./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label39.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_ff1fbb10-8930-4e65-9024-91dd3e1b597d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/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 d8c37a616d9409c2c9154669238125a656fa2814 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:41:54,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:41:54,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:41:54,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:41:54,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:41:54,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:41:54,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:41:54,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:41:54,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:41:54,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:41:54,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:41:54,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:41:54,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:41:54,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:41:54,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:41:54,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:41:54,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:41:54,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:41:54,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:41:54,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:41:54,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:41:54,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:41:54,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:41:54,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:41:54,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:41:54,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:41:54,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:41:54,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:41:54,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:41:54,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:41:54,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:41:54,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:41:54,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:41:54,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:41:54,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:41:54,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:41:54,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:41:54,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:41:54,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:41:54,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:41:54,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:41:54,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:41:55,047 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:41:55,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:41:55,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:41:55,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:41:55,052 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:41:55,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:41:55,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:41:55,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:41:55,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:41:55,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:41:55,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:41:55,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:41:55,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:41:55,056 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:41:55,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:41:55,056 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:41:55,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:41:55,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:41:55,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:41:55,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:41:55,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:41:55,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:41:55,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:41:55,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:41:55,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:41:55,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:41:55,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:41:55,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:41:55,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:41:55,061 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_ff1fbb10-8930-4e65-9024-91dd3e1b597d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8c37a616d9409c2c9154669238125a656fa2814 [2020-11-30 00:41:55,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:41:55,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:41:55,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:41:55,407 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:41:55,408 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:41:55,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2020-11-30 00:41:55,506 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/bin/uautomizer/data/f7be852e3/bd51b82c3d144a9083be76e048b57a78/FLAG465f2dd8e [2020-11-30 00:41:56,150 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:41:56,151 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2020-11-30 00:41:56,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/bin/uautomizer/data/f7be852e3/bd51b82c3d144a9083be76e048b57a78/FLAG465f2dd8e [2020-11-30 00:41:56,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/bin/uautomizer/data/f7be852e3/bd51b82c3d144a9083be76e048b57a78 [2020-11-30 00:41:56,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:41:56,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:41:56,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:41:56,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:41:56,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:41:56,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:41:56" (1/1) ... [2020-11-30 00:41:56,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e4a4cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:56, skipping insertion in model container [2020-11-30 00:41:56,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:41:56" (1/1) ... [2020-11-30 00:41:56,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:41:56,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:41:56,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:41:56,947 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:41:57,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:41:57,104 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:41:57,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:57 WrapperNode [2020-11-30 00:41:57,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:41:57,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:41:57,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:41:57,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:41:57,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:57" (1/1) ... [2020-11-30 00:41:57,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:57" (1/1) ... [2020-11-30 00:41:57,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:41:57,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:41:57,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:41:57,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:41:57,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:57" (1/1) ... [2020-11-30 00:41:57,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:57" (1/1) ... [2020-11-30 00:41:57,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:57" (1/1) ... [2020-11-30 