./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label46.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem02_label46.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 5878a962bdfeff7ba2b8ce771a644c28f32d5ca8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:31:36,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:31:36,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:31:36,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:31:36,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:31:36,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:31:36,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:31:36,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:31:36,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:31:36,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:31:36,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:31:36,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:31:36,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:31:36,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:31:36,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:31:36,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:31:36,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:31:36,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:31:36,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:31:36,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:31:36,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:31:36,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:31:36,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:31:36,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:31:36,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:31:36,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:31:36,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:31:36,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:31:36,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:31:36,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:31:36,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:31:36,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:31:36,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:31:36,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:31:36,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:31:36,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:31:36,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:31:36,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:31:36,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:31:36,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:31:36,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:31:36,956 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:31:36,979 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:31:36,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:31:36,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:31:36,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:31:36,980 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:31:36,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:31:36,981 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:31:36,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:31:36,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:31:36,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:31:36,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:31:36,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:31:36,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:31:36,982 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:31:36,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:31:36,982 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:31:36,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:31:36,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:31:36,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:31:36,983 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:31:36,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:31:36,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:31:36,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:31:36,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:31:36,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:31:36,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:31:36,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:31:36,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:31:36,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:31:36,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 5878a962bdfeff7ba2b8ce771a644c28f32d5ca8 [2020-10-19 22:31:37,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:31:37,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:31:37,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:31:37,244 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:31:37,245 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:31:37,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label46.c [2020-10-19 22:31:37,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f28cc96c2/b98d70acf2b24f0bbbbd8a6a737f0215/FLAG2eabfc260 [2020-10-19 22:31:37,795 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:31:37,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label46.c [2020-10-19 22:31:37,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f28cc96c2/b98d70acf2b24f0bbbbd8a6a737f0215/FLAG2eabfc260 [2020-10-19 22:31:38,057 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f28cc96c2/b98d70acf2b24f0bbbbd8a6a737f0215 [2020-10-19 22:31:38,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:31:38,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:31:38,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:31:38,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:31:38,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:31:38,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b953555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38, skipping insertion in model container [2020-10-19 22:31:38,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:31:38,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:31:38,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:31:38,713 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:31:38,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:31:38,816 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:31:38,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38 WrapperNode [2020-10-19 22:31:38,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:31:38,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:31:38,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:31:38,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:31:38,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:31:38,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:31:38,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:31:38,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:31:38,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38" (1/1) ... [2020-10-19 22:31:38,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:31:38,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:31:38,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:31:38,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:31:38,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 22:31:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:31:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:31:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:31:39,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:31:40,560 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:31:40,561 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:31:40,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:40 BoogieIcfgContainer [2020-10-19 