./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label29.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label29.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer --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 4a846042d2e3a90f9afd312e363335049aaf47f7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:28:50,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:28:50,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:28:50,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:28:50,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:28:50,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:28:50,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:28:50,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:28:50,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:28:50,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:28:50,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:28:50,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:28:50,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:28:50,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:28:50,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:28:50,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:28:50,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:28:50,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:28:50,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:28:50,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:28:50,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:28:50,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:28:50,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:28:50,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:28:50,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:28:50,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:28:50,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:28:50,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:28:50,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:28:50,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:28:50,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:28:50,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:28:50,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:28:50,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:28:50,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:28:50,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:28:50,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:28:50,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:28:50,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:28:50,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:28:50,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:28:50,441 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:28:50,488 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:28:50,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:28:50,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:28:50,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:28:50,493 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:28:50,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:28:50,494 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:28:50,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:28:50,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:28:50,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:28:50,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:28:50,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:28:50,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:28:50,496 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:28:50,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:28:50,496 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:28:50,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:28:50,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:28:50,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:28:50,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:28:50,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:28:50,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:28:50,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:28:50,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:28:50,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:28:50,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:28:50,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:28:50,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:28:50,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:28:50,500 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:/tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a846042d2e3a90f9afd312e363335049aaf47f7 [2020-12-01 15:28:50,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:28:50,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:28:50,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:28:50,805 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:28:50,807 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:28:50,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label29.c [2020-12-01 15:28:50,889 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/data/12715650e/939deea6d2a849528aaa803b8fdf8a5f/FLAGa9848563f [2020-12-01 15:28:51,601 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:28:51,601 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/sv-benchmarks/c/eca-rers2012/Problem01_label29.c [2020-12-01 15:28:51,614 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/data/12715650e/939deea6d2a849528aaa803b8fdf8a5f/FLAGa9848563f [2020-12-01 15:28:51,853 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/data/12715650e/939deea6d2a849528aaa803b8fdf8a5f [2020-12-01 15:28:51,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:28:51,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:28:51,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:28:51,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:28:51,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:28:51,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:28:51" (1/1) ... [2020-12-01 15:28:51,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e161f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:51, skipping insertion in model container [2020-12-01 15:28:51,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:28:51" (1/1) ... [2020-12-01 15:28:51,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:28:51,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:28:52,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:28:52,400 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:28:52,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:28:52,533 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:28:52,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:52 WrapperNode [2020-12-01 15:28:52,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:28:52,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:28:52,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:28:52,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:28:52,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:52" (1/1) ... [2020-12-01 15:28:52,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:52" (1/1) ... [2020-12-01 15:28:52,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:28:52,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:28:52,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:28:52,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:28:52,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:52" (1/1) ... [2020-12-01 15:28:52,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:52" (1/1) ... [2020-12-01 15:28:52,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:52" (1/1) ... [2020-12-01 15:28:52,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:52" (1/1) ... [2020-12-01 15:28:52,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:52" (1/1) ... [2020-12-01 15:28:52,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:52" (1/1) ... [2020-12-01 15:28:52,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:52" (1/1) ... [2020-12-01 