00:41:57,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:57" (1/1) ... [2020-11-30 00:41:57,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:57" (1/1) ... [2020-11-30 00:41:57,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:57" (1/1) ... [2020-11-30 00:41:57,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:57" (1/1) ... [2020-11-30 00:41:57,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:41:57,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:41:57,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:41:57,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:41:57,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/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 [2020-11-30 00:41:57,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:41:57,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:41:57,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:41:57,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:41:58,983 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:41:58,984 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:41:58,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:41:58 BoogieIcfgContainer [2020-11-30 00:41:58,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:41:58,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:41:58,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:41:58,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:41:58,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:41:56" (1/3) ... [2020-11-30 00:41:58,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303cd6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:41:58, skipping insertion in model container [2020-11-30 00:41:58,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:57" (2/3) ... [2020-11-30 00:41:58,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303cd6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:41:58, skipping insertion in model container [2020-11-30 00:41:58,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:41:58" (3/3) ... [2020-11-30 00:41:58,995 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label39.c [2020-11-30 00:41:59,006 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:41:59,011 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:41:59,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:41:59,062 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:41:59,062 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:41:59,063 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:41:59,063 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:41:59,063 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:41:59,063 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:41:59,063 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:41:59,063 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:41:59,088 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-11-30 00:41:59,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 00:41:59,097 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:41:59,098 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] [2020-11-30 00:41:59,099 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:41:59,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:41:59,107 INFO L82 PathProgramCache]: Analyzing trace with hash 678582746, now seen corresponding path program 1 times [2020-11-30 00:41:59,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:41:59,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072228717] [2020-11-30 00:41:59,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:41:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:41:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:59,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072228717] [2020-11-30 00:41:59,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:41:59,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:41:59,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836250024] [2020-11-30 00:41:59,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:41:59,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:41:59,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:41:59,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:41:59,348 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-11-30 00:42:00,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:00,629 INFO L93 Difference]: Finished difference Result 568 states and 982 transitions. [2020-11-30 00:42:00,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:42:00,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-30 00:42:00,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:00,665 INFO L225 Difference]: With dead ends: 568 [2020-11-30 00:42:00,670 INFO L226 Difference]: Without dead ends: 282 [2020-11-30 00:42:00,679 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 [2020-11-30 00:42:00,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-30 00:42:00,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-11-30 00:42:00,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-30 00:42:00,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2020-11-30 00:42:00,790 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 26 [2020-11-30 00:42:00,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:00,790 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2020-11-30 00:42:00,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:42:00,792 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2020-11-30 00:42:00,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-11-30 00:42:00,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:00,802 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:00,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:42:00,803 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:00,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:00,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1241978682, now seen corresponding path program 1 times [2020-11-30 00:42:00,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:00,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304398232] [2020-11-30 00:42:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:01,046 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:01,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304398232] [2020-11-30 00:42:01,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:42:01,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:42:01,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719835807] [2020-11-30 00:42:01,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:42:01,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:01,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:42:01,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:42:01,056 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2020-11-30 00:42:01,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:01,941 INFO L93 Difference]: Finished difference Result 840 states and 1291 transitions. [2020-11-30 00:42:01,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:42:01,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-11-30 00:42:01,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:01,947 INFO L225 Difference]: With dead ends: 840 [2020-11-30 00:42:01,947 INFO L226 Difference]: Without dead ends: 560 [2020-11-30 00:42:01,949 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 [2020-11-30 00:42:01,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-11-30 00:42:01,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-11-30 00:42:01,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-11-30 00:42:02,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 730 transitions. [2020-11-30 00:42:02,003 