./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label06.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_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label06.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/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 296b9a8bd43d1f84683291887dc52c74499fe706 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:53:38,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:53:38,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:53:38,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:53:38,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:53:38,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:53:38,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:53:38,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:53:38,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:53:38,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:53:38,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:53:38,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:53:38,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:53:38,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:53:38,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:53:38,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:53:38,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:53:38,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:53:38,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:53:38,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:53:38,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:53:38,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:53:38,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:53:38,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:53:38,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:53:38,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:53:38,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:53:38,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:53:38,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:53:38,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:53:38,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:53:38,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:53:38,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:53:38,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:53:38,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:53:38,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:53:38,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:53:38,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:53:38,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:53:38,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:53:38,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:53:38,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:53:38,790 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:53:38,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:53:38,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:53:38,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:53:38,794 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:53:38,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:53:38,795 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:53:38,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:53:38,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:53:38,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:53:38,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:53:38,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:53:38,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:53:38,797 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:53:38,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:53:38,798 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:53:38,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:53:38,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:53:38,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:53:38,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:53:38,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:53:38,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:53:38,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:53:38,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:53:38,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:53:38,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:53:38,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:53:38,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:53:38,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:53:38,802 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_3623cbb5-d93f-4b19-b352-725fe721f90d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 296b9a8bd43d1f84683291887dc52c74499fe706 [2020-11-29 20:53:39,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:53:39,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:53:39,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:53:39,267 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:53:39,268 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:53:39,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem02_label06.c [2020-11-29 20:53:39,344 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/data/5b9c28b12/9875d0182ed54b72844daadc65212e65/FLAG95f889e8f [2020-11-29 20:53:40,027 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:53:40,027 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/sv-benchmarks/c/eca-rers2012/Problem02_label06.c [2020-11-29 20:53:40,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/data/5b9c28b12/9875d0182ed54b72844daadc65212e65/FLAG95f889e8f [2020-11-29 20:53:40,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/data/5b9c28b12/9875d0182ed54b72844daadc65212e65 [2020-11-29 20:53:40,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:53:40,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:53:40,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:53:40,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:53:40,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:53:40,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:53:40" (1/1) ... [2020-11-29 20:53:40,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484eca41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:40, skipping insertion in model container [2020-11-29 20:53:40,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:53:40" (1/1) ... [2020-11-29 20:53:40,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:53:40,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:53:40,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:53:40,973 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:53:41,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:53:41,212 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:53:41,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:41 WrapperNode [2020-11-29 20:53:41,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:53:41,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:53:41,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:53:41,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:53:41,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:41" (1/1) ... [2020-11-29 20:53:41,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:41" (1/1) ... [2020-11-29 20:53:41,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:53:41,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:53:41,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:53:41,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:53:41,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:41" (1/1) ... [2020-11-29 20:53:41,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:41" (1/1) ... [2020-11-29 20:53:41,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:41" (1/1) ... [2020-11-29 20:53:41,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:41" (1/1) ... [2020-11-29 20:53:41,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:41" (1/1) ... [2020-11-29 20:53:41,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:41" (1/1) ... [2020-11-29 20:53:41,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:41" (1/1) ... [2020-11-29 20:53:41,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:53:41,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:53:41,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:53:41,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:53:41,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:53:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:53:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:53:41,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:53:41,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:53:43,216 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:53:43,217 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 20:53:43,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:53:43 BoogieIcfgContainer [2020-11-29 20:53:43,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:53:43,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:53:43,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:53:43,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:53:43,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:53:40" (1/3) ... [2020-11-29 20:53:43,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee8c8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:53:43, skipping insertion