22:31:40,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:31:40,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:31:40,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:31:40,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:31:40,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:31:38" (1/3) ... [2020-10-19 22:31:40,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7234de3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:31:40, skipping insertion in model container [2020-10-19 22:31:40,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:38" (2/3) ... [2020-10-19 22:31:40,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7234de3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:31:40, skipping insertion in model container [2020-10-19 22:31:40,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:40" (3/3) ... [2020-10-19 22:31:40,573 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label46.c [2020-10-19 22:31:40,587 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:31:40,596 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:31:40,612 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:31:40,825 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:31:40,825 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:31:40,825 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:31:40,826 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:31:40,826 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:31:40,826 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:31:40,826 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:31:40,827 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:31:40,855 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-10-19 22:31:40,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-19 22:31:40,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:40,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:40,877 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:40,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:40,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1952388485, now seen corresponding path program 1 times [2020-10-19 22:31:40,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:40,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580844024] [2020-10-19 22:31:40,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:41,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:41,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580844024] [2020-10-19 22:31:41,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:41,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:41,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448385959] [2020-10-19 22:31:41,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:41,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:41,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:41,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:41,438 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-10-19 22:31:42,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:42,374 INFO L93 Difference]: Finished difference Result 631 states and 1071 transitions. [2020-10-19 22:31:42,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:42,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-10-19 22:31:42,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:42,393 INFO L225 Difference]: With dead ends: 631 [2020-10-19 22:31:42,393 INFO L226 Difference]: Without dead ends: 318 [2020-10-19 22:31:42,399 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 [2020-10-19 22:31:42,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-19 22:31:42,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2020-10-19 22:31:42,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-19 22:31:42,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 467 transitions. [2020-10-19 22:31:42,463 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 467 transitions. Word has length 112 [2020-10-19 22:31:42,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:42,465 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 467 transitions. [2020-10-19 22:31:42,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:42,465 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 467 transitions. [2020-10-19 22:31:42,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-19 22:31:42,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:42,469 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:42,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:31:42,470 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:42,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:42,470 INFO L82 PathProgramCache]: Analyzing trace with hash 260484978, now seen corresponding path program 1 times [2020-10-19 22:31:42,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:42,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138219372] [2020-10-19 22:31:42,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:42,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138219372] [2020-10-19 22:31:42,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:42,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:42,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214864178] [2020-10-19 22:31:42,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:42,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:42,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:42,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:42,583 INFO L87 Difference]: Start difference. First operand 318 states and 467 transitions. Second operand 3 states. [2020-10-19 22:31:43,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:43,176 INFO L93 Difference]: Finished difference Result 919 states and 1357 transitions. [2020-10-19 22:31:43,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:43,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-10-19 22:31:43,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:43,182 INFO L225 Difference]: With dead ends: 919 [2020-10-19 22:31:43,182 INFO L226 Difference]: Without dead ends: 603 [2020-10-19 22:31:43,184 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 [2020-10-19 22:31:43,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-10-19 22:31:43,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 601. [2020-10-19 22:31:43,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-10-19 22:31:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 775 transitions. [2020-10-19 22:31:43,219 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 775 transitions. Word has length 116 [2020-10-19 22:31:43,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:43,219 INFO L481 AbstractCegarLoop]: Abstraction has 601 states and 775 transitions. [2020-10-19 22:31:43,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:43,219 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 775 transitions. [2020-10-19 22:31:43,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-19 22:31:43,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:43,224 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:43,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:31:43,224 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:43,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:43,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1897975169, now seen corresponding path program 1 times [2020-10-19 22:31:43,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:43,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822727130] [2020-10-19 22:31:43,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:43,319 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:43,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822727130] [2020-10-19 22:31:43,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644150879] [2020-10-19 22:31:43,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 22:31:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:43,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:43,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:43,525 