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 730 transitions. Word has length 92 [2020-11-30 00:42:02,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:02,004 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 730 transitions. [2020-11-30 00:42:02,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:42:02,004 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 730 transitions. [2020-11-30 00:42:02,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-11-30 00:42:02,007 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:02,007 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:02,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:42:02,007 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:02,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:02,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1929331611, now seen corresponding path program 1 times [2020-11-30 00:42:02,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:02,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425194894] [2020-11-30 00:42:02,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:02,231 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:02,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425194894] [2020-11-30 00:42:02,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:42:02,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:42:02,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348184294] [2020-11-30 00:42:02,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:42:02,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:02,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:42:02,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:42:02,238 INFO L87 Difference]: Start difference. First operand 560 states and 730 transitions. Second operand 3 states. [2020-11-30 00:42:02,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:02,980 INFO L93 Difference]: Finished difference Result 1257 states and 1672 transitions. [2020-11-30 00:42:02,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:42:02,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-11-30 00:42:02,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:02,989 INFO L225 Difference]: With dead ends: 1257 [2020-11-30 00:42:02,989 INFO L226 Difference]: Without dead ends: 699 [2020-11-30 00:42:02,990 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 [2020-11-30 00:42:02,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-11-30 00:42:03,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2020-11-30 00:42:03,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-11-30 00:42:03,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 904 transitions. [2020-11-30 00:42:03,018 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 904 transitions. Word has length 99 [2020-11-30 00:42:03,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:03,018 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 904 transitions. [2020-11-30 00:42:03,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:42:03,032 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 904 transitions. [2020-11-30 00:42:03,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-11-30 00:42:03,035 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:03,036 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:03,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:42:03,036 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:03,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:03,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1086251887, now seen corresponding path program 1 times [2020-11-30 00:42:03,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:03,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995500913] [2020-11-30 00:42:03,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:03,183 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:03,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995500913] [2020-11-30 00:42:03,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:42:03,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:42:03,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31511341] [2020-11-30 00:42:03,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:42:03,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:03,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:42:03,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:42:03,188 INFO L87 Difference]: Start difference. First operand 699 states and 904 transitions. Second operand 3 states. [2020-11-30 00:42:03,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:03,933 INFO L93 Difference]: Finished difference Result 1674 states and 2235 transitions. [2020-11-30 00:42:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:42:03,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-11-30 00:42:03,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:03,942 INFO L225 Difference]: With dead ends: 1674 [2020-11-30 00:42:03,942 INFO L226 Difference]: Without dead ends: 977 [2020-11-30 00:42:03,944 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 [2020-11-30 00:42:03,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-11-30 00:42:03,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2020-11-30 00:42:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-11-30 00:42:03,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1198 transitions. [2020-11-30 00:42:03,970 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1198 transitions. Word has length 103 [2020-11-30 00:42:03,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:03,972 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1198 transitions. [2020-11-30 00:42:03,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:42:03,972 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1198 transitions. [2020-11-30 00:42:03,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-11-30 00:42:03,979 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:03,979 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:03,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:42:03,979 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:03,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:03,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1863464712, now seen corresponding path program 1 times [2020-11-30 00:42:03,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:03,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734438529] [2020-11-30 00:42:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:04,087 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:04,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734438529] [2020-11-30 00:42:04,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:42:04,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:42:04,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094936132] [2020-11-30 00:42:04,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:42:04,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:04,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:42:04,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:42:04,090 INFO L87 Difference]: Start difference. First operand 977 states and 1198 transitions. Second operand 3 states. [2020-11-30 00:42:04,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:04,845 INFO L93 Difference]: Finished difference Result 2230 states and 2834 transitions. [2020-11-30 00:42:04,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:42:04,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-11-30 00:42:04,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:04,854 INFO L225 Difference]: With dead ends: 2230 [2020-11-30 00:42:04,854 INFO L226 Difference]: Without dead ends: 1394 [2020-11-30 00:42:04,856 