./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label05.c -s /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/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 57986f5df1647173a809f7445e253a7d11975932 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:10:20,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:10:20,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:10:20,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:10:20,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:10:20,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:10:20,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:10:20,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:10:20,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:10:20,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:10:20,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:10:20,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:10:20,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:10:20,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:10:20,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:10:20,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:10:20,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:10:20,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:10:20,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:10:20,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:10:20,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:10:20,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:10:20,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:10:20,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:10:20,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:10:20,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:10:20,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:10:20,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:10:20,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:10:20,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:10:20,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:10:20,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:10:20,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:10:20,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:10:20,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:10:20,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:10:20,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:10:20,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:10:20,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:10:20,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:10:20,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:10:20,358 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 21:10:20,405 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:10:20,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:10:20,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:10:20,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:10:20,408 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:10:20,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:10:20,409 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:10:20,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:10:20,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:10:20,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:10:20,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:10:20,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:10:20,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:10:20,411 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:10:20,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:10:20,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:10:20,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:10:20,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:10:20,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:10:20,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:10:20,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:10:20,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:10:20,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:10:20,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:10:20,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:10:20,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:10:20,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:10:20,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:10:20,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:10:20,415 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_263a39d0-e42f-4978-a1ba-9851a7e71f08/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57986f5df1647173a809f7445e253a7d11975932 [2020-11-29 21:10:20,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:10:20,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:10:20,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:10:20,700 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:10:20,701 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:10:20,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label05.c [2020-11-29 21:10:20,768 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/data/d8bd4a33e/c80a83efed2e4dc296ac5a9c273aa1b5/FLAG1d6e038fc [2020-11-29 21:10:21,355 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:10:21,356 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/sv-benchmarks/c/eca-rers2012/Problem01_label05.c [2020-11-29 21:10:21,372 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/data/d8bd4a33e/c80a83efed2e4dc296ac5a9c273aa1b5/FLAG1d6e038fc [2020-11-29 21:10:21,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/data/d8bd4a33e/c80a83efed2e4dc296ac5a9c273aa1b5 [2020-11-29 21:10:21,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:10:21,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:10:21,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:10:21,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:10:21,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:10:21,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:10:21" (1/1) ... [2020-11-29 21:10:21,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b27d390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:21, skipping insertion in model container [2020-11-29 21:10:21,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:10:21" (1/1) ... [2020-11-29 21:10:21,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:10:21,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:10:22,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:10:22,165 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:10:22,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:10:22,290 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:10:22,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:22 WrapperNode [2020-11-29 21:10:22,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:10:22,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:10:22,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:10:22,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:10:22,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:22" (1/1) ... [2020-11-29 21:10:22,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:22" (1/1) ... [2020-11-29 21:10:22,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:10:22,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:10:22,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:10:22,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:10:22,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:22" (1/1) ... [2020-11-29 21:10:22,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:22" (1/1) ... [2020-11-29 