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:31:43,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:43,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:43,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042556670] [2020-10-19 22:31:43,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:43,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:43,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:43,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:43,528 INFO L87 Difference]: Start difference. First operand 601 states and 775 transitions. Second operand 3 states. [2020-10-19 22:31:44,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:44,183 INFO L93 Difference]: Finished difference Result 1486 states and 1970 transitions. [2020-10-19 22:31:44,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:44,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-10-19 22:31:44,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:44,191 INFO L225 Difference]: With dead ends: 1486 [2020-10-19 22:31:44,191 INFO L226 Difference]: Without dead ends: 887 [2020-10-19 22:31:44,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:44,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-10-19 22:31:44,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 885. [2020-10-19 22:31:44,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-10-19 22:31:44,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1142 transitions. [2020-10-19 22:31:44,240 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1142 transitions. Word has length 121 [2020-10-19 22:31:44,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:44,241 INFO L481 AbstractCegarLoop]: Abstraction has 885 states and 1142 transitions. [2020-10-19 22:31:44,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1142 transitions. [2020-10-19 22:31:44,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-19 22:31:44,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:44,250 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:44,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 22:31:44,466 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:44,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:44,467 INFO L82 PathProgramCache]: Analyzing trace with hash -684583336, now seen corresponding path program 2 times [2020-10-19 22:31:44,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:44,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963929701] [2020-10-19 22:31:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:44,531 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-19 22:31:44,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963929701] [2020-10-19 22:31:44,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297178276] [2020-10-19 22:31:44,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:44,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 22:31:44,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 22:31:44,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:44,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:44,665 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:31:44,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:44,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:44,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145215638] [2020-10-19 22:31:44,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:44,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:44,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:44,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:44,668 INFO L87 Difference]: Start difference. First operand 885 states and 1142 transitions. Second operand 3 states. [2020-10-19 22:31:45,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:45,258 INFO L93 Difference]: Finished difference Result 2050 states and 2650 transitions. [2020-10-19 22:31:45,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:45,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-10-19 22:31:45,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:45,269 INFO L225 Difference]: With dead ends: 2050 [2020-10-19 22:31:45,270 INFO L226 Difference]: Without dead ends: 1167 [2020-10-19 22:31:45,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:45,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2020-10-19 22:31:45,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1165. [2020-10-19 22:31:45,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1165 states. [2020-10-19 22:31:45,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1427 transitions. [2020-10-19 22:31:45,309 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1427 transitions. Word has length 126 [2020-10-19 22:31:45,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:45,310 INFO L481 AbstractCegarLoop]: Abstraction has 1165 states and 1427 transitions. [2020-10-19 22:31:45,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:45,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1427 transitions. [2020-10-19 22:31:45,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-19 22:31:45,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:45,324 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:45,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:45,541 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:45,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:45,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1247868972, now seen corresponding path program 1 times [2020-10-19 22:31:45,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:45,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582815939] [2020-10-19 22:31:45,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:45,588 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-19 22:31:45,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582815939] [2020-10-19 22:31:45,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:45,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:45,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838248953] [2020-10-19 22:31:45,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:45,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:45,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:45,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:45,591 INFO L87 Difference]: Start difference. First operand 1165 states and 1427 transitions. Second operand 3 states. [2020-10-19 22:31:46,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:46,350 INFO L93 Difference]: Finished difference Result 3308 states and 4068 transitions. [2020-10-19 22:31:46,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:46,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-10-19 22:31:46,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:46,366 INFO L225 Difference]: With dead ends: 3308 [2020-10-19 22:31:46,366 INFO L226 Difference]: Without dead ends: 2145 [2020-10-19 22:31:46,369 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 [2020-10-19 22:31:46,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2020-10-19 22:31:46,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 2145. [2020-10-19 22:31:46,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2020-10-19 22:31:46,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2542 transitions. [2020-10-19 22:31:46,435 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2542 transitions. Word has length 127 [2020-10-19 22:31:46,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:46,435 INFO L481 AbstractCegarLoop]: Abstraction has 2145 states and 2542 transitions. [2020-10-19 22:31:46,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:46,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2542 transitions. [2020-10-19 22:31:46,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-19 22:31:46,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:46,442 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:46,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:31:46,443 