in model container [2020-11-29 20:53:43,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:53:41" (2/3) ... [2020-11-29 20:53:43,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee8c8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:53:43, skipping insertion in model container [2020-11-29 20:53:43,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:53:43" (3/3) ... [2020-11-29 20:53:43,231 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label06.c [2020-11-29 20:53:43,244 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:53:43,250 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:53:43,264 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:53:43,295 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:53:43,296 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:53:43,296 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:53:43,296 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:53:43,296 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:53:43,297 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:53:43,297 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:53:43,297 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:53:43,320 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-11-29 20:53:43,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-11-29 20:53:43,337 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:43,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:43,339 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:43,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:43,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1439061899, now seen corresponding path program 1 times [2020-11-29 20:53:43,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:43,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142505057] [2020-11-29 20:53:43,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:44,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:53:44,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142505057] [2020-11-29 20:53:44,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:53:44,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:53:44,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461919821] [2020-11-29 20:53:44,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:53:44,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:44,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:53:44,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:44,035 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-11-29 20:53:45,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:45,299 INFO L93 Difference]: Finished difference Result 597 states and 1031 transitions. [2020-11-29 20:53:45,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:53:45,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-11-29 20:53:45,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:53:45,330 INFO L225 Difference]: With dead ends: 597 [2020-11-29 20:53:45,330 INFO L226 Difference]: Without dead ends: 305 [2020-11-29 20:53:45,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:45,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-11-29 20:53:45,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2020-11-29 20:53:45,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-11-29 20:53:45,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 464 transitions. [2020-11-29 20:53:45,410 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 464 transitions. Word has length 140 [2020-11-29 20:53:45,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:53:45,411 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 464 transitions. [2020-11-29 20:53:45,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:53:45,412 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 464 transitions. [2020-11-29 20:53:45,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-11-29 20:53:45,417 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:45,417 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:45,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:53:45,418 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:45,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:45,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1659328717, now seen corresponding path program 1 times [2020-11-29 20:53:45,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:45,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57359122] [2020-11-29 20:53:45,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:53:45,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57359122] [2020-11-29 20:53:45,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:53:45,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:53:45,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822942159] [2020-11-29 20:53:45,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:53:45,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:45,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:53:45,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:45,573 INFO L87 Difference]: Start difference. First operand 305 states and 464 transitions. Second operand 3 states. [2020-11-29 20:53:46,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:46,048 INFO L93 Difference]: Finished difference Result 599 states and 913 transitions. [2020-11-29 20:53:46,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:53:46,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-11-29 20:53:46,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:53:46,053 INFO L225 Difference]: With dead ends: 599 [2020-11-29 20:53:46,053 INFO L226 Difference]: Without dead ends: 296 [2020-11-29 20:53:46,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:46,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-11-29 20:53:46,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2020-11-29 20:53:46,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-11-29 20:53:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 421 transitions. [2020-11-29 20:53:46,080 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 421 transitions. Word has length 151 [2020-11-29 20:53:46,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:53:46,080 INFO L481 AbstractCegarLoop]: Abstraction has 296 states and 421 transitions. [2020-11-29 20:53:46,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:53:46,081 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 421 transitions. [2020-11-29 20:53:46,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-11-29 20:53:46,085 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:46,086 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:46,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:53:46,086 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:46,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:46,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1594990984, now seen corresponding path program 1 times [2020-11-29 20:53:46,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:46,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556169894] [2020-11-29 20:53:46,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:46,191 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:53:46,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556169894] [2020-11-29 20:53:46,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:53:46,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:53:46,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610233285] [2020-11-29 20:53:46,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:53:46,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:46,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:53:46,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:46,194 INFO L87 Difference]: Start difference. First operand 296 states and 421 transitions. Second operand 3 states. [2020-11-29 20:53:47,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:47,025 INFO L93 Difference]: Finished difference Result 872 states and 1244 transitions. [2020-11-29 20:53:47,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:53:47,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-11-29 20:53:47,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:53:47,032 INFO L225 Difference]: With dead ends: 872 [2020-11-29 20:53:47,032 INFO L226 Difference]: Without dead ends: 578 [2020-11-29 20:53:47,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:47,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-11-29 20:53:47,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 438. [2020-11-29 20:53:47,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-11-29 20:53:47,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 573 transitions. [2020-11-29 20:53:47,068 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 573 transitions. Word has length 158 [2020-11-29 20:53:47,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:53:47,069 INFO L481 AbstractCegarLoop]: Abstraction has 438 states and 573 transitions. [2020-11-29 20:53:47,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:53:47,069 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 573 transitions. [2020-11-29 20:53:47,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-11-29 20:53:47,072 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:47,073 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:47,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:53:47,073 