./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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_1.5.800.v20200727-1323.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/Problem01_label00.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 1eb8a55cc08f7e92302cf187f039c0665b8d9a8c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 19:43:26,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 19:43:26,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 19:43:26,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 19:43:26,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 19:43:26,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 19:43:26,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 19:43:26,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 19:43:26,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 19:43:26,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 19:43:26,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 19:43:26,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 19:43:26,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 19:43:26,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 19:43:26,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 19:43:26,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 19:43:26,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 19:43:26,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 19:43:26,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 19:43:26,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 19:43:26,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 19:43:26,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 19:43:26,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 19:43:26,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 19:43:26,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 19:43:26,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 19:43:26,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 19:43:26,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 19:43:26,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 19:43:26,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 19:43:26,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 19:43:26,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 19:43:26,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 19:43:26,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 19:43:26,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 19:43:26,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 19:43:26,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 19:43:26,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 19:43:26,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 19:43:26,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 19:43:26,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 19:43:26,260 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 19:43:26,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 19:43:26,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 19:43:26,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 19:43:26,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 19:43:26,325 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 19:43:26,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 19:43:26,326 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 19:43:26,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 19:43:26,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 19:43:26,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 19:43:26,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 19:43:26,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 19:43:26,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 19:43:26,327 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 19:43:26,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 19:43:26,328 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 19:43:26,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 19:43:26,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 19:43:26,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 19:43:26,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 19:43:26,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 19:43:26,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 19:43:26,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 19:43:26,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 19:43:26,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 19:43:26,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 19:43:26,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 19:43:26,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 19:43:26,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 19:43:26,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1eb8a55cc08f7e92302cf187f039c0665b8d9a8c [2020-10-25 19:43:26,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 19:43:26,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 19:43:26,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 19:43:26,854 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 19:43:26,856 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 19:43:26,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label00.c [2020-10-25 19:43:26,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40a83f32e/f271e331ae054ae7bc169c581b7f5db3/FLAGd7041cc36 [2020-10-25 19:43:27,844 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 19:43:27,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label00.c [2020-10-25 19:43:27,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40a83f32e/f271e331ae054ae7bc169c581b7f5db3/FLAGd7041cc36 [2020-10-25 19:43:28,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40a83f32e/f271e331ae054ae7bc169c581b7f5db3 [2020-10-25 19:43:28,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 19:43:28,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 19:43:28,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 19:43:28,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 19:43:28,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 19:43:28,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:43:28" (1/1) ... [2020-10-25 19:43:28,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae61117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28, skipping insertion in model container [2020-10-25 19:43:28,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:43:28" (1/1) ... [2020-10-25 19:43:28,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 19:43:28,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 19:43:28,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:43:28,608 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 19:43:28,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:43:28,750 INFO L208 MainTranslator]: Completed translation [2020-10-25 19:43:28,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28 WrapperNode [2020-10-25 19:43:28,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 19:43:28,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 19:43:28,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 19:43:28,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 19:43:28,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28" (1/1) ... [2020-10-25 19:43:28,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28" (1/1) ... [2020-10-25 19:43:28,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 19:43:28,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 19:43:28,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 19:43:28,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 19:43:28,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28" (1/1) ... [2020-10-25 19:43:28,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28" (1/1) ... [2020-10-25 19:43:28,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28" (1/1) ... [2020-10-25 19:43:28,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28" (1/1) ... [2020-10-25 19:43:28,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28" (1/1) ... [2020-10-25 19:43:28,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28" (1/1) ... [2020-10-25 19:43:29,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28" (1/1) ... [2020-10-25 19:43:29,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 19:43:29,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 19:43:29,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 19:43:29,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 19:43:29,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28" (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 [2020-10-25 19:43:29,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 19:43:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 19:43:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 19:43:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 19:43:30,586 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 19:43:30,586 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 