15:28:52,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:28:52,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:28:52,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:28:52,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:28:52,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:28:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:28:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:28:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:28:52,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:28:54,135 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:28:54,135 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:28:54,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:28:54 BoogieIcfgContainer [2020-12-01 15:28:54,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:28:54,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:28:54,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:28:54,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:28:54,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:28:51" (1/3) ... [2020-12-01 15:28:54,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43deaad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:28:54, skipping insertion in model container [2020-12-01 15:28:54,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:52" (2/3) ... [2020-12-01 15:28:54,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43deaad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:28:54, skipping insertion in model container [2020-12-01 15:28:54,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:28:54" (3/3) ... [2020-12-01 15:28:54,148 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label29.c [2020-12-01 15:28:54,162 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:28:54,165 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:28:54,176 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:28:54,205 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:28:54,205 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:28:54,205 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:28:54,205 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:28:54,205 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:28:54,205 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:28:54,206 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:28:54,206 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:28:54,225 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-12-01 15:28:54,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-01 15:28:54,235 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:28:54,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:28:54,237 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:28:54,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:28:54,242 INFO L82 PathProgramCache]: Analyzing trace with hash 620620582, now seen corresponding path program 1 times [2020-12-01 15:28:54,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:28:54,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292557680] [2020-12-01 15:28:54,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:28:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:28:54,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:28:54,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292557680] [2020-12-01 15:28:54,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:28:54,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:28:54,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849608239] [2020-12-01 15:28:54,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:28:54,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:28:54,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:28:54,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:28:54,707 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-12-01 15:28:55,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:28:55,599 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-12-01 15:28:55,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:28:55,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2020-12-01 15:28:55,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:28:55,629 INFO L225 Difference]: With dead ends: 529 [2020-12-01 15:28:55,629 INFO L226 Difference]: Without dead ends: 266 [2020-12-01 15:28:55,637 INFO L677 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 [2020-12-01 15:28:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-01 15:28:55,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-12-01 15:28:55,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-12-01 15:28:55,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 386 transitions. [2020-12-01 15:28:55,722 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 386 transitions. Word has length 101 [2020-12-01 15:28:55,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:28:55,723 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 386 transitions. [2020-12-01 15:28:55,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:28:55,724 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 386 transitions. [2020-12-01 15:28:55,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-01 15:28:55,733 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:28:55,734 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:28:55,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:28:55,734 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:28:55,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:28:55,736 INFO L82 PathProgramCache]: Analyzing trace with hash -839721423, now seen corresponding path program 1 times [2020-12-01 15:28:55,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:28:55,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87498367] [2020-12-01 15:28:55,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:28:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:28:55,853 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:28:55,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87498367] [2020-12-01 15:28:55,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:28:55,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:28:55,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285293390] [2020-12-01 15:28:55,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:28:55,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:28:55,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:28:55,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:28:55,859 INFO L87 Difference]: Start difference. First operand 266 states and 386 transitions. Second operand 3 states. [2020-12-01 15:28:56,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:28:56,428 INFO L93 Difference]: Finished difference Result 792 states and 1153 transitions. [2020-12-01 15:28:56,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:28:56,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-01 15:28:56,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:28:56,432 INFO L225 Difference]: With dead ends: 792 [2020-12-01 15:28:56,433 INFO L226 Difference]: Without dead ends: 528 [2020-12-01 15:28:56,435 INFO L677 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 [2020-12-01 15:28:56,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-12-01 15:28:56,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-12-01 15:28:56,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-12-01 15:28:56,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 726 transitions. [2020-12-01 15:28:56,464 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 726 transitions. Word has length 107 [2020-12-01 15:28:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:28:56,466 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 726 transitions. [2020-12-01 15:28:56,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:28:56,467 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 726 transitions. [2020-12-01 15:28:56,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-12-01 15:28:56,474 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:28:56,475 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:28:56,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:28:56,476 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:28:56,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:28:56,479 