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:46,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:46,443 INFO L82 PathProgramCache]: Analyzing trace with hash 946075536, now seen corresponding path program 1 times [2020-10-19 22:31:46,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:46,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272283085] [2020-10-19 22:31:46,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:46,534 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:31:46,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272283085] [2020-10-19 22:31:46,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944526558] [2020-10-19 22:31:46,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:46,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:46,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:46,661 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:31:46,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:46,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 22:31:46,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344038615] [2020-10-19 22:31:46,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:46,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:46,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:46,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:46,664 INFO L87 Difference]: Start difference. First operand 2145 states and 2542 transitions. Second operand 3 states. [2020-10-19 22:31:46,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:46,995 INFO L93 Difference]: Finished difference Result 4137 states and 4918 transitions. [2020-10-19 22:31:46,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:46,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-10-19 22:31:46,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:47,006 INFO L225 Difference]: With dead ends: 4137 [2020-10-19 22:31:47,006 INFO L226 Difference]: Without dead ends: 1994 [2020-10-19 22:31:47,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:47,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2020-10-19 22:31:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1994. [2020-10-19 22:31:47,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2020-10-19 22:31:47,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2323 transitions. [2020-10-19 22:31:47,051 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2323 transitions. Word has length 132 [2020-10-19 22:31:47,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:47,051 INFO L481 AbstractCegarLoop]: Abstraction has 1994 states and 2323 transitions. [2020-10-19 22:31:47,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:47,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2323 transitions. [2020-10-19 22:31:47,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-19 22:31:47,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:47,055 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:47,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:47,271 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:47,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:47,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1274625320, now seen corresponding path program 1 times [2020-10-19 22:31:47,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:47,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749989942] [2020-10-19 22:31:47,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:47,338 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-19 22:31:47,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749989942] [2020-10-19 22:31:47,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185195446] [2020-10-19 22:31:47,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:47,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:31:47,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:47,505 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:31:47,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:47,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:47,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507641489] [2020-10-19 22:31:47,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:47,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:47,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:47,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:47,510 INFO L87 Difference]: Start difference. First operand 1994 states and 2323 transitions. Second operand 3 states. [2020-10-19 22:31:48,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:48,305 INFO L93 Difference]: Finished difference Result 2838 states and 3308 transitions. [2020-10-19 22:31:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:48,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-10-19 22:31:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:48,312 INFO L225 Difference]: With dead ends: 2838 [2020-10-19 22:31:48,312 INFO L226 Difference]: Without dead ends: 1278 [2020-10-19 22:31:48,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:48,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2020-10-19 22:31:48,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1138. [2020-10-19 22:31:48,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1138 states. [2020-10-19 22:31:48,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1267 transitions. [2020-10-19 22:31:48,354 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1267 transitions. Word has length 133 [2020-10-19 22:31:48,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:48,355 INFO L481 AbstractCegarLoop]: Abstraction has 1138 states and 1267 transitions. [2020-10-19 22:31:48,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:48,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1267 transitions. [2020-10-19 22:31:48,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-19 22:31:48,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:48,359 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:48,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:48,572 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:48,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:48,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1518962261, now seen corresponding path program 1 times [2020-10-19 22:31:48,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:48,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252942091] [2020-10-19 22:31:48,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:48,684 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:48,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252942091] [2020-10-19 22:31:48,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:48,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:48,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930786025] [2020-10-19 22:31:48,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:48,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:48,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:48,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:48,687 INFO L87 Difference]: Start difference. First operand 1138 states and 1267 transitions. Second operand 3 states. [2020-10-19 22:31:49,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:49,256 INFO L93 Difference]: Finished difference Result 2274 states and 2547 transitions. [2020-10-19 22:31:49,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:49,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-10-19 22:31:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:49,263 INFO L225 Difference]: With dead ends: 2274 [2020-10-19 22:31:49,263 INFO L226 Difference]: Without dead ends: 1278 [2020-10-19 22:31:49,265 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 [2020-10-19 22:31:49,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2020-10-19 22:31:49,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1278. [2020-10-19 22:31:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-10-19 