19:43:30,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:43:30 BoogieIcfgContainer [2020-10-25 19:43:30,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 19:43:30,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 19:43:30,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 19:43:30,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 19:43:30,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 07:43:28" (1/3) ... [2020-10-25 19:43:30,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418de289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:43:30, skipping insertion in model container [2020-10-25 19:43:30,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:43:28" (2/3) ... [2020-10-25 19:43:30,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418de289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:43:30, skipping insertion in model container [2020-10-25 19:43:30,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:43:30" (3/3) ... [2020-10-25 19:43:30,600 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label00.c [2020-10-25 19:43:30,613 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 19:43:30,619 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 19:43:30,633 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 19:43:30,664 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 19:43:30,664 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 19:43:30,665 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 19:43:30,665 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 19:43:30,665 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 19:43:30,665 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 19:43:30,665 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 19:43:30,666 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 19:43:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-10-25 19:43:30,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-25 19:43:30,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:43:30,717 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] [2020-10-25 19:43:30,717 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:43:30,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:43:30,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1766677921, now seen corresponding path program 1 times [2020-10-25 19:43:30,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:43:30,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774011715] [2020-10-25 19:43:30,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:43:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:43:31,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:43:31,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774011715] [2020-10-25 19:43:31,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:43:31,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 19:43:31,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018409440] [2020-10-25 19:43:31,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 19:43:31,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:43:31,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 19:43:31,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:43:31,618 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 5 states. [2020-10-25 19:43:33,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:43:33,399 INFO L93 Difference]: Finished difference Result 663 states and 1179 transitions. [2020-10-25 19:43:33,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 19:43:33,402 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2020-10-25 19:43:33,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:43:33,440 INFO L225 Difference]: With dead ends: 663 [2020-10-25 19:43:33,444 INFO L226 Difference]: Without dead ends: 397 [2020-10-25 19:43:33,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-25 19:43:33,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-10-25 19:43:33,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2020-10-25 19:43:33,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-10-25 19:43:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 517 transitions. [2020-10-25 19:43:33,569 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 517 transitions. Word has length 108 [2020-10-25 19:43:33,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:43:33,570 INFO L481 AbstractCegarLoop]: Abstraction has 397 states and 517 transitions. [2020-10-25 19:43:33,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 19:43:33,571 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 517 transitions. [2020-10-25 19:43:33,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-25 19:43:33,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:43:33,577 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-25 19:43:33,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 19:43:33,578 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:43:33,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:43:33,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1024587764, now seen corresponding path program 1 times [2020-10-25 19:43:33,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:43:33,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51399182] [2020-10-25 19:43:33,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:43:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:43:33,978 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:43:33,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51399182] [2020-10-25 19:43:33,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:43:33,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:43:33,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311291171] [2020-10-25 19:43:33,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 19:43:33,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:43:33,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 19:43:33,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:43:33,987 INFO L87 Difference]: Start difference. First operand 397 states and 517 transitions. Second operand 4 states. [2020-10-25 19:43:35,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:43:35,226 INFO L93 Difference]: Finished difference Result 1018 states and 1433 transitions. [2020-10-25 19:43:35,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 19:43:35,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2020-10-25 19:43:35,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:43:35,237 INFO L225 Difference]: With dead ends: 1018 [2020-10-25 19:43:35,237 INFO L226 Difference]: Without dead ends: 659 [2020-10-25 19:43:35,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:43:35,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2020-10-25 19:43:35,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 528. [2020-10-25 19:43:35,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-25 19:43:35,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 609 transitions. [2020-10-25 19:43:35,287 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 609 transitions. Word has length 115 [2020-10-25 19:43:35,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:43:35,289 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 609 transitions. [2020-10-25 19:43:35,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 19:43:35,289 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 609 transitions. [2020-10-25 19:43:35,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-25 19:43:35,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:43:35,299 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:43:35,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 19:43:35,300 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:43:35,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:43:35,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1226566025, now seen corresponding path program 1 times [2020-10-25 19:43:35,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:43:35,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244553976] [2020-10-25 19:43:35,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:43:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:43:35,442 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:43:35,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244553976] [2020-10-25 19:43:35,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690617542] [2020-10-25 19:43:35,444 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 [2020-10-25 19:43:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:43:35,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:43:35,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:43:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-25 19:43:35,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:43:35,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 19:43:35,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528932388] [2020-10-25 