INFO L82 PathProgramCache]: Analyzing trace with hash 356361780, now seen corresponding path program 1 times [2020-12-01 15:28:56,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:28:56,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937214835] [2020-12-01 15:28:56,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:28:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:28:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:28:56,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937214835] [2020-12-01 15:28:56,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:28:56,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:28:56,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225594195] [2020-12-01 15:28:56,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:28:56,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:28:56,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:28:56,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:28:56,629 INFO L87 Difference]: Start difference. First operand 528 states and 726 transitions. Second operand 3 states. [2020-12-01 15:28:57,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:28:57,156 INFO L93 Difference]: Finished difference Result 1578 states and 2173 transitions. [2020-12-01 15:28:57,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:28:57,157 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-12-01 15:28:57,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:28:57,163 INFO L225 Difference]: With dead ends: 1578 [2020-12-01 15:28:57,163 INFO L226 Difference]: Without dead ends: 1052 [2020-12-01 15:28:57,164 INFO L677 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 [2020-12-01 15:28:57,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-12-01 15:28:57,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2020-12-01 15:28:57,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-12-01 15:28:57,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1376 transitions. [2020-12-01 15:28:57,188 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1376 transitions. Word has length 122 [2020-12-01 15:28:57,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:28:57,189 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1376 transitions. [2020-12-01 15:28:57,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:28:57,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1376 transitions. [2020-12-01 15:28:57,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-12-01 15:28:57,192 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:28:57,192 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:28:57,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:28:57,193 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:28:57,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:28:57,194 INFO L82 PathProgramCache]: Analyzing trace with hash -799468791, now seen corresponding path program 1 times [2020-12-01 15:28:57,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:28:57,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825332905] [2020-12-01 15:28:57,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:28:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:28:57,277 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 15:28:57,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825332905] [2020-12-01 15:28:57,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:28:57,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:28:57,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594049928] [2020-12-01 15:28:57,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:28:57,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:28:57,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:28:57,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:28:57,279 INFO L87 Difference]: Start difference. First operand 1052 states and 1376 transitions. Second operand 3 states. [2020-12-01 15:28:57,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:28:57,901 INFO L93 Difference]: Finished difference Result 2495 states and 3288 transitions. [2020-12-01 15:28:57,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:28:57,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-12-01 15:28:57,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:28:57,909 INFO L225 Difference]: With dead ends: 2495 [2020-12-01 15:28:57,909 INFO L226 Difference]: Without dead ends: 1445 [2020-12-01 15:28:57,911 INFO L677 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 [2020-12-01 15:28:57,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2020-12-01 15:28:57,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2020-12-01 15:28:57,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2020-12-01 15:28:57,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1842 transitions. [2020-12-01 15:28:57,944 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1842 transitions. Word has length 129 [2020-12-01 15:28:57,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:28:57,945 INFO L481 AbstractCegarLoop]: Abstraction has 1445 states and 1842 transitions. [2020-12-01 15:28:57,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:28:57,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1842 transitions. [2020-12-01 15:28:57,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-12-01 15:28:57,949 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:28:57,949 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:28:57,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:28:57,950 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:28:57,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:28:57,950 INFO L82 PathProgramCache]: Analyzing trace with hash 12485887, now seen corresponding path program 1 times [2020-12-01 15:28:57,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:28:57,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702498591] [2020-12-01 15:28:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:28:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:28:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-01 15:28:58,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702498591] [2020-12-01 15:28:58,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:28:58,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:28:58,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480976280] [2020-12-01 15:28:58,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:28:58,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:28:58,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:28:58,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:28:58,019 INFO L87 Difference]: Start difference. First operand 1445 states and 1842 transitions. Second operand 3 states. [2020-12-01 15:28:58,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:28:58,529 INFO L93 Difference]: Finished difference Result 2888 states and 3682 transitions. [2020-12-01 15:28:58,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:28:58,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-12-01 15:28:58,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:28:58,538 INFO L225 Difference]: With dead ends: 2888 [2020-12-01 15:28:58,538 INFO L226 Difference]: Without dead ends: 1445 [2020-12-01 15:28:58,540 INFO L677 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 [2020-12-01 15:28:58,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2020-12-01 15:28:58,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2020-12-01 15:28:58,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2020-12-01 15:28:58,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1818 transitions. [2020-12-01 15:28:58,581 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1818 transitions. Word has length 133 [2020-12-01 15:28:58,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:28:58,581 INFO L481 AbstractCegarLoop]: Abstraction has 1445 states and 1818 transitions. [2020-12-01 15:28:58,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:28:58,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1818 transitions. [2020-12-01 15:28:58,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-12-01 15:28:58,586 