984 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-15 09:35:05,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:35:05,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20379098] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:05,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:35:05,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 09:35:05,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273003542] [2021-12-15 09:35:05,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:05,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:05,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:05,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:05,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:35:05,987 INFO L87 Difference]: Start difference. First operand 3579 states and 4293 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 09:35:06,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:06,550 INFO L93 Difference]: Finished difference Result 8081 states and 9981 transitions. [2021-12-15 09:35:06,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:06,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 242 [2021-12-15 09:35:06,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:06,589 INFO L225 Difference]: With dead ends: 8081 [2021-12-15 09:35:06,589 INFO L226 Difference]: Without dead ends: 4688 [2021-12-15 09:35:06,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:35:06,594 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 176 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:06,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 270 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:35:06,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4688 states. [2021-12-15 09:35:06,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4688 to 4685. [2021-12-15 09:35:06,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4685 states, 4684 states have (on average 1.2203245089666952) internal successors, (5716), 4684 states have internal predecessors, (5716), 0 states have call successors, (0), 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 09:35:06,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4685 states to 4685 states and 5716 transitions. [2021-12-15 09:35:06,730 INFO L78 Accepts]: Start accepts. Automaton has 4685 states and 5716 transitions. Word has length 242 [2021-12-15 09:35:06,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:06,731 INFO L470 AbstractCegarLoop]: Abstraction has 4685 states and 5716 transitions. [2021-12-15 09:35:06,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 09:35:06,731 INFO L276 IsEmpty]: Start isEmpty. Operand 4685 states and 5716 transitions. [2021-12-15 09:35:06,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-12-15 09:35:06,734 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:06,735 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:06,770 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 09:35:06,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-15 09:35:06,936 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:06,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:06,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1752037152, now seen corresponding path program 1 times [2021-12-15 09:35:06,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:06,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039510083] [2021-12-15 09:35:06,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:06,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:35:07,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:07,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039510083] [2021-12-15 09:35:07,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039510083] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:07,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:07,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:07,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266718569] [2021-12-15 09:35:07,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:07,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:35:07,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:07,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:35:07,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:35:07,135 INFO L87 Difference]: Start difference. First operand 4685 states and 5716 transitions. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:35:08,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:08,158 INFO L93 Difference]: Finished difference Result 14010 states and 17392 transitions. [2021-12-15 09:35:08,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:35:08,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 281 [2021-12-15 09:35:08,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:08,182 INFO L225 Difference]: With dead ends: 14010 [2021-12-15 09:35:08,183 INFO L226 Difference]: Without dead ends: 9511 [2021-12-15 09:35:08,190 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 09:35:08,190 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 264 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:08,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 96 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 09:35:08,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9511 states. [2021-12-15 09:35:08,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9511 to 8955. [2021-12-15 09:35:08,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8955 states, 8954 states have (on average 1.2283895465713648) internal successors, (10999), 8954 states have internal predecessors, (10999), 0 states have call successors, (0), 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 09:35:08,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8955 states to 8955 states and 10999 transitions. [2021-12-15 09:35:08,311 INFO L78 Accepts]: Start accepts. Automaton has 8955 states and 10999 transitions. Word has length 281 [2021-12-15 09:35:08,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:08,311 INFO L470 AbstractCegarLoop]: Abstraction has 8955 states and 10999 transitions. [2021-12-15 09:35:08,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:35:08,312 INFO L276 IsEmpty]: Start isEmpty. Operand 8955 states and 10999 transitions. [2021-12-15 09:35:08,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-12-15 09:35:08,316 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:08,317 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:08,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 09:35:08,317 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:08,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:08,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1231018706, now seen corresponding path program 1 times [2021-12-15 09:35:08,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:08,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752391511] [2021-12-15 09:35:08,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:08,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:08,386 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-15 09:35:08,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:08,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752391511] [2021-12-15 09:35:08,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752391511] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:08,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:08,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:08,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183782827] [2021-12-15 09:35:08,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:08,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:08,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:08,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:08,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:08,389 INFO L87 Difference]: Start difference. First operand 8955 states and 10999 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 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 09:35:09,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:09,127 INFO L93 Difference]: Finished difference Result 20130 states and 24985 transitions. [2021-12-15 09:35:09,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:09,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 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 290 [2021-12-15 09:35:09,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:09,162 INFO L225 Difference]: With dead ends: 20130 [2021-12-15 09:35:09,162 INFO L226 Difference]: Without dead ends: 11361 [2021-12-15 09:35:09,170 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 09:35:09,172 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 142 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:09,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 384 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:35:09,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11361 states. [2021-12-15 09:35:09,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11361 to 11346. [2021-12-15 09:35:09,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11346 states, 11345 states have (on average 1.20220361392684) internal successors, (13639), 11345 states have internal predecessors, (13639), 0 states have call successors, (0), 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 09:35:09,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11346 states to 11346 states and 13639 transitions. [2021-12-15 09:35:09,321 INFO L78 Accepts]: Start accepts. Automaton has 11346 states and 13639 transitions. Word has length 290 [2021-12-15 09:35:09,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:09,322 INFO L470 AbstractCegarLoop]: Abstraction has 11346 states and 13639 transitions. [2021-12-15 09:35:09,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 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 09:35:09,322 INFO L276 IsEmpty]: Start isEmpty. Operand 11346 states and 13639 transitions. [2021-12-15 09:35:09,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-12-15 09:35:09,330 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:09,330 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:09,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 09:35:09,331 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:09,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:09,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1130496183, now seen corresponding path program 1 times [2021-12-15 09:35:09,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:09,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770700949] [2021-12-15 09:35:09,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:09,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:09,519 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 171 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:35:09,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:09,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770700949] [2021-12-15 09:35:09,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770700949] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:35:09,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493322358] [2021-12-15 09:35:09,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:09,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:35:09,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:35:09,532 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 09:35:09,537 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 09:35:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:09,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-15 09:35:09,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:35:11,272 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 171 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:35:11,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 09:35:13,310 