./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label37.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem10_label37.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 51f11b036d652ab511b54c8f1c2cec9469be1589 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 23:10:22,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:10:22,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:10:22,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:10:22,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:10:22,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:10:22,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:10:22,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:10:22,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:10:22,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:10:22,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:10:22,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:10:22,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:10:22,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:10:22,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:10:22,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:10:22,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:10:22,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:10:22,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:10:22,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:10:22,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:10:22,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:10:22,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:10:22,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:10:22,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:10:22,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:10:22,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:10:22,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:10:22,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:10:22,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:10:22,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:10:22,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:10:22,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:10:22,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:10:22,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:10:22,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:10:22,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:10:22,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:10:22,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:10:22,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:10:22,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:10:22,950 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:10:22,994 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:10:22,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:10:22,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:10:22,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:10:22,997 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:10:22,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:10:22,998 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:10:22,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:10:22,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:10:22,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:10:22,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:10:23,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:10:23,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:10:23,001 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:10:23,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:10:23,001 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:10:23,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:10:23,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:10:23,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:10:23,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:10:23,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:10:23,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:10:23,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:10:23,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:10:23,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:10:23,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:10:23,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:10:23,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:10:23,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:10:23,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51f11b036d652ab511b54c8f1c2cec9469be1589 [2020-10-19 23:10:23,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:10:23,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:10:23,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:10:23,264 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:10:23,265 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:10:23,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label37.c [2020-10-19 23:10:23,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d89a191/c17ef432272748aebe97923d4d33390a/FLAG53abb3d2d [2020-10-19 23:10:24,016 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:10:24,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label37.c [2020-10-19 23:10:24,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d89a191/c17ef432272748aebe97923d4d33390a/FLAG53abb3d2d [2020-10-19 23:10:24,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d89a191/c17ef432272748aebe97923d4d33390a [2020-10-19 23:10:24,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:10:24,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:10:24,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:10:24,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:10:24,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:10:24,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:10:24" (1/1) ... [2020-10-19 23:10:24,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497807e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24, skipping insertion in model container [2020-10-19 23:10:24,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:10:24" (1/1) ... [2020-10-19 23:10:24,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:10:24,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:10:24,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:10:24,794 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:10:24,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:10:24,971 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:10:24,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24 WrapperNode [2020-10-19 23:10:24,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:10:24,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:10:24,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:10:24,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:10:24,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24" (1/1) ... [2020-10-19 23:10:25,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24" (1/1) ... [2020-10-19 23:10:25,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:10:25,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:10:25,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:10:25,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:10:25,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24" (1/1) ... [2020-10-19 23:10:25,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24" (1/1) ... [2020-10-19 23:10:25,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24" (1/1) ... [2020-10-19 23:10:25,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24" (1/1) ... [2020-10-19 23:10:25,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24" (1/1) ... [2020-10-19 23:10:25,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24" (1/1) ... [2020-10-19 23:10:25,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24" (1/1) ... [2020-10-19 23:10:25,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:10:25,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:10:25,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:10:25,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:10:25,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:10:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:10:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:10:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:10:25,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:10:26,673 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:10:26,673 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:10:26,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:26 BoogieIcfgContainer [2020-10-19 23:10:26,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:10:26,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:10:26,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:10:26,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:10:26,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:10:24" (1/3) ... [2020-10-19 