21:10:22,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:22" (1/1) ... [2020-11-29 21:10:22,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:22" (1/1) ... [2020-11-29 21:10:22,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:22" (1/1) ... [2020-11-29 21:10:22,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:22" (1/1) ... [2020-11-29 21:10:22,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:22" (1/1) ... [2020-11-29 21:10:22,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:10:22,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:10:22,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:10:22,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:10:22,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/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 [2020-11-29 21:10:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:10:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:10:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:10:22,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:10:24,272 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:10:24,275 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 21:10:24,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:10:24 BoogieIcfgContainer [2020-11-29 21:10:24,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:10:24,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:10:24,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:10:24,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:10:24,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:10:21" (1/3) ... [2020-11-29 21:10:24,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781829c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:10:24, skipping insertion in model container [2020-11-29 21:10:24,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:10:22" (2/3) ... [2020-11-29 21:10:24,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781829c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:10:24, skipping insertion in model container [2020-11-29 21:10:24,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:10:24" (3/3) ... [2020-11-29 21:10:24,289 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label05.c [2020-11-29 21:10:24,300 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:10:24,304 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:10:24,316 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:10:24,363 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:10:24,364 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:10:24,364 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:10:24,364 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:10:24,364 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:10:24,364 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:10:24,364 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:10:24,365 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:10:24,388 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-29 21:10:24,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-11-29 21:10:24,401 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:24,402 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] [2020-11-29 21:10:24,403 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:24,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:24,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1877985287, now seen corresponding path program 1 times [2020-11-29 21:10:24,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:24,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798952838] [2020-11-29 21:10:24,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:24,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:10:24,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798952838] [2020-11-29 21:10:24,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:10:24,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:10:24,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973888475] [2020-11-29 21:10:24,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:10:24,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:24,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:10:24,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:10:24,959 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-29 21:10:26,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:26,071 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-11-29 21:10:26,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:10:26,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2020-11-29 21:10:26,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:26,084 INFO L225 Difference]: With dead ends: 529 [2020-11-29 21:10:26,084 INFO L226 Difference]: Without dead ends: 266 [2020-11-29 21:10:26,088 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 [2020-11-29 21:10:26,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-29 21:10:26,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-29 21:10:26,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-29 21:10:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2020-11-29 21:10:26,143 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 94 [2020-11-29 21:10:26,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:26,144 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2020-11-29 21:10:26,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:10:26,144 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2020-11-29 21:10:26,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-11-29 21:10:26,149 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:26,150 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] [2020-11-29 21:10:26,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:10:26,150 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:26,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:26,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1109613404, now seen corresponding path program 1 times [2020-11-29 21:10:26,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:26,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093845854] [2020-11-29 21:10:26,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:10:26,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093845854] [2020-11-29 21:10:26,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:10:26,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:10:26,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038691993] [2020-11-29 21:10:26,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:10:26,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:26,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:10:26,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:10:26,261 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 3 states. [2020-11-29 21:10:26,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:26,874 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2020-11-29 21:10:26,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:10:26,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-11-29 21:10:26,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:26,879 INFO L225 Difference]: With dead ends: 792 [2020-11-29 21:10:26,879 INFO L226 Difference]: Without dead ends: 528 [2020-11-29 21:10:26,882 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 [2020-11-29 21:10:26,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-11-29 21:10:26,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-11-29 21:10:26,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-29 21:10:26,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 708 transitions. [2020-11-29 21:10:26,916 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 