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:28:58,586 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:28:58,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:28:58,586 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:28:58,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:28:58,587 INFO L82 PathProgramCache]: Analyzing trace with hash 2109706154, now seen corresponding path program 1 times [2020-12-01 15:28:58,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:28:58,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134026907] [2020-12-01 15:28:58,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:28:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:28:58,675 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-01 15:28:58,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134026907] [2020-12-01 15:28:58,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:28:58,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:28:58,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688256155] [2020-12-01 15:28:58,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:28:58,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:28:58,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:28:58,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:28:58,678 INFO L87 Difference]: Start difference. First operand 1445 states and 1818 transitions. Second operand 3 states. [2020-12-01 15:28:59,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:28:59,232 INFO L93 Difference]: Finished difference Result 3543 states and 4434 transitions. [2020-12-01 15:28:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:28:59,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2020-12-01 15:28:59,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:28:59,244 INFO L225 Difference]: With dead ends: 3543 [2020-12-01 15:28:59,244 INFO L226 Difference]: Without dead ends: 1707 [2020-12-01 15:28:59,246 INFO L677 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 [2020-12-01 15:28:59,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2020-12-01 15:28:59,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1314. [2020-12-01 15:28:59,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-12-01 15:28:59,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1463 transitions. [2020-12-01 15:28:59,287 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1463 transitions. Word has length 134 [2020-12-01 15:28:59,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:28:59,291 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1463 transitions. [2020-12-01 15:28:59,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:28:59,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1463 transitions. [2020-12-01 15:28:59,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-12-01 15:28:59,294 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:28:59,294 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:28:59,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:28:59,295 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:28:59,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:28:59,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1282529925, now seen corresponding path program 1 times [2020-12-01 15:28:59,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:28:59,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450685318] [2020-12-01 15:28:59,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:28:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:28:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-01 15:28:59,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450685318] [2020-12-01 15:28:59,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:28:59,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:28:59,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091428465] [2020-12-01 15:28:59,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:28:59,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:28:59,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:28:59,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:28:59,392 INFO L87 Difference]: Start difference. First operand 1314 states and 1463 transitions. Second operand 4 states. [2020-12-01 15:29:00,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:29:00,093 INFO L93 Difference]: Finished difference Result 3543 states and 3972 transitions. [2020-12-01 15:29:00,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:29:00,093 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2020-12-01 15:29:00,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:29:00,104 INFO L225 Difference]: With dead ends: 3543 [2020-12-01 15:29:00,104 INFO L226 Difference]: Without dead ends: 2231 [2020-12-01 15:29:00,107 INFO L677 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 [2020-12-01 15:29:00,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-12-01 15:29:00,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1576. [2020-12-01 15:29:00,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2020-12-01 15:29:00,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1749 transitions. [2020-12-01 15:29:00,145 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1749 transitions. Word has length 137 [2020-12-01 15:29:00,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:29:00,146 INFO L481 AbstractCegarLoop]: Abstraction has 1576 states and 1749 transitions. [2020-12-01 15:29:00,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:29:00,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1749 transitions. [2020-12-01 15:29:00,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-12-01 15:29:00,150 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:29:00,150 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:29:00,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 15:29:00,150 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:29:00,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:29:00,151 INFO L82 PathProgramCache]: Analyzing trace with hash -2102335383, now seen corresponding path program 1 times [2020-12-01 15:29:00,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:29:00,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801284468] [2020-12-01 15:29:00,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:29:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:29:00,229 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-12-01 15:29:00,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801284468] [2020-12-01 15:29:00,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:29:00,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:29:00,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921573966] [2020-12-01 15:29:00,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:29:00,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:29:00,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:29:00,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:29:00,232 INFO L87 Difference]: Start difference. First operand 1576 states and 1749 transitions. Second operand 3 states. [2020-12-01 15:29:00,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:29:00,728 INFO L93 Difference]: Finished difference Result 4067 states and 4514 transitions. [2020-12-01 15:29:00,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:29:00,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-12-01 15:29:00,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:29:00,740 INFO L225 Difference]: With dead ends: 4067 [2020-12-01 15:29:00,741 INFO L226 Difference]: Without dead ends: 2493 [2020-12-01 15:29:00,743 INFO L677 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 [2020-12-01 15:29:00,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-12-01 15:29:00,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2100. [2020-12-01 15:29:00,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-12-01 15:29:00,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2333 transitions. [2020-12-01 15:29:00,794 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2333 transitions. Word has length 146 [2020-12-01 15:29:00,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:29:00,795 