19:43:35,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:43:35,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:43:35,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:43:35,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:43:35,701 INFO L87 Difference]: Start difference. First operand 528 states and 609 transitions. Second operand 3 states. [2020-10-25 19:43:36,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:43:36,529 INFO L93 Difference]: Finished difference Result 1578 states and 1822 transitions. [2020-10-25 19:43:36,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:43:36,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-10-25 19:43:36,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:43:36,538 INFO L225 Difference]: With dead ends: 1578 [2020-10-25 19:43:36,542 INFO L226 Difference]: Without dead ends: 790 [2020-10-25 19:43:36,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:43:36,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-10-25 19:43:36,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2020-10-25 19:43:36,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-10-25 19:43:36,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 907 transitions. [2020-10-25 19:43:36,586 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 907 transitions. Word has length 120 [2020-10-25 19:43:36,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:43:36,588 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 907 transitions. [2020-10-25 19:43:36,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:43:36,589 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 907 transitions. [2020-10-25 19:43:36,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-25 19:43:36,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:43:36,593 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:43:36,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-25 19:43:36,807 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:43:36,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:43:36,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1215252592, now seen corresponding path program 1 times [2020-10-25 19:43:36,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:43:36,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819190283] [2020-10-25 19:43:36,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:43:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:43:36,900 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:43:36,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819190283] [2020-10-25 19:43:36,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:43:36,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:43:36,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604340664] [2020-10-25 19:43:36,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 19:43:36,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:43:36,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 19:43:36,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:43:36,908 INFO L87 Difference]: Start difference. First operand 790 states and 907 transitions. Second operand 4 states. [2020-10-25 19:43:37,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:43:37,857 INFO L93 Difference]: Finished difference Result 1971 states and 2313 transitions. [2020-10-25 19:43:37,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 19:43:37,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 123 [2020-10-25 19:43:37,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:43:37,867 INFO L225 Difference]: With dead ends: 1971 [2020-10-25 19:43:37,867 INFO L226 Difference]: Without dead ends: 1314 [2020-10-25 19:43:37,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:43:37,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-10-25 19:43:37,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1183. [2020-10-25 19:43:37,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2020-10-25 19:43:37,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1367 transitions. [2020-10-25 19:43:37,899 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1367 transitions. Word has length 123 [2020-10-25 19:43:37,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:43:37,900 INFO L481 AbstractCegarLoop]: Abstraction has 1183 states and 1367 transitions. [2020-10-25 19:43:37,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 19:43:37,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1367 transitions. [2020-10-25 19:43:37,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-25 19:43:37,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:43:37,903 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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] [2020-10-25 19:43:37,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 19:43:37,904 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:43:37,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:43:37,906 INFO L82 PathProgramCache]: Analyzing trace with hash 204518740, now seen corresponding path program 1 times [2020-10-25 19:43:37,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:43:37,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133660802] [2020-10-25 19:43:37,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:43:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:43:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-25 19:43:38,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133660802] [2020-10-25 19:43:38,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:43:38,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:43:38,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451799709] [2020-10-25 19:43:38,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:43:38,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:43:38,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:43:38,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:43:38,017 INFO L87 Difference]: Start difference. First operand 1183 states and 1367 transitions. Second operand 3 states. [2020-10-25 19:43:38,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:43:38,635 INFO L93 Difference]: Finished difference Result 2757 states and 3167 transitions. [2020-10-25 19:43:38,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:43:38,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-10-25 19:43:38,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:43:38,643 INFO L225 Difference]: With dead ends: 2757 [2020-10-25 19:43:38,643 INFO L226 Difference]: Without dead ends: 1576 [2020-10-25 19:43:38,645 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 [2020-10-25 19:43:38,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2020-10-25 19:43:38,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2020-10-25 19:43:38,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2020-10-25 19:43:38,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1665 transitions. [2020-10-25 19:43:38,687 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1665 transitions. Word has length 132 [2020-10-25 19:43:38,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:43:38,687 INFO L481 AbstractCegarLoop]: Abstraction has 1445 states and 1665 transitions. [2020-10-25 19:43:38,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:43:38,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1665 transitions. [2020-10-25 19:43:38,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-25 19:43:38,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:43:38,692 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-25 19:43:38,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 19:43:38,692 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:43:38,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:43:38,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1999910269, now seen corresponding path program 1 times [2020-10-25 19:43:38,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:43:38,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689197705] [2020-10-25 19:43:38,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:43:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:43:38,765 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-25 19:43:38,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689197705] [2020-10-25 19:43:38,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263372129] [2020-10-25 19:43:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-25 19:43:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:43:38,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:43:38,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:43:38,972 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-25 19:43:38,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:43:38,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 19:43:38,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588059914] [2020-10-25 19:43:38,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:43:38,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:43:38,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:43:38,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:43:38,976 