708 transitions. Word has length 100 [2020-11-29 21:10:26,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:26,916 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 708 transitions. [2020-11-29 21:10:26,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:10:26,916 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 708 transitions. [2020-11-29 21:10:26,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-11-29 21:10:26,922 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:26,922 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, 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] [2020-11-29 21:10:26,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:10:26,923 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:26,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:26,924 INFO L82 PathProgramCache]: Analyzing trace with hash 735966645, now seen corresponding path program 1 times [2020-11-29 21:10:26,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:26,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177607809] [2020-11-29 21:10:26,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:27,088 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:10:27,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177607809] [2020-11-29 21:10:27,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:10:27,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:10:27,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659727561] [2020-11-29 21:10:27,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:10:27,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:27,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:10:27,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:10:27,097 INFO L87 Difference]: Start difference. First operand 528 states and 708 transitions. Second operand 4 states. [2020-11-29 21:10:28,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:28,145 INFO L93 Difference]: Finished difference Result 1316 states and 1742 transitions. [2020-11-29 21:10:28,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:10:28,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-11-29 21:10:28,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:28,151 INFO L225 Difference]: With dead ends: 1316 [2020-11-29 21:10:28,151 INFO L226 Difference]: Without dead ends: 790 [2020-11-29 21:10:28,153 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 [2020-11-29 21:10:28,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-11-29 21:10:28,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2020-11-29 21:10:28,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-11-29 21:10:28,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1000 transitions. [2020-11-29 21:10:28,186 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1000 transitions. Word has length 128 [2020-11-29 21:10:28,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:28,195 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 1000 transitions. [2020-11-29 21:10:28,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:10:28,196 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1000 transitions. [2020-11-29 21:10:28,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-11-29 21:10:28,204 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:28,205 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, 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] [2020-11-29 21:10:28,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 21:10:28,208 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:28,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:28,209 INFO L82 PathProgramCache]: Analyzing trace with hash 346516735, now seen corresponding path program 1 times [2020-11-29 21:10:28,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:28,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066633176] [2020-11-29 21:10:28,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:28,336 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-11-29 21:10:28,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066633176] [2020-11-29 21:10:28,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:10:28,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:10:28,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879668111] [2020-11-29 21:10:28,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:10:28,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:28,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:10:28,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:10:28,341 INFO L87 Difference]: Start difference. First operand 790 states and 1000 transitions. Second operand 3 states. [2020-11-29 21:10:29,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:29,014 INFO L93 Difference]: Finished difference Result 1840 states and 2320 transitions. [2020-11-29 21:10:29,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:10:29,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-11-29 21:10:29,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:29,020 INFO L225 Difference]: With dead ends: 1840 [2020-11-29 21:10:29,020 INFO L226 Difference]: Without dead ends: 1052 [2020-11-29 21:10:29,022 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 [2020-11-29 21:10:29,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-11-29 21:10:29,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 790. [2020-11-29 21:10:29,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-11-29 21:10:29,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 988 transitions. [2020-11-29 21:10:29,053 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 988 transitions. Word has length 132 [2020-11-29 21:10:29,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:29,054 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 988 transitions. [2020-11-29 21:10:29,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:10:29,054 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 988 transitions. [2020-11-29 21:10:29,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-11-29 21:10:29,058 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:29,058 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, 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] [2020-11-29 21:10:29,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 21:10:29,059 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:29,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:29,059 INFO L82 PathProgramCache]: Analyzing trace with hash -166703431, now seen corresponding path program 1 times [2020-11-29 21:10:29,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:29,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077226150] [2020-11-29 21:10:29,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:29,197 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-29 21:10:29,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077226150] [2020-11-29 21:10:29,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:10:29,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:10:29,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168266123] [2020-11-29 21:10:29,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:10:29,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:29,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:10:29,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:10:29,200 INFO L87 Difference]: Start difference. First operand 790 states and 988 transitions. Second operand 3 states. [2020-11-29 21:10:29,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:29,901 INFO L93 Difference]: Finished difference Result 1971 states and 2439 transitions. [2020-11-29 