22:31:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1413 transitions. [2020-10-19 22:31:49,292 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1413 transitions. Word has length 135 [2020-10-19 22:31:49,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:49,292 INFO L481 AbstractCegarLoop]: Abstraction has 1278 states and 1413 transitions. [2020-10-19 22:31:49,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1413 transitions. [2020-10-19 22:31:49,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-19 22:31:49,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:49,295 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:49,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:31:49,296 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:49,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:49,297 INFO L82 PathProgramCache]: Analyzing trace with hash -231376309, now seen corresponding path program 1 times [2020-10-19 22:31:49,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:49,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655672314] [2020-10-19 22:31:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:49,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655672314] [2020-10-19 22:31:49,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612450609] [2020-10-19 22:31:49,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:49,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:49,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:49,637 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-19 22:31:49,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:49,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 22:31:49,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199980355] [2020-10-19 22:31:49,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:49,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:49,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:49,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:49,641 INFO L87 Difference]: Start difference. First operand 1278 states and 1413 transitions. Second operand 3 states. [2020-10-19 22:31:50,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:50,272 INFO L93 Difference]: Finished difference Result 2553 states and 2819 transitions. [2020-10-19 22:31:50,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:50,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2020-10-19 22:31:50,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:50,281 INFO L225 Difference]: With dead ends: 2553 [2020-10-19 22:31:50,282 INFO L226 Difference]: Without dead ends: 1277 [2020-10-19 22:31:50,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:50,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2020-10-19 22:31:50,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1277. [2020-10-19 22:31:50,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1277 states. [2020-10-19 22:31:50,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1371 transitions. [2020-10-19 22:31:50,328 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1371 transitions. Word has length 139 [2020-10-19 22:31:50,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:50,329 INFO L481 AbstractCegarLoop]: Abstraction has 1277 states and 1371 transitions. [2020-10-19 22:31:50,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:50,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1371 transitions. [2020-10-19 22:31:50,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-19 22:31:50,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:50,333 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:50,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:50,546 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:50,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:50,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1006447341, now seen corresponding path program 1 times [2020-10-19 22:31:50,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:50,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731636920] [2020-10-19 22:31:50,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 68 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:50,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731636920] [2020-10-19 22:31:50,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857384116] [2020-10-19 22:31:50,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:51,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:31:51,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:51,084 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:51,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:51,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 22:31:51,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502504348] [2020-10-19 22:31:51,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:51,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:51,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:51,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:51,087 INFO L87 Difference]: Start difference. First operand 1277 states and 1371 transitions. Second operand 3 states. [2020-10-19 22:31:51,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:51,601 INFO L93 Difference]: Finished difference Result 2830 states and 3035 transitions. [2020-10-19 22:31:51,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:51,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-10-19 22:31:51,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:51,610 INFO L225 Difference]: With dead ends: 2830 [2020-10-19 22:31:51,610 INFO L226 Difference]: Without dead ends: 1554 [2020-10-19 22:31:51,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:51,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2020-10-19 22:31:51,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1553. [2020-10-19 22:31:51,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1553 states. [2020-10-19 22:31:51,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 1632 transitions. [2020-10-19 22:31:51,660 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 1632 transitions. Word has length 181 [2020-10-19 22:31:51,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:51,660 INFO L481 AbstractCegarLoop]: Abstraction has 1553 states and 1632 transitions. [2020-10-19 22:31:51,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:51,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 1632 transitions. [2020-10-19 22:31:51,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-19 22:31:51,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:51,666 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:51,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:51,881 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:51,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:51,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1873700268, now seen corresponding path program 1 times [2020-10-19 22:31:51,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:51,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318136473] [2020-10-19 22:31:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:52,068 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:52,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318136473] [2020-10-19 22:31:52,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:52,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 22:31:52,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077399479] [2020-10-19 22:31:52,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:31:52,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:52,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:31:52,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:31:52,071 INFO L87 Difference]: Start difference. First operand 1553 states and 1632 transitions. Second operand 4 states. [2020-10-19 22:31:52,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:52,765 INFO L93 Difference]: Finished difference Result 2820 states and 2972 transitions. [2020-10-19 22:31:52,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:31:52,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 263 [2020-10-19 22:31:52,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:52,767 INFO L225 Difference]: With dead ends: 2820 [2020-10-19 22:31:52,767 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:31:52,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:31:52,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:31:52,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:31:52,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:31:52,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:31:52,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 263 [2020-10-19 22:31:52,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:52,772 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:31:52,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:31:52,772 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:31:52,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:31:52,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 22:31:52,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:31:52,954 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2020-10-19 22:31:53,122 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2020-10-19 22:31:53,127 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-19 22:31:53,127 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-19 22:31:53,127 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-19 22:31:53,128 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-19 22:31:53,128 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-19 22:31:53,128 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-19 22:31:53,128 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-19 22:31:53,128 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,128 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,128 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,128 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-19 22:31:53,128 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-19 22:31:53,128 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-19 22:31:53,129 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-19 22:31:53,129 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-19 22:31:53,129 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-19 22:31:53,129 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-19 22:31:53,129 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,129 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,129 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,129 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-19 22:31:53,129 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-19 22:31:53,129 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-19 22:31:53,129 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-19 22:31:53,130 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-19 22:31:53,130 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-19 22:31:53,130 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-19 22:31:53,130 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,130 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,131 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,131 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-19 22:31:53,131 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-19 22:31:53,131 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-19 22:31:53,132 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-19 22:31:53,132 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-19 22:31:53,132 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,132 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,132 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,133 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-19 22:31:53,133 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-19 22:31:53,133 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-19 22:31:53,133 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-19 22:31:53,133 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-19 22:31:53,133 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-19 22:31:53,133 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-19 22:31:53,134 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-19 22:31:53,134 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,134 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,134 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,134 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-19 22:31:53,134 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-19 22:31:53,135 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-19 22:31:53,135 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-19 22:31:53,135 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-19 22:31:53,135 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-19 22:31:53,135 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-19 22:31:53,135 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-19 22:31:53,136 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,136 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,136 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,136 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-19 22:31:53,136 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-19 22:31:53,136 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-19 22:31:53,137 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-19 22:31:53,137 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-19 22:31:53,137 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-19 22:31:53,137 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-19 22:31:53,137 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-19 22:31:53,137 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-19 22:31:53,138 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,138 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,138 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,138 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-19 22:31:53,138 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-19 22:31:53,139 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-19 22:31:53,139 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-19 22:31:53,139 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-19 22:31:53,139 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-19 22:31:53,139 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:31:53,139 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,140 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,140 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,140 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-19 22:31:53,140 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-19 22:31:53,140 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-19 22:31:53,141 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-19 22:31:53,141 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-19 22:31:53,141 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-19 22:31:53,141 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-19 22:31:53,141 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-19 22:31:53,142 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,142 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,142 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,142 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-19 22:31:53,142 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-19 22:31:53,143 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-19 22:31:53,143 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-19 22:31:53,143 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-19 22:31:53,143 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,143 