./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label25.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_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label25.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/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 9c9e504dbddc7dcee5c37c545c0593dfdbc10dce ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:20:37,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:20:37,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:20:37,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:20:37,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:20:37,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:20:37,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:20:37,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:20:37,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:20:37,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:20:37,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:20:37,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:20:37,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:20:37,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:20:37,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:20:37,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:20:37,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:20:37,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:20:37,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:20:37,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:20:37,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:20:37,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:20:37,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:20:37,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:20:37,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:20:37,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:20:37,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:20:37,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:20:37,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:20:37,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:20:37,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:20:37,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:20:37,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:20:37,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:20:37,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:20:37,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:20:37,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:20:37,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:20:37,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:20:37,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:20:37,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:20:37,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:20:37,896 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:20:37,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:20:37,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:20:37,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:20:37,900 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:20:37,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:20:37,900 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:20:37,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:20:37,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:20:37,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:20:37,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:20:37,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:20:37,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:20:37,904 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:20:37,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:20:37,904 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:20:37,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:20:37,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:20:37,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:20:37,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:20:37,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:20:37,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:20:37,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:20:37,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:20:37,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:20:37,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:20:37,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:20:37,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:20:37,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:20:37,909 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_4f5fe350-c47b-44d1-9682-21e60580e614/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c9e504dbddc7dcee5c37c545c0593dfdbc10dce [2020-11-30 01:20:38,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:20:38,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:20:38,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:20:38,409 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:20:38,410 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:20:38,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label25.c [2020-11-30 01:20:38,510 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/data/052757307/33d03e8c7efc4e4386dc5bdde8a470a1/FLAG3789a1185 [2020-11-30 01:20:39,434 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:20:39,435 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/sv-benchmarks/c/eca-rers2012/Problem14_label25.c [2020-11-30 01:20:39,457 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/data/052757307/33d03e8c7efc4e4386dc5bdde8a470a1/FLAG3789a1185 [2020-11-30 01:20:39,624 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/data/052757307/33d03e8c7efc4e4386dc5bdde8a470a1 [2020-11-30 01:20:39,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:20:39,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:20:39,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:20:39,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:20:39,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:20:39,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:20:39" (1/1) ... [2020-11-30 01:20:39,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54445699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39, skipping insertion in model container [2020-11-30 01:20:39,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:20:39" (1/1) ... [2020-11-30 01:20:39,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:20:39,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:20:40,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:20:40,354 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:20:40,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:20:40,635 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:20:40,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:40 WrapperNode [2020-11-30 01:20:40,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:20:40,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:20:40,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:20:40,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:20:40,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:40" (1/1) ... [2020-11-30 01:20:40,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:40" (1/1) ... [2020-11-30 01:20:40,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:20:40,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:20:40,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:20:40,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:20:40,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:40" (1/1) ... [2020-11-30 01:20:40,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:40" (1/1) ... [2020-11-30 01:20:40,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:40" (1/1) ... [2020-11-30 01:20:40,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:40" (1/1) ... [2020-11-30 01:20:40,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:40" (1/1) ... [2020-11-30 01:20:40,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:40" (1/1) ... [2020-11-30 01:20:40,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:40" (1/1) ... [2020-11-30 01:20:40,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:20:40,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:20:40,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:20:40,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:20:40,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:20:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:20:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:20:41,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:20:41,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:20:43,335 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:20:43,335 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 01:20:43,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:20:43 BoogieIcfgContainer [2020-11-30 01:20:43,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:20:43,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:20:43,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:20:43,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:20:43,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:20:39" (1/3) ... [2020-11-30 01:20:43,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6292b1d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:20:43, skipping insertion in model container [2020-11-30 01:20:43,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:40" (2/3) ... [2020-11-30 01:20:43,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6292b1d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:20:43, skipping insertion in model container [2020-11-30 01:20:43,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:20:43" (3/3) ... [2020-11-30 01:20:43,365 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label25.c [2020-11-30 01:20:43,380 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:20:43,387 