21:10:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:10:29,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2020-11-29 21:10:29,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:29,908 INFO L225 Difference]: With dead ends: 1971 [2020-11-29 21:10:29,909 INFO L226 Difference]: Without dead ends: 1052 [2020-11-29 21:10:29,910 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 [2020-11-29 21:10:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-11-29 21:10:29,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2020-11-29 21:10:29,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-11-29 21:10:29,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1192 transitions. [2020-11-29 21:10:29,945 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1192 transitions. Word has length 136 [2020-11-29 21:10:29,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:29,946 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1192 transitions. [2020-11-29 21:10:29,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:10:29,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1192 transitions. [2020-11-29 21:10:29,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-11-29 21:10:29,949 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:29,949 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, 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] [2020-11-29 21:10:29,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 21:10:29,950 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:29,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:29,951 INFO L82 PathProgramCache]: Analyzing trace with hash -830081963, now seen corresponding path program 1 times [2020-11-29 21:10:29,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:29,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464950196] [2020-11-29 21:10:29,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:30,034 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-11-29 21:10:30,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464950196] [2020-11-29 21:10:30,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:10:30,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:10:30,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142727312] [2020-11-29 21:10:30,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:10:30,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:30,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:10:30,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:10:30,042 INFO L87 Difference]: Start difference. First operand 1052 states and 1192 transitions. Second operand 3 states. [2020-11-29 21:10:30,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:30,724 INFO L93 Difference]: Finished difference Result 2757 states and 3121 transitions. [2020-11-29 21:10:30,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:10:30,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-11-29 21:10:30,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:30,733 INFO L225 Difference]: With dead ends: 2757 [2020-11-29 21:10:30,733 INFO L226 Difference]: Without dead ends: 1707 [2020-11-29 21:10:30,735 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 [2020-11-29 21:10:30,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2020-11-29 21:10:30,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1314. [2020-11-29 21:10:30,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-11-29 21:10:30,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1490 transitions. [2020-11-29 21:10:30,781 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1490 transitions. Word has length 145 [2020-11-29 21:10:30,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:30,785 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1490 transitions. [2020-11-29 21:10:30,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:10:30,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1490 transitions. [2020-11-29 21:10:30,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-11-29 21:10:30,789 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:30,790 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, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 21:10:30,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 21:10:30,790 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:30,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:30,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1928577763, now seen corresponding path program 1 times [2020-11-29 21:10:30,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:30,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323322445] [2020-11-29 21:10:30,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-11-29 21:10:30,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323322445] [2020-11-29 21:10:30,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:10:30,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:10:30,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201656802] [2020-11-29 21:10:30,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:10:30,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:30,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:10:30,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:10:30,918 INFO L87 Difference]: Start difference. First operand 1314 states and 1490 transitions. Second operand 3 states. [2020-11-29 21:10:31,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:31,519 INFO L93 Difference]: Finished difference Result 2888 states and 3281 transitions. [2020-11-29 21:10:31,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:10:31,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-11-29 21:10:31,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:31,528 INFO L225 Difference]: With dead ends: 2888 [2020-11-29 21:10:31,528 INFO L226 Difference]: Without dead ends: 1576 [2020-11-29 21:10:31,530 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 [2020-11-29 21:10:31,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2020-11-29 21:10:31,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2020-11-29 21:10:31,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2020-11-29 21:10:31,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1777 transitions. [2020-11-29 21:10:31,576 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1777 transitions. Word has length 161 [2020-11-29 21:10:31,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:31,576 INFO L481 AbstractCegarLoop]: Abstraction has 1576 states and 1777 transitions. [2020-11-29 21:10:31,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:10:31,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1777 transitions. [2020-11-29 21:10:31,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-29 21:10:31,581 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:31,581 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, 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] [2020-11-29 21:10:31,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 21:10:31,582 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:31,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:31,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1634991365, now seen corresponding path program 1 times [2020-11-29 21:10:31,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:31,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252496046] [2020-11-29 21:10:31,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-11-29 21:10:31,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252496046] [2020-11-29 21:10:31,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:10:31,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:10:31,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605516374] [2020-11-29 