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,144 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,144 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-19 22:31:53,144 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:31:53,144 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 22:31:53,145 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-19 22:31:53,145 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-19 22:31:53,145 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-19 22:31:53,145 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-19 22:31:53,145 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-19 22:31:53,146 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-19 22:31:53,146 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-19 22:31:53,146 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-19 22:31:53,146 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-19 22:31:53,146 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-19 22:31:53,147 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,147 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,147 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-19 22:31:53,147 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-19 22:31:53,147 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-19 22:31:53,148 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-19 22:31:53,148 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-19 22:31:53,148 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-19 22:31:53,148 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-19 22:31:53,148 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-19 22:31:53,149 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-19 22:31:53,149 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 22:31:53,149 INFO L270 CegarLoopResult]: At program point L599(lines 31 600) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 0)) (.cse6 (<= ~a28~0 9)) (.cse1 (= ~a11~0 1)) (.cse3 (<= ~a28~0 10)) (.cse4 (= ~a25~0 1)) (.cse7 (= ~a19~0 1)) (.cse5 (= ~a11~0 0)) (.cse2 (<= ~a17~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse2 .cse3) (and .cse6 .cse1 .cse2) (and .cse0 .cse5 .cse6 .cse2) (and (<= 9 ~a28~0) .cse7 .cse5 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse7 .cse4 .cse5 .cse2) (and (= ~a25~0 ~a11~0) .cse7 .cse5 (<= ~a28~0 7) .cse2))) [2020-10-19 22:31:53,150 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,150 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,150 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-19 22:31:53,161 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-19 22:31:53,162 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-19 22:31:53,162 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-19 22:31:53,162 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-19 22:31:53,162 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-19 22:31:53,162 INFO L277 CegarLoopResult]: At program point L602(lines 602 619) the Hoare annotation is: true [2020-10-19 22:31:53,163 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,163 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,163 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-19 22:31:53,163 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-19 22:31:53,163 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-19 22:31:53,163 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-19 22:31:53,164 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-19 22:31:53,164 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-19 22:31:53,164 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-19 22:31:53,164 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-19 22:31:53,164 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-19 22:31:53,165 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,165 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,165 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-19 22:31:53,165 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-19 22:31:53,165 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-19 22:31:53,165 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-19 22:31:53,166 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-19 22:31:53,166 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-19 22:31:53,166 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 0)) (.cse6 (<= ~a28~0 9)) (.cse1 (= ~a11~0 1)) (.cse3 (<= ~a28~0 10)) (.cse4 (= ~a25~0 1)) (.cse7 (= ~a19~0 1)) (.cse5 (= ~a11~0 0)) (.cse2 (<= ~a17~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse2 .cse3) (and .cse6 .cse1 .cse2) (and .cse0 .cse5 .cse6 .cse2) (and (<= 9 ~a28~0) .cse7 .cse5 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse7 .cse4 .cse5 .cse2) (and (= ~a25~0 ~a11~0) .cse7 .cse5 (<= ~a28~0 7) .cse2))) [2020-10-19 22:31:53,166 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,167 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,167 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-19 22:31:53,167 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-19 22:31:53,167 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-19 22:31:53,167 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-19 22:31:53,167 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-19 22:31:53,168 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,168 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,168 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-19 22:31:53,168 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-19 22:31:53,168 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-19 22:31:53,168 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-19 22:31:53,168 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-19 22:31:53,169 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-19 22:31:53,169 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-19 22:31:53,169 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-19 22:31:53,169 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-19 22:31:53,169 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,169 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,170 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-19 22:31:53,170 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,170 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:31:53,170 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-19 22:31:53,170 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-19 22:31:53,170 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-19 22:31:53,171 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-19 22:31:53,171 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-19 22:31:53,171 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-19 22:31:53,171 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,171 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,171 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,172 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-19 22:31:53,172 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-19 22:31:53,172 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-19 22:31:53,172 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-19 22:31:53,172 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-19 22:31:53,172 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,173 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,173 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,173 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-19 22:31:53,173 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-19 22:31:53,173 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-19 22:31:53,173 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-19 22:31:53,174 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-19 22:31:53,174 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-19 22:31:53,174 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:31:53,174 