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:47,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:47,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1840922299, now seen corresponding path program 1 times [2020-11-29 20:53:47,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:47,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691067990] [2020-11-29 20:53:47,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:53:47,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691067990] [2020-11-29 20:53:47,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:53:47,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:53:47,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862595773] [2020-11-29 20:53:47,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:53:47,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:47,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:53:47,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:47,193 INFO L87 Difference]: Start difference. First operand 438 states and 573 transitions. Second operand 3 states. [2020-11-29 20:53:48,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:48,025 INFO L93 Difference]: Finished difference Result 1017 states and 1348 transitions. [2020-11-29 20:53:48,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:53:48,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-11-29 20:53:48,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:53:48,031 INFO L225 Difference]: With dead ends: 1017 [2020-11-29 20:53:48,031 INFO L226 Difference]: Without dead ends: 581 [2020-11-29 20:53:48,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:48,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-11-29 20:53:48,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 579. [2020-11-29 20:53:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-11-29 20:53:48,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 754 transitions. [2020-11-29 20:53:48,078 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 754 transitions. Word has length 163 [2020-11-29 20:53:48,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:53:48,079 INFO L481 AbstractCegarLoop]: Abstraction has 579 states and 754 transitions. [2020-11-29 20:53:48,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:53:48,080 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 754 transitions. [2020-11-29 20:53:48,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-11-29 20:53:48,087 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:48,087 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:48,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:53:48,088 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:48,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:48,089 INFO L82 PathProgramCache]: Analyzing trace with hash -736311237, now seen corresponding path program 1 times [2020-11-29 20:53:48,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:48,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393790061] [2020-11-29 20:53:48,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:48,729 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:53:48,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393790061] [2020-11-29 20:53:48,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227831643] [2020-11-29 20:53:48,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:53:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:48,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:53:48,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:53:49,143 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 20:53:49,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:53:49,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 20:53:49,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387177117] [2020-11-29 20:53:49,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:53:49,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:49,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:53:49,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:53:49,148 INFO L87 Difference]: Start difference. First operand 579 states and 754 transitions. Second operand 3 states. [2020-11-29 20:53:50,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:50,050 INFO L93 Difference]: Finished difference Result 1585 states and 2049 transitions. [2020-11-29 20:53:50,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:53:50,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-11-29 20:53:50,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:53:50,062 INFO L225 Difference]: With dead ends: 1585 [2020-11-29 20:53:50,062 INFO L226 Difference]: Without dead ends: 1008 [2020-11-29 20:53:50,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:53:50,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2020-11-29 20:53:50,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 867. [2020-11-29 20:53:50,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-11-29 20:53:50,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1074 transitions. [2020-11-29 20:53:50,115 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1074 transitions. Word has length 167 [2020-11-29 20:53:50,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:53:50,116 INFO L481 AbstractCegarLoop]: Abstraction has 867 states and 1074 transitions. [2020-11-29 20:53:50,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:53:50,116 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1074 transitions. [2020-11-29 20:53:50,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-11-29 20:53:50,121 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:50,121 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:50,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:53:50,338 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:50,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:50,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1060993103, now seen corresponding path program 1 times [2020-11-29 20:53:50,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:50,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509176272] [2020-11-29 20:53:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 20:53:50,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509176272] [2020-11-29 20:53:50,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:53:50,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:53:50,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229905137] [2020-11-29 20:53:50,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:53:50,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:50,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:53:50,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:50,517 INFO L87 Difference]: Start difference. First operand 867 states and 1074 transitions. Second operand 3 states. [2020-11-29 20:53:51,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:51,301 INFO L93 Difference]: Finished difference Result 1726 states and 2137 transitions. [2020-11-29 20:53:51,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:53:51,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-11-29 20:53:51,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:53:51,307 INFO L225 Difference]: With dead ends: 1726 [2020-11-29 20:53:51,308 INFO L226 Difference]: Without dead ends: 861 [2020-11-29 20:53:51,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-11-29 20:53:51,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2020-11-29 20:53:51,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-11-29 20:53:51,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 985 transitions. [2020-11-29 20:53:51,348 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 985 transitions. Word has length 171 [2020-11-29 20:53:51,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:53:51,350 INFO L481 AbstractCegarLoop]: Abstraction has 861 states and 985 transitions. [2020-11-29 20:53:51,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:53:51,350 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 985 transitions. [2020-11-29 20:53:51,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-11-29 20:53:51,356 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:51,357 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:51,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:53:51,365 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:51,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:51,367 INFO L82 PathProgramCache]: Analyzing trace with hash 534947636, now seen corresponding path program 1 times [2020-11-29 20:53:51,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:51,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255587064] [2020-11-29 20:53:51,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 20:53:51,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255587064] [2020-11-29 20:53:51,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:53:51,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:53:51,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880335071] [2020-11-29 20:53:51,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:53:51,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:51,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:53:51,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:51,573 INFO L87 Difference]: Start difference. First operand 861 states and 