21:10:31,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:10:31,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:31,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:10:31,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:10:31,740 INFO L87 Difference]: Start difference. First operand 1576 states and 1777 transitions. Second operand 4 states. [2020-11-29 21:10:32,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:32,563 INFO L93 Difference]: Finished difference Result 3412 states and 3869 transitions. [2020-11-29 21:10:32,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:10:32,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2020-11-29 21:10:32,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:32,575 INFO L225 Difference]: With dead ends: 3412 [2020-11-29 21:10:32,575 INFO L226 Difference]: Without dead ends: 1838 [2020-11-29 21:10:32,578 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 [2020-11-29 21:10:32,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-11-29 21:10:32,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838. [2020-11-29 21:10:32,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-11-29 21:10:32,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2071 transitions. [2020-11-29 21:10:32,658 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2071 transitions. Word has length 177 [2020-11-29 21:10:32,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:32,658 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 2071 transitions. [2020-11-29 21:10:32,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:10:32,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2071 transitions. [2020-11-29 21:10:32,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-11-29 21:10:32,664 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:32,665 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:10:32,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 21:10:32,665 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:32,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:32,666 INFO L82 PathProgramCache]: Analyzing trace with hash -136036660, now seen corresponding path program 1 times [2020-11-29 21:10:32,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:32,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351853947] [2020-11-29 21:10:32,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:32,841 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-11-29 21:10:32,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351853947] [2020-11-29 21:10:32,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012497467] [2020-11-29 21:10:32,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/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 [2020-11-29 21:10:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:32,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:10:33,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:10:33,260 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-11-29 21:10:33,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 21:10:33,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 21:10:33,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384712402] [2020-11-29 21:10:33,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:10:33,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:33,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:10:33,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:10:33,264 INFO L87 Difference]: Start difference. First operand 1838 states and 2071 transitions. Second operand 3 states. [2020-11-29 21:10:34,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:34,069 INFO L93 Difference]: Finished difference Result 3674 states and 4140 transitions. [2020-11-29 21:10:34,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:10:34,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2020-11-29 21:10:34,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:34,081 INFO L225 Difference]: With dead ends: 3674 [2020-11-29 21:10:34,082 INFO L226 Difference]: Without dead ends: 1838 [2020-11-29 21:10:34,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:10:34,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-11-29 21:10:34,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1707. [2020-11-29 21:10:34,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2020-11-29 21:10:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1880 transitions. [2020-11-29 21:10:34,131 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1880 transitions. Word has length 194 [2020-11-29 21:10:34,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:34,132 INFO L481 AbstractCegarLoop]: Abstraction has 1707 states and 1880 transitions. [2020-11-29 21:10:34,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:10:34,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1880 transitions. [2020-11-29 21:10:34,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-11-29 21:10:34,137 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:34,138 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:10:34,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-11-29 21:10:34,360 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:34,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:34,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1758176451, now seen corresponding path program 1 times [2020-11-29 21:10:34,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:34,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941307219] [2020-11-29 21:10:34,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:34,531 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 130 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-11-29 21:10:34,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941307219] [2020-11-29 21:10:34,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40718141] [2020-11-29 21:10:34,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:10:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:34,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:10:34,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:10:34,764 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-11-29 21:10:34,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 21:10:34,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 21:10:34,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878590879] [2020-11-29 21:10:34,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:10:34,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:34,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:10:34,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:10:34,767 INFO L87 Difference]: Start difference. First operand 1707 states and 1880 transitions. Second operand 3 states. [2020-11-29 21:10:35,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:35,361 INFO L93 Difference]: Finished difference Result 3936 states and 4358 transitions. [2020-11-29 21:10:35,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:10:35,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-11-29 21:10:35,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:35,374 INFO L225 Difference]: With dead ends: 3936 [2020-11-29 21:10:35,374 INFO L226 Difference]: Without dead ends: 2231 [2020-11-29 21:10:35,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:10:35,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-11-29 21:10:35,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1969. [2020-11-29 21:10:35,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-11-29 