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 171 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:35:13,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493322358] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 09:35:13,311 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 09:35:13,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-15 09:35:13,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081175680] [2021-12-15 09:35:13,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 09:35:13,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 09:35:13,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:13,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 09:35:13,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-15 09:35:13,313 INFO L87 Difference]: Start difference. First operand 11346 states and 13639 transitions. Second operand has 8 states, 8 states have (on average 72.5) internal successors, (580), 7 states have internal predecessors, (580), 0 states have call successors, (0), 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 09:35:15,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:15,514 INFO L93 Difference]: Finished difference Result 26353 states and 31898 transitions. [2021-12-15 09:35:15,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 09:35:15,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 72.5) internal successors, (580), 7 states have internal predecessors, (580), 0 states have call successors, (0), 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 328 [2021-12-15 09:35:15,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:15,537 INFO L225 Difference]: With dead ends: 26353 [2021-12-15 09:35:15,538 INFO L226 Difference]: Without dead ends: 15747 [2021-12-15 09:35:15,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 665 GetRequests, 649 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2021-12-15 09:35:15,549 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 886 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 3043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:15,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [886 Valid, 192 Invalid, 3043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-15 09:35:15,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15747 states. [2021-12-15 09:35:15,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15747 to 12423. [2021-12-15 09:35:15,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12423 states, 12422 states have (on average 1.1687328932539043) internal successors, (14518), 12422 states have internal predecessors, (14518), 0 states have call successors, (0), 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 09:35:15,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12423 states to 12423 states and 14518 transitions. [2021-12-15 09:35:15,676 INFO L78 Accepts]: Start accepts. Automaton has 12423 states and 14518 transitions. Word has length 328 [2021-12-15 09:35:15,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:15,676 INFO L470 AbstractCegarLoop]: Abstraction has 12423 states and 14518 transitions. [2021-12-15 09:35:15,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.5) internal successors, (580), 7 states have internal predecessors, (580), 0 states have call successors, (0), 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 09:35:15,677 INFO L276 IsEmpty]: Start isEmpty. Operand 12423 states and 14518 transitions. [2021-12-15 09:35:15,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-12-15 09:35:15,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:15,686 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:15,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-15 09:35:15,902 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,SelfDestructingSolverStorable8 [2021-12-15 09:35:15,903 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:15,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:15,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1345956964, now seen corresponding path program 1 times [2021-12-15 09:35:15,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:15,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373207948] [2021-12-15 09:35:15,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:15,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:16,185 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 188 proven. 148 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-15 09:35:16,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:16,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373207948] [2021-12-15 09:35:16,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373207948] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:35:16,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037033852] [2021-12-15 09:35:16,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:16,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:35:16,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:35:16,187 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 09:35:16,203 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 09:35:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:16,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 09:35:16,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:35:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-15 09:35:16,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:35:16,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037033852] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:16,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:35:16,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-12-15 09:35:16,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25175863] [2021-12-15 09:35:16,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:16,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:16,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:16,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:16,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 09:35:16,656 INFO L87 Difference]: Start difference. First operand 12423 states and 14518 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:35:17,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:17,175 INFO L93 Difference]: Finished difference Result 23387 states and 27444 transitions. [2021-12-15 09:35:17,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:17,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 348 [2021-12-15 09:35:17,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:17,215 INFO L225 Difference]: With dead ends: 23387 [2021-12-15 09:35:17,215 INFO L226 Difference]: Without dead ends: 12440 [2021-12-15 09:35:17,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 09:35:17,225 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 105 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:17,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 327 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:35:17,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12440 states. [2021-12-15 09:35:17,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12440 to 12423. [2021-12-15 09:35:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12423 states, 12422 states have (on average 1.1421671228465626) internal successors, (14188), 12422 states have internal predecessors, (14188), 0 states have call successors, (0), 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 09:35:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12423 states to 12423 states and 14188 transitions. [2021-12-15 09:35:17,427 INFO L78 Accepts]: Start accepts. Automaton has 12423 states and 14188 transitions. Word has length 348 [2021-12-15 09:35:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:17,428 INFO L470 AbstractCegarLoop]: Abstraction has 12423 states and 14188 transitions. [2021-12-15 09:35:17,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:35:17,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12423 states and 14188 transitions. [2021-12-15 09:35:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-12-15 09:35:17,435 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:17,435 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:17,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-15 09:35:17,653 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 09:35:17,653 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:17,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:17,654 INFO L85 PathProgramCache]: Analyzing trace with hash -87231958, now seen corresponding path program 1 times [2021-12-15 09:35:17,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:17,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970009772] [2021-12-15 09:35:17,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:17,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:35:17,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:17,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970009772] [2021-12-15 09:35:17,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970009772] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:17,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:17,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:17,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459713320] [2021-12-15 09:35:17,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:17,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:17,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:17,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:17,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:17,762 INFO L87 Difference]: Start difference. First operand 12423 states and 14188 transitions. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 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 09:35:18,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:18,429 INFO L93 Difference]: Finished difference Result 29632 states and 33985 transitions. [2021-12-15 09:35:18,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:18,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2021-12-15 09:35:18,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:18,453 INFO L225 Difference]: With dead ends: 29632 [2021-12-15 09:35:18,453 INFO L226 Difference]: Without dead ends: 17947 [2021-12-15 09:35:18,464 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 09:35:18,464 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 57 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:18,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 70 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:35:18,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17947 states. [2021-12-15 09:35:18,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17947 to 17939. [2021-12-15 09:35:18,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17939 states, 17938 states have (on average 1.1359125878024305) internal successors, (20376), 17938 states have internal predecessors, (20376), 0 states have call successors, (0), 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 09:35:18,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17939 states to 17939 states and 20376 transitions. [2021-12-15 09:35:18,714 INFO L78 Accepts]: Start accepts. Automaton has 17939 states and 20376 transitions. Word has length 356 [2021-12-15 09:35:18,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:18,715 INFO L470 AbstractCegarLoop]: Abstraction has 17939 states and 20376 transitions. [2021-12-15 09:35:18,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 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 09:35:18,715 INFO L276 IsEmpty]: Start isEmpty. Operand 17939 states and 20376 transitions. [2021-12-15 09:35:18,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-12-15 09:35:18,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:18,723 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 09:35:18,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 