985 transitions. Second operand 3 states. [2020-11-29 20:53:52,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:52,443 INFO L93 Difference]: Finished difference Result 2280 states and 2588 transitions. [2020-11-29 20:53:52,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:53:52,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2020-11-29 20:53:52,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:53:52,450 INFO L225 Difference]: With dead ends: 2280 [2020-11-29 20:53:52,450 INFO L226 Difference]: Without dead ends: 858 [2020-11-29 20:53:52,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:52,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-11-29 20:53:52,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2020-11-29 20:53:52,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 858 states. [2020-11-29 20:53:52,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 933 transitions. [2020-11-29 20:53:52,478 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 933 transitions. Word has length 233 [2020-11-29 20:53:52,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:53:52,479 INFO L481 AbstractCegarLoop]: Abstraction has 858 states and 933 transitions. [2020-11-29 20:53:52,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:53:52,479 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 933 transitions. [2020-11-29 20:53:52,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-11-29 20:53:52,485 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:52,485 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:52,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 20:53:52,486 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:52,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:52,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1559837765, now seen corresponding path program 1 times [2020-11-29 20:53:52,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:52,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705574003] [2020-11-29 20:53:52,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:52,677 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-11-29 20:53:52,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705574003] [2020-11-29 20:53:52,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972527686] [2020-11-29 20:53:52,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:53:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:52,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:53:52,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:53:52,963 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-11-29 20:53:52,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:53:52,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-29 20:53:52,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116947300] [2020-11-29 20:53:52,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:53:52,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:52,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:53:52,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:53:52,967 INFO L87 Difference]: Start difference. First operand 858 states and 933 transitions. Second operand 3 states. [2020-11-29 20:53:53,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:53,721 INFO L93 Difference]: Finished difference Result 2279 states and 2476 transitions. [2020-11-29 20:53:53,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:53:53,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2020-11-29 20:53:53,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:53:53,733 INFO L225 Difference]: With dead ends: 2279 [2020-11-29 20:53:53,733 INFO L226 Difference]: Without dead ends: 1423 [2020-11-29 20:53:53,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:53:53,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2020-11-29 20:53:53,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1278. [2020-11-29 20:53:53,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-11-29 20:53:53,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1387 transitions. [2020-11-29 20:53:53,780 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1387 transitions. Word has length 243 [2020-11-29 20:53:53,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:53:53,781 INFO L481 AbstractCegarLoop]: Abstraction has 1278 states and 1387 transitions. [2020-11-29 20:53:53,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:53:53,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1387 transitions. [2020-11-29 20:53:53,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-11-29 20:53:53,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:53,788 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:54,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:53:54,012 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:54,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:54,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1418039631, now seen corresponding path program 1 times [2020-11-29 20:53:54,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:54,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179129747] [2020-11-29 20:53:54,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:54,254 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 80 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-11-29 20:53:54,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179129747] [2020-11-29 20:53:54,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405224922] [2020-11-29 20:53:54,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:53:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:54,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:53:54,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:53:54,598 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-11-29 20:53:54,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:53:54,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 20:53:54,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007595082] [2020-11-29 20:53:54,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:53:54,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:54,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:53:54,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:53:54,605 INFO L87 Difference]: Start difference. First operand 1278 states and 1387 transitions. Second operand 3 states. [2020-11-29 20:53:55,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:55,380 INFO L93 Difference]: Finished difference Result 2414 states and 2627 transitions. [2020-11-29 20:53:55,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:53:55,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2020-11-29 20:53:55,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:53:55,389 INFO L225 Difference]: With dead ends: 2414 [2020-11-29 20:53:55,389 INFO L226 Difference]: Without dead ends: 1278 [2020-11-29 20:53:55,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:53:55,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2020-11-29 20:53:55,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1278. [2020-11-29 20:53:55,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-11-29 20:53:55,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1364 transitions. [2020-11-29 20:53:55,428 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1364 transitions. Word has length 247 [2020-11-29 20:53:55,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:53:55,429 INFO L481 AbstractCegarLoop]: Abstraction has 1278 states and 1364 transitions. [2020-11-29 20:53:55,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:53:55,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1364 transitions. [2020-11-29 20:53:55,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-11-29 20:53:55,436 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:55,436 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, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:55,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:53:55,660 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:55,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:55,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1340152621, now seen corresponding path program 1 times [2020-11-29 20:53:55,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:55,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040133593] [2020-11-29 20:53:55,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:55,801 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-11-29 20:53:55,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040133593] [2020-11-29 20:53:55,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:53:55,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:53:55,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611494120] [2020-11-29 20:53:55,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:53:55,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:55,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:53:55,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:55,804 INFO L87 Difference]: Start difference. First operand 1278 states and 1364 transitions. Second operand 3 states. [2020-11-29 20:53:56,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:56,557 INFO L93 Difference]: Finished difference Result 2695 states and 2896 transitions. [2020-11-29 20:53:56,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:53:56,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2020-11-29 