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:20:43,403 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:20:43,449 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:20:43,449 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:20:43,450 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:20:43,450 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:20:43,450 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:20:43,450 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:20:43,451 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:20:43,451 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:20:43,478 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-11-30 01:20:43,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-11-30 01:20:43,490 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:20:43,491 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] [2020-11-30 01:20:43,491 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:20:43,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:43,500 INFO L82 PathProgramCache]: Analyzing trace with hash -107486446, now seen corresponding path program 1 times [2020-11-30 01:20:43,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:43,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342535777] [2020-11-30 01:20:43,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:43,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:43,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342535777] [2020-11-30 01:20:43,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:20:43,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:20:43,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827614293] [2020-11-30 01:20:43,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:20:43,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:20:43,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:20:43,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:20:43,962 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-11-30 01:20:46,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:20:46,039 INFO L93 Difference]: Finished difference Result 686 states and 1217 transitions. [2020-11-30 01:20:46,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:20:46,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-11-30 01:20:46,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:20:46,060 INFO L225 Difference]: With dead ends: 686 [2020-11-30 01:20:46,060 INFO L226 Difference]: Without dead ends: 360 [2020-11-30 01:20:46,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:20:46,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-11-30 01:20:46,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-11-30 01:20:46,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-11-30 01:20:46,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2020-11-30 01:20:46,152 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 64 [2020-11-30 01:20:46,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:20:46,154 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2020-11-30 01:20:46,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:20:46,154 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2020-11-30 01:20:46,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-11-30 01:20:46,164 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:20:46,164 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 01:20:46,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:20:46,165 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:20:46,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:46,166 INFO L82 PathProgramCache]: Analyzing trace with hash 2141586279, now seen corresponding path program 1 times [2020-11-30 01:20:46,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:46,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741273373] [2020-11-30 01:20:46,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:46,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741273373] [2020-11-30 01:20:46,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:20:46,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:20:46,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064527852] [2020-11-30 01:20:46,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:20:46,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:20:46,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:20:46,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:20:46,626 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2020-11-30 01:20:48,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:20:48,666 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2020-11-30 01:20:48,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:20:48,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-11-30 01:20:48,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:20:48,682 INFO L225 Difference]: With dead ends: 1074 [2020-11-30 01:20:48,683 INFO L226 Difference]: Without dead ends: 716 [2020-11-30 01:20:48,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:20:48,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-11-30 01:20:48,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-11-30 01:20:48,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-11-30 01:20:48,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2020-11-30 01:20:48,776 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 143 [2020-11-30 01:20:48,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:20:48,777 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2020-11-30 01:20:48,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:20:48,778 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2020-11-30 01:20:48,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-30 01:20:48,790 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:20:48,790 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 01:20:48,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:20:48,801 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:20:48,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:48,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1751766938, now seen corresponding path program 1 times [2020-11-30 01:20:48,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:48,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125297856] [2020-11-30 01:20:48,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:49,243 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 01:20:49,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125297856] [2020-11-30 01:20:49,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362683493] [2020-11-30 01:20:49,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:20:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:49,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:20:49,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:20:49,631 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-11-30 01:20:49,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:20:49,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-30 01:20:49,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103221222] [2020-11-30 01:20:49,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:20:49,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:20:49,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:20:49,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:20:49,636 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2020-11-30 01:20:51,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:20:51,172 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2020-11-30 01:20:51,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:20:51,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-11-30 01:20:51,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:20:51,189 INFO L225 Difference]: With dead ends: 1252 [2020-11-30 01:20:51,191 INFO L226 Difference]: Without dead ends: 1250 [2020-11-30 01:20:51,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:20:51,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-11-30 01:20:51,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2020-11-30 01:20:51,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-11-30 01:20:51,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2020-11-30 01:20:51,261 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 169 [2020-11-30 01:20:51,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:20:51,263 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2020-11-30 01:20:51,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:20:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2020-11-30 01:20:51,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-11-30 01:20:51,270 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:20:51,271 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:20:51,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-30 01:20:51,472 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:20:51,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:51,473 INFO L82 PathProgramCache]: Analyzing trace with hash -22183269, now seen corresponding path program 1 times [2020-11-30 01:20:51,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:51,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315814704] [2020-11-30 01:20:51,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-11-30 01:20:51,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315814704] [2020-11-30 01:20:51,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:20:51,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:20:51,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892344563] [2020-11-30 01:20:51,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:20:51,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:20:51,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:20:51,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:20:51,867 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand 4 states. [2020-11-30 