./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label50.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/Problem11_label50.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 fe5b7177384e57dbaf0d2e34342d37ff5ad26baf ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:13:59,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:13:59,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:13:59,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:13:59,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:13:59,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:13:59,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:13:59,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:13:59,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:13:59,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:13:59,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:13:59,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:13:59,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:13:59,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:13:59,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:13:59,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:13:59,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:13:59,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:13:59,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:13:59,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:13:59,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:13:59,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:13:59,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:13:59,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:13:59,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:13:59,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:13:59,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:13:59,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:13:59,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:13:59,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:13:59,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:13:59,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:13:59,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:13:59,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:13:59,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:13:59,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:13:59,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:13:59,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:13:59,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:13:59,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:13:59,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:13:59,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:13:59,924 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:13:59,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:13:59,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:13:59,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:13:59,927 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:13:59,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:13:59,927 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:13:59,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:13:59,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:13:59,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:13:59,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:13:59,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:13:59,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:13:59,930 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:13:59,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:13:59,931 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:13:59,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:13:59,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:13:59,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:13:59,932 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:13:59,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:13:59,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:13:59,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:13:59,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:13:59,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:13:59,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:13:59,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:13:59,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:13:59,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:13:59,935 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 -> fe5b7177384e57dbaf0d2e34342d37ff5ad26baf [2020-10-19 23:14:00,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:14:00,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:14:00,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:14:00,161 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:14:00,162 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:14:00,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label50.c [2020-10-19 23:14:00,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca9b1780e/5105f641fec446cf866576c27051e2fe/FLAG9e0fe18a6 [2020-10-19 23:14:00,923 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:14:00,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label50.c [2020-10-19 23:14:00,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca9b1780e/5105f641fec446cf866576c27051e2fe/FLAG9e0fe18a6 [2020-10-19 23:14:01,156 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca9b1780e/5105f641fec446cf866576c27051e2fe [2020-10-19 23:14:01,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:14:01,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:14:01,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:14:01,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:14:01,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:14:01,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:14:01" (1/1) ... [2020-10-19 23:14:01,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d21fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:01, skipping insertion in model container [2020-10-19 23:14:01,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:14:01" (1/1) ... [2020-10-19 23:14:01,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:14:01,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:14:01,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:14:01,836 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:14:02,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:14:02,062 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:14:02,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:02 WrapperNode [2020-10-19 23:14:02,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:14:02,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:14:02,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:14:02,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:14:02,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:02" (1/1) ... [2020-10-19 23:14:02,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:02" (1/1) ... [2020-10-19 23:14:02,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:14:02,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:14:02,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:14:02,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:14:02,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:02" (1/1) ... [2020-10-19 23:14:02,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:02" (1/1) ... [2020-10-19 23:14:02,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:02" (1/1) ... [2020-10-19 23:14:02,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:02" (1/1) ... [2020-10-19 23:14:02,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:02" (1/1) ... [2020-10-19 23:14:02,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:02" (1/1) ... [2020-10-19 23:14:02,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:02" (1/1) ... [2020-10-19 23:14:02,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:14:02,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:14:02,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:14:02,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:14:02,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:02" (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 23:14:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:14:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:14:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:14:02,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:14:04,875 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:14:04,885 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:14:04,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:14:04 BoogieIcfgContainer [2020-10-19 23:14:04,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:14:04,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:14:04,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:14:04,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:14:04,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:14:01" (1/3) ... [2020-10-19 23:14:04,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0c74c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:14:04, skipping insertion in model container [2020-10-19 23:14:04,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:02" (2/3) ... [2020-10-19 23:14:04,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0c74c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:14:04, skipping insertion in model container [2020-10-19 23:14:04,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:14:04" (3/3) ... [2020-10-19 23:14:04,901 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label50.c [2020-10-19 23:14:04,913 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:14:04,923 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:14:04,937 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:14:04,976 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:14:04,976 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:14:04,976 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:14:04,977 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:14:04,977 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:14:04,977 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:14:04,978 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:14:04,978 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:14:05,006 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-10-19 23:14:05,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-19 23:14:05,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:05,016 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] [2020-10-19 23:14:05,017 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:05,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:05,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1318097310, now seen corresponding path program 1 times [2020-10-19 23:14:05,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:05,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774406044] [2020-10-19 23:14:05,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:05,306 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 23:14:05,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774406044] [2020-10-19 23:14:05,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:05,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:14:05,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333262385] [2020-10-19 23:14:05,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:05,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:05,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:05,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:05,334 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-10-19 23:14:06,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:06,746 INFO L93 Difference]: Finished difference Result 777 states and 1364 transitions. [2020-10-19 23:14:06,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:06,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-10-19 23:14:06,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:06,766 INFO L225 Difference]: With dead ends: 777 [2020-10-19 23:14:06,766 INFO L226 Difference]: Without dead ends: 413 [2020-10-19 23:14:06,771 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 23:14:06,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-10-19 23:14:06,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2020-10-19 23:14:06,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-10-19 23:14:06,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2020-10-19 