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2333 transitions. [2020-12-01 15:29:00,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:29:00,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2333 transitions. [2020-12-01 15:29:00,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-12-01 15:29:00,799 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:29:00,799 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:29:00,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 15:29:00,800 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:29:00,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:29:00,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1795966815, now seen corresponding path program 1 times [2020-12-01 15:29:00,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:29:00,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039426532] [2020-12-01 15:29:00,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:29:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:29:00,892 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-12-01 15:29:00,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039426532] [2020-12-01 15:29:00,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:29:00,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:29:00,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763637081] [2020-12-01 15:29:00,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:29:00,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:29:00,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:29:00,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:29:00,899 INFO L87 Difference]: Start difference. First operand 2100 states and 2333 transitions. Second operand 3 states. [2020-12-01 15:29:01,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:29:01,419 INFO L93 Difference]: Finished difference Result 4460 states and 4954 transitions. [2020-12-01 15:29:01,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:29:01,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-12-01 15:29:01,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:29:01,433 INFO L225 Difference]: With dead ends: 4460 [2020-12-01 15:29:01,433 INFO L226 Difference]: Without dead ends: 2362 [2020-12-01 15:29:01,437 INFO L677 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 [2020-12-01 15:29:01,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-12-01 15:29:01,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2020-12-01 15:29:01,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-12-01 15:29:01,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2613 transitions. [2020-12-01 15:29:01,492 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2613 transitions. Word has length 162 [2020-12-01 15:29:01,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:29:01,492 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2613 transitions. [2020-12-01 15:29:01,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:29:01,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2613 transitions. [2020-12-01 15:29:01,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-12-01 15:29:01,497 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:29:01,498 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:29:01,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 15:29:01,498 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:29:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:29:01,499 INFO L82 PathProgramCache]: Analyzing trace with hash -646031141, now seen corresponding path program 1 times [2020-12-01 15:29:01,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:29:01,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358174398] [2020-12-01 15:29:01,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:29:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:29:01,614 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-12-01 15:29:01,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358174398] [2020-12-01 15:29:01,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:29:01,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:29:01,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840320599] [2020-12-01 15:29:01,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:29:01,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:29:01,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:29:01,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:29:01,616 INFO L87 Difference]: Start difference. First operand 2362 states and 2613 transitions. Second operand 4 states. [2020-12-01 15:29:02,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:29:02,323 INFO L93 Difference]: Finished difference Result 5377 states and 5940 transitions. [2020-12-01 15:29:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:29:02,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-12-01 15:29:02,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:29:02,339 INFO L225 Difference]: With dead ends: 5377 [2020-12-01 15:29:02,339 INFO L226 Difference]: Without dead ends: 3017 [2020-12-01 15:29:02,342 INFO L677 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 [2020-12-01 15:29:02,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2020-12-01 15:29:02,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 2755. [2020-12-01 15:29:02,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2020-12-01 15:29:02,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3023 transitions. [2020-12-01 15:29:02,412 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3023 transitions. Word has length 166 [2020-12-01 15:29:02,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:29:02,413 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 3023 transitions. [2020-12-01 15:29:02,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:29:02,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3023 transitions. [2020-12-01 15:29:02,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-12-01 15:29:02,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:29:02,419 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:29:02,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-01 15:29:02,420 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:29:02,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:29:02,420 INFO L82 PathProgramCache]: Analyzing trace with hash -87724684, now seen corresponding path program 1 times [2020-12-01 15:29:02,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:29:02,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020409346] [2020-12-01 15:29:02,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:29:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:29:02,592 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-12-01 15:29:02,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020409346] [2020-12-01 15:29:02,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:29:02,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:29:02,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559048005] [2020-12-01 15:29:02,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:29:02,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:29:02,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:29:02,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:29:02,596 INFO L87 Difference]: Start difference. First operand 2755 states and 3023 transitions. Second operand 3 states. [2020-12-01 15:29:03,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:29:03,055 INFO L93 Difference]: Finished difference Result 6032 states and 6628 transitions. [2020-12-01 15:29:03,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:29:03,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-12-01 15:29:03,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:29:03,070 INFO L225 Difference]: With dead ends: 6032 [2020-12-01 15:29:03,070 INFO L226 Difference]: Without dead ends: 3148 [2020-12-01 15:29:03,074 INFO L677 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 [2020-12-01 15:29:03,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2020-12-01 15:29:03,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 1838. [2020-12-01 15:29:03,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-12-01 