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 [2020-11-30 00:42:04,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-11-30 00:42:04,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2020-11-30 00:42:04,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2020-11-30 00:42:04,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1712 transitions. [2020-11-30 00:42:04,895 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1712 transitions. Word has length 113 [2020-11-30 00:42:04,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:04,896 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1712 transitions. [2020-11-30 00:42:04,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:42:04,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1712 transitions. [2020-11-30 00:42:04,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-11-30 00:42:04,898 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:04,899 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:04,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:42:04,900 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:04,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:04,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1404134794, now seen corresponding path program 1 times [2020-11-30 00:42:04,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:04,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620047636] [2020-11-30 00:42:04,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:05,196 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-11-30 00:42:05,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620047636] [2020-11-30 00:42:05,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584798616] [2020-11-30 00:42:05,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/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 [2020-11-30 00:42:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:05,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:42:05,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:05,629 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-11-30 00:42:05,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:42:05,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-30 00:42:05,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37635158] [2020-11-30 00:42:05,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:42:05,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:05,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:42:05,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:42:05,632 INFO L87 Difference]: Start difference. First operand 1394 states and 1712 transitions. Second operand 3 states. [2020-11-30 00:42:06,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:06,566 INFO L93 Difference]: Finished difference Result 2230 states and 2689 transitions. [2020-11-30 00:42:06,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:42:06,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2020-11-30 00:42:06,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:06,590 INFO L225 Difference]: With dead ends: 2230 [2020-11-30 00:42:06,590 INFO L226 Difference]: Without dead ends: 2228 [2020-11-30 00:42:06,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:42:06,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2020-11-30 00:42:06,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1116. [2020-11-30 00:42:06,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-11-30 00:42:06,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1347 transitions. [2020-11-30 00:42:06,634 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1347 transitions. Word has length 174 [2020-11-30 00:42:06,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:06,634 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1347 transitions. [2020-11-30 00:42:06,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:42:06,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1347 transitions. [2020-11-30 00:42:06,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-11-30 00:42:06,637 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:06,638 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:06,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-30 00:42:06,857 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:06,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:06,858 INFO L82 PathProgramCache]: Analyzing trace with hash 792979620, now seen corresponding path program 1 times [2020-11-30 00:42:06,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:06,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522505674] [2020-11-30 00:42:06,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:07,210 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:07,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522505674] [2020-11-30 00:42:07,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:42:07,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:42:07,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109466513] [2020-11-30 00:42:07,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:42:07,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:07,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:42:07,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:42:07,212 INFO L87 Difference]: Start difference. First operand 1116 states and 1347 transitions. Second operand 7 states. [2020-11-30 00:42:08,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:08,023 INFO L93 Difference]: Finished difference Result 2146 states and 2603 transitions. [2020-11-30 00:42:08,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:42:08,023 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2020-11-30 00:42:08,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:08,030 INFO L225 Difference]: With dead ends: 2146 [2020-11-30 00:42:08,031 INFO L226 Difference]: Without dead ends: 1116 [2020-11-30 00:42:08,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:42:08,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-11-30 00:42:08,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2020-11-30 00:42:08,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-11-30 00:42:08,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1340 transitions. [2020-11-30 00:42:08,065 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1340 transitions. Word has length 179 [2020-11-30 00:42:08,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:08,065 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1340 transitions. [2020-11-30 00:42:08,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:42:08,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1340 transitions. [2020-11-30 00:42:08,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-11-30 00:42:08,069 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:08,069 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:08,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:42:08,070 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:08,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:08,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1935726902, now seen corresponding path program 1 times [2020-11-30 00:42:08,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:08,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085949548] [2020-11-30 00:42:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:08,249 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:08,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085949548] [2020-11-30 00:42:08,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:42:08,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:42:08,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147173530] [2020-11-30 