21:10:35,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2177 transitions. [2020-11-29 21:10:35,423 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2177 transitions. Word has length 200 [2020-11-29 21:10:35,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:35,423 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2177 transitions. [2020-11-29 21:10:35,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:10:35,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2177 transitions. [2020-11-29 21:10:35,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-11-29 21:10:35,430 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:35,430 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 21:10:35,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-29 21:10:35,644 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:35,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:35,645 INFO L82 PathProgramCache]: Analyzing trace with hash -274643131, now seen corresponding path program 1 times [2020-11-29 21:10:35,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:35,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167728994] [2020-11-29 21:10:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:35,792 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 165 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-11-29 21:10:35,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167728994] [2020-11-29 21:10:35,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288524120] [2020-11-29 21:10:35,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:10:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:35,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:10:35,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:10:36,043 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-11-29 21:10:36,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 21:10:36,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 21:10:36,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505469526] [2020-11-29 21:10:36,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:10:36,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:36,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:10:36,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:10:36,046 INFO L87 Difference]: Start difference. First operand 1969 states and 2177 transitions. Second operand 3 states. [2020-11-29 21:10:36,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:36,638 INFO L93 Difference]: Finished difference Result 4853 states and 5350 transitions. [2020-11-29 21:10:36,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:10:36,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-11-29 21:10:36,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:36,653 INFO L225 Difference]: With dead ends: 4853 [2020-11-29 21:10:36,653 INFO L226 Difference]: Without dead ends: 2886 [2020-11-29 21:10:36,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:10:36,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-11-29 21:10:36,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2755. [2020-11-29 21:10:36,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2020-11-29 21:10:36,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3014 transitions. [2020-11-29 21:10:36,718 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3014 transitions. Word has length 221 [2020-11-29 21:10:36,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:36,718 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 3014 transitions. [2020-11-29 21:10:36,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:10:36,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3014 transitions. [2020-11-29 21:10:36,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-11-29 21:10:36,726 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:36,726 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:10:36,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-29 21:10:36,944 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:36,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:36,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1745618469, now seen corresponding path program 1 times [2020-11-29 21:10:36,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:36,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622687846] [2020-11-29 21:10:36,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:37,278 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 178 proven. 49 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-11-29 21:10:37,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622687846] [2020-11-29 21:10:37,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623019565] [2020-11-29 21:10:37,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:10:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:37,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:10:37,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:10:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-11-29 21:10:37,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 21:10:37,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-29 21:10:37,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551053147] [2020-11-29 21:10:37,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:10:37,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:37,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:10:37,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:10:37,499 INFO L87 Difference]: Start difference. First operand 2755 states and 3014 transitions. Second operand 3 states. [2020-11-29 21:10:38,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:38,094 INFO L93 Difference]: Finished difference Result 6032 states and 6603 transitions. [2020-11-29 21:10:38,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:10:38,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-11-29 21:10:38,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:38,110 INFO L225 Difference]: With dead ends: 6032 [2020-11-29 21:10:38,111 INFO L226 Difference]: Without dead ends: 3279 [2020-11-29 21:10:38,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:10:38,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2020-11-29 21:10:38,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2755. [2020-11-29 21:10:38,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2020-11-29 21:10:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3014 transitions. [2020-11-29 21:10:38,174 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3014 transitions. Word has length 240 [2020-11-29 21:10:38,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:38,175 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 3014 transitions. [2020-11-29 21:10:38,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:10:38,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3014 transitions. [2020-11-29 21:10:38,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-11-29 21:10:38,183 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:10:38,183 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 21:10:38,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:10:38,408 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:10:38,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:10:38,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1015629935, now seen corresponding path program 1 times [2020-11-29 21:10:38,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:10:38,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83984647] [2020-11-29 21:10:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:10:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:38,539 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 202 proven. 