09:35:18,723 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:18,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:18,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2000820814, now seen corresponding path program 1 times [2021-12-15 09:35:18,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:18,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039568465] [2021-12-15 09:35:18,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:18,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:18,834 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-12-15 09:35:18,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:18,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039568465] [2021-12-15 09:35:18,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039568465] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:35:18,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819548131] [2021-12-15 09:35:18,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:18,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:35:18,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:35:18,836 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 09:35:18,838 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 09:35:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:18,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 09:35:18,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:35:19,756 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-12-15 09:35:19,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 09:35:20,224 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-12-15 09:35:20,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819548131] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-15 09:35:20,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-15 09:35:20,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2021-12-15 09:35:20,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690849820] [2021-12-15 09:35:20,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:20,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:20,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:20,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:20,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-15 09:35:20,229 INFO L87 Difference]: Start difference. First operand 17939 states and 20376 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 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 09:35:20,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:20,913 INFO L93 Difference]: Finished difference Result 36052 states and 40961 transitions. [2021-12-15 09:35:20,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:20,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 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 359 [2021-12-15 09:35:20,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:20,952 INFO L225 Difference]: With dead ends: 36052 [2021-12-15 09:35:20,975 INFO L226 Difference]: Without dead ends: 20325 [2021-12-15 09:35:20,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 719 GetRequests, 715 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-15 09:35:20,990 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 179 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:20,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 110 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:35:21,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20325 states. [2021-12-15 09:35:21,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20325 to 18301. [2021-12-15 09:35:21,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18301 states, 18300 states have (on average 1.1195081967213114) internal successors, (20487), 18300 states have internal predecessors, (20487), 0 states have call successors, (0), 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 09:35:21,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18301 states to 18301 states and 20487 transitions. [2021-12-15 09:35:21,461 INFO L78 Accepts]: Start accepts. Automaton has 18301 states and 20487 transitions. Word has length 359 [2021-12-15 09:35:21,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:21,462 INFO L470 AbstractCegarLoop]: Abstraction has 18301 states and 20487 transitions. [2021-12-15 09:35:21,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 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 09:35:21,462 INFO L276 IsEmpty]: Start isEmpty. Operand 18301 states and 20487 transitions. [2021-12-15 09:35:21,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-12-15 09:35:21,473 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:21,473 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-15 09:35:21,505 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 09:35:21,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:35:21,690 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:21,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:21,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1094680271, now seen corresponding path program 1 times [2021-12-15 09:35:21,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:21,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435471943] [2021-12-15 09:35:21,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:21,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:21,778 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-15 09:35:21,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:21,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435471943] [2021-12-15 09:35:21,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435471943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:21,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:21,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:21,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738628299] [2021-12-15 09:35:21,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:21,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:21,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:21,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:21,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:21,780 INFO L87 Difference]: Start difference. First operand 18301 states and 20487 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 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 09:35:22,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:22,294 INFO L93 Difference]: Finished difference Result 31974 states and 35632 transitions. [2021-12-15 09:35:22,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:22,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 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 390 [2021-12-15 09:35:22,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:22,311 INFO L225 Difference]: With dead ends: 31974 [2021-12-15 09:35:22,311 INFO L226 Difference]: Without dead ends: 15885 [2021-12-15 09:35:22,324 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 09:35:22,325 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 135 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:22,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 134 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:35:22,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15885 states. [2021-12-15 09:35:22,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15885 to 15516. [2021-12-15 09:35:22,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15516 states, 15515 states have (on average 1.1038349983886562) internal successors, (17126), 15515 states have internal predecessors, (17126), 0 states have call successors, (0), 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 09:35:22,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15516 states to 15516 states and 17126 transitions. [2021-12-15 09:35:22,601 INFO L78 Accepts]: Start accepts. Automaton has 15516 states and 17126 transitions. Word has length 390 [2021-12-15 09:35:22,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:22,602 INFO L470 AbstractCegarLoop]: Abstraction has 15516 states and 17126 transitions. [2021-12-15 09:35:22,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 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 09:35:22,602 INFO L276 IsEmpty]: Start isEmpty. Operand 15516 states and 17126 transitions. [2021-12-15 09:35:22,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-12-15 09:35:22,617 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:22,617 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, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:22,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 09:35:22,618 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:22,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:22,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1480841082, now seen corresponding path program 1 times [2021-12-15 09:35:22,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:22,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180635564] [2021-12-15 09:35:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:22,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:22,773 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2021-12-15 09:35:22,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:22,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180635564] [2021-12-15 09:35:22,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180635564] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:22,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:22,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:22,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99359947] [2021-12-15 09:35:22,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:22,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:22,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:22,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:22,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:22,776 INFO L87 Difference]: Start difference. First operand 15516 states and 17126 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 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 09:35:23,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:23,310 INFO L93 Difference]: Finished difference Result 29374 states and 32432 transitions. [2021-12-15 09:35:23,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:23,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 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 480 [2021-12-15 09:35:23,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:23,327 INFO L225 Difference]: With dead ends: 29374 [2021-12-15 09:35:23,327 INFO L226 Difference]: Without dead ends: 16070 [2021-12-15 09:35:23,337 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 09:35:23,338 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 89 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:23,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 173 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:35:23,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16070 states. [2021-12-15 09:35:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16070 to 15514. [2021-12-15 09:35:23,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15514 states, 15513 states have (on average 1.1026236060078645) internal successors, (17105), 15513 states have internal predecessors, (17105), 0 states have call successors, (0), 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 09:35:23,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15514 states to 15514 states and 17105 transitions. [2021-12-15 09:35:23,568 INFO L78 Accepts]: Start accepts. Automaton has 15514 states and 17105 transitions. Word has length 480 [2021-12-15 09:35:23,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:23,569 INFO L470 AbstractCegarLoop]: Abstraction has 15514 states and 17105 transitions. [2021-12-15 09:35:23,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 