01:20:53,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:20:53,410 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2020-11-30 01:20:53,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:20:53,411 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 223 [2020-11-30 01:20:53,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:20:53,420 INFO L225 Difference]: With dead ends: 1993 [2020-11-30 01:20:53,420 INFO L226 Difference]: Without dead ends: 1072 [2020-11-30 01:20:53,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:20:53,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-11-30 01:20:53,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-11-30 01:20:53,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-11-30 01:20:53,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2020-11-30 01:20:53,462 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 223 [2020-11-30 01:20:53,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:20:53,464 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2020-11-30 01:20:53,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:20:53,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2020-11-30 01:20:53,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-11-30 01:20:53,471 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:20:53,472 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:20:53,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:20:53,472 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:20:53,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:53,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1996075083, now seen corresponding path program 1 times [2020-11-30 01:20:53,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:53,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883839492] [2020-11-30 01:20:53,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 123 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:53,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883839492] [2020-11-30 01:20:53,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812347640] [2020-11-30 01:20:53,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:20:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:54,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:20:54,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:20:54,196 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-11-30 01:20:54,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:20:54,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 01:20:54,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685125427] [2020-11-30 01:20:54,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:20:54,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:20:54,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:20:54,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:20:54,201 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand 3 states. [2020-11-30 01:20:55,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:20:55,477 INFO L93 Difference]: Finished difference Result 2498 states and 3033 transitions. [2020-11-30 01:20:55,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:20:55,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2020-11-30 01:20:55,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:20:55,489 INFO L225 Difference]: With dead ends: 2498 [2020-11-30 01:20:55,490 INFO L226 Difference]: Without dead ends: 1428 [2020-11-30 01:20:55,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:20:55,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-11-30 01:20:55,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1072. [2020-11-30 01:20:55,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-11-30 01:20:55,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2020-11-30 01:20:55,534 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 235 [2020-11-30 01:20:55,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:20:55,535 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2020-11-30 01:20:55,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:20:55,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2020-11-30 01:20:55,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-11-30 01:20:55,541 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:20:55,541 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:20:55,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:20:55,764 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:20:55,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:55,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1790632812, now seen corresponding path program 1 times [2020-11-30 01:20:55,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:55,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35694995] [2020-11-30 01:20:55,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:56,036 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:56,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35694995] [2020-11-30 01:20:56,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:20:56,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:20:56,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104672269] [2020-11-30 01:20:56,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:20:56,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:20:56,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:20:56,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:20:56,048 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand 3 states. [2020-11-30 01:20:57,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:20:57,324 INFO L93 Difference]: Finished difference Result 2676 states and 3213 transitions. [2020-11-30 01:20:57,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:20:57,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2020-11-30 01:20:57,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:20:57,336 INFO L225 Difference]: With dead ends: 2676 [2020-11-30 01:20:57,336 INFO L226 Difference]: Without dead ends: 1606 [2020-11-30 01:20:57,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:20:57,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-11-30 01:20:57,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-11-30 01:20:57,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-11-30 01:20:57,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1858 transitions. [2020-11-30 01:20:57,392 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1858 transitions. Word has length 238 [2020-11-30 01:20:57,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:20:57,405 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1858 transitions. [2020-11-30 01:20:57,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:20:57,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1858 transitions. [2020-11-30 01:20:57,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-11-30 01:20:57,415 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:20:57,415 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, 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, 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] [2020-11-30 01:20:57,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:20:57,416 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:20:57,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:57,417 INFO L82 PathProgramCache]: Analyzing trace with hash 261912130, now seen corresponding path program 1 times [2020-11-30 01:20:57,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:57,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115810131] [2020-11-30 01:20:57,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 240 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-11-30 01:20:58,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115810131] [2020-11-30 01:20:58,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338625801] [2020-11-30 01:20:58,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:20:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:58,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:20:58,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:20:58,444 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-11-30 01:20:58,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:20:58,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-11-30 01:20:58,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086135256] [2020-11-30 01:20:58,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:20:58,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:20:58,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:20:58,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:20:58,448 INFO L87 Difference]: Start difference. First operand 1606 states and 1858 transitions. Second operand 3 states. [2020-11-30 01:20:59,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:20:59,455 INFO L93 Difference]: Finished difference Result 3566 states and 4204 transitions. [2020-11-30 01:20:59,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:20:59,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 357 [2020-11-30 01:20:59,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:20:59,469 INFO L225 Difference]: With dead ends: 3566 [2020-11-30 01:20:59,469 INFO L226 Difference]: Without dead ends: 2140 [2020-11-30 01:20:59,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:20:59,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-11-30 01:20:59,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2020-11-30 01:20:59,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-11-30 01:20:59,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2222 transitions. [2020-11-30 01:20:59,553 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2222 transitions. Word has length 357 [2020-11-30 01:20:59,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:20:59,554 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2222 transitions. [2020-11-30 01:20:59,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:20:59,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2222 