6 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-11-29 21:10:38,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83984647] [2020-11-29 21:10:38,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333357158] [2020-11-29 21:10:38,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:10:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:10:38,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 21:10:38,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:10:38,770 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-11-29 21:10:38,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 21:10:38,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 21:10:38,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221389403] [2020-11-29 21:10:38,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:10:38,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:10:38,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:10:38,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:10:38,774 INFO L87 Difference]: Start difference. First operand 2755 states and 3014 transitions. Second operand 3 states. [2020-11-29 21:10:39,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:10:39,392 INFO L93 Difference]: Finished difference Result 5113 states and 5566 transitions. [2020-11-29 21:10:39,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:10:39,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 252 [2020-11-29 21:10:39,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:10:39,393 INFO L225 Difference]: With dead ends: 5113 [2020-11-29 21:10:39,393 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 21:10:39,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:10:39,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 21:10:39,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 21:10:39,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 21:10:39,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 21:10:39,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 252 [2020-11-29 21:10:39,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:10:39,399 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:10:39,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:10:39,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:10:39,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 21:10:39,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-29 21:10:39,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 21:10:39,937 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2020-11-29 21:10:40,150 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2020-11-29 21:10:40,152 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-29 21:10:40,152 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,153 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,154 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-29 21:10:40,155 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-29 21:10:40,156 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-29 21:10:40,156 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,157 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,157 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,158 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,158 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,158 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,158 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-29 21:10:40,158 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-29 21:10:40,158 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-29 21:10:40,158 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-29 21:10:40,158 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-29 21:10:40,158 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-29 21:10:40,158 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-29 21:10:40,158 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-29 21:10:40,159 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-29 21:10:40,160 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-29 21:10:40,161 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-29 21:10:40,161 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-29 21:10:40,161 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-29 21:10:40,161 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-29 21:10:40,161 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-29 21:10:40,161 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-29 21:10:40,161 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-29 21:10:40,161 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-29 21:10:40,161 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-29 21:10:40,161 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-29 21:10:40,161 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-29 21:10:40,162 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,163 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,163 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,163 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,163 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,163 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 21:10:40,163 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-29 21:10:40,163 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-29 21:10:40,163 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-29 21:10:40,163 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-29 21:10:40,163 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-29 21:10:40,164 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-29 21:10:40,164 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-29 21:10:40,164 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-29 21:10:40,164 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-29 21:10:40,164 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse8 (= ~a20~0 1))) (let ((.cse7 (<= ~a7~0 0)) (.cse5 (<= ~a16~0 4)) (.cse4 (<= 15 ~a8~0)) (.cse3 (= ~a21~0 1)) (.cse0 (<= ~a16~0 5)) (.cse6 (<= ~a17~0 0)) (.cse9 (not .cse8)) (.cse1 (<= ~a21~0 0)) (.cse2 (= ~a17~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse2) (and .cse3 .cse5 .cse6 .cse7) (and .cse6 .cse8 .cse1) (and .cse3 .cse7 .cse8 .cse2) (and .cse5 .cse8 .cse2) (and .cse6 .cse9 .cse4) (and (<= 14 ~a8~0) .cse3 .cse6 .cse8) (and .cse0 .cse6 .cse9) (and .cse1 .cse8 .cse2)))) [2020-11-29 21:10:40,165 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,165 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,165 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,165 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,165 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,165 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-29 21:10:40,165 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-29 21:10:40,165 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-29 21:10:40,166 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-29 21:10:40,166 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-29 21:10:40,166 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-29 21:10:40,166 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-29 21:10:40,166 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-29 21:10:40,166 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-29 21:10:40,166 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-29 21:10:40,166 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-29 21:10:40,166 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-29 21:10:40,166 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 21:10:40,166 