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 09:35:23,569 INFO L276 IsEmpty]: Start isEmpty. Operand 15514 states and 17105 transitions. [2021-12-15 09:35:23,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-12-15 09:35:23,584 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:23,585 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, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:23,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-15 09:35:23,585 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:23,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:23,586 INFO L85 PathProgramCache]: Analyzing trace with hash -380186503, now seen corresponding path program 1 times [2021-12-15 09:35:23,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:23,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978111266] [2021-12-15 09:35:23,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:23,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:23,718 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2021-12-15 09:35:23,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:23,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978111266] [2021-12-15 09:35:23,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978111266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:23,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:23,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 09:35:23,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708743753] [2021-12-15 09:35:23,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:23,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:35:23,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:23,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:35:23,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:35:23,721 INFO L87 Difference]: Start difference. First operand 15514 states and 17105 transitions. Second operand has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 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 09:35:24,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:24,613 INFO L93 Difference]: Finished difference Result 30289 states and 33411 transitions. [2021-12-15 09:35:24,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:35:24,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 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 481 [2021-12-15 09:35:24,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:24,629 INFO L225 Difference]: With dead ends: 30289 [2021-12-15 09:35:24,629 INFO L226 Difference]: Without dead ends: 15697 [2021-12-15 09:35:24,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:35:24,640 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 287 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:24,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 148 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 09:35:24,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15697 states. [2021-12-15 09:35:24,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15697 to 15513. [2021-12-15 09:35:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15513 states, 15512 states have (on average 1.092509025270758) internal successors, (16947), 15512 states have internal predecessors, (16947), 0 states have call successors, (0), 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 09:35:24,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15513 states to 15513 states and 16947 transitions. [2021-12-15 09:35:24,884 INFO L78 Accepts]: Start accepts. Automaton has 15513 states and 16947 transitions. Word has length 481 [2021-12-15 09:35:24,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:24,884 INFO L470 AbstractCegarLoop]: Abstraction has 15513 states and 16947 transitions. [2021-12-15 09:35:24,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 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 09:35:24,884 INFO L276 IsEmpty]: Start isEmpty. Operand 15513 states and 16947 transitions. [2021-12-15 09:35:24,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2021-12-15 09:35:24,900 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:24,900 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:24,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 09:35:24,900 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:24,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:24,901 INFO L85 PathProgramCache]: Analyzing trace with hash -914071402, now seen corresponding path program 1 times [2021-12-15 09:35:24,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:24,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201497657] [2021-12-15 09:35:24,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:24,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:25,101 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 578 proven. 133 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-15 09:35:25,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:25,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201497657] [2021-12-15 09:35:25,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201497657] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:35:25,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673295522] [2021-12-15 09:35:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:25,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:35:25,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:35:25,103 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 09:35:25,105 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 09:35:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:25,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 09:35:25,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:35:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 659 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-12-15 09:35:25,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:35:25,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673295522] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:25,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:35:25,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-15 09:35:25,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903086277] [2021-12-15 09:35:25,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:25,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:25,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:25,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:25,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-15 09:35:25,945 INFO L87 Difference]: Start difference. First operand 15513 states and 16947 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 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 09:35:26,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:26,567 INFO L93 Difference]: Finished difference Result 30667 states and 33532 transitions. [2021-12-15 09:35:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:26,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 518 [2021-12-15 09:35:26,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:26,586 INFO L225 Difference]: With dead ends: 30667 [2021-12-15 09:35:26,586 INFO L226 Difference]: Without dead ends: 17366 [2021-12-15 09:35:26,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-15 09:35:26,610 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 95 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:26,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 325 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:35:26,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17366 states. [2021-12-15 09:35:26,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17366 to 15329. [2021-12-15 09:35:26,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15329 states, 15328 states have (on average 1.0908794363256784) internal successors, (16721), 15328 states have internal predecessors, (16721), 0 states have call successors, (0), 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 09:35:26,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15329 states to 15329 states and 16721 transitions. [2021-12-15 09:35:26,775 INFO L78 Accepts]: Start accepts. Automaton has 15329 states and 16721 transitions. Word has length 518 [2021-12-15 09:35:26,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:26,775 INFO L470 AbstractCegarLoop]: Abstraction has 15329 states and 16721 transitions. [2021-12-15 09:35:26,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 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 09:35:26,776 INFO L276 IsEmpty]: Start isEmpty. Operand 15329 states and 16721 transitions. [2021-12-15 09:35:26,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2021-12-15 09:35:26,789 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:26,790 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:26,807 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 09:35:27,007 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,SelfDestructingSolverStorable15 [2021-12-15 09:35:27,008 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:27,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:27,008 INFO L85 PathProgramCache]: Analyzing trace with hash -866376607, now seen corresponding path program 1 times [2021-12-15 09:35:27,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:27,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651542740] [2021-12-15 09:35:27,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:27,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:27,150 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 506 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2021-12-15 09:35:27,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:27,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651542740] [2021-12-15 09:35:27,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651542740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:27,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:27,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:27,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138305898] [2021-12-15 09:35:27,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:27,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:27,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:27,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:27,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:27,152 INFO L87 Difference]: Start difference. First operand 15329 states and 16721 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 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 09:35:27,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:27,866 INFO L93 Difference]: Finished difference Result 30837 states and 33615 transitions. [2021-12-15 09:35:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:27,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 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 560 [2021-12-15 09:35:27,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:27,883 INFO L225 Difference]: With dead ends: 30837 [2021-12-15 09:35:27,884 INFO L226 Difference]: Without dead ends: 17536 [2021-12-15 09:35:27,892 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 09:35:27,893 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 98 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:27,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 341 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:35:27,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17536 states. [2021-12-15 09:35:28,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17536 to 15136. [2021-12-15 09:35:28,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15136 states, 15135 states have (on average 1.087677568549719) internal successors, (16462), 15135 states have internal predecessors, (16462), 0 states have call successors, (0), 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 09:35:28,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15136 