transitions. [2020-11-30 01:20:59,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2020-11-30 01:20:59,568 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:20:59,569 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:20:59,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:20:59,787 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:20:59,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:59,788 INFO L82 PathProgramCache]: Analyzing trace with hash -38524622, now seen corresponding path program 1 times [2020-11-30 01:20:59,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:59,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084369753] [2020-11-30 01:20:59,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:21:00,332 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2020-11-30 01:21:00,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084369753] [2020-11-30 01:21:00,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:21:00,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:21:00,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73324684] [2020-11-30 01:21:00,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:21:00,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:21:00,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:21:00,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:21:00,336 INFO L87 Difference]: Start difference. First operand 1962 states and 2222 transitions. Second operand 4 states. [2020-11-30 01:21:01,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:21:01,469 INFO L93 Difference]: Finished difference Result 3951 states and 4494 transitions. [2020-11-30 01:21:01,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:21:01,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 434 [2020-11-30 01:21:01,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:21:01,484 INFO L225 Difference]: With dead ends: 3951 [2020-11-30 01:21:01,484 INFO L226 Difference]: Without dead ends: 2140 [2020-11-30 01:21:01,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:21:01,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-11-30 01:21:01,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2020-11-30 01:21:01,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-11-30 01:21:01,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2126 transitions. [2020-11-30 01:21:01,541 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2126 transitions. Word has length 434 [2020-11-30 01:21:01,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:21:01,542 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2126 transitions. [2020-11-30 01:21:01,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:21:01,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2126 transitions. [2020-11-30 01:21:01,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-11-30 01:21:01,548 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:21:01,548 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:21:01,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:21:01,549 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:21:01,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:21:01,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1491092873, now seen corresponding path program 1 times [2020-11-30 01:21:01,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:21:01,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060202558] [2020-11-30 01:21:01,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:21:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:21:02,032 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 453 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-30 01:21:02,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060202558] [2020-11-30 01:21:02,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:21:02,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:21:02,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348888467] [2020-11-30 01:21:02,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:21:02,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:21:02,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:21:02,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:21:02,035 INFO L87 Difference]: Start difference. First operand 1962 states and 2126 transitions. Second operand 3 states. [2020-11-30 01:21:03,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:21:03,058 INFO L93 Difference]: Finished difference Result 4278 states and 4711 transitions. [2020-11-30 01:21:03,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:21:03,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 457 [2020-11-30 01:21:03,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:21:03,075 INFO L225 Difference]: With dead ends: 4278 [2020-11-30 01:21:03,076 INFO L226 Difference]: Without dead ends: 2496 [2020-11-30 01:21:03,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:21:03,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-11-30 01:21:03,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2020-11-30 01:21:03,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-11-30 01:21:03,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2678 transitions. [2020-11-30 01:21:03,144 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2678 transitions. Word has length 457 [2020-11-30 01:21:03,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:21:03,145 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2678 transitions. [2020-11-30 01:21:03,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:21:03,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2678 transitions. [2020-11-30 01:21:03,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2020-11-30 01:21:03,153 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:21:03,154 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-11-30 01:21:03,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:21:03,154 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:21:03,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:21:03,155 INFO L82 PathProgramCache]: Analyzing trace with hash 738319008, now seen corresponding path program 1 times [2020-11-30 01:21:03,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:21:03,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930544648] [2020-11-30 01:21:03,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:21:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:21:03,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-11-30 01:21:03,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930544648] [2020-11-30 01:21:03,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:21:03,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:21:03,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864277910] [2020-11-30 01:21:03,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:21:03,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:21:03,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:21:03,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:21:03,838 INFO L87 Difference]: Start difference. First operand 2496 states and 2678 transitions. Second operand 3 states. [2020-11-30 01:21:04,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:21:04,731 INFO L93 Difference]: Finished difference Result 5524 states and 6005 transitions. [2020-11-30 01:21:04,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:21:04,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 612 [2020-11-30 01:21:04,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:21:04,751 INFO L225 Difference]: With dead ends: 5524 [2020-11-30 01:21:04,752 INFO L226 Difference]: Without dead ends: 3208 [2020-11-30 01:21:04,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:21:04,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-11-30 01:21:04,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2020-11-30 01:21:04,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-11-30 01:21:04,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3244 transitions. [2020-11-30 01:21:04,879 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3244 transitions. Word has length 612 [2020-11-30 01:21:04,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:21:04,881 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3244 transitions. [2020-11-30 01:21:04,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:21:04,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3244 transitions. [2020-11-30 01:21:04,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2020-11-30 01:21:04,894 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:21:04,895 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:21:04,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 01:21:04,896 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:21:04,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:21:04,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1493090989, now seen corresponding path program 1 times [2020-11-30 01:21:04,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:21:04,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214655587] [2020-11-30 01:21:04,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:21:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:21:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 845 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2020-11-30 01:21:05,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214655587] [2020-11-30 01:21:05,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:21:05,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:21:05,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425983613] [2020-11-30 01:21:05,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:21:05,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:21:05,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:21:05,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:21:05,791 INFO L87 Difference]: Start difference. First operand 3030 states