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-29 21:10:40,166 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-29 21:10:40,166 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,167 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-29 21:10:40,168 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-29 21:10:40,169 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-29 21:10:40,169 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-29 21:10:40,169 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,169 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse8 (= ~a20~0 1))) (let ((.cse7 (<= ~a7~0 0)) (.cse5 (<= ~a16~0 4)) (.cse4 (<= 15 ~a8~0)) (.cse3 (= ~a21~0 1)) (.cse0 (<= ~a16~0 5)) (.cse6 (<= ~a17~0 0)) (.cse9 (not .cse8)) (.cse1 (<= ~a21~0 0)) (.cse2 (= ~a17~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse2) (and .cse3 .cse5 .cse6 .cse7) (and .cse6 .cse8 .cse1) (and .cse3 .cse7 .cse8 .cse2) (and .cse5 .cse8 .cse2) (and .cse6 .cse9 .cse4) (and (<= 14 ~a8~0) .cse3 .cse6 .cse8) (and .cse0 .cse6 .cse9) (and .cse1 .cse8 .cse2)))) [2020-11-29 21:10:40,169 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,169 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,169 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,169 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,169 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-29 21:10:40,169 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 21:10:40,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-29 21:10:40,170 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-29 21:10:40,171 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-29 21:10:40,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:10:40 BoogieIcfgContainer [2020-11-29 21:10:40,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:10:40,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:10:40,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:10:40,209 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:10:40,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:10:24" (3/4) ... [2020-11-29 21:10:40,212 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 21:10:40,245 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 21:10:40,246 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 21:10:40,247 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 21:10:40,249 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 21:10:40,420 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_263a39d0-e42f-4978-a1ba-9851a7e71f08/bin/uautomizer/witness.graphml [2020-11-29 21:10:40,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:10:40,422 INFO L168 Benchmark]: Toolchain (without parser) took 18791.32 ms. Allocated memory was 113.2 MB in the beginning and 492.8 MB in the end (delta: 379.6 MB). Free memory was 81.5 MB in the beginning and 386.7 MB in the end (delta: -305.2 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:10:40,422 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 37.5 MB in the beginning and 37.4 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:10:40,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.31 ms. Allocated memory is still 113.2 MB. Free memory was 81.5 MB in the beginning and 72.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:10:40,423 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.51 ms. Allocated memory is still 113.2 MB. Free memory was 72.0 MB in the beginning and 66.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 21:10:40,423 INFO L168 Benchmark]: Boogie Preprocessor took 86.04 ms. Allocated memory is still 113.2 MB. Free memory was 66.2 MB in the beginning and 62.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:10:40,424 INFO L168 Benchmark]: RCFGBuilder took 1798.51 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 62.0 MB in the beginning and 71.8 MB in the end (delta: -9.8 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. [2020-11-29 21:10:40,424 INFO L168 Benchmark]: TraceAbstraction took 15927.06 ms. Allocated memory was 142.6 MB in the beginning and 492.8 MB in the end (delta: 350.2 MB). Free memory was 71.8 MB in the beginning and 402.4 MB in the end (delta: -330.5 MB). Peak memory consumption was 189.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:10:40,424 INFO L168 Benchmark]: Witness Printer took 212.43 ms. Allocated memory is still 492.8 MB. Free memory was 402.4 MB in the beginning and 386.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:10:40,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 37.5 MB in the beginning and 37.4 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 650.31 ms. Allocated memory is still 113.2 MB. Free memory was 81.5 MB in the beginning and 72.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 101.51 ms. Allocated memory is still 113.2 MB. Free memory was 72.0 MB in the beginning and 66.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.04 ms. Allocated memory is still 113.2 MB. Free memory was 66.2 MB in the beginning and 62.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1798.51 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 62.0 MB in the beginning and 71.8 MB in the end (delta: -9.8 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15927.06 ms. Allocated memory was 142.6 MB in the beginning and 492.8 MB in the end (delta: 350.2 MB). Free memory was 71.8 MB in the beginning and 402.4 MB in the end (delta: -330.5 MB). Peak memory consumption was 189.4 MB. Max. memory is 16.1 GB. * Witness Printer took 212.43 ms. Allocated memory is still 492.8 MB. Free memory was 402.4 MB in the beginning and 386.7 MB in the end (delta: 15.7 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: ((((((((((a16 <= 5 && a21 <= 0) && a17 == 1) || ((a21 == 1 && 15 <= a8) && a17 == 1)) || (((a21 == 1 && a16 <= 4) && a17 <= 0) && a7 <= 0)) || ((a17 <= 0 && a20 == 1) && a21 <= 0)) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a17 == 1)) || ((a16 <= 4 && a20 == 1) && a17 == 1)) || ((a17 <= 0 && !(a20 == 1)) && 15 <= a8)) || (((14 <= a8 && a21 == 1) && a17 <= 0) && a20 == 1)) || ((a16 <= 5 && a17 <= 0) && !(a20 == 1))) || ((a21 <= 0 && a20 == 1) && a17 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((((((((a16 <= 5 && a21 <= 0) && a17 == 1) || ((a21 == 1 && 15 <= a8) && a17 == 1)) || (((a21 == 1 && a16 <= 4) && a17 <= 0) && a7 <= 0)) || ((a17 <= 0 && a20 == 1) && a21 <= 0)) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a17 == 1)) || ((a16 <= 4 && a20 == 1) && a17 == 1)) || ((a17 <= 0 && !(a20 == 1)) && 15 <= a8)) || (((14 <= a8 && a21 == 1) && a17 <= 0) && a20 == 1)) || ((a16 <= 5 && a17 <= 0) && !(a20 == 1))) || ((a21 <= 0 && a20 == 1) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.2s, OverallIterations: 13, TraceHistogramMax: 7, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 881 SDtfs, 1789 SDslu, 77 SDs, 0 SdLazy, 4586 SolverSat, 690 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1142 GetRequests, 1111 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2755occurred in iteration=11, 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, 13 MinimizatonAttempts, 1703 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 225 HoareAnnotationTreeSize, 3 FomulaSimplifications, 900 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 306 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 3287 NumberOfCodeBlocks, 3287 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3269 ConstructedInterpolants, 0 QuantifiedInterpolants, 1387971 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2216 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 2883/2956 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...