23:10:26,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c31ebd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:10:26, skipping insertion in model container [2020-10-19 23:10:26,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:24" (2/3) ... [2020-10-19 23:10:26,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c31ebd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:10:26, skipping insertion in model container [2020-10-19 23:10:26,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:26" (3/3) ... [2020-10-19 23:10:26,685 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label37.c [2020-10-19 23:10:26,729 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:10:26,737 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:10:26,753 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:10:26,795 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:10:26,795 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:10:26,795 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:10:26,796 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:10:26,796 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:10:26,796 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:10:26,797 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:10:26,797 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:10:26,829 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-19 23:10:26,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-19 23:10:26,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:26,843 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] [2020-10-19 23:10:26,843 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:26,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:26,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1425694346, now seen corresponding path program 1 times [2020-10-19 23:10:26,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:26,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182234302] [2020-10-19 23:10:26,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:27,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182234302] [2020-10-19 23:10:27,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:27,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:27,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282448541] [2020-10-19 23:10:27,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:27,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:27,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:27,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:27,214 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-10-19 23:10:28,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:28,330 INFO L93 Difference]: Finished difference Result 568 states and 982 transitions. [2020-10-19 23:10:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:28,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-10-19 23:10:28,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:28,349 INFO L225 Difference]: With dead ends: 568 [2020-10-19 23:10:28,350 INFO L226 Difference]: Without dead ends: 282 [2020-10-19 23:10:28,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:28,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-19 23:10:28,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-19 23:10:28,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-19 23:10:28,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 412 transitions. [2020-10-19 23:10:28,429 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 412 transitions. Word has length 54 [2020-10-19 23:10:28,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:28,430 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 412 transitions. [2020-10-19 23:10:28,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:28,431 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 412 transitions. [2020-10-19 23:10:28,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-19 23:10:28,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:28,436 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:28,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:10:28,437 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:28,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:28,437 INFO L82 PathProgramCache]: Analyzing trace with hash -458265236, now seen corresponding path program 1 times [2020-10-19 23:10:28,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:28,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106408151] [2020-10-19 23:10:28,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:28,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106408151] [2020-10-19 23:10:28,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:28,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:28,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171871398] [2020-10-19 23:10:28,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:28,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:28,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:28,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:28,625 INFO L87 Difference]: Start difference. First operand 282 states and 412 transitions. Second operand 3 states. [2020-10-19 23:10:29,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:29,339 INFO L93 Difference]: Finished difference Result 840 states and 1231 transitions. [2020-10-19 23:10:29,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:29,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-10-19 23:10:29,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:29,347 INFO L225 Difference]: With dead ends: 840 [2020-10-19 23:10:29,347 INFO L226 Difference]: Without dead ends: 560 [2020-10-19 23:10:29,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:29,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-19 23:10:29,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-10-19 23:10:29,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-19 23:10:29,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 730 transitions. [2020-10-19 23:10:29,386 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 730 transitions. Word has length 124 [2020-10-19 23:10:29,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:29,387 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 730 transitions. [2020-10-19 23:10:29,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:29,387 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 730 transitions. [2020-10-19 23:10:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-19 23:10:29,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:29,394 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:29,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:10:29,395 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:29,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:29,395 INFO L82 PathProgramCache]: Analyzing trace with hash 208248326, now seen corresponding path program 1 times [2020-10-19 23:10:29,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:29,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797473811] [2020-10-19 23:10:29,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:29,670 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:29,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797473811] [2020-10-19 23:10:29,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423471910] [2020-10-19 23:10:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:10:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:29,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:10:29,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:10:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:29,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:10:29,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 23:10:29,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431290409] [2020-10-19 23:10:29,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:29,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:29,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:29,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:10:29,858 INFO L87 Difference]: Start difference. First operand 560 states and 730 transitions. Second operand 3 states. [2020-10-19 23:10:30,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:30,621 INFO L93 Difference]: Finished difference Result 979 states and 1299 transitions. [2020-10-19 23:10:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:30,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-10-19 23:10:30,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:30,629 INFO L225 Difference]: With dead ends: 979 [2020-10-19 23:10:30,629 INFO L226 Difference]: Without dead ends: 977 [2020-10-19 23:10:30,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:10:30,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-19 23:10:30,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 699. [2020-10-19 23:10:30,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-19 23:10:30,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 