and 3244 transitions. Second operand 3 states. [2020-11-30 01:21:06,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:21:06,830 INFO L93 Difference]: Finished difference Result 7126 states and 7682 transitions. [2020-11-30 01:21:06,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:21:06,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 630 [2020-11-30 01:21:06,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:21:06,860 INFO L225 Difference]: With dead ends: 7126 [2020-11-30 01:21:06,861 INFO L226 Difference]: Without dead ends: 4276 [2020-11-30 01:21:06,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:21:06,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-11-30 01:21:06,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3742. [2020-11-30 01:21:06,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-11-30 01:21:06,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3996 transitions. [2020-11-30 01:21:06,969 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3996 transitions. Word has length 630 [2020-11-30 01:21:06,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:21:06,971 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3996 transitions. [2020-11-30 01:21:06,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:21:06,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3996 transitions. [2020-11-30 01:21:06,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2020-11-30 01:21:06,979 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:21:06,980 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2020-11-30 01:21:06,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 01:21:06,981 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:21:06,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:21:06,982 INFO L82 PathProgramCache]: Analyzing trace with hash -233613869, now seen corresponding path program 1 times [2020-11-30 01:21:06,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:21:06,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692420162] [2020-11-30 01:21:06,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:21:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:21:07,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 952 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-30 01:21:07,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692420162] [2020-11-30 01:21:07,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323125596] [2020-11-30 01:21:07,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/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 [2020-11-30 01:21:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:21:08,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:21:08,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:21:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2020-11-30 01:21:08,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:21:08,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-30 01:21:08,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834537841] [2020-11-30 01:21:08,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:21:08,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:21:08,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:21:08,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:21:08,481 INFO L87 Difference]: Start difference. First operand 3742 states and 3996 transitions. Second operand 3 states. [2020-11-30 01:21:09,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:21:09,400 INFO L93 Difference]: Finished difference Result 8372 states and 8942 transitions. [2020-11-30 01:21:09,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:21:09,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 653 [2020-11-30 01:21:09,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:21:09,429 INFO L225 Difference]: With dead ends: 8372 [2020-11-30 01:21:09,429 INFO L226 Difference]: Without dead ends: 4098 [2020-11-30 01:21:09,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:21:09,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-11-30 01:21:09,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2020-11-30 01:21:09,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-11-30 01:21:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4163 transitions. [2020-11-30 01:21:09,580 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4163 transitions. Word has length 653 [2020-11-30 01:21:09,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:21:09,582 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4163 transitions. [2020-11-30 01:21:09,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:21:09,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4163 transitions. [2020-11-30 01:21:09,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2020-11-30 01:21:09,593 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:21:09,594 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2020-11-30 01:21:09,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:21:09,811 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:21:09,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:21:09,812 INFO L82 PathProgramCache]: Analyzing trace with hash 833101446, now seen corresponding path program 1 times [2020-11-30 01:21:09,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:21:09,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147172227] [2020-11-30 01:21:09,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:21:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:21:10,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1832 backedges. 1346 proven. 110 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2020-11-30 01:21:10,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147172227] [2020-11-30 01:21:10,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168625312] [2020-11-30 01:21:10,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:21:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:21:10,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:21:10,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:21:11,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1832 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2020-11-30 01:21:11,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:21:11,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-30 01:21:11,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47271524] [2020-11-30 01:21:11,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:21:11,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:21:11,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:21:11,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:21:11,454 INFO L87 Difference]: Start difference. First operand 3920 states and 4163 transitions. Second operand 3 states. [2020-11-30 01:21:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:21:12,261 INFO L93 Difference]: Finished difference Result 8728 states and 9325 transitions. [2020-11-30 01:21:12,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:21:12,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 732 [2020-11-30 01:21:12,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:21:12,292 INFO L225 Difference]: With dead ends: 8728 [2020-11-30 01:21:12,292 INFO L226 Difference]: Without dead ends: 4988 [2020-11-30 01:21:12,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:21:12,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-11-30 01:21:12,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4276. [2020-11-30 01:21:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-11-30 01:21:12,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4545 transitions. [2020-11-30 01:21:12,420 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4545 transitions. Word has length 732 [2020-11-30 01:21:12,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:21:12,422 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4545 transitions. [2020-11-30 01:21:12,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:21:12,423 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4545 transitions. [2020-11-30 01:21:12,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2020-11-30 01:21:12,438 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:21:12,439 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2020-11-30 01:21:12,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-30 01:21:12,663 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:21:12,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:21:12,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1545526936, now seen corresponding path program 1 times [2020-11-30 01:21:12,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:21:12,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97193822] [2020-11-30 01:21:12,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:21:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:21:13,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 1406 proven. 110 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2020-11-30 01:21:13,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97193822] [2020-11-30 01:21:13,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111543169] [2020-11-30 01:21:13,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:21:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:21:13,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:21:13,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:21:14,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 1521 trivial. 