15:29:03,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2027 transitions. [2020-12-01 15:29:03,127 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2027 transitions. Word has length 183 [2020-12-01 15:29:03,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:29:03,128 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 2027 transitions. [2020-12-01 15:29:03,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:29:03,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2027 transitions. [2020-12-01 15:29:03,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-12-01 15:29:03,136 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:29:03,136 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-01 15:29:03,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-01 15:29:03,137 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:29:03,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:29:03,137 INFO L82 PathProgramCache]: Analyzing trace with hash 736506349, now seen corresponding path program 1 times [2020-12-01 15:29:03,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:29:03,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765112796] [2020-12-01 15:29:03,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:29:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:29:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 129 proven. 142 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-01 15:29:03,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765112796] [2020-12-01 15:29:03,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493209489] [2020-12-01 15:29:03,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:29:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:29:03,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:29:03,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:29:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-12-01 15:29:04,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:29:04,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-01 15:29:04,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850295583] [2020-12-01 15:29:04,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:29:04,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:29:04,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:29:04,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:29:04,211 INFO L87 Difference]: Start difference. First operand 1838 states and 2027 transitions. Second operand 3 states. [2020-12-01 15:29:04,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:29:04,681 INFO L93 Difference]: Finished difference Result 3803 states and 4203 transitions. [2020-12-01 15:29:04,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:29:04,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2020-12-01 15:29:04,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:29:04,682 INFO L225 Difference]: With dead ends: 3803 [2020-12-01 15:29:04,682 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:29:04,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:29:04,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:29:04,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:29:04,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:29:04,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:29:04,687 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 248 [2020-12-01 15:29:04,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:29:04,687 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:29:04,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:29:04,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:29:04,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:29:04,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-01 15:29:04,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:29:05,153 INFO L262 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-12-01 15:29:05,153 INFO L262 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-12-01 15:29:05,154 INFO L262 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-12-01 15:29:05,154 INFO L262 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-12-01 15:29:05,154 INFO L262 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-12-01 15:29:05,154 INFO L262 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-12-01 15:29:05,154 INFO L262 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-12-01 15:29:05,154 INFO L262 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-12-01 15:29:05,154 INFO L262 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,154 INFO L262 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,155 INFO L262 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,155 INFO L262 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,155 INFO L262 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-12-01 15:29:05,155 INFO L262 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,156 INFO L262 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,156 INFO L262 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-12-01 15:29:05,157 INFO L262 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-12-01 15:29:05,157 INFO L262 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-12-01 15:29:05,157 INFO L262 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-12-01 15:29:05,157 INFO L262 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-12-01 15:29:05,157 INFO L262 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-12-01 15:29:05,157 INFO L262 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-12-01 15:29:05,158 INFO L262 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-12-01 15:29:05,158 INFO L262 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-12-01 15:29:05,158 INFO L262 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-12-01 15:29:05,158 INFO L262 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-12-01 15:29:05,159 INFO L262 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-12-01 15:29:05,160 INFO L262 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,160 INFO L262 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,160 INFO L262 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,160 INFO L262 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,160 INFO L262 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,160 INFO L262 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-12-01 15:29:05,160 INFO L262 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,160 INFO L262 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-12-01 15:29:05,161 INFO L262 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-12-01 15:29:05,161 INFO L262 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-12-01 15:29:05,161 INFO L262 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-12-01 15:29:05,161 INFO L262 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-12-01 15:29:05,161 INFO L262 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-12-01 15:29:05,161 INFO L262 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-12-01 15:29:05,162 INFO L262 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-12-01 15:29:05,162 INFO L262 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-12-01 15:29:05,162 INFO L262 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-12-01 15:29:05,163 INFO L262 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-12-01 15:29:05,163 INFO L262 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-12-01 15:29:05,163 INFO L262 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-12-01 15:29:05,163 INFO L262 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-12-01 15:29:05,163 INFO L262 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,163 INFO L262 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,163 INFO L262 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,163 INFO L262 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,164 INFO L262 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,164 INFO L262 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,164 INFO L262 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-12-01 15:29:05,164 INFO L262 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-12-01 15:29:05,164 INFO L262 