states to 15136 states and 16462 transitions. [2021-12-15 09:35:28,045 INFO L78 Accepts]: Start accepts. Automaton has 15136 states and 16462 transitions. Word has length 560 [2021-12-15 09:35:28,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:28,045 INFO L470 AbstractCegarLoop]: Abstraction has 15136 states and 16462 transitions. [2021-12-15 09:35:28,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 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 09:35:28,047 INFO L276 IsEmpty]: Start isEmpty. Operand 15136 states and 16462 transitions. [2021-12-15 09:35:28,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2021-12-15 09:35:28,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:28,063 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:28,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 09:35:28,063 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:28,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:28,064 INFO L85 PathProgramCache]: Analyzing trace with hash 978702432, now seen corresponding path program 1 times [2021-12-15 09:35:28,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:28,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416055047] [2021-12-15 09:35:28,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:28,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:28,192 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 659 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-15 09:35:28,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:28,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416055047] [2021-12-15 09:35:28,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416055047] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:28,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:28,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:28,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16762674] [2021-12-15 09:35:28,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:28,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:28,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:28,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:28,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:28,195 INFO L87 Difference]: Start difference. First operand 15136 states and 16462 transitions. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:35:28,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:28,788 INFO L93 Difference]: Finished difference Result 32113 states and 34995 transitions. [2021-12-15 09:35:28,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:28,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 572 [2021-12-15 09:35:28,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:28,805 INFO L225 Difference]: With dead ends: 32113 [2021-12-15 09:35:28,806 INFO L226 Difference]: Without dead ends: 17899 [2021-12-15 09:35:28,815 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 09:35:28,815 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 120 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:28,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 72 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:35:28,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17899 states. [2021-12-15 09:35:29,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17899 to 14952. [2021-12-15 09:35:29,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14952 states, 14951 states have (on average 1.087151361112969) internal successors, (16254), 14951 states have internal predecessors, (16254), 0 states have call successors, (0), 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 09:35:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14952 states to 14952 states and 16254 transitions. [2021-12-15 09:35:29,077 INFO L78 Accepts]: Start accepts. Automaton has 14952 states and 16254 transitions. Word has length 572 [2021-12-15 09:35:29,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:29,077 INFO L470 AbstractCegarLoop]: Abstraction has 14952 states and 16254 transitions. [2021-12-15 09:35:29,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:35:29,078 INFO L276 IsEmpty]: Start isEmpty. Operand 14952 states and 16254 transitions. [2021-12-15 09:35:29,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2021-12-15 09:35:29,096 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:29,096 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:29,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 09:35:29,096 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:29,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:29,098 INFO L85 PathProgramCache]: Analyzing trace with hash 47691538, now seen corresponding path program 1 times [2021-12-15 09:35:29,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:29,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543712503] [2021-12-15 09:35:29,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:29,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:29,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1718 backedges. 1189 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2021-12-15 09:35:29,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:29,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543712503] [2021-12-15 09:35:29,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543712503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:29,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:29,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:29,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556518621] [2021-12-15 09:35:29,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:29,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:35:29,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:29,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:35:29,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:35:29,301 INFO L87 Difference]: Start difference. First operand 14952 states and 16254 transitions. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 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 09:35:30,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:30,249 INFO L93 Difference]: Finished difference Result 29543 states and 32090 transitions. [2021-12-15 09:35:30,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:35:30,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 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 682 [2021-12-15 09:35:30,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:30,266 INFO L225 Difference]: With dead ends: 29543 [2021-12-15 09:35:30,266 INFO L226 Difference]: Without dead ends: 16618 [2021-12-15 09:35:30,275 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 09:35:30,276 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 231 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:30,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 65 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 09:35:30,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16618 states. [2021-12-15 09:35:30,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16618 to 13848. [2021-12-15 09:35:30,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13848 states, 13847 states have (on average 1.0879612912544234) internal successors, (15065), 13847 states have internal predecessors, (15065), 0 states have call successors, (0), 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 09:35:30,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13848 states to 13848 states and 15065 transitions. [2021-12-15 09:35:30,449 INFO L78 Accepts]: Start accepts. Automaton has 13848 states and 15065 transitions. Word has length 682 [2021-12-15 09:35:30,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:30,450 INFO L470 AbstractCegarLoop]: Abstraction has 13848 states and 15065 transitions. [2021-12-15 09:35:30,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 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 09:35:30,450 INFO L276 IsEmpty]: Start isEmpty. Operand 13848 states and 15065 transitions. [2021-12-15 09:35:30,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2021-12-15 09:35:30,475 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:30,475 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:30,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-15 09:35:30,476 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:30,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:30,476 INFO L85 PathProgramCache]: Analyzing trace with hash 542249316, now seen corresponding path program 1 times [2021-12-15 09:35:30,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:30,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069254907] [2021-12-15 09:35:30,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:30,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 1107 proven. 336 refuted. 0 times theorem prover too weak. 919 trivial. 0 not checked. [2021-12-15 09:35:30,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:30,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069254907] [2021-12-15 09:35:30,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069254907] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:35:30,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323264284] [2021-12-15 09:35:30,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:30,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:35:30,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:35:30,748 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 09:35:30,749 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 09:35:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:30,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-15 09:35:30,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:35:32,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 1429 proven. 380 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-12-15 09:35:32,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 09:35:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 1809 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-12-15 09:35:33,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323264284] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-15 09:35:33,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-15 09:35:33,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 11 [2021-12-15 09:35:33,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356847571] [2021-12-15 09:35:33,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:33,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 09:35:33,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:33,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 09:35:33,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-12-15 09:35:33,804 INFO L87 Difference]: Start difference. First operand 13848 states and 15065 transitions. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 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 09:35:35,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:35,051 INFO L93 Difference]: Finished difference Result 30827 states and 33562 transitions. [2021-12-15 09:35:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:35:35,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 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 788 [2021-12-15 09:35:35,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:35,067 INFO L225 Difference]: With dead ends: 30827 [2021-12-15 09:35:35,068 INFO L226 Difference]: Without dead ends: 19191 [2021-12-15 09:35:35,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1580 GetRequests, 1570 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-12-15 09:35:35,076 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 336 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:35,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 68 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-15 09:35:35,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19191 states. [2021-12-15 09:35:35,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19191 to 12928. [2021-12-15 09:35:35,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12928 states, 12927 states have (on average 1.0881875145045254) internal successors, (14067), 12927 states have internal predecessors, (14067), 0 states have call successors, (0), 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 09:35:35,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12928 states to 12928 states and 14067 transitions. [2021-12-15 09:35:35,215 INFO L78 Accepts]: Start accepts. Automaton has 12928 states and 14067 transitions. Word has length 788 [2021-12-15 09:35:35,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:35,215 INFO L470 AbstractCegarLoop]: Abstraction has 12928 states and 14067 transitions. [2021-12-15 09:35:35,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 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 09:35:35,215 INFO L276 IsEmpty]: Start isEmpty. Operand 12928 states and 14067 transitions. [2021-12-15 09:35:35,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 948 [2021-12-15 09:35:35,229 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:35,229 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:35,254 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 09:35:35,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:35:35,457 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:35,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:35,457 INFO L85 PathProgramCache]: Analyzing trace with hash 807444898, now seen corresponding path program 1 times [2021-12-15 09:35:35,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:35,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067915319] [2021-12-15 09:35:35,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:35,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 2045 proven. 0 refuted. 0 times theorem prover too weak. 1154 trivial. 0 not checked. [2021-12-15 09:35:35,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:35,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067915319] [2021-12-15 09:35:35,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067915319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:35,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:35,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:35,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128748537] [2021-12-15 09:35:35,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:35,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:35,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:35,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:35,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:35,636 INFO L87 Difference]: Start difference. First operand 12928 states and 14067 transitions. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 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 09:35:36,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:36,198 INFO L93 Difference]: Finished difference Result 27510 states and 29926 transitions. [2021-12-15 09:35:36,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:36,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 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 947 [2021-12-15 09:35:36,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:36,213 INFO L225 Difference]: With dead ends: 27510 [2021-12-15 09:35:36,214 INFO L226 Difference]: Without dead ends: 14584 [2021-12-15 09:35:36,222 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 09:35:36,223 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 132 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:36,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 109 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:35:36,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14584 states. [2021-12-15 09:35:36,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14584 to 13296. [2021-12-15 09:35:36,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13296 states, 13295 states have (on average 1.081684843926288) internal successors, (14381), 13295 states have internal predecessors, (14381), 0 states have call successors, (0), 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 09:35:36,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13296 states to 13296 states and 14381 transitions. [2021-12-15 09:35:36,352 INFO L78 Accepts]: Start accepts. Automaton has 13296 states and 14381 transitions. Word has length 947 [2021-12-15 09:35:36,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:36,352 INFO L470 AbstractCegarLoop]: Abstraction has 13296 states and 14381 transitions. [2021-12-15 09:35:36,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 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 09:35:36,353 INFO L276 IsEmpty]: Start isEmpty. Operand 13296 states and 14381 transitions. [2021-12-15 09:35:36,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1098 [2021-12-15 09:35:36,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:36,370 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:36,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 09:35:36,370 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:36,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:36,371 INFO L85 PathProgramCache]: Analyzing trace with hash 593548970, now seen corresponding path program 1 times [2021-12-15 09:35:36,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:36,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933701774] [2021-12-15 09:35:36,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:36,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:36,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4004 backedges. 2136 proven. 969 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2021-12-15 09:35:36,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:36,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933701774] [2021-12-15 09:35:36,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933701774] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:35:36,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921928889] [2021-12-15 09:35:36,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:36,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:35:36,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:35:36,744 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 09:35:36,770 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 09:35:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:36,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 09:35:36,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:35:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4004 backedges. 2128 proven. 0 refuted. 0 times theorem prover too weak. 1876 trivial. 0 not checked. [2021-12-15 09:35:38,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:35:38,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921928889] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:38,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:35:38,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-12-15 09:35:38,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707731330] [2021-12-15 09:35:38,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:38,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:38,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:38,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:38,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-15 09:35:38,135 INFO L87 Difference]: Start difference. First operand 13296 states and 14381 transitions. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 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 09:35:38,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:38,694 INFO L93 Difference]: Finished difference Result 27151 states and 29373 transitions. [2021-12-15 09:35:38,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:38,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 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 1097 [2021-12-15 09:35:38,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:38,706 INFO L225 Difference]: With dead ends: 27151 [2021-12-15 09:35:38,706 INFO L226 Difference]: Without dead ends: 13857 [2021-12-15 09:35:38,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1104 GetRequests, 1098 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-15 09:35:38,710 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 107 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:38,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 330 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:35:38,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13857 states. [2021-12-15 09:35:38,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13857 to 13484. [2021-12-15 09:35:38,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13484 states, 13483 states have (on average 1.080768374990729) internal successors, (14572), 13483 states have internal predecessors, (14572), 0 states have call successors, (0), 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 09:35:38,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13484 states to 13484 states and 14572 transitions. [2021-12-15 09:35:38,826 INFO L78 Accepts]: Start accepts. Automaton has 13484 states and 14572 transitions. Word has length 1097 [2021-12-15 09:35:38,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:38,827 INFO L470 AbstractCegarLoop]: Abstraction has 13484 states and 14572 transitions. [2021-12-15 09:35:38,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 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 09:35:38,827 INFO L276 IsEmpty]: Start isEmpty. Operand 13484 states and 14572 transitions. [2021-12-15 09:35:38,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1160 [2021-12-15 09:35:38,844 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:38,844 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:38,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-15 09:35:39,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:35:39,060 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:39,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:39,060 INFO L85 PathProgramCache]: Analyzing trace with hash 446961542, now seen corresponding path program 1 times [2021-12-15 09:35:39,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:39,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302827736] [2021-12-15 09:35:39,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:39,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:39,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4966 backedges. 2877 proven. 0 refuted. 0 times theorem prover too weak. 2089 trivial. 0 not checked. [2021-12-15 09:35:39,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:39,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302827736] [2021-12-15 09:35:39,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302827736] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:39,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:35:39,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:35:39,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566124636] [2021-12-15 09:35:39,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:39,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:39,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:39,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:39,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:35:39,288 INFO L87 Difference]: Start difference. First operand 13484 states and 14572 transitions. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 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 09:35:39,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:39,796 INFO L93 Difference]: Finished difference Result 27702 states and 29944 transitions. [2021-12-15 09:35:39,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:39,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 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 1159 [2021-12-15 09:35:39,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:39,809 INFO L225 Difference]: With dead ends: 27702 [2021-12-15 09:35:39,809 INFO L226 Difference]: Without dead ends: 14036 [2021-12-15 09:35:39,818 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 09:35:39,818 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 108 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:39,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 150 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:35:39,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14036 states. [2021-12-15 09:35:39,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14036 to 12378. [2021-12-15 09:35:39,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12378 states, 12377 states have (on average 1.077805607174598) internal successors, (13340), 12377 states have internal predecessors, (13340), 0 states have call successors, (0), 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 09:35:39,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12378 states to 12378 states and 13340 transitions. [2021-12-15 09:35:39,935 INFO L78 Accepts]: Start accepts. Automaton has 12378 states and 13340 transitions. Word has length 1159 [2021-12-15 09:35:39,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:39,936 INFO L470 AbstractCegarLoop]: Abstraction has 12378 states and 13340 transitions. [2021-12-15 09:35:39,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 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 09:35:39,936 INFO L276 IsEmpty]: Start isEmpty. Operand 12378 states and 13340 transitions. [2021-12-15 09:35:39,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1233 [2021-12-15 09:35:39,952 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:35:39,952 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, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:39,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-15 09:35:39,953 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:35:39,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:35:39,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1801142594, now seen corresponding path program 1 times [2021-12-15 09:35:39,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:35:39,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411886768] [2021-12-15 09:35:39,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:39,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:35:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:40,274 INFO L134 CoverageAnalysis]: Checked inductivity of 5747 backedges. 3337 proven. 552 refuted. 0 times theorem prover too weak. 1858 trivial. 0 not checked. [2021-12-15 09:35:40,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:35:40,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411886768] [2021-12-15 09:35:40,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411886768] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:35:40,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85502139] [2021-12-15 09:35:40,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:35:40,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:35:40,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:35:40,276 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 09:35:40,277 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 09:35:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:35:40,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1595 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 09:35:40,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:35:42,016 INFO L134 CoverageAnalysis]: Checked inductivity of 5747 backedges. 3440 proven. 0 refuted. 0 times theorem prover too weak. 2307 trivial. 0 not checked. [2021-12-15 09:35:42,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:35:42,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85502139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:35:42,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:35:42,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-12-15 09:35:42,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765654438] [2021-12-15 09:35:42,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:35:42,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:35:42,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:35:42,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:35:42,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-15 09:35:42,018 INFO L87 Difference]: Start difference. First operand 12378 states and 13340 transitions. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:35:42,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:35:42,460 INFO L93 Difference]: Finished difference Result 21244 states and 22904 transitions. [2021-12-15 09:35:42,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:35:42,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1232 [2021-12-15 09:35:42,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:35:42,461 INFO L225 Difference]: With dead ends: 21244 [2021-12-15 09:35:42,461 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 09:35:42,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1237 GetRequests, 1232 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-15 09:35:42,468 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 98 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:35:42,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 282 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:35:42,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 09:35:42,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 09:35:42,469 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 09:35:42,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 09:35:42,469 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1232 [2021-12-15 09:35:42,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:35:42,470 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 09:35:42,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:35:42,470 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 09:35:42,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 09:35:42,472 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 09:35:42,496 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 09:35:42,690 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,SelfDestructingSolverStorable23 [2021-12-15 09:35:42,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 09:35:53,181 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-12-15 09:35:53,181 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,182 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-12-15 09:35:53,183 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-12-15 09:35:53,183 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-12-15 09:35:53,183 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,183 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-12-15 09:35:53,183 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-12-15 09:35:53,183 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,183 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,183 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,183 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,183 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,183 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,183 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse22 (div (+ ~a23~0 (- 600276)) 5)) (.cse21 (+ ~a23~0 43))) (let ((.cse1 (<= .cse21 0)) (.cse9 (<= (+ .cse22 43) 0)) (.cse10 (or (= 0 (mod (+ ~a23~0 4) 5)) (<= (+ .cse22 44) 0))) (.cse4 (<= ~a29~0 245)) (.cse13 (= 11 ~a25~0)) (.cse18 (<= 312 ~a23~0)) (.cse17 (<= ~a29~0 275)) (.cse16 (<= ~a25~0 9)) (.cse0 (= 0 ~a4~0)) (.cse20 (<= (+ ~a23~0 599772) 0)) (.cse19 (<= ~a25~0 10)) (.cse2 (= 13 ~a25~0)) (.cse14 (<= ~a29~0 274)) (.cse3 (= ~a3~0 1)) (.cse5 (< 140 ~a29~0)) (.cse6 (= ~a8~0 15)) (.cse15 (<= ~a23~0 312)) (.cse11 (= ~a25~0 12)) (.cse8 (< 0 .cse21)) (.cse12 (<= ~a29~0 130)) (.cse7 (= ~a4~0 1))) (or (and .cse0 (= ~a25~0 9) .cse1) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse2 .cse8 .cse9 .cse4 .cse10 .cse7) (and .cse0 .cse11 .cse12 .cse1) (and .cse13 .cse14 .cse15 .cse5 .cse7) (and .cse0 .cse1 .cse5 .cse16) (and .cse0 .cse17 .cse11 .cse5) (and .cse18 .cse11 .cse3 .cse9 .cse12 .cse10 .cse6 .cse7) (and .cse15 .cse11 .cse8 .cse3 .cse6 .cse7) (and (or (not (= |ULTIMATE.start_calculate_output_~input#1| 6)) (<= ~a29~0 277)) .cse11 .cse8 .cse3 .cse9 .cse10 .cse5 .cse6 .cse7) (and .cse18 .cse19 .cse9 .cse10 .cse5 .cse7) (and (or (and .cse0 .cse13 .cse12) (and .cse0 (= ~a25~0 10) .cse12)) .cse1) (and .cse19 .cse3 .cse9 .cse10 .cse6 .cse7) (and .cse0 .cse2 .cse14 .cse1 .cse5) (and .cse13 .cse8 .cse3 .cse9 .cse10 .cse5 .cse6 .cse7) (and .cse18 .cse2 .cse9 .cse10 .cse7) (and .cse2 .cse20 .cse3 .cse5 .cse6 .cse7) (and .cse19 .cse4 .cse5 .cse7) (and .cse0 .cse13 (<= ~a29~0 140) (<= (+ ~a23~0 119992) 0)) (and .cse18 .cse17 .cse19 .cse5 .cse7 .cse16) (and .cse0 .cse20 .cse19 .cse12) (and .cse2 .cse15 .cse8 .cse3 .cse5 .cse6 .cse7) (and .cse2 .cse14 .cse15 .cse3 .cse5 .cse6 .cse7) (and .cse15 .cse11 .cse8 .cse12 .cse7)))) [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,184 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,185 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse22 (div (+ ~a23~0 (- 600276)) 5)) (.cse21 (+ ~a23~0 43))) (let ((.cse1 (<= .cse21 0)) (.cse9 (<= (+ .cse22 43) 0)) (.cse10 (or (= 0 (mod (+ ~a23~0 4) 5)) (<= (+ .cse22 44) 0))) (.cse4 (<= ~a29~0 245)) (.cse18 (<= 312 ~a23~0)) (.cse17 (<= ~a29~0 275)) (.cse16 (<= ~a25~0 9)) (.cse13 (= 11 ~a25~0)) (.cse0 (= 0 ~a4~0)) (.cse20 (<= (+ ~a23~0 599772) 0)) (.cse19 (<= ~a25~0 10)) (.cse2 (= 13 ~a25~0)) (.cse14 (<= ~a29~0 274)) (.cse3 (= ~a3~0 1)) (.cse5 (< 140 ~a29~0)) (.cse6 (= ~a8~0 15)) (.cse15 (<= ~a23~0 312)) (.cse11 (= ~a25~0 12)) (.cse8 (< 0 .cse21)) (.cse12 (<= ~a29~0 130)) (.cse7 (= ~a4~0 1))) (or (and .cse0 (= ~a25~0 9) .cse1) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse2 .cse8 .cse9 .cse4 .cse10 .cse7) (and .cse0 .cse11 .cse12 .cse1) (and .cse13 .cse14 .cse15 .cse5 .cse7) (and .cse0 .cse1 .cse5 .cse16) (and .cse0 .cse17 .cse11 .cse5) (and .cse18 .cse11 .cse3 .cse9 .cse12 .cse10 .cse6 .cse7) (and .cse15 .cse11 .cse8 .cse3 .cse6 .cse7) (and (or (not (= |ULTIMATE.start_calculate_output_~input#1| 6)) (<= ~a29~0 277)) .cse11 .cse8 .cse3 .cse9 .cse10 .cse5 .cse6 .cse7) (and .cse18 .cse19 .cse9 .cse10 .cse5 .cse7) (and (or (and .cse0 .cse13 .cse12) (and .cse0 (= ~a25~0 10) .cse12)) .cse1) (and .cse19 .cse3 .cse9 .cse10 .cse6 .cse7) (and .cse0 .cse2 .cse14 .cse1 .cse5) (and .cse13 .cse8 .cse3 .cse9 .cse10 .cse5 .cse6 .cse7) (and .cse18 .cse2 .cse9 .cse10 .cse7) (and .cse2 .cse20 .cse3 .cse5 .cse6 .cse7) (and .cse19 .cse4 .cse5 .cse7) (and .cse18 .cse17 .cse19 .cse5 .cse7 .cse16) (and .cse0 .cse13 (<= ~a29~0 140) (<= (+ ~a23~0 119992) 0)) (and .cse0 .cse20 .cse19 .cse12) (and .cse2 .cse15 .cse8 .cse3 .cse5 .cse6 .cse7) (and .cse2 .cse14 .cse15 .cse3 .cse5 .cse6 .cse7) (and .cse15 .cse11 .cse8 .cse12 .cse7)))) [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-12-15 09:35:53,186 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-12-15 09:35:53,187 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 178) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,188 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-12-15 09:35:53,189 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,190 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-12-15 09:35:53,191 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,192 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,193 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,196 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,196 