INFO L87 Difference]: Start difference. First operand 1445 states and 1665 transitions. Second operand 3 states. [2020-10-25 19:43:39,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:43:39,670 INFO L93 Difference]: Finished difference Result 3281 states and 3811 transitions. [2020-10-25 19:43:39,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:43:39,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-10-25 19:43:39,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:43:39,682 INFO L225 Difference]: With dead ends: 3281 [2020-10-25 19:43:39,682 INFO L226 Difference]: Without dead ends: 1838 [2020-10-25 19:43:39,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:43:39,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-10-25 19:43:39,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1576. [2020-10-25 19:43:39,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2020-10-25 19:43:39,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1800 transitions. [2020-10-25 19:43:39,728 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1800 transitions. Word has length 138 [2020-10-25 19:43:39,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:43:39,729 INFO L481 AbstractCegarLoop]: Abstraction has 1576 states and 1800 transitions. [2020-10-25 19:43:39,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:43:39,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1800 transitions. [2020-10-25 19:43:39,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-25 19:43:39,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:43:39,736 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:43:39,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:43:39,957 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:43:39,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:43:39,958 INFO L82 PathProgramCache]: Analyzing trace with hash -2072933007, now seen corresponding path program 1 times [2020-10-25 19:43:39,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:43:39,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891825085] [2020-10-25 19:43:39,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:43:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:43:40,072 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-25 19:43:40,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891825085] [2020-10-25 19:43:40,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61506996] [2020-10-25 19:43:40,074 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 [2020-10-25 19:43:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:43:40,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:43:40,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:43:40,299 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-25 19:43:40,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:43:40,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 19:43:40,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346217198] [2020-10-25 19:43:40,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:43:40,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:43:40,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:43:40,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:43:40,303 INFO L87 Difference]: Start difference. First operand 1576 states and 1800 transitions. Second operand 3 states. [2020-10-25 19:43:40,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:43:40,950 INFO L93 Difference]: Finished difference Result 4067 states and 4634 transitions. [2020-10-25 19:43:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:43:40,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2020-10-25 19:43:40,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:43:40,964 INFO L225 Difference]: With dead ends: 4067 [2020-10-25 19:43:40,964 INFO L226 Difference]: Without dead ends: 2493 [2020-10-25 19:43:40,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:43:40,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-10-25 19:43:41,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2362. [2020-10-25 19:43:41,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-10-25 19:43:41,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2680 transitions. [2020-10-25 19:43:41,039 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2680 transitions. Word has length 195 [2020-10-25 19:43:41,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:43:41,040 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2680 transitions. [2020-10-25 19:43:41,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:43:41,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2680 transitions. [2020-10-25 19:43:41,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-25 19:43:41,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:43:41,048 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-25 19:43:41,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:43:41,263 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:43:41,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:43:41,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1162017255, now seen corresponding path program 1 times [2020-10-25 19:43:41,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:43:41,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765948216] [2020-10-25 19:43:41,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:43:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:43:41,369 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 86 proven. 3 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2020-10-25 19:43:41,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765948216] [2020-10-25 19:43:41,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901164706] [2020-10-25 19:43:41,370 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 [2020-10-25 19:43:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:43:41,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:43:41,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:43:41,633 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-10-25 19:43:41,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:43:41,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 19:43:41,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922551867] [2020-10-25 19:43:41,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:43:41,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:43:41,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:43:41,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:43:41,636 INFO L87 Difference]: Start difference. First operand 2362 states and 2680 transitions. Second operand 3 states. [2020-10-25 19:43:42,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:43:42,182 INFO L93 Difference]: Finished difference Result 4982 states and 5657 transitions. [2020-10-25 19:43:42,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:43:42,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 227 [2020-10-25 19:43:42,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:43:42,183 INFO L225 Difference]: With dead ends: 4982 [2020-10-25 19:43:42,183 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 19:43:42,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:43:42,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 19:43:42,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 19:43:42,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 19:43:42,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 19:43:42,189 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 227 [2020-10-25 19:43:42,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:43:42,190 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 19:43:42,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:43:42,190 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 19:43:42,190 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 19:43:42,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:43:42,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 19:43:42,608 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,608 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,608 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,608 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,608 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,608 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,609 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-25 19:43:42,609 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-25 19:43:42,609 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-25 19:43:42,609 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-25 19:43:42,609 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-25 19:43:42,609 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-25 19:43:42,609 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-25 19:43:42,609 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-25 19:43:42,610 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-25 19:43:42,610 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-25 19:43:42,610 