00:42:08,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:42:08,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:08,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:42:08,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:42:08,251 INFO L87 Difference]: Start difference. First operand 1116 states and 1340 transitions. Second operand 3 states. [2020-11-30 00:42:09,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:09,041 INFO L93 Difference]: Finished difference Result 2369 states and 2912 transitions. [2020-11-30 00:42:09,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:42:09,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2020-11-30 00:42:09,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:09,051 INFO L225 Difference]: With dead ends: 2369 [2020-11-30 00:42:09,051 INFO L226 Difference]: Without dead ends: 1394 [2020-11-30 00:42:09,053 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 [2020-11-30 00:42:09,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-11-30 00:42:09,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-11-30 00:42:09,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-11-30 00:42:09,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1455 transitions. [2020-11-30 00:42:09,085 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1455 transitions. Word has length 215 [2020-11-30 00:42:09,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:09,085 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1455 transitions. [2020-11-30 00:42:09,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:42:09,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1455 transitions. [2020-11-30 00:42:09,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-11-30 00:42:09,091 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:09,091 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:09,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:42:09,092 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:09,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:09,092 INFO L82 PathProgramCache]: Analyzing trace with hash -755561383, now seen corresponding path program 1 times [2020-11-30 00:42:09,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:09,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994911007] [2020-11-30 00:42:09,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:09,528 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 24 proven. 125 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-30 00:42:09,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994911007] [2020-11-30 00:42:09,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054328815] [2020-11-30 00:42:09,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/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 [2020-11-30 00:42:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:09,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:42:09,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-11-30 00:42:09,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:42:09,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-30 00:42:09,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42409468] [2020-11-30 00:42:09,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:42:09,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:09,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:42:09,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:42:09,799 INFO L87 Difference]: Start difference. First operand 1255 states and 1455 transitions. Second operand 3 states. [2020-11-30 00:42:10,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:10,532 INFO L93 Difference]: Finished difference Result 2647 states and 3142 transitions. [2020-11-30 00:42:10,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:42:10,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2020-11-30 00:42:10,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:10,541 INFO L225 Difference]: With dead ends: 2647 [2020-11-30 00:42:10,541 INFO L226 Difference]: Without dead ends: 1533 [2020-11-30 00:42:10,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:42:10,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-11-30 00:42:10,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1394. [2020-11-30 00:42:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2020-11-30 00:42:10,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1609 transitions. [2020-11-30 00:42:10,581 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1609 transitions. Word has length 274 [2020-11-30 00:42:10,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:10,581 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1609 transitions. [2020-11-30 00:42:10,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:42:10,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1609 transitions. [2020-11-30 00:42:10,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-11-30 00:42:10,589 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:10,589 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:10,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:10,811 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:10,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:10,811 INFO L82 PathProgramCache]: Analyzing trace with hash 255223347, now seen corresponding path program 1 times [2020-11-30 00:42:10,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:10,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323982796] [2020-11-30 00:42:10,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:11,099 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-11-30 00:42:11,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323982796] [2020-11-30 00:42:11,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:42:11,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:42:11,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742851767] [2020-11-30 00:42:11,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:42:11,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:11,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:42:11,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:42:11,102 INFO L87 Difference]: Start difference. First operand 1394 states and 1609 transitions. Second operand 3 states. [2020-11-30 00:42:11,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:11,850 INFO L93 Difference]: Finished difference Result 2647 states and 3073 transitions. [2020-11-30 00:42:11,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:42:11,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2020-11-30 00:42:11,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:11,861 INFO L225 Difference]: With dead ends: 2647 [2020-11-30 00:42:11,861 INFO L226 Difference]: Without dead ends: 1394 [2020-11-30 00:42:11,863 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 [2020-11-30 00:42:11,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-11-30 00:42:11,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-11-30 00:42:11,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-11-30 00:42:11,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1386 transitions. [2020-11-30 00:42:11,891 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1386 transitions. Word has length 325 [2020-11-30 00:42:11,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:11,892 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1386 transitions. [2020-11-30 00:42:11,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:42:11,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1386 transitions. [2020-11-30 00:42:11,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-11-30 00:42:11,899 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:11,899 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:11,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 