0 not checked. [2020-11-30 01:21:14,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:21:14,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-30 01:21:14,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090554802] [2020-11-30 01:21:14,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:21:14,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:21:14,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:21:14,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:21:14,271 INFO L87 Difference]: Start difference. First operand 4276 states and 4545 transitions. Second operand 3 states. [2020-11-30 01:21:14,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:21:14,989 INFO L93 Difference]: Finished difference Result 5346 states and 5659 transitions. [2020-11-30 01:21:14,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:21:14,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 744 [2020-11-30 01:21:14,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:21:15,010 INFO L225 Difference]: With dead ends: 5346 [2020-11-30 01:21:15,010 INFO L226 Difference]: Without dead ends: 5344 [2020-11-30 01:21:15,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:21:15,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2020-11-30 01:21:15,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4276. [2020-11-30 01:21:15,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-11-30 01:21:15,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4543 transitions. [2020-11-30 01:21:15,103 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4543 transitions. Word has length 744 [2020-11-30 01:21:15,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:21:15,105 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4543 transitions. [2020-11-30 01:21:15,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:21:15,105 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4543 transitions. [2020-11-30 01:21:15,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2020-11-30 01:21:15,119 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:21:15,120 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 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] [2020-11-30 01:21:15,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:21:15,335 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:21:15,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:21:15,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1060960162, now seen corresponding path program 1 times [2020-11-30 01:21:15,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:21:15,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920251326] [2020-11-30 01:21:15,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:21:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:21:16,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2453 backedges. 1835 proven. 110 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2020-11-30 01:21:16,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920251326] [2020-11-30 01:21:16,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164208928] [2020-11-30 01:21:16,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:21:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:21:16,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:21:16,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:21:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2453 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-11-30 01:21:17,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:21:17,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-30 01:21:17,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612143196] [2020-11-30 01:21:17,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:21:17,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:21:17,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:21:17,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:21:17,564 INFO L87 Difference]: Start difference. First operand 4276 states and 4543 transitions. Second operand 3 states. [2020-11-30 01:21:18,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:21:18,343 INFO L93 Difference]: Finished difference Result 8370 states and 8907 transitions. [2020-11-30 01:21:18,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:21:18,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 831 [2020-11-30 01:21:18,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:21:18,349 INFO L225 Difference]: With dead ends: 8370 [2020-11-30 01:21:18,350 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:21:18,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 834 GetRequests, 831 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:21:18,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:21:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:21:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:21:18,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:21:18,360 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 831 [2020-11-30 01:21:18,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:21:18,361 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:21:18,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:21:18,361 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:21:18,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:21:18,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-30 01:21:18,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:21:18,694 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2020-11-30 01:21:19,174 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-11-30 01:21:19,534 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-11-30 01:21:19,538 INFO L274 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-11-30 01:21:19,538 INFO L274 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-11-30 01:21:19,538 INFO L274 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-11-30 01:21:19,539 INFO L274 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-11-30 01:21:19,539 INFO L274 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-11-30 01:21:19,539 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,539 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,539 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,539 INFO L274 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-11-30 01:21:19,539 INFO L274 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-11-30 01:21:19,539 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-30 01:21:19,539 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-30 01:21:19,539 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-30 01:21:19,539 INFO L274 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-11-30 01:21:19,539 INFO L274 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-11-30 01:21:19,540 INFO L274 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-11-30 01:21:19,540 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,540 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,541 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,541 INFO L274 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-11-30 01:21:19,541 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-30 01:21:19,541 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-30 01:21:19,541 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-30 01:21:19,542 INFO L274 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-11-30 01:21:19,542 INFO L274 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-11-30 01:21:19,542 INFO L274 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-11-30 01:21:19,542 INFO L274 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-11-30 01:21:19,542 INFO L274 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-11-30 01:21:19,542 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,542 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,543 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,543 INFO L274 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-11-30 01:21:19,543 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-30 01:21:19,543 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-30 01:21:19,544 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-30 01:21:19,544 INFO L274 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-11-30 01:21:19,545 INFO L274 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-11-30 01:21:19,546 INFO L274 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-11-30 01:21:19,546 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,546 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,546 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,546 INFO L274 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-11-30 01:21:19,546 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-30 01:21:19,546 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-30 01:21:19,547 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-30 01:21:19,547 INFO L274 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-11-30 01:21:19,547 INFO L274 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-11-30 01:21:19,547 INFO L274 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-11-30 01:21:19,547 INFO L274 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-11-30 01:21:19,547 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,548 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,548 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,548 INFO L274 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-11-30 01:21:19,548 INFO L274 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-11-30 01:21:19,548 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-30 01:21:19,548 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-30 01:21:19,548 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-30 01:21:19,549 INFO L274 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-11-30 01:21:19,549 INFO L274 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-11-30 01:21:19,549 INFO L274 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-11-30 01:21:19,549 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,549 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,549 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,549 INFO L274 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-11-30 01:21:19,549 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-30 01:21:19,550 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-30 01:21:19,550 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-30 01:21:19,550 INFO L274 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-11-30 01:21:19,550 INFO L274 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-11-30 01:21:19,550 INFO L274 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-11-30 01:21:19,550 INFO L274 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-11-30 01:21:19,550 INFO L274 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-11-30 01:21:19,551 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,551 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,551 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,551 INFO L274 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-11-30 01:21:19,551 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-30 01:21:19,551 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-30 01:21:19,552 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-30 01:21:19,552 INFO L274 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-11-30 01:21:19,552 INFO L274 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-11-30 01:21:19,552 INFO L274 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-11-30 01:21:19,552 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:21:19,552 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,552 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,553 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,553 INFO L274 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-11-30 01:21:19,553 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-30 01:21:19,553 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-30 01:21:19,553 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-30 01:21:19,553 INFO L274 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-11-30 01:21:19,553 INFO L274 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-11-30 01:21:19,553 INFO L274 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-11-30 01:21:19,554 INFO L274 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-11-30 01:21:19,554 INFO L274 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-11-30 01:21:19,554 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,554 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,554 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,554 INFO L274 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-11-30 01:21:19,554 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-30 01:21:19,555 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-30 01:21:19,555 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-30 01:21:19,555 INFO L274 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-11-30 01:21:19,555 INFO L274 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-11-30 01:21:19,555 INFO L274 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-11-30 01:21:19,555 INFO L274 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-11-30 01:21:19,555 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,556 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,556 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,556 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-30 01:21:19,556 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-30 01:21:19,556 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-30 01:21:19,556 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:21:19,556 INFO L274 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-11-30 01:21:19,557 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:21:19,557 INFO L274 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-11-30 01:21:19,557 INFO L274 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-11-30 01:21:19,558 INFO L274 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-11-30 01:21:19,558 INFO L274 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-11-30 01:21:19,558 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,558 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,558 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,558 INFO L274 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-11-30 01:21:19,558 INFO L274 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-11-30 01:21:19,559 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-30 01:21:19,559 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-30 01:21:19,559 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-30 01:21:19,559 INFO L274 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-11-30 01:21:19,559 INFO L274 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-11-30 01:21:19,559 INFO L274 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-11-30 01:21:19,559 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,560 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,560 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,560 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-30 01:21:19,560 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-30 01:21:19,560 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-30 01:21:19,560 INFO L274 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-11-30 01:21:19,560 INFO L274 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-11-30 01:21:19,561 INFO L274 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-11-30 01:21:19,561 INFO L274 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-11-30 01:21:19,561 INFO L274 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-11-30 01:21:19,561 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,561 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,561 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,561 INFO L274 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-11-30 01:21:19,562 INFO L274 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-11-30 01:21:19,562 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-30 01:21:19,562 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-30 01:21:19,562 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-30 01:21:19,562 INFO L274 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-11-30 01:21:19,562 INFO L274 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-11-30 01:21:19,562 INFO L274 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-11-30 01:21:19,563 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,563 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,563 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,563 INFO L274 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-11-30 01:21:19,563 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-30 01:21:19,563 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-30 01:21:19,564 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-30 01:21:19,564 INFO L274 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-11-30 01:21:19,564 INFO L274 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-11-30 01:21:19,564 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 01:21:19,564 INFO L274 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-11-30 01:21:19,564 INFO L274 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-11-30 01:21:19,564 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,565 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,565 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,565 INFO L274 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-11-30 01:21:19,565 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-30 01:21:19,565 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-30 01:21:19,565 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-30 01:21:19,565 INFO L274 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-11-30 01:21:19,566 INFO L274 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-11-30 01:21:19,566 INFO L274 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-11-30 01:21:19,566 INFO L274 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-11-30 01:21:19,566 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,566 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,566 INFO L274 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-11-30 01:21:19,566 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-30 01:21:19,567 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-30 01:21:19,567 INFO L274 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-11-30 01:21:19,567 INFO L274 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-11-30 01:21:19,567 INFO L274 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-11-30 01:21:19,567 INFO L274 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-11-30 01:21:19,567 INFO L274 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-11-30 01:21:19,567 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,568 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,568 INFO L274 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-11-30 01:21:19,568 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:21:19,568 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-30 01:21:19,568 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-30 01:21:19,568 INFO L274 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-11-30 01:21:19,568 INFO L274 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-11-30 01:21:19,569 INFO L274 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-11-30 01:21:19,569 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,569 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,571 INFO L270 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse3 (+ ~a12~0 43))) (let ((.cse2 (<= 7 ~a15~0)) (.cse0 (<= ~a15~0 5)) (.cse5 (<= 9 ~a21~0)) (.cse7 (<= .cse3 0)) (.cse8 (<= ~a15~0 8)) (.cse6 (<= ~a21~0 9)) (.cse4 (<= 10 ~a21~0)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and (< 0 .cse3) (<= ~a12~0 11) .cse1 .cse4) (and .cse5 .cse1 .cse6) (and .cse7 .cse2 .cse8 .cse4) (and .cse0 .cse7) (and .cse5 .cse7 .cse8 .cse6) (and .cse1 (<= ~a21~0 6)) (and (<= (+ ~a12~0 49) 0) .cse1 .cse4) (and (<= 8 ~a21~0) .cse1 (<= ~a21~0 8))))) [2020-11-30 01:21:19,571 INFO L274 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-11-30 01:21:19,571 INFO L274 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-11-30 01:21:19,571 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-30 01:21:19,572 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-30 01:21:19,572 INFO L274 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-11-30 01:21:19,572 INFO L274 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-11-30 01:21:19,572 INFO L274 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-11-30 01:21:19,572 INFO L274 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-11-30 01:21:19,572 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,572 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,573 INFO L277 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-11-30 01:21:19,573 INFO L274 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-11-30 01:21:19,573 INFO L274 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-11-30 01:21:19,573 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-30 01:21:19,573 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-30 01:21:19,573 INFO L274 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-11-30 01:21:19,574 INFO L274 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-11-30 01:21:19,574 INFO L274 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-11-30 01:21:19,574 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,574 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,574 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:21:19,574 INFO L274 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-11-30 01:21:19,574 INFO L274 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-11-30 01:21:19,575 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-30 01:21:19,575 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-30 01:21:19,575 INFO L274 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-11-30 01:21:19,575 INFO L274 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-11-30 01:21:19,575 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,575 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,575 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-30 01:21:19,576 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,576 INFO L274 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-11-30 01:21:19,577 INFO L270 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse3 (+ ~a12~0 43))) (let ((.cse2 (<= 7 ~a15~0)) (.cse0 (<= ~a15~0 5)) (.cse5 (<= 9 ~a21~0)) (.cse7 (<= .cse3 0)) (.cse8 (<= ~a15~0 8)) (.cse6 (<= ~a21~0 9)) (.cse4 (<= 10 ~a21~0)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and (< 0 .cse3) (<= ~a12~0 11) .cse1 .cse4) (and .cse5 .cse1 .cse6) (and .cse7 .cse2 .cse8 .cse4) (and .cse0 .cse7) (and .cse5 .cse7 .cse8 .cse6) (and .cse1 (<= ~a21~0 6)) (and (<= (+ ~a12~0 49) 0) .cse1 .cse4) (and (<= 8 ~a21~0) .cse1 (<= ~a21~0 8))))) [2020-11-30 01:21:19,577 INFO L274 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-11-30 01:21:19,577 INFO L274 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-11-30 01:21:19,577 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-30 01:21:19,577 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-30 01:21:19,578 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-30 01:21:19,578 INFO L274 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-11-30 01:21:19,578 INFO L274 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-11-30 01:21:19,578 INFO L274 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-11-30 01:21:19,578 INFO L274 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-11-30 01:21:19,578 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,578 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,579 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:21:19,579 INFO L274 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-11-30 01:21:19,579 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-30 01:21:19,579 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-30 01:21:19,580 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-30 01:21:19,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:21:19 BoogieIcfgContainer [2020-11-30 01:21:19,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:21:19,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:21:19,632 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:21:19,633 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:21:19,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:20:43" (3/4) ... [2020-11-30 01:21:19,637 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:21:19,678 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 01:21:19,681 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:21:19,683 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:21:19,685 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:21:19,914 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4f5fe350-c47b-44d1-9682-21e60580e614/bin/uautomizer/witness.graphml [2020-11-30 01:21:19,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:21:19,916 INFO L168 Benchmark]: Toolchain (without parser) took 40286.75 ms. Allocated memory was 83.9 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 51.7 MB in the beginning and 1.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 437.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:21:19,917 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 83.9 MB. Free memory was 43.6 MB in the beginning and 43.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:21:19,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1006.65 ms. Allocated memory is still 83.9 MB. Free memory was 51.3 MB in the beginning and 39.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:21:19,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 186.73 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 39.3 MB in the beginning and 83.2 MB in the end (delta: -43.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:21:19,919 INFO L168 Benchmark]: Boogie Preprocessor took 146.82 ms. Allocated memory is still 111.1 MB. Free memory was 83.2 MB in the beginning and 76.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:21:19,920 INFO L168 Benchmark]: RCFGBuilder took 2366.70 ms. Allocated memory is still 111.1 MB. Free memory was 76.8 MB in the beginning and 36.4 MB in the end (delta: 40.4 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:21:19,921 INFO L168 Benchmark]: TraceAbstraction took 36288.62 ms. Allocated memory was 111.1 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 36.0 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 376.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:21:19,921 INFO L168 Benchmark]: Witness Printer took 282.05 ms. Allocated memory is still 1.9 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:21:19,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 83.9 MB. Free memory was 43.6 MB in the beginning and 43.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1006.65 ms. Allocated memory is still 83.9 MB. Free memory was 51.3 MB in the beginning and 39.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 186.73 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 39.3 MB in the beginning and 83.2 MB in the end (delta: -43.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 146.82 ms. Allocated memory is still 111.1 MB. Free memory was 83.2 MB in the beginning and 76.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2366.70 ms. Allocated memory is still 111.1 MB. Free memory was 76.8 MB in the beginning and 36.4 MB in the end (delta: 40.4 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 36288.62 ms. Allocated memory was 111.1 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 36.0 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 376.8 MB. Max. memory is 16.1 GB. * Witness Printer took 282.05 ms. Allocated memory is still 1.9 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 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: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((a15 <= 5 && a24 == 1) || (7 <= a15 && a24 == 1)) || (((0 < a12 + 43 && a12 <= 11) && a24 == 1) && 10 <= a21)) || ((9 <= a21 && a24 == 1) && a21 <= 9)) || (((a12 + 43 <= 0 && 7 <= a15) && a15 <= 8) && 10 <= a21)) || (a15 <= 5 && a12 + 43 <= 0)) || (((9 <= a21 && a12 + 43 <= 0) && a15 <= 8) && a21 <= 9)) || (a24 == 1 && a21 <= 6)) || ((a12 + 49 <= 0 && a24 == 1) && 10 <= a21)) || ((8 <= a21 && a24 == 1) && a21 <= 8) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((a15 <= 5 && a24 == 1) || (7 <= a15 && a24 == 1)) || (((0 < a12 + 43 && a12 <= 11) && a24 == 1) && 10 <= a21)) || ((9 <= a21 && a24 == 1) && a21 <= 9)) || (((a12 + 43 <= 0 && 7 <= a15) && a15 <= 8) && 10 <= a21)) || (a15 <= 5 && a12 + 43 <= 0)) || (((9 <= a21 && a12 + 43 <= 0) && a15 <= 8) && a21 <= 9)) || (a24 == 1 && a21 <= 6)) || ((a12 + 49 <= 0 && a24 == 1) && 10 <= a21)) || ((8 <= a21 && a24 == 1) && a21 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 35.1s, OverallIterations: 15, TraceHistogramMax: 8, AutomataDifference: 18.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1975 SDtfs, 1956 SDslu, 80 SDs, 0 SdLazy, 7683 SolverSat, 943 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3765 GetRequests, 3730 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4276occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 3738 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 67 NumberOfFragments, 217 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3266 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 578 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 10243 NumberOfCodeBlocks, 10243 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 10221 ConstructedInterpolants, 0 QuantifiedInterpolants, 11463409 SizeOfPredicates, 6 NumberOfNonLiveVariables, 4873 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 22 InterpolantComputations, 15 PerfectInterpolantSequences, 20224/20916 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...