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,196 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,196 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,196 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,196 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-15 09:35:53,196 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-12-15 09:35:53,196 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 09:35:53,197 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,197 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,197 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,197 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,197 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,197 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,197 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-12-15 09:35:53,197 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-12-15 09:35:53,197 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,198 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,198 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,198 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,198 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,198 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,198 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,198 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-12-15 09:35:53,198 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:35:53,198 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,198 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,198 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-12-15 09:35:53,199 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-12-15 09:35:53,199 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-12-15 09:35:53,199 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-12-15 09:35:53,201 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:35:53,202 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 09:35:53,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:35:53 BoogieIcfgContainer [2021-12-15 09:35:53,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 09:35:53,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 09:35:53,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 09:35:53,240 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 09:35:53,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:35:00" (3/4) ... [2021-12-15 09:35:53,243 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 09:35:53,272 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 09:35:53,274 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 09:35:53,275 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 09:35:53,276 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 09:35:53,376 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 09:35:53,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 09:35:53,377 INFO L158 Benchmark]: Toolchain (without parser) took 54699.66ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 78.3MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 386.5MB. Max. memory is 16.1GB. [2021-12-15 09:35:53,377 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 09:35:53,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.89ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 60.4MB in the end (delta: 17.7MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2021-12-15 09:35:53,377 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.21ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 60.4MB in the beginning and 138.2MB in the end (delta: -77.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-12-15 09:35:53,378 INFO L158 Benchmark]: Boogie Preprocessor took 67.74ms. Allocated memory is still 176.2MB. Free memory was 138.2MB in the beginning and 129.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 09:35:53,378 INFO L158 Benchmark]: RCFGBuilder took 1265.80ms. Allocated memory is still 176.2MB. Free memory was 129.1MB in the beginning and 132.7MB in the end (delta: -3.6MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2021-12-15 09:35:53,380 INFO L158 Benchmark]: TraceAbstraction took 52550.75ms. Allocated memory was 176.2MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 132.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2021-12-15 09:35:53,380 INFO L158 Benchmark]: Witness Printer took 136.51ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-15 09:35:53,385 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 572.89ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 60.4MB in the end (delta: 17.7MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.21ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 60.4MB in the beginning and 138.2MB in the end (delta: -77.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.74ms. Allocated memory is still 176.2MB. Free memory was 138.2MB in the beginning and 129.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1265.80ms. Allocated memory is still 176.2MB. Free memory was 129.1MB in the beginning and 132.7MB in the end (delta: -3.6MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. * TraceAbstraction took 52550.75ms. Allocated memory was 176.2MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 132.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 136.51ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 178]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.5s, OverallIterations: 24, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 19.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4770 SdHoareTripleChecker+Valid, 16.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4770 mSDsluCounter, 4921 SdHoareTripleChecker+Invalid, 13.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 594 mSDsCounter, 2923 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17327 IncrementalHoareTripleChecker+Invalid, 20250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2923 mSolverCounterUnsat, 4327 mSDtfsCounter, 17327 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6475 GetRequests, 6397 SyntacticMatches, 4 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18301occurred in iteration=12, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 24 MinimizatonAttempts, 26823 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 107 NumberOfFragments, 1213 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3038 FormulaSimplificationTreeSizeReduction, 6.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 143828 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 14.6s InterpolantComputationTime, 16739 NumberOfCodeBlocks, 16739 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 18179 ConstructedInterpolants, 0 QuantifiedInterpolants, 63036 SizeOfPredicates, 8 NumberOfNonLiveVariables, 6526 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 35 InterpolantComputations, 23 PerfectInterpolantSequences, 42473/45404 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((0 == a4 && a25 == 9) && a23 + 43 <= 0) || (((((13 == a25 && a3 == 1) && a29 <= 245) && 140 < a29) && a8 == 15) && a4 == 1)) || (((((13 == a25 && 0 < a23 + 43) && (a23 + -600276) / 5 + 43 <= 0) && a29 <= 245) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && a4 == 1)) || (((0 == a4 && a25 == 12) && a29 <= 130) && a23 + 43 <= 0)) || ((((11 == a25 && a29 <= 274) && a23 <= 312) && 140 < a29) && a4 == 1)) || (((0 == a4 && a23 + 43 <= 0) && 140 < a29) && a25 <= 9)) || (((0 == a4 && a29 <= 275) && a25 == 12) && 140 < a29)) || (((((((312 <= a23 && a25 == 12) && a3 == 1) && (a23 + -600276) / 5 + 43 <= 0) && a29 <= 130) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && a8 == 15) && a4 == 1)) || (((((a23 <= 312 && a25 == 12) && 0 < a23 + 43) && a3 == 1) && a8 == 15) && a4 == 1)) || (((((((((!(input == 6) || a29 <= 277) && a25 == 12) && 0 < a23 + 43) && a3 == 1) && (a23 + -600276) / 5 + 43 <= 0) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && 140 < a29) && a8 == 15) && a4 == 1)) || (((((312 <= a23 && a25 <= 10) && (a23 + -600276) / 5 + 43 <= 0) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && 140 < a29) && a4 == 1)) || ((((0 == a4 && 11 == a25) && a29 <= 130) || ((0 == a4 && a25 == 10) && a29 <= 130)) && a23 + 43 <= 0)) || (((((a25 <= 10 && a3 == 1) && (a23 + -600276) / 5 + 43 <= 0) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && a8 == 15) && a4 == 1)) || ((((0 == a4 && 13 == a25) && a29 <= 274) && a23 + 43 <= 0) && 140 < a29)) || (((((((11 == a25 && 0 < a23 + 43) && a3 == 1) && (a23 + -600276) / 5 + 43 <= 0) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && 140 < a29) && a8 == 15) && a4 == 1)) || ((((312 <= a23 && 13 == a25) && (a23 + -600276) / 5 + 43 <= 0) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && a4 == 1)) || (((((13 == a25 && a23 + 599772 <= 0) && a3 == 1) && 140 < a29) && a8 == 15) && a4 == 1)) || (((a25 <= 10 && a29 <= 245) && 140 < a29) && a4 == 1)) || (((((312 <= a23 && a29 <= 275) && a25 <= 10) && 140 < a29) && a4 == 1) && a25 <= 9)) || (((0 == a4 && 11 == a25) && a29 <= 140) && a23 + 119992 <= 0)) || (((0 == a4 && a23 + 599772 <= 0) && a25 <= 10) && a29 <= 130)) || ((((((13 == a25 && a23 <= 312) && 0 < a23 + 43) && a3 == 1) && 140 < a29) && a8 == 15) && a4 == 1)) || ((((((13 == a25 && a29 <= 274) && a23 <= 312) && a3 == 1) && 140 < a29) && a8 == 15) && a4 == 1)) || ((((a23 <= 312 && a25 == 12) && 0 < a23 + 43) && a29 <= 130) && a4 == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((0 == a4 && a25 == 9) && a23 + 43 <= 0) || (((((13 == a25 && a3 == 1) && a29 <= 245) && 140 < a29) && a8 == 15) && a4 == 1)) || (((((13 == a25 && 0 < a23 + 43) && (a23 + -600276) / 5 + 43 <= 0) && a29 <= 245) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && a4 == 1)) || (((0 == a4 && a25 == 12) && a29 <= 130) && a23 + 43 <= 0)) || ((((11 == a25 && a29 <= 274) && a23 <= 312) && 140 < a29) && a4 == 1)) || (((0 == a4 && a23 + 43 <= 0) && 140 < a29) && a25 <= 9)) || (((0 == a4 && a29 <= 275) && a25 == 12) && 140 < a29)) || (((((((312 <= a23 && a25 == 12) && a3 == 1) && (a23 + -600276) / 5 + 43 <= 0) && a29 <= 130) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && a8 == 15) && a4 == 1)) || (((((a23 <= 312 && a25 == 12) && 0 < a23 + 43) && a3 == 1) && a8 == 15) && a4 == 1)) || (((((((((!(input == 6) || a29 <= 277) && a25 == 12) && 0 < a23 + 43) && a3 == 1) && (a23 + -600276) / 5 + 43 <= 0) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && 140 < a29) && a8 == 15) && a4 == 1)) || (((((312 <= a23 && a25 <= 10) && (a23 + -600276) / 5 + 43 <= 0) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && 140 < a29) && a4 == 1)) || ((((0 == a4 && 11 == a25) && a29 <= 130) || ((0 == a4 && a25 == 10) && a29 <= 130)) && a23 + 43 <= 0)) || (((((a25 <= 10 && a3 == 1) && (a23 + -600276) / 5 + 43 <= 0) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && a8 == 15) && a4 == 1)) || ((((0 == a4 && 13 == a25) && a29 <= 274) && a23 + 43 <= 0) && 140 < a29)) || (((((((11 == a25 && 0 < a23 + 43) && a3 == 1) && (a23 + -600276) / 5 + 43 <= 0) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && 140 < a29) && a8 == 15) && a4 == 1)) || ((((312 <= a23 && 13 == a25) && (a23 + -600276) / 5 + 43 <= 0) && (0 == (a23 + 4) % 5 || (a23 + -600276) / 5 + 44 <= 0)) && a4 == 1)) || (((((13 == a25 && a23 + 599772 <= 0) && a3 == 1) && 140 < a29) && a8 == 15) && a4 == 1)) || (((a25 <= 10 && a29 <= 245) && 140 < a29) && a4 == 1)) || (((0 == a4 && 11 == a25) && a29 <= 140) && a23 + 119992 <= 0)) || (((((312 <= a23 && a29 <= 275) && a25 <= 10) && 140 < a29) && a4 == 1) && a25 <= 9)) || (((0 == a4 && a23 + 599772 <= 0) && a25 <= 10) && a29 <= 130)) || ((((((13 == a25 && a23 <= 312) && 0 < a23 + 43) && a3 == 1) && 140 < a29) && a8 == 15) && a4 == 1)) || ((((((13 == a25 && a29 <= 274) && a23 <= 312) && a3 == 1) && 140 < a29) && a8 == 15) && a4 == 1)) || ((((a23 <= 312 && a25 == 12) && 0 < a23 + 43) && a29 <= 130) && a4 == 1) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-15 09:35:53,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE