./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label30.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_5e61643f-e3bc-430c-acda-8778e6e423ab/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label30.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/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 624df73c4f57632c06893f947fe7f316d917f969 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:19:39,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:39,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:39,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:39,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:39,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:39,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:39,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:39,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:39,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:39,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:39,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:39,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:39,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:39,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:39,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:39,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:39,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:39,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:39,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:39,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:39,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:39,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:39,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:39,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:39,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:39,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:39,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:39,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:39,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:39,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:39,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:39,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:39,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:39,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:39,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:39,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:39,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:39,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:39,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:39,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:39,921 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:19:39,963 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:39,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:39,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:39,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:39,965 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:39,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:39,965 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:39,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:39,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:39,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:39,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:19:39,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:19:39,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:19:39,967 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:39,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:39,967 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:39,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:19:39,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:39,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:39,976 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:19:39,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:19:39,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:19:39,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:39,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:19:39,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:19:39,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:39,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:19:39,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:19:39,979 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:39,979 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_5e61643f-e3bc-430c-acda-8778e6e423ab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624df73c4f57632c06893f947fe7f316d917f969 [2020-11-28 03:19:40,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:40,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:40,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:40,293 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:40,296 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:40,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem10_label30.c [2020-11-28 03:19:40,363 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/bin/uautomizer/data/b44c86caa/12604077162b41d5b5210a37a5042c87/FLAG1d6dbdab4 [2020-11-28 03:19:40,920 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:40,921 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/sv-benchmarks/c/eca-rers2012/Problem10_label30.c [2020-11-28 03:19:40,933 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/bin/uautomizer/data/b44c86caa/12604077162b41d5b5210a37a5042c87/FLAG1d6dbdab4 [2020-11-28 03:19:41,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/bin/uautomizer/data/b44c86caa/12604077162b41d5b5210a37a5042c87 [2020-11-28 03:19:41,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:41,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:41,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:41,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:41,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:41,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e6b751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41, skipping insertion in model container [2020-11-28 03:19:41,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:41,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:41,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:41,724 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:41,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:41,887 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:41,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41 WrapperNode [2020-11-28 03:19:41,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:41,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:41,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:41,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:41,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:42,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:42,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:42,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:42,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:42,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:42,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:42,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:42,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:42,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:42,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:42,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:42,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:42,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:42,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:42,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:42,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/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 [2020-11-28 03:19:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:19:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:42,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:43,837 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:43,837 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:19:43,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:43 BoogieIcfgContainer [2020-11-28 03:19:43,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:43,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:19:43,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:19:43,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:19:43,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:41" (1/3) ... [2020-11-28 03:19:43,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690189de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:43, skipping insertion in model container [2020-11-28 03:19:43,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (2/3) ... [2020-11-28 03:19:43,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690189de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:43, skipping insertion in model container [2020-11-28 03:19:43,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:43" (3/3) ... [2020-11-28 03:19:43,849 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label30.c [2020-11-28 03:19:43,860 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:19:43,865 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:19:43,877 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:19:43,909 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:19:43,909 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:19:43,909 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:19:43,909 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:43,909 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:43,910 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:19:43,910 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:43,910 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:19:43,935 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-11-28 03:19:43,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 03:19:43,945 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:43,946 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] [2020-11-28 03:19:43,946 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:43,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:43,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1089129850, now seen corresponding path program 1 times [2020-11-28 03:19:43,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:43,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424142942] [2020-11-28 03:19:43,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:44,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:44,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424142942] [2020-11-28 03:19:44,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:44,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:19:44,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76758418] [2020-11-28 03:19:44,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:44,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:44,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:44,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:44,253 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-11-28 03:19:45,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:45,534 INFO L93 Difference]: Finished difference Result 568 states and 982 transitions. [2020-11-28 03:19:45,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:45,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-11-28 03:19:45,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:45,560 INFO L225 Difference]: With dead ends: 568 [2020-11-28 03:19:45,560 INFO L226 Difference]: Without dead ends: 282 [2020-11-28 03:19:45,568 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 [2020-11-28 03:19:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-28 03:19:45,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-11-28 03:19:45,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-28 03:19:45,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 412 transitions. [2020-11-28 03:19:45,656 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 412 transitions. Word has length 34 [2020-11-28 03:19:45,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:45,656 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 412 transitions. [2020-11-28 03:19:45,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:45,657 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 412 transitions. [2020-11-28 03:19:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-28 03:19:45,664 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:45,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:45,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:19:45,665 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:45,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:45,669 INFO L82 PathProgramCache]: Analyzing trace with hash 424906012, now seen corresponding path program 1 times [2020-11-28 03:19:45,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:45,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036283756] [2020-11-28 03:19:45,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:45,916 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:45,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036283756] [2020-11-28 03:19:45,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:45,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:19:45,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875133837] [2020-11-28 03:19:45,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:45,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:45,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:45,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:45,925 INFO L87 Difference]: Start difference. First operand 282 states and 412 transitions. Second operand 3 states. [2020-11-28 03:19:46,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:46,840 INFO L93 Difference]: Finished difference Result 840 states and 1231 transitions. [2020-11-28 03:19:46,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:46,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-11-28 03:19:46,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:46,847 INFO L225 Difference]: With dead ends: 840 [2020-11-28 03:19:46,847 INFO L226 Difference]: Without dead ends: 560 [2020-11-28 03:19:46,850 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 [2020-11-28 