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 19:43:42,610 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-25 19:43:42,610 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-25 19:43:42,610 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,610 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,610 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,610 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,610 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,611 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,611 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-25 19:43:42,611 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-25 19:43:42,611 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-25 19:43:42,611 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-25 19:43:42,611 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-25 19:43:42,611 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-25 19:43:42,611 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-25 19:43:42,611 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-25 19:43:42,611 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-25 19:43:42,611 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-25 19:43:42,612 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,612 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,612 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,612 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,612 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,612 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,612 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-25 19:43:42,612 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-25 19:43:42,612 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-25 19:43:42,612 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-25 19:43:42,613 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-25 19:43:42,613 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-25 19:43:42,613 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-25 19:43:42,613 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-25 19:43:42,613 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-25 19:43:42,613 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-25 19:43:42,613 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-25 19:43:42,613 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-25 19:43:42,613 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-25 19:43:42,613 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-25 19:43:42,614 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-25 19:43:42,614 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,614 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,614 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,614 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,614 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,614 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-25 19:43:42,614 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-25 19:43:42,614 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-25 19:43:42,614 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-25 19:43:42,615 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-25 19:43:42,615 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-25 19:43:42,615 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-25 19:43:42,615 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-25 19:43:42,615 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-25 19:43:42,615 INFO L270 CegarLoopResult]: At program point L576(lines 32 577) the Hoare annotation is: (let ((.cse0 (= ~a17~0 1))) (or (and (<= ~a16~0 4) .cse0) (and (not (= ~a8~0 13)) (not (= ~a7~0 1)) .cse0) (and (= ~a21~0 1) (= ~a12~0 8) (<= ~a7~0 0) (= ~a20~0 1) .cse0) (<= ~a17~0 0) (<= ~a21~0 0))) [2020-10-25 19:43:42,616 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,616 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,616 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,616 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,616 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,616 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-25 19:43:42,616 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-25 19:43:42,616 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-25 19:43:42,616 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-25 19:43:42,616 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-25 19:43:42,617 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-25 19:43:42,617 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-25 19:43:42,617 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-25 19:43:42,617 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-25 19:43:42,617 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-25 19:43:42,617 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-25 19:43:42,617 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-25 19:43:42,617 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-25 19:43:42,617 INFO L277 CegarLoopResult]: At program point L579(lines 579 596) the Hoare annotation is: true [2020-10-25 19:43:42,617 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,618 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,618 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,618 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,618 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,618 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-25 19:43:42,618 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-25 19:43:42,618 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-25 19:43:42,618 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-25 19:43:42,618 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-25 19:43:42,618 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-25 19:43:42,619 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-25 19:43:42,619 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-25 19:43:42,619 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 19:43:42,619 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-25 19:43:42,619 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,619 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,619 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,619 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,619 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-25 19:43:42,619 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,620 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-25 19:43:42,620 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-25 19:43:42,620 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-25 19:43:42,620 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-25 19:43:42,620 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-25 19:43:42,620 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-25 19:43:42,620 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-25 19:43:42,620 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-25 19:43:42,620 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-25 19:43:42,620 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-25 19:43:42,621 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-25 19:43:42,621 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-25 19:43:42,621 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-25 19:43:42,621 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,621 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a17~0 1))) (or (and (<= ~a16~0 4) .cse0) (and (not (= ~a8~0 13)) (not (= ~a7~0 1)) .cse0) (and (= ~a21~0 1) (= ~a12~0 8) (<= ~a7~0 0) (= ~a20~0 1) .cse0) (<= ~a17~0 0) (<= ~a21~0 0))) [2020-10-25 19:43:42,621 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,621 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,621 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,621 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,622 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-25 19:43:42,622 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-25 19:43:42,622 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-25 19:43:42,622 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-25 19:43:42,622 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-25 19:43:42,622 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-25 19:43:42,622 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-25 19:43:42,622 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 19:43:42,622 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-25 19:43:42,622 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,623 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,623 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,623 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,623 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,623 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-25 19:43:42,623 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-25 