00:42:11,900 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:11,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:11,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1160090979, now seen corresponding path program 1 times [2020-11-30 00:42:11,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:11,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46535001] [2020-11-30 00:42:11,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:12,128 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-11-30 00:42:12,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46535001] [2020-11-30 00:42:12,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:42:12,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:42:12,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981872423] [2020-11-30 00:42:12,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:42:12,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:12,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:42:12,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:42:12,131 INFO L87 Difference]: Start difference. First operand 1255 states and 1386 transitions. Second operand 3 states. [2020-11-30 00:42:12,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:12,933 INFO L93 Difference]: Finished difference Result 3203 states and 3560 transitions. [2020-11-30 00:42:12,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:42:12,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 327 [2020-11-30 00:42:12,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:12,945 INFO L225 Difference]: With dead ends: 3203 [2020-11-30 00:42:12,945 INFO L226 Difference]: Without dead ends: 2089 [2020-11-30 00:42:12,947 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 [2020-11-30 00:42:12,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-11-30 00:42:12,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2020-11-30 00:42:12,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-11-30 00:42:12,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2280 transitions. [2020-11-30 00:42:12,996 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2280 transitions. Word has length 327 [2020-11-30 00:42:12,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:12,997 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2280 transitions. [2020-11-30 00:42:12,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:42:13,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2280 transitions. [2020-11-30 00:42:13,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-11-30 00:42:13,011 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:13,012 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:13,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 00:42:13,012 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:13,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:13,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1385070843, now seen corresponding path program 1 times [2020-11-30 00:42:13,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:13,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301237746] [2020-11-30 00:42:13,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 17 proven. 54 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-11-30 00:42:13,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301237746] [2020-11-30 00:42:13,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726918876] [2020-11-30 00:42:13,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/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 [2020-11-30 00:42:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:13,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:42:13,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:13,699 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-11-30 00:42:13,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:42:13,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 00:42:13,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702159129] [2020-11-30 00:42:13,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:42:13,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:13,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:42:13,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:42:13,702 INFO L87 Difference]: Start difference. First operand 2089 states and 2280 transitions. Second operand 3 states. [2020-11-30 00:42:14,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:14,525 INFO L93 Difference]: Finished difference Result 4313 states and 4722 transitions. [2020-11-30 00:42:14,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:42:14,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 340 [2020-11-30 00:42:14,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:14,526 INFO L225 Difference]: With dead ends: 4313 [2020-11-30 00:42:14,527 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:42:14,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:42:14,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:42:14,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:42:14,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:42:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:42:14,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 340 [2020-11-30 00:42:14,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:14,532 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:42:14,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:42:14,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:42:14,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:42:14,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-30 00:42:14,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:42:15,107 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-11-30 00:42:15,391 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-11-30 00:42:15,399 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-11-30 00:42:15,399 INFO L274 CegarLoopResult]: For program point L564(lines 564 582) no Hoare annotation was computed. [2020-11-30 00:42:15,399 INFO L274 CegarLoopResult]: For program point L333(lines 333 582) no Hoare annotation was computed. [2020-11-30 00:42:15,399 INFO L274 CegarLoopResult]: For program point L367(lines 367 582) no Hoare annotation was computed. [2020-11-30 00:42:15,400 INFO L274 CegarLoopResult]: For program point L301(lines 301 582) no Hoare annotation was computed. [2020-11-30 00:42:15,400 INFO L274 CegarLoopResult]: For program point L235(lines 235 582) no Hoare annotation was computed. [2020-11-30 00:42:15,400 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,400 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,400 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,400 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,400 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,400 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,400 INFO L274 CegarLoopResult]: For program point L533(lines 533 582) no Hoare annotation was computed. [2020-11-30 00:42:15,400 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L567(lines 567 582) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L435(lines 435 582) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L336(lines 336 582) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L270(lines 270 582) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L403(lines 403 582) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L370(lines 370 582) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,401 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L536(lines 536 582) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L503(lines 503 582) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L470(lines 470 582) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L339(lines 339 582) no Hoare annotation was computed. [2020-11-30 00:42:15,402 INFO L274 CegarLoopResult]: For program point L306(lines 306 582) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L241(lines 241 582) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L539(lines 539 582) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L440(lines 440 582) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L275(lines 275 582) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-30 00:42:15,403 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L573(lines 573 582) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L408(lines 408 582) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L375(lines 375 582) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L475(lines 475 582) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,404 INFO L274 CegarLoopResult]: For program point L509(lines 509 582) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L311(lines 311 582) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L345(lines 345 582) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L246(lines 246 582) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L544(lines 544 582) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,405 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L446(lines 446 582) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L413(lines 413 582) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L380(lines 380 582) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L281(lines 281 582) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L579(lines 579 582) no Hoare annotation was computed. [2020-11-30 00:42:15,406 INFO L274 CegarLoopResult]: For program point L249(lines 249 582) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L514(lines 514 582) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L481(lines 481 582) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L316(lines 316 582) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L350(lines 350 582) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-30 00:42:15,407 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-30 00:42:15,408 INFO L270 CegarLoopResult]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse1 (= ~a10~0 0)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and (<= 23 ~a1~0) .cse0 .cse1 .cse2) (and .cse0 (<= 4 ~a10~0) .cse2 .cse3) (and .cse0 (= ~a10~0 2) .cse2 .cse3) (and (= ~a10~0 3) .cse0 .cse2 .cse3) (and .cse0 .cse1 .cse2 (<= ~a19~0 6)) (and .cse0 (<= 9 ~a19~0) .cse1 .cse2) (and (= ~a10~0 1) .cse0 .cse2))) [2020-11-30 00:42:15,408 INFO L274 CegarLoopResult]: For program point L550(lines 550 582) no Hoare annotation was computed. [2020-11-30 00:42:15,408 INFO L274 CegarLoopResult]: For program point L418(lines 418 582) no Hoare annotation was computed. [2020-11-30 00:42:15,408 INFO L274 CegarLoopResult]: For program point L385(lines 385 582) no Hoare annotation was computed. [2020-11-30 00:42:15,408 INFO L274 CegarLoopResult]: For program point L220(lines 220 582) no Hoare annotation was computed. [2020-11-30 00:42:15,408 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,408 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,408 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,409 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,409 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,409 INFO L274 CegarLoopResult]: For program point L452(lines 452 582) no Hoare annotation was computed. [2020-11-30 00:42:15,409 INFO L274 CegarLoopResult]: For program point L287(lines 287 582) no Hoare annotation was computed. [2020-11-30 00:42:15,413 INFO L274 CegarLoopResult]: For program point L254(lines 254 582) no Hoare annotation was computed. [2020-11-30 00:42:15,413 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-30 00:42:15,413 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-30 00:42:15,413 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-30 00:42:15,413 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-30 00:42:15,413 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-30 00:42:15,413 INFO L274 CegarLoopResult]: For program point L519(lines 519 582) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point L486(lines 486 582) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L277 CegarLoopResult]: At program point L586(lines 586 602) the Hoare annotation is: true [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point L388(lines 388 582) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point L355(lines 355 582) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point L322(lines 322 582) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-30 00:42:15,414 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L555(lines 555 582) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L225(lines 225 582) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L424(lines 424 582) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L259(lines 259 582) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L524(lines 524 582) no Hoare annotation was computed. [2020-11-30 00:42:15,415 INFO L274 CegarLoopResult]: For program point L491(lines 491 582) no Hoare annotation was computed. [2020-11-30 00:42:15,416 INFO L274 CegarLoopResult]: For program point L458(lines 458 582) no Hoare annotation was computed. [2020-11-30 00:42:15,416 INFO L274 CegarLoopResult]: For program point L293(lines 293 582) no Hoare annotation was computed. [2020-11-30 00:42:15,416 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-30 00:42:15,416 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-30 00:42:15,416 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-30 00:42:15,416 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-30 00:42:15,416 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-30 00:42:15,416 INFO L274 CegarLoopResult]: For program point L558(lines 558 582) no Hoare annotation was computed. [2020-11-30 00:42:15,417 INFO L274 CegarLoopResult]: For program point L393(lines 393 582) no Hoare annotation was computed. [2020-11-30 00:42:15,417 INFO L274 CegarLoopResult]: For program point L327(lines 327 582) no Hoare annotation was computed. [2020-11-30 00:42:15,417 INFO L270 CegarLoopResult]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse1 (= ~a10~0 0)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and (<= 23 ~a1~0) .cse0 .cse1 .cse2) (and .cse0 (<= 4 ~a10~0) .cse2 .cse3) (and .cse0 (= ~a10~0 2) .cse2 .cse3) (and (= ~a10~0 3) .cse0 .cse2 .cse3) (and .cse0 .cse1 .cse2 (<= ~a19~0 6)) (and .cse0 (<= 9 ~a19~0) .cse1 .cse2) (and (= ~a10~0 1) .cse0 .cse2))) [2020-11-30 00:42:15,417 INFO L274 CegarLoopResult]: For program point L361(lines 361 582) no Hoare annotation was computed. [2020-11-30 00:42:15,417 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,417 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,417 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,417 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,417 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-30 00:42:15,417 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,417 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,418 INFO L274 CegarLoopResult]: For program point L527(lines 527 582) no Hoare annotation was computed. [2020-11-30 00:42:15,418 INFO L274 CegarLoopResult]: For program point L296(lines 296 582) no Hoare annotation was computed. [2020-11-30 00:42:15,418 INFO L274 CegarLoopResult]: For program point L230(lines 230 582) no Hoare annotation was computed. [2020-11-30 00:42:15,426 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-30 00:42:15,426 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-30 00:42:15,426 