20:53:56,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:53:56,567 INFO L225 Difference]: With dead ends: 2695 [2020-11-29 20:53:56,568 INFO L226 Difference]: Without dead ends: 1559 [2020-11-29 20:53:56,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:53:56,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2020-11-29 20:53:56,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1278. [2020-11-29 20:53:56,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-11-29 20:53:56,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1361 transitions. [2020-11-29 20:53:56,608 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1361 transitions. Word has length 268 [2020-11-29 20:53:56,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:53:56,609 INFO L481 AbstractCegarLoop]: Abstraction has 1278 states and 1361 transitions. [2020-11-29 20:53:56,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:53:56,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1361 transitions. [2020-11-29 20:53:56,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-11-29 20:53:56,616 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:56,616 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:56,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 20:53:56,617 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:56,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:56,618 INFO L82 PathProgramCache]: Analyzing trace with hash -342046692, now seen corresponding path program 1 times [2020-11-29 20:53:56,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:56,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86779158] [2020-11-29 20:53:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:53:56,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86779158] [2020-11-29 20:53:56,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:53:56,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:53:56,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465051235] [2020-11-29 20:53:56,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:53:56,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:56,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:53:56,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:53:56,879 INFO L87 Difference]: Start difference. First operand 1278 states and 1361 transitions. Second operand 4 states. [2020-11-29 20:53:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:57,888 INFO L93 Difference]: Finished difference Result 2974 states and 3160 transitions. [2020-11-29 20:53:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:53:57,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 291 [2020-11-29 20:53:57,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:53:57,898 INFO L225 Difference]: With dead ends: 2974 [2020-11-29 20:53:57,898 INFO L226 Difference]: Without dead ends: 1558 [2020-11-29 20:53:57,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:53:57,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2020-11-29 20:53:57,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1416. [2020-11-29 20:53:57,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1416 states. [2020-11-29 20:53:57,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1483 transitions. [2020-11-29 20:53:57,940 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1483 transitions. Word has length 291 [2020-11-29 20:53:57,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:53:57,941 INFO L481 AbstractCegarLoop]: Abstraction has 1416 states and 1483 transitions. [2020-11-29 20:53:57,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:53:57,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1483 transitions. [2020-11-29 20:53:57,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-11-29 20:53:57,950 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:57,950 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:57,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 20:53:57,951 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:57,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:57,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1359711507, now seen corresponding path program 1 times [2020-11-29 20:53:57,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:57,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145677808] [2020-11-29 20:53:57,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:58,303 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-11-29 20:53:58,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145677808] [2020-11-29 20:53:58,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:53:58,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:53:58,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205050537] [2020-11-29 20:53:58,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:53:58,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:53:58,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:53:58,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:53:58,307 INFO L87 Difference]: Start difference. First operand 1416 states and 1483 transitions. Second operand 5 states. [2020-11-29 20:53:59,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:53:59,450 INFO L93 Difference]: Finished difference Result 2858 states and 3002 transitions. [2020-11-29 20:53:59,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 20:53:59,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 301 [2020-11-29 20:53:59,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:53:59,459 INFO L225 Difference]: With dead ends: 2858 [2020-11-29 20:53:59,459 INFO L226 Difference]: Without dead ends: 1295 [2020-11-29 20:53:59,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:53:59,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2020-11-29 20:53:59,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1134. [2020-11-29 20:53:59,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1134 states. [2020-11-29 20:53:59,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1161 transitions. [2020-11-29 20:53:59,493 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1161 transitions. Word has length 301 [2020-11-29 20:53:59,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:53:59,494 INFO L481 AbstractCegarLoop]: Abstraction has 1134 states and 1161 transitions. [2020-11-29 20:53:59,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:53:59,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1161 transitions. [2020-11-29 20:53:59,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-11-29 20:53:59,499 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:53:59,500 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:53:59,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 20:53:59,500 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:53:59,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:53:59,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1849293059, now seen corresponding path program 1 times [2020-11-29 20:53:59,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:53:59,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122539231] [2020-11-29 20:53:59,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:53:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:53:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 277 proven. 106 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-29 20:53:59,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122539231] [2020-11-29 20:53:59,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515323501] [2020-11-29 20:53:59,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:54:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:54:00,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:54:00,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:54:00,186 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-11-29 20:54:00,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:54:00,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-29 20:54:00,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067327171] [2020-11-29 20:54:00,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:54:00,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:54:00,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:54:00,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:54:00,189 INFO L87 Difference]: Start difference. First operand 1134 states and 1161 transitions. Second operand 3 states. [2020-11-29 20:54:00,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:54:00,756 INFO L93 Difference]: Finished difference Result 1557 states and 1597 transitions. [2020-11-29 20:54:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:54:00,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 343 [2020-11-29 20:54:00,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:54:00,757 INFO L225 Difference]: With dead ends: 1557 [2020-11-29 20:54:00,757 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:54:00,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:54:00,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:54:00,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:54:00,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:54:00,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:54:00,759 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 343 [2020-11-29 20:54:00,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:54:00,760 