03:19:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-11-28 03:19:46,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-11-28 03:19:46,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-11-28 03:19:46,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 730 transitions. [2020-11-28 03:19:46,879 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 730 transitions. Word has length 104 [2020-11-28 03:19:46,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:46,880 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 730 transitions. [2020-11-28 03:19:46,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:46,880 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 730 transitions. [2020-11-28 03:19:46,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-11-28 03:19:46,883 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:46,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:46,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:19:46,884 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:46,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:46,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1617432374, now seen corresponding path program 1 times [2020-11-28 03:19:46,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:46,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930717401] [2020-11-28 03:19:46,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:47,072 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:47,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930717401] [2020-11-28 03:19:47,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672978501] [2020-11-28 03:19:47,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/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 [2020-11-28 03:19:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:47,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:19:47,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:47,356 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:47,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:19:47,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:19:47,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800484294] [2020-11-28 03:19:47,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:47,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:47,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:47,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:19:47,360 INFO L87 Difference]: Start difference. First operand 560 states and 730 transitions. Second operand 3 states. [2020-11-28 03:19:48,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:48,372 INFO L93 Difference]: Finished difference Result 979 states and 1299 transitions. [2020-11-28 03:19:48,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:48,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-11-28 03:19:48,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:48,379 INFO L225 Difference]: With dead ends: 979 [2020-11-28 03:19:48,379 INFO L226 Difference]: Without dead ends: 977 [2020-11-28 03:19:48,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:19:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-11-28 03:19:48,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 699. [2020-11-28 03:19:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-11-28 03:19:48,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 944 transitions. [2020-11-28 03:19:48,425 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 944 transitions. Word has length 109 [2020-11-28 03:19:48,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:48,427 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 944 transitions. [2020-11-28 03:19:48,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:48,427 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 944 transitions. [2020-11-28 03:19:48,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-11-28 03:19:48,439 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:48,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:48,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-28 03:19:48,668 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:48,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:48,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1574774876, now seen corresponding path program 1 times [2020-11-28 03:19:48,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:48,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613901200] [2020-11-28 03:19:48,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:49,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613901200] [2020-11-28 03:19:49,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:49,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:19:49,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708759152] [2020-11-28 03:19:49,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:19:49,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:49,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:19:49,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:19:49,029 INFO L87 Difference]: Start difference. First operand 699 states and 944 transitions. Second operand 4 states. [2020-11-28 03:19:49,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:49,892 INFO L93 Difference]: Finished difference Result 1549 states and 2059 transitions. [2020-11-28 03:19:49,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:19:49,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-11-28 03:19:49,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:49,904 INFO L225 Difference]: With dead ends: 1549 [2020-11-28 03:19:49,904 INFO L226 Difference]: Without dead ends: 852 [2020-11-28 03:19:49,906 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 [2020-11-28 03:19:49,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2020-11-28 03:19:49,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 838. [2020-11-28 03:19:49,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-11-28 03:19:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1088 transitions. [2020-11-28 03:19:49,935 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1088 transitions. Word has length 152 [2020-11-28 03:19:49,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:49,936 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1088 transitions. [2020-11-28 03:19:49,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:19:49,936 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1088 transitions. [2020-11-28 03:19:49,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-11-28 03:19:49,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:49,940 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-28 03:19:49,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:19:49,940 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:49,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:49,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1850729028, now seen corresponding path program 1 times [2020-11-28 03:19:49,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:49,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969233394] [2020-11-28 03:19:49,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:50,293 