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-12-01 15:29:05,164 INFO L262 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-12-01 15:29:05,164 INFO L262 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-12-01 15:29:05,164 INFO L262 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-12-01 15:29:05,164 INFO L262 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-12-01 15:29:05,165 INFO L262 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-12-01 15:29:05,165 INFO L262 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-12-01 15:29:05,165 INFO L262 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-12-01 15:29:05,165 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 15:29:05,165 INFO L262 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-12-01 15:29:05,165 INFO L262 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-12-01 15:29:05,165 INFO L262 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,165 INFO L262 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,166 INFO L262 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,166 INFO L262 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,166 INFO L262 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,166 INFO L262 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,166 INFO L262 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-12-01 15:29:05,167 INFO L262 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-12-01 15:29:05,167 INFO L262 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-12-01 15:29:05,167 INFO L262 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-12-01 15:29:05,167 INFO L262 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-12-01 15:29:05,167 INFO L262 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-12-01 15:29:05,167 INFO L262 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-12-01 15:29:05,167 INFO L262 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-12-01 15:29:05,167 INFO L262 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-12-01 15:29:05,167 INFO L262 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-12-01 15:29:05,168 INFO L262 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,168 INFO L262 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,168 INFO L262 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,168 INFO L262 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,168 INFO L262 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,168 INFO L262 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,169 INFO L262 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-12-01 15:29:05,169 INFO L262 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-12-01 15:29:05,169 INFO L262 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-12-01 15:29:05,169 INFO L262 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-12-01 15:29:05,169 INFO L262 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-12-01 15:29:05,170 INFO L262 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-12-01 15:29:05,170 INFO L262 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-12-01 15:29:05,170 INFO L262 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-12-01 15:29:05,170 INFO L262 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-12-01 15:29:05,170 INFO L262 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-12-01 15:29:05,170 INFO L262 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-12-01 15:29:05,170 INFO L262 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-12-01 15:29:05,170 INFO L262 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-12-01 15:29:05,171 INFO L262 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-12-01 15:29:05,171 INFO L262 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-12-01 15:29:05,171 INFO L262 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,171 INFO L262 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,171 INFO L262 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,171 INFO L262 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,171 INFO L262 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,171 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:29:05,171 INFO L262 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-12-01 15:29:05,172 INFO L262 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-12-01 15:29:05,172 INFO L262 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-12-01 15:29:05,172 INFO L262 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-12-01 15:29:05,172 INFO L262 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-12-01 15:29:05,172 INFO L262 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-12-01 15:29:05,172 INFO L262 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-12-01 15:29:05,172 INFO L262 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-12-01 15:29:05,172 INFO L262 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-12-01 15:29:05,173 INFO L258 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and .cse0 (<= ~a17~0 0)) (and .cse0 (not (= ~a7~0 1)) (= ~a17~0 1)) (<= ~a8~0 13))) [2020-12-01 15:29:05,173 INFO L262 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,173 INFO L262 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,173 INFO L262 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,173 INFO L262 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,173 INFO L262 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,174 INFO L262 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-12-01 15:29:05,174 INFO L262 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-12-01 15:29:05,174 INFO L262 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-12-01 15:29:05,174 INFO L262 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-12-01 15:29:05,174 INFO L262 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-12-01 15:29:05,174 INFO L262 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-12-01 15:29:05,174 INFO L262 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-12-01 15:29:05,174 INFO L262 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-12-01 15:29:05,174 INFO L262 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-12-01 15:29:05,175 INFO L262 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-12-01 15:29:05,175 INFO L262 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-12-01 15:29:05,175 INFO L262 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-12-01 15:29:05,175 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:29:05,175 INFO L262 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-12-01 15:29:05,175 INFO L265 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-12-01 15:29:05,175 INFO L262 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,175 INFO L262 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,176 INFO L262 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,176 INFO L262 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,176 INFO L262 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,176 INFO L262 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-12-01 15:29:05,176 INFO L262 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-12-01 15:29:05,176 INFO L262 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-12-01 15:29:05,176 INFO L262 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-12-01 15:29:05,176 INFO L262 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-12-01 15:29:05,176 INFO L262 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-12-01 15:29:05,177 INFO L262 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-12-01 15:29:05,177 INFO L262 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-12-01 15:29:05,177 INFO L262 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-12-01 15:29:05,177 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:29:05,177 INFO L262 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,177 INFO L262 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,177 INFO L262 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,177 INFO L262 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,178 INFO L262 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-12-01 15:29:05,178 INFO L262 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,178 