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:54:00,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:54:00,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:54:00,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:54:00,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:54:00,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:54:01,349 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-11-29 20:54:01,650 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-11-29 20:54:01,654 INFO L274 CegarLoopResult]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,654 INFO L274 CegarLoopResult]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,654 INFO L274 CegarLoopResult]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,654 INFO L274 CegarLoopResult]: For program point L301(lines 301 423) no Hoare annotation was computed. [2020-11-29 20:54:01,655 INFO L274 CegarLoopResult]: For program point L235(lines 235 423) no Hoare annotation was computed. [2020-11-29 20:54:01,655 INFO L274 CegarLoopResult]: For program point L169(lines 169 423) no Hoare annotation was computed. [2020-11-29 20:54:01,655 INFO L274 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-11-29 20:54:01,655 INFO L274 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-11-29 20:54:01,655 INFO L274 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-11-29 20:54:01,655 INFO L274 CegarLoopResult]: For program point L303(lines 303 423) no Hoare annotation was computed. [2020-11-29 20:54:01,655 INFO L274 CegarLoopResult]: For program point L105(lines 105 423) no Hoare annotation was computed. [2020-11-29 20:54:01,656 INFO L274 CegarLoopResult]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,656 INFO L274 CegarLoopResult]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,656 INFO L274 CegarLoopResult]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,656 INFO L274 CegarLoopResult]: For program point L40(lines 40 423) no Hoare annotation was computed. [2020-11-29 20:54:01,656 INFO L274 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-11-29 20:54:01,657 INFO L274 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-11-29 20:54:01,657 INFO L274 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-11-29 20:54:01,657 INFO L274 CegarLoopResult]: For program point L371(lines 371 423) no Hoare annotation was computed. [2020-11-29 20:54:01,657 INFO L274 CegarLoopResult]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,657 INFO L274 CegarLoopResult]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,657 INFO L274 CegarLoopResult]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,658 INFO L274 CegarLoopResult]: For program point L307(lines 307 423) no Hoare annotation was computed. [2020-11-29 20:54:01,658 INFO L274 CegarLoopResult]: For program point L175(lines 175 423) no Hoare annotation was computed. [2020-11-29 20:54:01,658 INFO L274 CegarLoopResult]: For program point L109(lines 109 423) no Hoare annotation was computed. [2020-11-29 20:54:01,658 INFO L274 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-11-29 20:54:01,658 INFO L274 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-11-29 20:54:01,658 INFO L274 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-11-29 20:54:01,659 INFO L274 CegarLoopResult]: For program point L308(lines 308 317) no Hoare annotation was computed. [2020-11-29 20:54:01,659 INFO L274 CegarLoopResult]: For program point L242(lines 242 423) no Hoare annotation was computed. [2020-11-29 20:54:01,659 INFO L274 CegarLoopResult]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2020-11-29 20:54:01,659 INFO L274 CegarLoopResult]: For program point L45(lines 45 423) no Hoare annotation was computed. [2020-11-29 20:54:01,659 INFO L274 CegarLoopResult]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,659 INFO L274 CegarLoopResult]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,659 INFO L274 CegarLoopResult]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,660 INFO L274 CegarLoopResult]: For program point L244(lines 244 423) no Hoare annotation was computed. [2020-11-29 20:54:01,660 INFO L274 CegarLoopResult]: For program point L575(line 575) no Hoare annotation was computed. [2020-11-29 20:54:01,660 INFO L274 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-11-29 20:54:01,660 INFO L274 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-11-29 20:54:01,660 INFO L274 CegarLoopResult]: For program point L179(lines 179 423) no Hoare annotation was computed. [2020-11-29 20:54:01,660 INFO L274 CegarLoopResult]: For program point L378(lines 378 423) no Hoare annotation was computed. [2020-11-29 20:54:01,661 INFO L274 CegarLoopResult]: For program point L48(lines 48 423) no Hoare annotation was computed. [2020-11-29 20:54:01,661 INFO L274 CegarLoopResult]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,661 INFO L274 CegarLoopResult]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,661 INFO L274 CegarLoopResult]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,661 INFO L274 CegarLoopResult]: For program point L247(lines 247 423) no Hoare annotation was computed. [2020-11-29 20:54:01,661 INFO L274 CegarLoopResult]: For program point L578(line 578) no Hoare annotation was computed. [2020-11-29 20:54:01,662 INFO L274 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-11-29 20:54:01,662 INFO L274 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-11-29 20:54:01,662 INFO L274 CegarLoopResult]: For program point L248(lines 248 256) no Hoare annotation was computed. [2020-11-29 20:54:01,662 INFO L274 CegarLoopResult]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2020-11-29 20:54:01,662 INFO L274 CegarLoopResult]: For program point L116(lines 116 423) no Hoare annotation was computed. [2020-11-29 20:54:01,662 INFO L274 CegarLoopResult]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,662 INFO L274 CegarLoopResult]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,663 INFO L274 CegarLoopResult]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,663 INFO L274 CegarLoopResult]: For program point L52(lines 52 423) no Hoare annotation was computed. [2020-11-29 20:54:01,663 INFO L274 CegarLoopResult]: For program point L581(line 581) no Hoare annotation was computed. [2020-11-29 20:54:01,663 INFO L274 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-11-29 20:54:01,663 INFO L274 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-11-29 20:54:01,663 INFO L274 CegarLoopResult]: For program point L185(lines 185 423) no Hoare annotation was computed. [2020-11-29 20:54:01,664 INFO L274 CegarLoopResult]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,664 INFO L274 CegarLoopResult]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,664 INFO L274 CegarLoopResult]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,664 INFO L274 CegarLoopResult]: For program point L385(lines 385 423) no Hoare annotation was computed. [2020-11-29 20:54:01,664 INFO L274 CegarLoopResult]: For program point L319(lines 319 423) no Hoare annotation was computed. [2020-11-29 20:54:01,664 INFO L274 CegarLoopResult]: For program point L584(line 584) no Hoare annotation was computed. [2020-11-29 20:54:01,664 INFO L274 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-11-29 20:54:01,665 INFO L274 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-11-29 20:54:01,665 INFO L274 CegarLoopResult]: For program point L189(lines 189 423) no Hoare annotation was computed. [2020-11-29 20:54:01,665 INFO L274 CegarLoopResult]: For program point L123(lines 123 423) no Hoare annotation was computed. [2020-11-29 20:54:01,665 INFO L274 CegarLoopResult]: For program point L57(lines 57 423) no Hoare annotation was computed. [2020-11-29 20:54:01,665 INFO L274 CegarLoopResult]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,665 INFO L274 CegarLoopResult]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,666 INFO L274 CegarLoopResult]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,666 INFO L274 CegarLoopResult]: For program point L388(lines 388 423) no Hoare annotation was computed. [2020-11-29 20:54:01,666 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:54:01,666 INFO L274 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-11-29 20:54:01,666 INFO L274 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-11-29 20:54:01,666 INFO L274 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-11-29 20:54:01,666 INFO L274 CegarLoopResult]: For program point L390(lines 390 423) no Hoare annotation was computed. [2020-11-29 20:54:01,667 INFO L274 CegarLoopResult]: For program point L324(lines 324 423) no Hoare annotation was computed. [2020-11-29 20:54:01,667 INFO L274 CegarLoopResult]: For program point L258(lines 258 423) no Hoare annotation was computed. [2020-11-29 20:54:01,667 INFO L274 CegarLoopResult]: For program point L60(lines 60 423) no Hoare annotation was computed. [2020-11-29 20:54:01,667 INFO L274 CegarLoopResult]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,667 INFO L274 CegarLoopResult]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,667 INFO L274 CegarLoopResult]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,668 INFO L274 CegarLoopResult]: For program point L391(lines 391 397) no Hoare annotation was computed. [2020-11-29 20:54:01,668 INFO L274 CegarLoopResult]: For program point L325(lines 325 336) no Hoare annotation was computed. [2020-11-29 20:54:01,668 