944 transitions. [2020-10-19 23:10:30,674 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 944 transitions. Word has length 129 [2020-10-19 23:10:30,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:30,675 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 944 transitions. [2020-10-19 23:10:30,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:30,675 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 944 transitions. [2020-10-19 23:10:30,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-19 23:10:30,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:30,686 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:30,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 23:10:30,891 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:30,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:30,892 INFO L82 PathProgramCache]: Analyzing trace with hash -798579724, now seen corresponding path program 1 times [2020-10-19 23:10:30,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:30,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89861957] [2020-10-19 23:10:30,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:31,125 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:31,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89861957] [2020-10-19 23:10:31,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:31,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:31,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948982596] [2020-10-19 23:10:31,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:31,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:31,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:31,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:31,131 INFO L87 Difference]: Start difference. First operand 699 states and 944 transitions. Second operand 3 states. [2020-10-19 23:10:31,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:31,824 INFO L93 Difference]: Finished difference Result 1952 states and 2612 transitions. [2020-10-19 23:10:31,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:31,824 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2020-10-19 23:10:31,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:31,832 INFO L225 Difference]: With dead ends: 1952 [2020-10-19 23:10:31,832 INFO L226 Difference]: Without dead ends: 1255 [2020-10-19 23:10:31,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:31,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-19 23:10:31,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1116. [2020-10-19 23:10:31,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-19 23:10:31,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1436 transitions. [2020-10-19 23:10:31,875 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1436 transitions. Word has length 172 [2020-10-19 23:10:31,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:31,878 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1436 transitions. [2020-10-19 23:10:31,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:31,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1436 transitions. [2020-10-19 23:10:31,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-19 23:10:31,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:31,900 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:31,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:10:31,901 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:31,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:31,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1442708908, now seen corresponding path program 1 times [2020-10-19 23:10:31,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:31,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724938446] [2020-10-19 23:10:31,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:32,344 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:32,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724938446] [2020-10-19 23:10:32,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:32,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 23:10:32,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779353130] [2020-10-19 23:10:32,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 23:10:32,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:32,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 23:10:32,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:10:32,347 INFO L87 Difference]: Start difference. First operand 1116 states and 1436 transitions. Second operand 7 states. [2020-10-19 23:10:33,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:33,337 INFO L93 Difference]: Finished difference Result 2285 states and 2925 transitions. [2020-10-19 23:10:33,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 23:10:33,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 207 [2020-10-19 23:10:33,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:33,347 INFO L225 Difference]: With dead ends: 2285 [2020-10-19 23:10:33,348 INFO L226 Difference]: Without dead ends: 1116 [2020-10-19 23:10:33,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:10:33,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-10-19 23:10:33,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2020-10-19 23:10:33,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-19 23:10:33,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1428 transitions. [2020-10-19 23:10:33,399 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1428 transitions. Word has length 207 [2020-10-19 23:10:33,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:33,399 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1428 transitions. [2020-10-19 23:10:33,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 23:10:33,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1428 transitions. [2020-10-19 23:10:33,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-19 23:10:33,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:33,404 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:33,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 23:10:33,405 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:33,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:33,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1177719972, now seen corresponding path program 1 times [2020-10-19 23:10:33,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:33,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193895313] [2020-10-19 23:10:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:33,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193895313] [2020-10-19 23:10:33,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:33,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:33,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363188521] [2020-10-19 23:10:33,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:33,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:33,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:33,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:33,676 INFO L87 Difference]: Start difference. First operand 1116 states and 1428 transitions. Second operand 3 states. [2020-10-19 23:10:34,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:34,410 INFO L93 Difference]: Finished difference Result 2647 states and 3409 transitions. [2020-10-19 23:10:34,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:34,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-10-19 23:10:34,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:34,421 INFO L225 Difference]: With dead ends: 2647 [2020-10-19 23:10:34,421 INFO L226 Difference]: Without dead ends: 1533 [2020-10-19 23:10:34,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:34,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-10-19 23:10:34,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1116. [2020-10-19 23:10:34,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-19 23:10:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1419 transitions. [2020-10-19 23:10:34,455 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1419 transitions. Word has length 214 [2020-10-19 23:10:34,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:34,455 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1419 transitions. [2020-10-19 23:10:34,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:34,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1419 transitions. [2020-10-19 23:10:34,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-19 23:10:34,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:34,461 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:10:34,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 23:10:34,461 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:34,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:34,462 INFO L82 PathProgramCache]: Analyzing trace with hash -485016285, now seen corresponding path program 1 times [2020-10-19 