INFO L262 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-12-01 15:29:05,178 INFO L262 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-12-01 15:29:05,178 INFO L262 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-12-01 15:29:05,178 INFO L262 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-12-01 15:29:05,178 INFO L262 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-12-01 15:29:05,178 INFO L262 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-12-01 15:29:05,178 INFO L262 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-12-01 15:29:05,179 INFO L262 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-12-01 15:29:05,179 INFO L262 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-12-01 15:29:05,179 INFO L262 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-12-01 15:29:05,179 INFO L262 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-12-01 15:29:05,179 INFO L262 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-12-01 15:29:05,179 INFO L262 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-12-01 15:29:05,179 INFO L262 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,179 INFO L258 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and .cse0 (<= ~a17~0 0)) (and .cse0 (not (= ~a7~0 1)) (= ~a17~0 1)) (<= ~a8~0 13))) [2020-12-01 15:29:05,180 INFO L262 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,180 INFO L262 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,180 INFO L262 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,180 INFO L262 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,180 INFO L262 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-12-01 15:29:05,180 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:29:05,180 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 15:29:05,181 INFO L262 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-12-01 15:29:05,181 INFO L262 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-12-01 15:29:05,181 INFO L262 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-12-01 15:29:05,181 INFO L262 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-12-01 15:29:05,181 INFO L262 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-12-01 15:29:05,181 INFO L262 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-12-01 15:29:05,181 INFO L262 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-12-01 15:29:05,181 INFO L262 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,181 INFO L262 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,182 INFO L262 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,182 INFO L262 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,182 INFO L262 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-12-01 15:29:05,182 INFO L262 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-12-01 15:29:05,182 INFO L262 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-12-01 15:29:05,182 INFO L262 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-12-01 15:29:05,182 INFO L262 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-12-01 15:29:05,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:29:05 BoogieIcfgContainer [2020-12-01 15:29:05,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:29:05,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:29:05,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:29:05,208 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:29:05,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:28:54" (3/4) ... [2020-12-01 15:29:05,211 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:29:05,241 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-01 15:29:05,242 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:29:05,244 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:29:05,245 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:29:05,404 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c87f566a-0b42-4f7e-9999-7f822db92d6c/bin/uautomizer/witness.graphml [2020-12-01 15:29:05,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:29:05,406 INFO L168 Benchmark]: Toolchain (without parser) took 13548.18 ms. Allocated memory was 113.2 MB in the beginning and 362.8 MB in the end (delta: 249.6 MB). Free memory was 84.6 MB in the beginning and 251.2 MB in the end (delta: -166.7 MB). Peak memory consumption was 82.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:29:05,406 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory was 49.9 MB in the beginning and 49.9 MB in the end (delta: 56.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:29:05,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.68 ms. Allocated memory is still 113.2 MB. Free memory was 84.4 MB in the beginning and 72.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:29:05,408 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.12 ms. Allocated memory is still 113.2 MB. Free memory was 72.0 MB in the beginning and 66.3 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:29:05,408 INFO L168 Benchmark]: Boogie Preprocessor took 92.89 ms. Allocated memory is still 113.2 MB. Free memory was 66.3 MB in the beginning and 61.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:29:05,408 INFO L168 Benchmark]: RCFGBuilder took 1404.02 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 61.6 MB in the beginning and 88.3 MB in the end (delta: -26.7 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:29:05,409 INFO L168 Benchmark]: TraceAbstraction took 11066.47 ms. Allocated memory was 153.1 MB in the beginning and 362.8 MB in the end (delta: 209.7 MB). Free memory was 87.2 MB in the beginning and 265.9 MB in the end (delta: -178.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:29:05,409 INFO L168 Benchmark]: Witness Printer took 196.74 ms. Allocated memory is still 362.8 MB. Free memory was 265.9 MB in the beginning and 251.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:29:05,411 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory was 49.9 MB in the beginning and 49.9 MB in the end (delta: 56.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 673.68 ms. Allocated memory is still 113.2 MB. Free memory was 84.4 MB in the beginning and 72.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.12 ms. Allocated memory is still 113.2 MB. Free memory was 72.0 MB in the beginning and 66.3 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.89 ms. Allocated memory is still 113.2 MB. Free memory was 66.3 MB in the beginning and 61.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1404.02 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 61.6 MB in the beginning and 88.3 MB in the end (delta: -26.7 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11066.47 ms. Allocated memory was 153.1 MB in the beginning and 362.8 MB in the end (delta: 209.7 MB). Free memory was 87.2 MB in the beginning and 265.9 MB in the end (delta: -178.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. * Witness Printer took 196.74 ms. Allocated memory is still 362.8 MB. Free memory was 265.9 MB in the beginning and 251.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((a21 == 1 && a17 <= 0) || ((a21 == 1 && !(a7 == 1)) && a17 == 1)) || a8 <= 13 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((a21 == 1 && a17 <= 0) || ((a21 == 1 && !(a7 == 1)) && a17 == 1)) || a8 <= 13 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.7s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 668 SDtfs, 1908 SDslu, 70 SDs, 0 SdLazy, 4169 SolverSat, 647 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 279 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2755occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 3013 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 45 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3000 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 100 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 2016 NumberOfCodeBlocks, 2016 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2003 ConstructedInterpolants, 0 QuantifiedInterpolants, 1132709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 484 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 1086/1228 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...