INFO L274 CegarLoopResult]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2020-11-29 20:54:01,668 INFO L274 CegarLoopResult]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2020-11-29 20:54:01,668 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-11-29 20:54:01,668 INFO L274 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-11-29 20:54:01,668 INFO L274 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-11-29 20:54:01,668 INFO L274 CegarLoopResult]: For program point L195(lines 195 423) no Hoare annotation was computed. [2020-11-29 20:54:01,668 INFO L274 CegarLoopResult]: For program point L129(lines 129 423) no Hoare annotation was computed. [2020-11-29 20:54:01,668 INFO L274 CegarLoopResult]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,668 INFO L274 CegarLoopResult]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,668 INFO L274 CegarLoopResult]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,669 INFO L274 CegarLoopResult]: For program point L64(lines 64 423) no Hoare annotation was computed. [2020-11-29 20:54:01,669 INFO L274 CegarLoopResult]: For program point L593(line 593) no Hoare annotation was computed. [2020-11-29 20:54:01,669 INFO L274 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-11-29 20:54:01,669 INFO L274 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-11-29 20:54:01,669 INFO L274 CegarLoopResult]: For program point L263(lines 263 423) no Hoare annotation was computed. [2020-11-29 20:54:01,669 INFO L274 CegarLoopResult]: For program point L197(lines 197 423) no Hoare annotation was computed. [2020-11-29 20:54:01,669 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:54:01,669 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 20:54:01,670 INFO L274 CegarLoopResult]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,670 INFO L274 CegarLoopResult]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,670 INFO L274 CegarLoopResult]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,670 INFO L274 CegarLoopResult]: For program point L199(lines 199 423) no Hoare annotation was computed. [2020-11-29 20:54:01,670 INFO L274 CegarLoopResult]: For program point L133(lines 133 423) no Hoare annotation was computed. [2020-11-29 20:54:01,670 INFO L274 CegarLoopResult]: For program point L596(line 596) no Hoare annotation was computed. [2020-11-29 20:54:01,670 INFO L274 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-11-29 20:54:01,670 INFO L274 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-11-29 20:54:01,671 INFO L274 CegarLoopResult]: For program point L399(lines 399 423) no Hoare annotation was computed. [2020-11-29 20:54:01,671 INFO L274 CegarLoopResult]: For program point L201(lines 201 423) no Hoare annotation was computed. [2020-11-29 20:54:01,671 INFO L274 CegarLoopResult]: For program point L69(lines 69 423) no Hoare annotation was computed. [2020-11-29 20:54:01,671 INFO L274 CegarLoopResult]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,671 INFO L274 CegarLoopResult]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,671 INFO L274 CegarLoopResult]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,671 INFO L274 CegarLoopResult]: For program point L599(line 599) no Hoare annotation was computed. [2020-11-29 20:54:01,671 INFO L274 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-11-29 20:54:01,671 INFO L274 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-11-29 20:54:01,671 INFO L274 CegarLoopResult]: For program point L269(lines 269 423) no Hoare annotation was computed. [2020-11-29 20:54:01,672 INFO L274 CegarLoopResult]: For program point L204(lines 204 423) no Hoare annotation was computed. [2020-11-29 20:54:01,672 INFO L274 CegarLoopResult]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,672 INFO L274 CegarLoopResult]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,672 INFO L274 CegarLoopResult]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,672 INFO L274 CegarLoopResult]: For program point L271(lines 271 423) no Hoare annotation was computed. [2020-11-29 20:54:01,672 INFO L274 CegarLoopResult]: For program point L602(line 602) no Hoare annotation was computed. [2020-11-29 20:54:01,672 INFO L274 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-11-29 20:54:01,672 INFO L274 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-11-29 20:54:01,672 INFO L274 CegarLoopResult]: For program point L404(lines 404 423) no Hoare annotation was computed. [2020-11-29 20:54:01,673 INFO L274 CegarLoopResult]: For program point L338(lines 338 423) no Hoare annotation was computed. [2020-11-29 20:54:01,673 INFO L274 CegarLoopResult]: For program point L272(lines 272 284) no Hoare annotation was computed. [2020-11-29 20:54:01,673 INFO L274 CegarLoopResult]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2020-11-29 20:54:01,673 INFO L274 CegarLoopResult]: For program point L140(lines 140 423) no Hoare annotation was computed. [2020-11-29 20:54:01,673 INFO L274 CegarLoopResult]: For program point L75(lines 75 423) no Hoare annotation was computed. [2020-11-29 20:54:01,673 INFO L274 CegarLoopResult]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2020-11-29 20:54:01,673 INFO L274 CegarLoopResult]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,673 INFO L274 CegarLoopResult]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,673 INFO L274 CegarLoopResult]: For program point L208(lines 208 423) no Hoare annotation was computed. [2020-11-29 20:54:01,673 INFO L274 CegarLoopResult]: For program point L605(line 605) no Hoare annotation was computed. [2020-11-29 20:54:01,673 INFO L274 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-11-29 20:54:01,674 INFO L274 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-11-29 20:54:01,674 INFO L274 CegarLoopResult]: For program point L341(lines 341 423) no Hoare annotation was computed. [2020-11-29 20:54:01,674 INFO L274 CegarLoopResult]: For program point L408(lines 408 423) no Hoare annotation was computed. [2020-11-29 20:54:01,674 INFO L274 CegarLoopResult]: For program point L342(lines 342 345) no Hoare annotation was computed. [2020-11-29 20:54:01,674 INFO L274 CegarLoopResult]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2020-11-29 20:54:01,674 INFO L274 CegarLoopResult]: For program point L144(lines 144 423) no Hoare annotation was computed. [2020-11-29 20:54:01,675 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 20:54:01,675 INFO L270 CegarLoopResult]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse4 (<= 9 ~a28~0)) (.cse6 (= ~a21~0 1)) (.cse7 (= ~a17~0 8)) (.cse11 (<= ~a25~0 0)) (.cse0 (<= ~a19~0 0)) (.cse10 (<= ~a28~0 7)) (.cse2 (= ~a11~0 1)) (.cse5 (= ~a19~0 1)) (.cse8 (<= 8 ~a17~0)) (.cse9 (= ~a25~0 1)) (.cse1 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7 .cse3) (and .cse5 .cse6 .cse8 .cse9 .cse1) (and .cse5 .cse9 .cse10 .cse1) (and .cse0 .cse4 .cse9 .cse1 .cse3) (and .cse5 .cse10 .cse1 .cse2) (and .cse0 (<= ~a28~0 8) .cse1 .cse11) (and .cse5 .cse6 .cse7 .cse10 .cse11) (and .cse0 .cse10 .cse1) (and .cse5 .cse8 .cse2 .cse1 .cse3) (and .cse5 .cse8 .cse9 .cse1 .cse3))) [2020-11-29 20:54:01,676 INFO L274 CegarLoopResult]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,676 INFO L274 CegarLoopResult]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,676 INFO L274 CegarLoopResult]: For program point L79(lines 79 423) no Hoare annotation was computed. [2020-11-29 20:54:01,676 INFO L274 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-11-29 20:54:01,676 INFO L274 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-11-29 20:54:01,676 INFO L274 CegarLoopResult]: For program point L212(lines 212 423) no Hoare annotation was computed. [2020-11-29 20:54:01,676 INFO L274 CegarLoopResult]: For program point L213(lines 213 220) no Hoare annotation was computed. [2020-11-29 20:54:01,677 INFO L274 CegarLoopResult]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2020-11-29 20:54:01,677 INFO L277 CegarLoopResult]: At program point L610(lines 610 627) the Hoare annotation is: true [2020-11-29 20:54:01,677 INFO L274 CegarLoopResult]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,677 INFO L274 CegarLoopResult]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,677 INFO L274 CegarLoopResult]: For program point L412(lines 412 423) no Hoare annotation was computed. [2020-11-29 20:54:01,677 INFO L274 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-11-29 20:54:01,677 INFO L274 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-11-29 20:54:01,677 INFO L274 CegarLoopResult]: For program point L347(lines 347 423) no Hoare annotation was computed. [2020-11-29 20:54:01,677 INFO L274 CegarLoopResult]: For program point L149(lines 149 423) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point L414(lines 414 423) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point L348(lines 348 357) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point L84(lines 84 423) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point L85(lines 85 90) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-11-29 20:54:01,678 INFO L274 CegarLoopResult]: For program point L153(lines 153 423) no Hoare annotation was computed. [2020-11-29 20:54:01,679 INFO L270 CegarLoopResult]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse4 (<= 9 ~a28~0)) (.cse6 (= ~a21~0 1)) (.cse7 (= ~a17~0 8)) (.cse11 (<= ~a25~0 0)) (.cse0 (<= ~a19~0 0)) (.cse10 (<= ~a28~0 7)) (.cse2 (= ~a11~0 1)) (.cse5 (= ~a19~0 1)) (.cse8 (<= 8 ~a17~0)) (.cse9 (= ~a25~0 1)) (.cse1 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7 .cse3) (and .cse5 .cse6 .cse8 .cse9 .cse1) (and .cse5 .cse9 .cse10 .cse1) (and .cse0 .cse4 .cse9 .cse1 .cse3) (and .cse5 .cse10 .cse1 .cse2) (and .cse0 (<= ~a28~0 8) .cse1 .cse11) (and .cse5 .cse6 .cse7 .cse10 .cse11) (and .cse0 .cse10 .cse1) (and .cse5 .cse8 .cse2 .cse1 .cse3) (and .cse5 .cse8 .cse9 .cse1 .cse3))) [2020-11-29 20:54:01,679 INFO L274 CegarLoopResult]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,679 INFO L274 CegarLoopResult]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,679 INFO L274 CegarLoopResult]: For program point L286(lines 286 423) no Hoare annotation was computed. [2020-11-29 20:54:01,679 INFO L274 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-11-29 20:54:01,679 INFO L274 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-11-29 20:54:01,679 INFO L274 CegarLoopResult]: For program point L419(lines 419 423) no Hoare annotation was computed. [2020-11-29 20:54:01,679 INFO L274 CegarLoopResult]: For program point L222(lines 222 423) no Hoare annotation was computed. [2020-11-29 20:54:01,679 INFO L274 CegarLoopResult]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,679 INFO L274 CegarLoopResult]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,679 INFO L274 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-11-29 20:54:01,679 INFO L274 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-11-29 20:54:01,679 INFO L274 CegarLoopResult]: For program point L290(lines 290 423) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L158(lines 158 423) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L92(lines 92 423) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L621(line 621) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L225(lines 225 423) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L424(lines 424 426) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-11-29 20:54:01,680 INFO L274 CegarLoopResult]: For program point L359(lines 359 423) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L293(lines 293 423) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L228(lines 228 423) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L296(lines 296 423) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L164(lines 164 423) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L364(lines 364 423) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-11-29 20:54:01,681 INFO L274 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-11-29 20:54:01,682 INFO L274 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-11-29 20:54:01,682 INFO L274 CegarLoopResult]: For program point L233(lines 233 423) no Hoare annotation was computed. [2020-11-29 20:54:01,682 INFO L274 CegarLoopResult]: For program point L101(lines 101 423) no Hoare annotation was computed. [2020-11-29 20:54:01,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:54:01 BoogieIcfgContainer [2020-11-29 20:54:01,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:54:01,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:54:01,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:54:01,713 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:54:01,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:53:43" (3/4) ... [2020-11-29 20:54:01,718 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:54:01,746 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 20:54:01,748 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:54:01,750 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:54:01,751 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:54:01,965 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3623cbb5-d93f-4b19-b352-725fe721f90d/bin/uautomizer/witness.graphml [2020-11-29 20:54:01,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:54:01,967 INFO L168 Benchmark]: Toolchain (without parser) took 21709.65 ms. Allocated memory was 102.8 MB in the beginning and 348.1 MB in the end (delta: 245.4 MB). Free memory was 65.9 MB in the beginning and 140.7 MB in the end (delta: -74.8 MB). Peak memory consumption was 171.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:54:01,968 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 102.8 MB. Free memory is still 83.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:54:01,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 950.98 ms. Allocated memory is still 102.8 MB. Free memory was 65.7 MB in the beginning and 63.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:54:01,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.24 ms. Allocated memory is still 102.8 MB. Free memory was 63.4 MB in the beginning and 58.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:54:01,969 INFO L168 Benchmark]: Boogie Preprocessor took 67.50 ms. Allocated memory is still 102.8 MB. Free memory was 58.0 MB in the beginning and 53.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:54:01,970 INFO L168 Benchmark]: RCFGBuilder took 1848.41 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 53.5 MB in the beginning and 100.3 MB in the end (delta: -46.8 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:54:01,970 INFO L168 Benchmark]: TraceAbstraction took 18490.52 ms. Allocated memory was 130.0 MB in the beginning and 348.1 MB in the end (delta: 218.1 MB). Free memory was 100.3 MB in the beginning and 156.4 MB in the end (delta: -56.2 MB). Peak memory consumption was 161.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:54:01,971 INFO L168 Benchmark]: Witness Printer took 252.24 ms. Allocated memory is still 348.1 MB. Free memory was 156.4 MB in the beginning and 140.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:54:01,973 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 102.8 MB. Free memory is still 83.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 950.98 ms. Allocated memory is still 102.8 MB. Free memory was 65.7 MB in the beginning and 63.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.24 ms. Allocated memory is still 102.8 MB. Free memory was 63.4 MB in the beginning and 58.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.50 ms. Allocated memory is still 102.8 MB. Free memory was 58.0 MB in the beginning and 53.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1848.41 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 53.5 MB in the beginning and 100.3 MB in the end (delta: -46.8 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18490.52 ms. Allocated memory was 130.0 MB in the beginning and 348.1 MB in the end (delta: 218.1 MB). Free memory was 100.3 MB in the beginning and 156.4 MB in the end (delta: -56.2 MB). Peak memory consumption was 161.7 MB. Max. memory is 16.1 GB. * Witness Printer took 252.24 ms. Allocated memory is still 348.1 MB. Free memory was 156.4 MB in the beginning and 140.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 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: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: ((((((((((((a19 <= 0 && a17 <= 8) && a11 == 1) && a28 <= 10) || ((((9 <= a28 && a19 == 1) && a21 == 1) && a17 == 8) && a28 <= 10)) || ((((a19 == 1 && a21 == 1) && 8 <= a17) && a25 == 1) && a17 <= 8)) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || ((((a19 <= 0 && 9 <= a28) && a25 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a28 <= 7) && a17 <= 8) && a11 == 1)) || (((a19 <= 0 && a28 <= 8) && a17 <= 8) && a25 <= 0)) || ((((a19 == 1 && a21 == 1) && a17 == 8) && a28 <= 7) && a25 <= 0)) || ((a19 <= 0 && a28 <= 7) && a17 <= 8)) || ((((a19 == 1 && 8 <= a17) && a11 == 1) && a17 <= 8) && a28 <= 10)) || ((((a19 == 1 && 8 <= a17) && a25 == 1) && a17 <= 8) && a28 <= 10) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((((a19 <= 0 && a17 <= 8) && a11 == 1) && a28 <= 10) || ((((9 <= a28 && a19 == 1) && a21 == 1) && a17 == 8) && a28 <= 10)) || ((((a19 == 1 && a21 == 1) && 8 <= a17) && a25 == 1) && a17 <= 8)) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || ((((a19 <= 0 && 9 <= a28) && a25 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a28 <= 7) && a17 <= 8) && a11 == 1)) || (((a19 <= 0 && a28 <= 8) && a17 <= 8) && a25 <= 0)) || ((((a19 == 1 && a21 == 1) && a17 == 8) && a28 <= 7) && a25 <= 0)) || ((a19 <= 0 && a28 <= 7) && a17 <= 8)) || ((((a19 == 1 && 8 <= a17) && a11 == 1) && a17 <= 8) && a28 <= 10)) || ((((a19 == 1 && 8 <= a17) && a25 == 1) && a17 <= 8) && a28 <= 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.6s, OverallIterations: 13, TraceHistogramMax: 5, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1414 SDtfs, 1844 SDslu, 173 SDs, 0 SdLazy, 4965 SolverSat, 705 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1038 GetRequests, 1010 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1416occurred 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, 13 MinimizatonAttempts, 1012 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 319 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1574 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 310 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 3876 NumberOfCodeBlocks, 3876 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3859 ConstructedInterpolants, 0 QuantifiedInterpolants, 2345977 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1659 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 2265/2399 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...