19:43:42,623 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-25 19:43:42,623 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-25 19:43:42,623 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-25 19:43:42,623 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-25 19:43:42,623 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-25 19:43:42,624 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-25 19:43:42,624 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-25 19:43:42,624 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-25 19:43:42,624 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 19:43:42,624 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-25 19:43:42,624 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-25 19:43:42,624 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,624 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,624 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,624 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,624 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-25 19:43:42,625 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,625 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,625 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-25 19:43:42,625 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-25 19:43:42,625 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-25 19:43:42,625 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-25 19:43:42,625 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-25 19:43:42,625 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-25 19:43:42,625 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-25 19:43:42,625 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-25 19:43:42,625 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-25 19:43:42,626 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-25 19:43:42,626 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-25 19:43:42,626 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-25 19:43:42,626 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 19:43:42,626 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 19:43:42,626 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,626 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,626 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,626 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,626 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,627 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-25 19:43:42,627 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:43:42,627 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-25 19:43:42,627 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-25 19:43:42,627 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-25 19:43:42,627 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-25 19:43:42,627 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-25 19:43:42,627 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-25 19:43:42,627 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-25 19:43:42,627 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-25 19:43:42,627 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-25 19:43:42,628 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-25 19:43:42,628 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-25 19:43:42,628 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-25 19:43:42,628 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-25 19:43:42,628 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-25 19:43:42,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 07:43:42 BoogieIcfgContainer [2020-10-25 19:43:42,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 19:43:42,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 19:43:42,652 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 19:43:42,652 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 19:43:42,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:43:30" (3/4) ... [2020-10-25 19:43:42,656 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 19:43:42,679 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 19:43:42,680 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 19:43:42,682 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:43:42,683 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:43:42,897 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 19:43:42,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 19:43:42,899 INFO L168 Benchmark]: Toolchain (without parser) took 14883.26 ms. Allocated memory was 37.7 MB in the beginning and 232.8 MB in the end (delta: 195.0 MB). Free memory was 22.2 MB in the beginning and 110.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 105.5 MB. Max. memory is 16.1 GB. [2020-10-25 19:43:42,900 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 37.7 MB. Free memory was 23.4 MB in the beginning and 23.3 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 19:43:42,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.14 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.5 MB in the beginning and 23.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2020-10-25 19:43:42,901 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.76 ms. Allocated memory is still 46.1 MB. Free memory was 23.7 MB in the beginning and 18.1 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-25 19:43:42,901 INFO L168 Benchmark]: Boogie Preprocessor took 155.24 ms. Allocated memory is still 46.1 MB. Free memory was 18.1 MB in the beginning and 24.0 MB in the end (delta: -5.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 19:43:42,901 INFO L168 Benchmark]: RCFGBuilder took 1562.47 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 24.0 MB in the beginning and 37.7 MB in the end (delta: -13.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2020-10-25 19:43:42,902 INFO L168 Benchmark]: TraceAbstraction took 12060.51 ms. Allocated memory was 69.2 MB in the beginning and 232.8 MB in the end (delta: 163.6 MB). Free memory was 37.2 MB in the beginning and 126.5 MB in the end (delta: -89.2 MB). Peak memory consumption was 74.1 MB. Max. memory is 16.1 GB. [2020-10-25 19:43:42,902 INFO L168 Benchmark]: Witness Printer took 245.36 ms. Allocated memory is still 232.8 MB. Free memory was 126.5 MB in the beginning and 110.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-10-25 19:43:42,905 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 37.7 MB. Free memory was 23.4 MB in the beginning and 23.3 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 729.14 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.5 MB in the beginning and 23.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 117.76 ms. Allocated memory is still 46.1 MB. Free memory was 23.7 MB in the beginning and 18.1 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 155.24 ms. Allocated memory is still 46.1 MB. Free memory was 18.1 MB in the beginning and 24.0 MB in the end (delta: -5.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1562.47 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 24.0 MB in the beginning and 37.7 MB in the end (delta: -13.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12060.51 ms. Allocated memory was 69.2 MB in the beginning and 232.8 MB in the end (delta: 163.6 MB). Free memory was 37.2 MB in the beginning and 126.5 MB in the end (delta: -89.2 MB). Peak memory consumption was 74.1 MB. Max. memory is 16.1 GB. * Witness Printer took 245.36 ms. Allocated memory is still 232.8 MB. Free memory was 126.5 MB in the beginning and 110.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 579]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((a16 <= 4 && a17 == 1) || ((!(a8 == 13) && !(a7 == 1)) && a17 == 1)) || ((((a21 == 1 && a12 == 8) && a7 <= 0) && a20 == 1) && a17 == 1)) || a17 <= 0) || a21 <= 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((a16 <= 4 && a17 == 1) || ((!(a8 == 13) && !(a7 == 1)) && a17 == 1)) || ((((a21 == 1 && a12 == 8) && a7 <= 0) && a20 == 1) && a17 == 1)) || a17 <= 0) || a21 <= 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.7s, OverallIterations: 8, TraceHistogramMax: 7, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 710 SDtfs, 1206 SDslu, 73 SDs, 0 SdLazy, 3627 SolverSat, 630 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 703 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2362occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 786 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 52 NumberOfFragments, 85 HoareAnnotationTreeSize, 3 FomulaSimplifications, 770 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 180 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1838 NumberOfCodeBlocks, 1838 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1826 ConstructedInterpolants, 0 QuantifiedInterpolants, 926479 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1461 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 1003/1015 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...