23:10:34,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:34,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872276368] [2020-10-19 23:10:34,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:34,671 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-19 23:10:34,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872276368] [2020-10-19 23:10:34,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:34,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:34,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145037041] [2020-10-19 23:10:34,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:34,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:34,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:34,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:34,676 INFO L87 Difference]: Start difference. First operand 1116 states and 1419 transitions. Second operand 3 states. [2020-10-19 23:10:35,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:35,254 INFO L93 Difference]: Finished difference Result 2369 states and 2984 transitions. [2020-10-19 23:10:35,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:35,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-10-19 23:10:35,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:35,263 INFO L225 Difference]: With dead ends: 2369 [2020-10-19 23:10:35,263 INFO L226 Difference]: Without dead ends: 1255 [2020-10-19 23:10:35,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:35,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-19 23:10:35,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2020-10-19 23:10:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-19 23:10:35,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1562 transitions. [2020-10-19 23:10:35,298 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1562 transitions. Word has length 224 [2020-10-19 23:10:35,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:35,299 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1562 transitions. [2020-10-19 23:10:35,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:35,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1562 transitions. [2020-10-19 23:10:35,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-19 23:10:35,304 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:35,304 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:35,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:10:35,305 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:35,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:35,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1643738246, now seen corresponding path program 1 times [2020-10-19 23:10:35,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:35,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972702054] [2020-10-19 23:10:35,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:35,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972702054] [2020-10-19 23:10:35,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:35,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:35,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196883116] [2020-10-19 23:10:35,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:35,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:35,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:35,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:35,514 INFO L87 Difference]: Start difference. First operand 1255 states and 1562 transitions. Second operand 3 states. [2020-10-19 23:10:36,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:36,208 INFO L93 Difference]: Finished difference Result 2786 states and 3534 transitions. [2020-10-19 23:10:36,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:36,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2020-10-19 23:10:36,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:36,217 INFO L225 Difference]: With dead ends: 2786 [2020-10-19 23:10:36,218 INFO L226 Difference]: Without dead ends: 1672 [2020-10-19 23:10:36,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:36,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2020-10-19 23:10:36,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1533. [2020-10-19 23:10:36,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1533 states. [2020-10-19 23:10:36,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1792 transitions. [2020-10-19 23:10:36,258 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1792 transitions. Word has length 243 [2020-10-19 23:10:36,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:36,259 INFO L481 AbstractCegarLoop]: Abstraction has 1533 states and 1792 transitions. [2020-10-19 23:10:36,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:36,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1792 transitions. [2020-10-19 23:10:36,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-10-19 23:10:36,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:36,269 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:36,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:10:36,269 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:36,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:36,270 INFO L82 PathProgramCache]: Analyzing trace with hash -344835933, now seen corresponding path program 1 times [2020-10-19 23:10:36,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:36,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505561273] [2020-10-19 23:10:36,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:36,542 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-19 23:10:36,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505561273] [2020-10-19 23:10:36,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:36,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:36,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058471296] [2020-10-19 23:10:36,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:36,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:36,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:36,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:36,546 INFO L87 Difference]: Start difference. First operand 1533 states and 1792 transitions. Second operand 3 states. [2020-10-19 23:10:37,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:37,184 INFO L93 Difference]: Finished difference Result 3201 states and 3804 transitions. [2020-10-19 23:10:37,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:37,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 353 [2020-10-19 23:10:37,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:37,185 INFO L225 Difference]: With dead ends: 3201 [2020-10-19 23:10:37,186 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:10:37,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:37,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:10:37,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:10:37,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:10:37,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:10:37,190 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 353 [2020-10-19 23:10:37,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:37,191 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:10:37,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:37,198 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:10:37,198 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:10:37,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 23:10:37,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:10:37,378 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2020-10-19 23:10:37,493 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2020-10-19 23:10:37,497 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-19 23:10:37,497 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-19 23:10:37,497 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-19 23:10:37,497 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:10:37,498 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:10:37,498 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:10:37,498 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:10:37,498 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:10:37,498 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:10:37,498 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-19 23:10:37,498 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-19 23:10:37,498 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-19 23:10:37,499 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:10:37,499 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-19 23:10:37,500 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,500 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,500 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,500 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,501 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,501 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,501 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-19 23:10:37,501 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-19 23:10:37,501 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:10:37,502 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:10:37,502 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:10:37,502 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:10:37,502 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:10:37,502 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:10:37,503 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-19 23:10:37,503 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-19 23:10:37,503 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-19 23:10:37,503 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,503 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,504 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,504 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,504 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,504 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-19 23:10:37,504 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-19 23:10:37,504 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-19 23:10:37,505 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-19 23:10:37,505 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:10:37,505 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:10:37,505 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:10:37,505 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:10:37,506 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:10:37,506 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-19 23:10:37,506 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-19 23:10:37,506 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-19 23:10:37,506 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-19 23:10:37,506 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-19 23:10:37,507 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,507 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,507 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,507 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,507 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,508 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-19 23:10:37,508 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:10:37,508 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:10:37,508 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:10:37,508 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:10:37,509 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:10:37,509 INFO L270 CegarLoopResult]: At program point L575(lines 22 576) the Hoare annotation is: (let ((.cse2 (<= ~a19~0 9)) (.cse3 (<= 8 ~a19~0)) (.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 2) .cse1 .cse2) (and (= ~a10~0 3) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= ~a1~0 23)) (and (= ~a10~0 1) .cse0 .cse1) (and .cse3 .cse0 .cse1 .cse2) (and .cse3 .cse0 (= ~a10~0 0) .cse1))) [2020-10-19 23:10:37,509 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-19 23:10:37,510 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-19 23:10:37,510 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-19 23:10:37,510 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-19 23:10:37,510 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,510 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,511 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,511 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,511 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,511 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-19 23:10:37,511 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-19 23:10:37,512 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-19 23:10:37,512 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:10:37,512 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:10:37,512 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:10:37,512 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:10:37,513 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:10:37,513 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-19 23:10:37,513 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-19 23:10:37,513 INFO L277 CegarLoopResult]: At program point L578(lines 578 594) the Hoare annotation is: true [2020-10-19 23:10:37,513 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-19 23:10:37,514 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-19 23:10:37,514 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-19 23:10:37,514 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,514 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,514 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,515 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,515 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,515 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:10:37,515 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:10:37,515 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:10:37,515 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:10:37,516 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:10:37,516 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-19 23:10:37,516 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-19 23:10:37,516 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-19 23:10:37,516 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:10:37,517 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-19 23:10:37,517 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,517 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,517 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,517 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,517 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,518 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-19 23:10:37,518 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-19 23:10:37,518 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-19 23:10:37,518 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-19 23:10:37,518 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:10:37,518 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:10:37,519 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:10:37,519 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:10:37,519 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:10:37,519 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-19 23:10:37,519 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-19 23:10:37,520 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-19 23:10:37,520 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse2 (<= ~a19~0 9)) (.cse3 (<= 8 ~a19~0)) (.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 2) .cse1 .cse2) (and (= ~a10~0 3) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= ~a1~0 23)) (and (= ~a10~0 1) .cse0 .cse1) (and .cse3 .cse0 .cse1 .cse2) (and .cse3 .cse0 (= ~a10~0 0) .cse1))) [2020-10-19 23:10:37,520 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-19 23:10:37,520 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,521 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,521 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,521 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,521 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:10:37,521 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,521 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,522 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-19 23:10:37,522 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-19 23:10:37,522 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-19 23:10:37,522 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:10:37,522 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:10:37,523 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:10:37,523 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:10:37,523 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:10:37,523 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:10:37,523 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-19 23:10:37,523 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-19 23:10:37,524 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:10:37,524 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-19 23:10:37,524 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-19 23:10:37,524 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,524 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,525 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,525 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,525 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,525 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,525 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-19 23:10:37,526 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-19 23:10:37,526 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-19 23:10:37,526 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:10:37,526 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:10:37,526 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:10:37,527 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:10:37,527 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:10:37,527 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:10:37,527 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-19 23:10:37,527 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-19 23:10:37,527 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-19 23:10:37,528 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:10:37,528 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-19 23:10:37,528 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-19 23:10:37,528 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-19 23:10:37,528 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,528 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,529 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,529 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,529 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,529 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,529 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-19 23:10:37,529 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:10:37,530 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:10:37,530 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:10:37,530 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:10:37,530 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:10:37,530 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:10:37,531 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-19 23:10:37,531 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-19 23:10:37,531 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-19 23:10:37,531 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-19 23:10:37,531 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-19 23:10:37,531 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-19 23:10:37,532 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,532 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,532 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,532 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,532 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,532 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:10:37,533 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,533 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:10:37,533 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-19 23:10:37,533 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-19 23:10:37,533 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-19 23:10:37,534 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:10:37,534 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:10:37,534 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:10:37,534 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:10:37,534 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:10:37,534 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:10:37,535 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-19 23:10:37,535 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-19 23:10:37,535 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-19 23:10:37,535 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,535 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,535 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,536 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,536 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,536 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:37,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:10:37 BoogieIcfgContainer [2020-10-19 23:10:37,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:10:37,561 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:10:37,561 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:10:37,561 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:10:37,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:26" (3/4) ... [2020-10-19 23:10:37,566 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:10:37,588 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:10:37,590 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:10:37,591 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:10:37,593 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:10:37,782 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:10:37,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:10:37,784 INFO L168 Benchmark]: Toolchain (without parser) took 13513.55 ms. Allocated memory was 40.9 MB in the beginning and 149.4 MB in the end (delta: 108.5 MB). Free memory was 17.7 MB in the beginning and 47.4 MB in the end (delta: -29.7 MB). Peak memory consumption was 78.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:37,785 INFO L168 Benchmark]: CDTParser took 1.05 ms. Allocated memory is still 31.5 MB. Free memory was 7.5 MB in the beginning and 7.5 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. [2020-10-19 23:10:37,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.76 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 16.8 MB in the beginning and 15.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:37,786 INFO L168 Benchmark]: Boogie Procedure Inliner took 141.27 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 15.3 MB in the beginning and 22.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:37,787 INFO L168 Benchmark]: Boogie Preprocessor took 84.23 ms. Allocated memory is still 43.5 MB. Free memory was 22.6 MB in the beginning and 17.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:37,787 INFO L168 Benchmark]: RCFGBuilder took 1476.27 ms. Allocated memory was 43.5 MB in the beginning and 55.6 MB in the end (delta: 12.1 MB). Free memory was 17.0 MB in the beginning and 10.4 MB in the end (delta: 6.6 MB). Peak memory consumption was 18.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:37,788 INFO L168 Benchmark]: TraceAbstraction took 10883.38 ms. Allocated memory was 55.6 MB in the beginning and 149.4 MB in the end (delta: 93.8 MB). Free memory was 9.9 MB in the beginning and 67.3 MB in the end (delta: -57.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:37,789 INFO L168 Benchmark]: Witness Printer took 221.52 ms. Allocated memory is still 149.4 MB. Free memory was 67.3 MB in the beginning and 47.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:37,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05 ms. Allocated memory is still 31.5 MB. Free memory was 7.5 MB in the beginning and 7.5 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 695.76 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 16.8 MB in the beginning and 15.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 141.27 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 15.3 MB in the beginning and 22.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 84.23 ms. Allocated memory is still 43.5 MB. Free memory was 22.6 MB in the beginning and 17.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1476.27 ms. Allocated memory was 43.5 MB in the beginning and 55.6 MB in the end (delta: 12.1 MB). Free memory was 17.0 MB in the beginning and 10.4 MB in the end (delta: 6.6 MB). Peak memory consumption was 18.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 10883.38 ms. Allocated memory was 55.6 MB in the beginning and 149.4 MB in the end (delta: 93.8 MB). Free memory was 9.9 MB in the beginning and 67.3 MB in the end (delta: -57.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 14.3 GB. * Witness Printer took 221.52 ms. Allocated memory is still 149.4 MB. Free memory was 67.3 MB in the beginning and 47.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a12 == 0) && a19 <= 9) && a1 <= 23)) || ((a10 == 1 && 14 == a4) && a12 == 0)) || (((8 <= a19 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((8 <= a19 && 14 == a4) && a10 == 0) && a12 == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a12 == 0) && a19 <= 9) && a1 <= 23)) || ((a10 == 1 && 14 == a4) && a12 == 0)) || (((8 <= a19 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((8 <= a19 && 14 == a4) && a10 == 0) && a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.4s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 849 SDtfs, 834 SDslu, 52 SDs, 0 SdLazy, 3642 SolverSat, 535 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1533occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 973 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 33 NumberOfFragments, 153 HoareAnnotationTreeSize, 3 FomulaSimplifications, 450 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 140 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1849 NumberOfCodeBlocks, 1849 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1839 ConstructedInterpolants, 0 QuantifiedInterpolants, 1110937 SizeOfPredicates, 1 NumberOfNonLiveVariables, 224 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 1303/1319 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...