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:50,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969233394] [2020-11-28 03:19:50,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:50,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:19:50,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68083635] [2020-11-28 03:19:50,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:19:50,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:50,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:19:50,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:19:50,297 INFO L87 Difference]: Start difference. First operand 838 states and 1088 transitions. Second operand 7 states. [2020-11-28 03:19:51,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:51,002 INFO L93 Difference]: Finished difference Result 1590 states and 2085 transitions. [2020-11-28 03:19:51,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:19:51,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-11-28 03:19:51,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:51,008 INFO L225 Difference]: With dead ends: 1590 [2020-11-28 03:19:51,008 INFO L226 Difference]: Without dead ends: 838 [2020-11-28 03:19:51,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:19:51,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-11-28 03:19:51,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-11-28 03:19:51,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-11-28 03:19:51,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1082 transitions. [2020-11-28 03:19:51,032 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1082 transitions. Word has length 187 [2020-11-28 03:19:51,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:51,032 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1082 transitions. [2020-11-28 03:19:51,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:19:51,032 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1082 transitions. [2020-11-28 03:19:51,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-11-28 03:19:51,035 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:51,035 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-28 03:19:51,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:19:51,036 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:51,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:51,036 INFO L82 PathProgramCache]: Analyzing trace with hash 57958092, now seen corresponding path program 1 times [2020-11-28 03:19:51,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:51,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231542625] [2020-11-28 03:19:51,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:51,186 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:51,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231542625] [2020-11-28 03:19:51,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:51,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:19:51,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726450787] [2020-11-28 03:19:51,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:51,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:51,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:51,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:51,189 INFO L87 Difference]: Start difference. First operand 838 states and 1082 transitions. Second operand 3 states. [2020-11-28 03:19:51,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:51,996 INFO L93 Difference]: Finished difference Result 1952 states and 2639 transitions. [2020-11-28 03:19:51,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:51,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2020-11-28 03:19:51,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:52,004 INFO L225 Difference]: With dead ends: 1952 [2020-11-28 03:19:52,006 INFO L226 Difference]: Without dead ends: 1255 [2020-11-28 03:19:52,008 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 [2020-11-28 03:19:52,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-11-28 03:19:52,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 977. [2020-11-28 03:19:52,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-11-28 03:19:52,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1223 transitions. [2020-11-28 03:19:52,033 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1223 transitions. Word has length 194 [2020-11-28 03:19:52,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:52,034 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1223 transitions. [2020-11-28 03:19:52,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:52,034 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1223 transitions. [2020-11-28 03:19:52,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-11-28 03:19:52,038 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:52,038 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:52,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:19:52,045 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:52,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:52,046 INFO L82 PathProgramCache]: Analyzing trace with hash 457366122, now seen corresponding path program 1 times [2020-11-28 03:19:52,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:52,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797357022] [2020-11-28 03:19:52,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:52,250 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:52,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797357022] [2020-11-28 03:19:52,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:52,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:19:52,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660572147] [2020-11-28 03:19:52,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:52,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:52,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:52,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:52,255 INFO L87 Difference]: Start difference. First operand 977 states and 1223 transitions. Second operand 3 states. [2020-11-28 03:19:53,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:53,063 INFO L93 Difference]: Finished difference Result 2230 states and 2921 transitions. [2020-11-28 03:19:53,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:53,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 223 [2020-11-28 03:19:53,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:53,071 INFO L225 Difference]: With dead ends: 2230 [2020-11-28 03:19:53,071 INFO L226 Difference]: Without dead ends: 1394 [2020-11-28 03:19:53,073 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 [2020-11-28 03:19:53,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-11-28 03:19:53,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-11-28 03:19:53,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-11-28 03:19:53,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1556 transitions. [2020-11-28 03:19:53,105 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1556 transitions. Word has length 223 [2020-11-28 03:19:53,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:53,105 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1556 transitions. [2020-11-28 03:19:53,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:53,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1556 transitions. [2020-11-28 03:19:53,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-11-28 03:19:53,111 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:53,112 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:53,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:19:53,112 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:53,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:53,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1204121151, now seen corresponding path program 1 times [2020-11-28 03:19:53,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:53,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29621295] [2020-11-28 03:19:53,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:53,400 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-11-28 03:19:53,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29621295] [2020-11-28 03:19:53,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:53,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:19:53,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252716591] [2020-11-28 03:19:53,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:19:53,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:53,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:19:53,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:19:53,403 INFO L87 Difference]: Start difference. First operand 1255 states and 1556 transitions. Second operand 4 states. [2020-11-28 03:19:54,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:54,705 INFO L93 Difference]: Finished difference Result 3064 states and 3835 transitions. [2020-11-28 03:19:54,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:19:54,705 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 312 [2020-11-28 03:19:54,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:54,715 INFO L225 Difference]: With dead ends: 3064 [2020-11-28 03:19:54,715 INFO L226 Difference]: Without dead ends: 1950 [2020-11-28 03:19:54,717 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 [2020-11-28 03:19:54,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2020-11-28 03:19:54,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1811. [2020-11-28 03:19:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1811 states. [2020-11-28 03:19:54,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2225 transitions. [2020-11-28 03:19:54,759 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2225 transitions. Word has length 312 [2020-11-28 03:19:54,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:54,760 INFO L481 AbstractCegarLoop]: Abstraction has 1811 states and 2225 transitions. [2020-11-28 03:19:54,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:19:54,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2225 transitions. [2020-11-28 03:19:54,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-11-28 03:19:54,767 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:54,767 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:54,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:19:54,768 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:54,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:54,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1362085227, now seen corresponding path program 1 times [2020-11-28 03:19:54,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:54,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853426854] [2020-11-28 03:19:54,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:55,031 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-11-28 03:19:55,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853426854] [2020-11-28 03:19:55,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:55,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:19:55,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476487771] [2020-11-28 03:19:55,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:55,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:55,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:55,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:55,034 INFO L87 Difference]: Start difference. First operand 1811 states and 2225 transitions. Second operand 3 states. [2020-11-28 03:19:55,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:55,718 INFO L93 Difference]: Finished difference Result 4174 states and 5220 transitions. [2020-11-28 03:19:55,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:55,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 331 [2020-11-28 03:19:55,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:55,719 INFO L225 Difference]: With dead ends: 4174 [2020-11-28 03:19:55,719 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:19:55,722 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 [2020-11-28 03:19:55,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:19:55,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:19:55,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:19:55,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:19:55,723 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 331 [2020-11-28 03:19:55,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:55,723 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:55,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:55,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:19:55,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:19:55,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:19:55,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:19:56,005 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2020-11-28 03:19:56,143 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2020-11-28 03:19:56,147 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-11-28 03:19:56,147 INFO L274 CegarLoopResult]: For program point L564(lines 564 582) no Hoare annotation was computed. [2020-11-28 03:19:56,147 INFO L274 CegarLoopResult]: For program point L333(lines 333 582) no Hoare annotation was computed. [2020-11-28 03:19:56,147 INFO L274 CegarLoopResult]: For program point L367(lines 367 582) no Hoare annotation was computed. [2020-11-28 03:19:56,147 INFO L274 CegarLoopResult]: For program point L301(lines 301 582) no Hoare annotation was computed. [2020-11-28 03:19:56,147 INFO L274 CegarLoopResult]: For program point L235(lines 235 582) no Hoare annotation was computed. [2020-11-28 03:19:56,147 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,147 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,148 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,148 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,148 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,148 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,148 INFO L274 CegarLoopResult]: For program point L533(lines 533 582) no Hoare annotation was computed. [2020-11-28 03:19:56,148 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-28 03:19:56,148 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-28 03:19:56,148 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-28 03:19:56,148 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-28 03:19:56,148 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-28 03:19:56,149 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-28 03:19:56,149 INFO L274 CegarLoopResult]: For program point L567(lines 567 582) no Hoare annotation was computed. [2020-11-28 03:19:56,149 INFO L274 CegarLoopResult]: For program point L435(lines 435 582) no Hoare annotation was computed. [2020-11-28 03:19:56,149 INFO L274 CegarLoopResult]: For program point L336(lines 336 582) no Hoare annotation was computed. [2020-11-28 03:19:56,149 INFO L274 CegarLoopResult]: For program point L270(lines 270 582) no Hoare annotation was computed. [2020-11-28 03:19:56,149 INFO L274 CegarLoopResult]: For program point L403(lines 403 582) no Hoare annotation was computed. [2020-11-28 03:19:56,149 INFO L274 CegarLoopResult]: For program point L370(lines 370 582) no Hoare annotation was computed. [2020-11-28 03:19:56,149 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,149 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,149 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,150 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,150 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,150 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,150 INFO L274 CegarLoopResult]: For program point L536(lines 536 582) no Hoare annotation was computed. [2020-11-28 03:19:56,150 INFO L274 CegarLoopResult]: For program point L503(lines 503 582) no Hoare annotation was computed. [2020-11-28 03:19:56,150 INFO L274 CegarLoopResult]: For program point L470(lines 470 582) no Hoare annotation was computed. [2020-11-28 03:19:56,150 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-28 03:19:56,150 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-28 03:19:56,150 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-28 03:19:56,150 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-28 03:19:56,150 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-28 03:19:56,151 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-28 03:19:56,151 INFO L274 CegarLoopResult]: For program point L339(lines 339 582) no Hoare annotation was computed. [2020-11-28 03:19:56,151 INFO L274 CegarLoopResult]: For program point L306(lines 306 582) no Hoare annotation was computed. [2020-11-28 03:19:56,151 INFO L274 CegarLoopResult]: For program point L241(lines 241 582) no Hoare annotation was computed. [2020-11-28 03:19:56,151 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,151 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,151 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,151 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,151 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,151 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,151 INFO L274 CegarLoopResult]: For program point L539(lines 539 582) no Hoare annotation was computed. [2020-11-28 03:19:56,152 INFO L274 CegarLoopResult]: For program point L440(lines 440 582) no Hoare annotation was computed. [2020-11-28 03:19:56,152 INFO L274 CegarLoopResult]: For program point L275(lines 275 582) no Hoare annotation was computed. [2020-11-28 03:19:56,152 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-28 03:19:56,152 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-28 03:19:56,152 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-28 03:19:56,152 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-28 03:19:56,152 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-28 03:19:56,152 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-28 03:19:56,152 INFO L274 CegarLoopResult]: For program point L573(lines 573 582) no Hoare annotation was computed. [2020-11-28 03:19:56,152 INFO L274 CegarLoopResult]: For program point L408(lines 408 582) no Hoare annotation was computed. [2020-11-28 03:19:56,152 INFO L274 CegarLoopResult]: For program point L375(lines 375 582) no Hoare annotation was computed. [2020-11-28 03:19:56,153 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:19:56,153 INFO L274 CegarLoopResult]: For program point L475(lines 475 582) no Hoare annotation was computed. [2020-11-28 03:19:56,153 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,153 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,153 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,153 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,153 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,153 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,153 INFO L274 CegarLoopResult]: For program point L509(lines 509 582) no Hoare annotation was computed. [2020-11-28 03:19:56,153 INFO L274 CegarLoopResult]: For program point L311(lines 311 582) no Hoare annotation was computed. [2020-11-28 03:19:56,154 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-28 03:19:56,154 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-28 03:19:56,154 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-28 03:19:56,154 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-28 03:19:56,154 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-28 03:19:56,154 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-28 03:19:56,154 INFO L274 CegarLoopResult]: For program point L345(lines 345 582) no Hoare annotation was computed. [2020-11-28 03:19:56,154 INFO L274 CegarLoopResult]: For program point L246(lines 246 582) no Hoare annotation was computed. [2020-11-28 03:19:56,154 INFO L274 CegarLoopResult]: For program point L544(lines 544 582) no Hoare annotation was computed. [2020-11-28 03:19:56,154 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,155 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,155 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,155 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,155 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,155 INFO L274 CegarLoopResult]: For program point L446(lines 446 582) no Hoare annotation was computed. [2020-11-28 03:19:56,155 INFO L274 CegarLoopResult]: For program point L413(lines 413 582) no Hoare annotation was computed. [2020-11-28 03:19:56,155 INFO L274 CegarLoopResult]: For program point L380(lines 380 582) no Hoare annotation was computed. [2020-11-28 03:19:56,155 INFO L274 CegarLoopResult]: For program point L281(lines 281 582) no Hoare annotation was computed. [2020-11-28 03:19:56,155 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-28 03:19:56,155 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-28 03:19:56,155 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-28 03:19:56,156 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-28 03:19:56,156 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-28 03:19:56,163 INFO L274 CegarLoopResult]: For program point L579(lines 579 582) no Hoare annotation was computed. [2020-11-28 03:19:56,163 INFO L274 CegarLoopResult]: For program point L249(lines 249 582) no Hoare annotation was computed. [2020-11-28 03:19:56,164 INFO L274 CegarLoopResult]: For program point L514(lines 514 582) no Hoare annotation was computed. [2020-11-28 03:19:56,164 INFO L274 CegarLoopResult]: For program point L481(lines 481 582) no Hoare annotation was computed. [2020-11-28 03:19:56,164 INFO L274 CegarLoopResult]: For program point L316(lines 316 582) no Hoare annotation was computed. [2020-11-28 03:19:56,164 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,164 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,164 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,165 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,165 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,165 INFO L274 CegarLoopResult]: For program point L350(lines 350 582) no Hoare annotation was computed. [2020-11-28 03:19:56,165 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:19:56,165 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-28 03:19:56,165 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-28 03:19:56,165 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-28 03:19:56,166 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-28 03:19:56,166 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-28 03:19:56,166 INFO L270 CegarLoopResult]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and (<= 8 ~a19~0) .cse0 .cse1) (and (= ~a10~0 1) .cse0 .cse1) (and .cse0 .cse1 (<= ~a1~0 206)))) [2020-11-28 03:19:56,166 INFO L274 CegarLoopResult]: For program point L550(lines 550 582) no Hoare annotation was computed. [2020-11-28 03:19:56,166 INFO L274 CegarLoopResult]: For program point L418(lines 418 582) no Hoare annotation was computed. [2020-11-28 03:19:56,167 INFO L274 CegarLoopResult]: For program point L385(lines 385 582) no Hoare annotation was computed. [2020-11-28 03:19:56,167 INFO L274 CegarLoopResult]: For program point L220(lines 220 582) no Hoare annotation was computed. [2020-11-28 03:19:56,167 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,167 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,167 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,167 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,167 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,168 INFO L274 CegarLoopResult]: For program point L452(lines 452 582) no Hoare annotation was computed. [2020-11-28 03:19:56,168 INFO L274 CegarLoopResult]: For program point L287(lines 287 582) no Hoare annotation was computed. [2020-11-28 03:19:56,168 INFO L274 CegarLoopResult]: For program point L254(lines 254 582) no Hoare annotation was computed. [2020-11-28 03:19:56,168 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-28 03:19:56,169 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-28 03:19:56,169 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-28 03:19:56,169 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-28 03:19:56,169 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-28 03:19:56,170 INFO L274 CegarLoopResult]: For program point L519(lines 519 582) no Hoare annotation was computed. [2020-11-28 03:19:56,170 INFO L274 CegarLoopResult]: For program point L486(lines 486 582) no Hoare annotation was computed. [2020-11-28 03:19:56,170 INFO L277 CegarLoopResult]: At program point L586(lines 586 602) the Hoare annotation is: true [2020-11-28 03:19:56,170 INFO L274 CegarLoopResult]: For program point L388(lines 388 582) no Hoare annotation was computed. [2020-11-28 03:19:56,170 INFO L274 CegarLoopResult]: For program point L355(lines 355 582) no Hoare annotation was computed. [2020-11-28 03:19:56,170 INFO L274 CegarLoopResult]: For program point L322(lines 322 582) no Hoare annotation was computed. [2020-11-28 03:19:56,170 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:19:56,171 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,171 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,171 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,171 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,171 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,171 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-28 03:19:56,171 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-28 03:19:56,172 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-28 03:19:56,172 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-28 03:19:56,172 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-28 03:19:56,172 INFO L274 CegarLoopResult]: For program point L555(lines 555 582) no Hoare annotation was computed. [2020-11-28 03:19:56,173 INFO L274 CegarLoopResult]: For program point L225(lines 225 582) no Hoare annotation was computed. [2020-11-28 03:19:56,173 INFO L274 CegarLoopResult]: For program point L424(lines 424 582) no Hoare annotation was computed. [2020-11-28 03:19:56,173 INFO L274 CegarLoopResult]: For program point L259(lines 259 582) no Hoare annotation was computed. [2020-11-28 03:19:56,173 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,173 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,174 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,174 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,174 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:19:56,174 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,174 INFO L274 CegarLoopResult]: For program point L524(lines 524 582) no Hoare annotation was computed. [2020-11-28 03:19:56,175 INFO L274 CegarLoopResult]: For program point L491(lines 491 582) no Hoare annotation was computed. [2020-11-28 03:19:56,175 INFO L274 CegarLoopResult]: For program point L458(lines 458 582) no Hoare annotation was computed. [2020-11-28 03:19:56,175 INFO L274 CegarLoopResult]: For program point L293(lines 293 582) no Hoare annotation was computed. [2020-11-28 03:19:56,175 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-28 03:19:56,175 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-28 03:19:56,175 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-28 03:19:56,175 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-28 03:19:56,176 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-28 03:19:56,176 INFO L274 CegarLoopResult]: For program point L558(lines 558 582) no Hoare annotation was computed. [2020-11-28 03:19:56,176 INFO L274 CegarLoopResult]: For program point L393(lines 393 582) no Hoare annotation was computed. [2020-11-28 03:19:56,176 INFO L274 CegarLoopResult]: For program point L327(lines 327 582) no Hoare annotation was computed. [2020-11-28 03:19:56,176 INFO L270 CegarLoopResult]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and (<= 8 ~a19~0) .cse0 .cse1) (and (= ~a10~0 1) .cse0 .cse1) (and .cse0 .cse1 (<= ~a1~0 206)))) [2020-11-28 03:19:56,176 INFO L274 CegarLoopResult]: For program point L361(lines 361 582) no Hoare annotation was computed. [2020-11-28 03:19:56,177 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,177 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,177 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,177 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,177 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-28 03:19:56,177 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,177 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,178 INFO L274 CegarLoopResult]: For program point L527(lines 527 582) no Hoare annotation was computed. [2020-11-28 03:19:56,178 INFO L274 CegarLoopResult]: For program point L296(lines 296 582) no Hoare annotation was computed. [2020-11-28 03:19:56,178 INFO L274 CegarLoopResult]: For program point L230(lines 230 582) no Hoare annotation was computed. [2020-11-28 03:19:56,178 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-28 03:19:56,178 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-28 03:19:56,178 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-28 03:19:56,178 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-28 03:19:56,179 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-28 03:19:56,179 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-28 03:19:56,179 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:19:56,179 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 03:19:56,179 INFO L274 CegarLoopResult]: For program point L429(lines 429 582) no Hoare annotation was computed. [2020-11-28 03:19:56,179 INFO L274 CegarLoopResult]: For program point L330(lines 330 582) no Hoare annotation was computed. [2020-11-28 03:19:56,180 INFO L274 CegarLoopResult]: For program point L264(lines 264 582) no Hoare annotation was computed. [2020-11-28 03:19:56,180 INFO L274 CegarLoopResult]: For program point L364(lines 364 582) no Hoare annotation was computed. [2020-11-28 03:19:56,180 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,180 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,180 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,180 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,180 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,181 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:19:56,181 INFO L274 CegarLoopResult]: For program point L497(lines 497 582) no Hoare annotation was computed. [2020-11-28 03:19:56,181 INFO L274 CegarLoopResult]: For program point L464(lines 464 582) no Hoare annotation was computed. [2020-11-28 03:19:56,181 INFO L274 CegarLoopResult]: For program point L398(lines 398 582) no Hoare annotation was computed. [2020-11-28 03:19:56,181 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-28 03:19:56,181 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-28 03:19:56,181 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-28 03:19:56,182 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-28 03:19:56,182 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-28 03:19:56,182 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-28 03:19:56,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:19:56 BoogieIcfgContainer [2020-11-28 03:19:56,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:19:56,205 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:56,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:56,206 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:56,206 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:43" (3/4) ... [2020-11-28 03:19:56,210 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:19:56,235 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:19:56,236 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:19:56,237 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:19:56,238 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:19:56,389 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5e61643f-e3bc-430c-acda-8778e6e423ab/bin/uautomizer/witness.graphml [2020-11-28 03:19:56,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:56,391 INFO L168 Benchmark]: Toolchain (without parser) took 15176.52 ms. Allocated memory was 121.6 MB in the beginning and 331.4 MB in the end (delta: 209.7 MB). Free memory was 90.8 MB in the beginning and 105.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 194.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:56,391 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 88.1 MB. Free memory was 48.9 MB in the beginning and 48.9 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:56,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.50 ms. Allocated memory is still 121.6 MB. Free memory was 90.5 MB in the beginning and 80.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:56,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.61 ms. Allocated memory is still 121.6 MB. Free memory was 80.7 MB in the beginning and 72.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:56,393 INFO L168 Benchmark]: Boogie Preprocessor took 109.31 ms. Allocated memory is still 121.6 MB. Free memory was 72.7 MB in the beginning and 67.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:56,393 INFO L168 Benchmark]: RCFGBuilder took 1721.40 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 67.6 MB in the beginning and 80.1 MB in the end (delta: -12.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:56,393 INFO L168 Benchmark]: TraceAbstraction took 12363.66 ms. Allocated memory was 146.8 MB in the beginning and 331.4 MB in the end (delta: 184.5 MB). Free memory was 79.1 MB in the beginning and 120.3 MB in the end (delta: -41.1 MB). Peak memory consumption was 144.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:56,394 INFO L168 Benchmark]: Witness Printer took 184.29 ms. Allocated memory is still 331.4 MB. Free memory was 120.3 MB in the beginning and 105.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:56,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 88.1 MB. Free memory was 48.9 MB in the beginning and 48.9 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 669.50 ms. Allocated memory is still 121.6 MB. Free memory was 90.5 MB in the beginning and 80.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 118.61 ms. Allocated memory is still 121.6 MB. Free memory was 80.7 MB in the beginning and 72.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.31 ms. Allocated memory is still 121.6 MB. Free memory was 72.7 MB in the beginning and 67.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1721.40 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 67.6 MB in the beginning and 80.1 MB in the end (delta: -12.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12363.66 ms. Allocated memory was 146.8 MB in the beginning and 331.4 MB in the end (delta: 184.5 MB). Free memory was 79.1 MB in the beginning and 120.3 MB in the end (delta: -41.1 MB). Peak memory consumption was 144.3 MB. Max. memory is 16.1 GB. * Witness Printer took 184.29 ms. Allocated memory is still 331.4 MB. Free memory was 120.3 MB in the beginning and 105.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((8 <= a19 && 14 == a4) && a12 == 0) || ((a10 == 1 && 14 == a4) && a12 == 0)) || ((14 == a4 && a12 == 0) && a1 <= 206) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((8 <= a19 && 14 == a4) && a12 == 0) || ((a10 == 1 && 14 == a4) && a12 == 0)) || ((14 == a4 && a12 == 0) && a1 <= 206) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.8s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 683 SDtfs, 1032 SDslu, 53 SDs, 0 SdLazy, 3963 SolverSat, 660 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1811occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 848 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 63 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1312 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 446 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1755 NumberOfCodeBlocks, 1755 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1745 ConstructedInterpolants, 0 QuantifiedInterpolants, 1251686 SizeOfPredicates, 1 NumberOfNonLiveVariables, 203 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 1182/1195 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...