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-30 00:42:15,427 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-30 00:42:15,427 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-30 00:42:15,427 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-30 00:42:15,427 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:42:15,427 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:42:15,427 INFO L274 CegarLoopResult]: For program point L429(lines 429 582) no Hoare annotation was computed. [2020-11-30 00:42:15,427 INFO L274 CegarLoopResult]: For program point L330(lines 330 582) no Hoare annotation was computed. [2020-11-30 00:42:15,427 INFO L274 CegarLoopResult]: For program point L264(lines 264 582) no Hoare annotation was computed. [2020-11-30 00:42:15,427 INFO L274 CegarLoopResult]: For program point L364(lines 364 582) no Hoare annotation was computed. [2020-11-30 00:42:15,427 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,428 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,428 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,428 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,428 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,428 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2020-11-30 00:42:15,428 INFO L274 CegarLoopResult]: For program point L497(lines 497 582) no Hoare annotation was computed. [2020-11-30 00:42:15,428 INFO L274 CegarLoopResult]: For program point L464(lines 464 582) no Hoare annotation was computed. [2020-11-30 00:42:15,428 INFO L274 CegarLoopResult]: For program point L398(lines 398 582) no Hoare annotation was computed. [2020-11-30 00:42:15,429 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-30 00:42:15,429 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-30 00:42:15,429 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-30 00:42:15,429 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-30 00:42:15,429 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-30 00:42:15,429 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-30 00:42:15,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:42:15 BoogieIcfgContainer [2020-11-30 00:42:15,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:42:15,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:42:15,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:42:15,450 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:42:15,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:41:58" (3/4) ... [2020-11-30 00:42:15,454 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:42:15,476 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:42:15,478 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:42:15,479 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:42:15,480 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:42:15,600 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ff1fbb10-8930-4e65-9024-91dd3e1b597d/bin/uautomizer/witness.graphml [2020-11-30 00:42:15,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:42:15,602 INFO L168 Benchmark]: Toolchain (without parser) took 19217.31 ms. Allocated memory was 83.9 MB in the beginning and 362.8 MB in the end (delta: 278.9 MB). Free memory was 51.6 MB in the beginning and 310.4 MB in the end (delta: -258.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:15,602 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory is still 42.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:42:15,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.24 ms. Allocated memory is still 83.9 MB. Free memory was 51.4 MB in the beginning and 44.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:15,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.86 ms. Allocated memory is still 83.9 MB. Free memory was 44.5 MB in the beginning and 36.6 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:15,603 INFO L168 Benchmark]: Boogie Preprocessor took 100.11 ms. Allocated memory was 83.9 MB in the beginning and 109.1 MB in the end (delta: 25.2 MB). Free memory was 36.6 MB in the beginning and 81.8 MB in the end (delta: -45.2 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:15,604 INFO L168 Benchmark]: RCFGBuilder took 1679.66 ms. Allocated memory is still 109.1 MB. Free memory was 81.8 MB in the beginning and 70.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 53.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:15,604 INFO L168 Benchmark]: TraceAbstraction took 16461.94 ms. Allocated memory was 109.1 MB in the beginning and 362.8 MB in the end (delta: 253.8 MB). Free memory was 70.2 MB in the beginning and 326.3 MB in the end (delta: -256.1 MB). Peak memory consumption was 207.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:15,605 INFO L168 Benchmark]: Witness Printer took 150.63 ms. Allocated memory is still 362.8 MB. Free memory was 326.3 MB in the beginning and 310.4 MB in the end (delta: 15.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:15,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory is still 42.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 719.24 ms. Allocated memory is still 83.9 MB. Free memory was 51.4 MB in the beginning and 44.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.86 ms. Allocated memory is still 83.9 MB. Free memory was 44.5 MB in the beginning and 36.6 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 100.11 ms. Allocated memory was 83.9 MB in the beginning and 109.1 MB in the end (delta: 25.2 MB). Free memory was 36.6 MB in the beginning and 81.8 MB in the end (delta: -45.2 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1679.66 ms. Allocated memory is still 109.1 MB. Free memory was 81.8 MB in the beginning and 70.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 53.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16461.94 ms. Allocated memory was 109.1 MB in the beginning and 362.8 MB in the end (delta: 253.8 MB). Free memory was 70.2 MB in the beginning and 326.3 MB in the end (delta: -256.1 MB). Peak memory consumption was 207.5 MB. Max. memory is 16.1 GB. * Witness Printer took 150.63 ms. Allocated memory is still 362.8 MB. Free memory was 326.3 MB in the beginning and 310.4 MB in the end (delta: 15.9 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: 592]: Loop Invariant Derived loop invariant: ((((((((23 <= a1 && 14 == a4) && a10 == 0) && a12 == 0) || (((14 == a4 && 4 <= a10) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a10 == 0) && a12 == 0) && a19 <= 6)) || (((14 == a4 && 9 <= a19) && a10 == 0) && a12 == 0)) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((23 <= a1 && 14 == a4) && a10 == 0) && a12 == 0) || (((14 == a4 && 4 <= a10) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a10 == 0) && a12 == 0) && a19 <= 6)) || (((14 == a4 && 9 <= a19) && a10 == 0) && a12 == 0)) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.6s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1481 SDtfs, 1260 SDslu, 58 SDs, 0 SdLazy, 4551 SolverSat, 692 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 823 GetRequests, 800 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2089occurred 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: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 1529 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 179 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1084 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 194 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 3055 NumberOfCodeBlocks, 3055 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3040 ConstructedInterpolants, 0 QuantifiedInterpolants, 2706518 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1171 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 1953/2201 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...