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,174 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,174 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,175 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-19 22:31:53,175 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-19 22:31:53,175 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-19 22:31:53,175 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-19 22:31:53,175 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-19 22:31:53,175 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-19 22:31:53,175 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-19 22:31:53,176 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-19 22:31:53,176 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,176 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,176 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,176 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-19 22:31:53,176 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-19 22:31:53,177 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-19 22:31:53,177 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-19 22:31:53,177 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-19 22:31:53,177 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,177 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,177 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,178 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-19 22:31:53,178 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-19 22:31:53,178 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-19 22:31:53,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:31:53 BoogieIcfgContainer [2020-10-19 22:31:53,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:31:53,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:31:53,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:31:53,204 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:31:53,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:40" (3/4) ... [2020-10-19 22:31:53,209 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:31:53,231 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 22:31:53,232 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:31:53,234 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:31:53,235 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:31:53,404 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:31:53,405 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:31:53,407 INFO L168 Benchmark]: Toolchain (without parser) took 15344.82 ms. Allocated memory was 36.2 MB in the beginning and 149.9 MB in the end (delta: 113.8 MB). Free memory was 12.9 MB in the beginning and 98.5 MB in the end (delta: -85.6 MB). Peak memory consumption was 28.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:53,407 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 34.1 MB. Free memory was 19.8 MB in the beginning and 19.8 MB in the end (delta: 31.6 kB). Peak memory consumption was 31.6 kB. Max. memory is 14.3 GB. [2020-10-19 22:31:53,408 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.46 ms. Allocated memory was 36.2 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Free memory was 12.0 MB in the beginning and 24.0 MB in the end (delta: -12.0 MB). Peak memory consumption was 12.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:53,409 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.84 ms. Allocated memory is still 44.6 MB. Free memory was 24.0 MB in the beginning and 18.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:53,409 INFO L168 Benchmark]: Boogie Preprocessor took 65.88 ms. Allocated memory is still 44.6 MB. Free memory was 18.1 MB in the beginning and 13.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:53,410 INFO L168 Benchmark]: RCFGBuilder took 1578.93 ms. Allocated memory was 44.6 MB in the beginning and 56.1 MB in the end (delta: 11.5 MB). Free memory was 13.5 MB in the beginning and 12.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:53,411 INFO L168 Benchmark]: TraceAbstraction took 12638.49 ms. Allocated memory was 56.1 MB in the beginning and 149.9 MB in the end (delta: 93.8 MB). Free memory was 11.6 MB in the beginning and 118.3 MB in the end (delta: -106.7 MB). Peak memory consumption was 92.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:53,411 INFO L168 Benchmark]: Witness Printer took 201.42 ms. Allocated memory is still 149.9 MB. Free memory was 118.3 MB in the beginning and 98.5 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:53,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 34.1 MB. Free memory was 19.8 MB in the beginning and 19.8 MB in the end (delta: 31.6 kB). Peak memory consumption was 31.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 747.46 ms. Allocated memory was 36.2 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Free memory was 12.0 MB in the beginning and 24.0 MB in the end (delta: -12.0 MB). Peak memory consumption was 12.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 100.84 ms. Allocated memory is still 44.6 MB. Free memory was 24.0 MB in the beginning and 18.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 65.88 ms. Allocated memory is still 44.6 MB. Free memory was 18.1 MB in the beginning and 13.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1578.93 ms. Allocated memory was 44.6 MB in the beginning and 56.1 MB in the end (delta: 11.5 MB). Free memory was 13.5 MB in the beginning and 12.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 12638.49 ms. Allocated memory was 56.1 MB in the beginning and 149.9 MB in the end (delta: 93.8 MB). Free memory was 11.6 MB in the beginning and 118.3 MB in the end (delta: -106.7 MB). Peak memory consumption was 92.1 MB. Max. memory is 14.3 GB. * Witness Printer took 201.42 ms. Allocated memory is still 149.9 MB. Free memory was 118.3 MB in the beginning and 98.5 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 608]: Loop Invariant Derived loop invariant: (((((((((a19 <= 0 && a11 == 1) && a17 <= 8) && a28 <= 10) || ((((a19 <= 0 && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || ((a28 <= 9 && a11 == 1) && a17 <= 8)) || (((a19 <= 0 && a11 == 0) && a28 <= 9) && a17 <= 8)) || ((((9 <= a28 && a19 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || (((a25 == 1 && a11 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a25 == 1) && a11 == 0) && a17 <= 8)) || ((((a25 == a11 && a19 == 1) && a11 == 0) && a28 <= 7) && a17 <= 8) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((((((((a19 <= 0 && a11 == 1) && a17 <= 8) && a28 <= 10) || ((((a19 <= 0 && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || ((a28 <= 9 && a11 == 1) && a17 <= 8)) || (((a19 <= 0 && a11 == 0) && a28 <= 9) && a17 <= 8)) || ((((9 <= a28 && a19 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || (((a25 == 1 && a11 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a25 == 1) && a11 == 0) && a17 <= 8)) || ((((a25 == a11 && a19 == 1) && a11 == 0) && a28 <= 7) && a17 <= 8) - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.9s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1423 SDtfs, 1504 SDslu, 152 SDs, 0 SdLazy, 4019 SolverSat, 612 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 859 GetRequests, 833 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2145occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 147 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 223 HoareAnnotationTreeSize, 3 FomulaSimplifications, 314 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 80 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 2417 NumberOfCodeBlocks, 2417 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2400 ConstructedInterpolants, 0 QuantifiedInterpolants, 962982 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1751 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 712/748 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...