23:14:06,838 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 36 [2020-10-19 23:14:06,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:06,839 INFO L481 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2020-10-19 23:14:06,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:06,839 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2020-10-19 23:14:06,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-19 23:14:06,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:06,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:06,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:14:06,844 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:06,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:06,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1965649882, now seen corresponding path program 1 times [2020-10-19 23:14:06,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:06,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581864579] [2020-10-19 23:14:06,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:07,077 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:07,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581864579] [2020-10-19 23:14:07,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:07,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:14:07,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088022559] [2020-10-19 23:14:07,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:07,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:07,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:07,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:07,083 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand 3 states. [2020-10-19 23:14:08,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:08,188 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2020-10-19 23:14:08,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:08,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-10-19 23:14:08,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:08,193 INFO L225 Difference]: With dead ends: 1209 [2020-10-19 23:14:08,193 INFO L226 Difference]: Without dead ends: 800 [2020-10-19 23:14:08,195 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 23:14:08,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-10-19 23:14:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2020-10-19 23:14:08,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2020-10-19 23:14:08,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions. [2020-10-19 23:14:08,237 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 104 [2020-10-19 23:14:08,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:08,238 INFO L481 AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions. [2020-10-19 23:14:08,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions. [2020-10-19 23:14:08,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-19 23:14:08,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:08,242 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:08,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:14:08,243 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:08,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:08,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1243453346, now seen corresponding path program 1 times [2020-10-19 23:14:08,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:08,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540482996] [2020-10-19 23:14:08,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:08,389 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:08,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540482996] [2020-10-19 23:14:08,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:08,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:14:08,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692914867] [2020-10-19 23:14:08,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:08,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:08,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:08,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:08,392 INFO L87 Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand 3 states. [2020-10-19 23:14:09,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:09,450 INFO L93 Difference]: Finished difference Result 1941 states and 2630 transitions. [2020-10-19 23:14:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:09,451 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-10-19 23:14:09,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:09,458 INFO L225 Difference]: With dead ends: 1941 [2020-10-19 23:14:09,458 INFO L226 Difference]: Without dead ends: 1156 [2020-10-19 23:14:09,459 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 23:14:09,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2020-10-19 23:14:09,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1156. [2020-10-19 23:14:09,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1156 states. [2020-10-19 23:14:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions. [2020-10-19 23:14:09,499 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 105 [2020-10-19 23:14:09,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:09,500 INFO L481 AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions. [2020-10-19 23:14:09,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:09,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions. [2020-10-19 23:14:09,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-19 23:14:09,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:09,507 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:09,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:14:09,508 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:09,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:09,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1834745314, now seen corresponding path program 1 times [2020-10-19 23:14:09,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:09,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790225102] [2020-10-19 23:14:09,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:09,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790225102] [2020-10-19 23:14:09,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:09,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:09,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429710634] [2020-10-19 23:14:09,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:09,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:09,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:09,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:09,715 INFO L87 Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand 3 states. [2020-10-19 23:14:10,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:10,833 INFO L93 Difference]: Finished difference Result 2877 states and 3707 transitions. [2020-10-19 23:14:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:10,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-19 23:14:10,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:10,843 INFO L225 Difference]: With dead ends: 2877 [2020-10-19 23:14:10,843 INFO L226 Difference]: Without dead ends: 1723 [2020-10-19 23:14:10,846 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 23:14:10,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2020-10-19 23:14:10,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1529. [2020-10-19 23:14:10,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1529 states. [2020-10-19 23:14:10,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 1927 transitions. [2020-10-19 23:14:10,876 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 1927 transitions. Word has length 148 [2020-10-19 23:14:10,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:10,877 INFO L481 AbstractCegarLoop]: Abstraction has 1529 states and 1927 transitions. [2020-10-19 23:14:10,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:10,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 1927 transitions. [2020-10-19 23:14:10,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-19 23:14:10,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:10,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:10,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:14:10,885 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:10,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:10,887 INFO L82 PathProgramCache]: Analyzing trace with hash -937424869, now seen corresponding path program 1 times [2020-10-19 23:14:10,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:10,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202509556] [2020-10-19 23:14:10,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:11,117 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:11,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202509556] [2020-10-19 23:14:11,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:11,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:11,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289160515] [2020-10-19 23:14:11,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:11,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:11,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:11,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:11,122 INFO L87 Difference]: Start difference. First operand 1529 states and 1927 transitions. Second operand 3 states. [2020-10-19 23:14:12,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:12,309 INFO L93 Difference]: Finished difference Result 3617 states and 4543 transitions. [2020-10-19 23:14:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:12,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-10-19 23:14:12,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:12,320 INFO L225 Difference]: With dead ends: 3617 [2020-10-19 23:14:12,320 INFO L226 Difference]: Without dead ends: 1906 [2020-10-19 23:14:12,323 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 23:14:12,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2020-10-19 23:14:12,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1897. [2020-10-19 23:14:12,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1897 states. [2020-10-19 23:14:12,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2363 transitions. [2020-10-19 23:14:12,357 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2363 transitions. Word has length 179 [2020-10-19 23:14:12,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:12,358 INFO L481 AbstractCegarLoop]: Abstraction has 1897 states and 2363 transitions. [2020-10-19 23:14:12,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:12,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2363 transitions. [2020-10-19 23:14:12,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-19 23:14:12,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:12,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:12,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 23:14:12,364 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:12,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:12,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1168587143, now seen corresponding path program 1 times [2020-10-19 23:14:12,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:12,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050954674] [2020-10-19 23:14:12,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-19 23:14:12,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050954674] [2020-10-19 23:14:12,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:12,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:14:12,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252922910] [2020-10-19 23:14:12,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:12,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:12,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:12,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:12,569 INFO L87 Difference]: Start difference. First operand 1897 states and 2363 transitions. Second operand 3 states. [2020-10-19 23:14:13,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:13,755 INFO L93 Difference]: Finished difference Result 4904 states and 6161 transitions. [2020-10-19 23:14:13,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:13,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-10-19 23:14:13,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:13,772 INFO L225 Difference]: With dead ends: 4904 [2020-10-19 23:14:13,773 INFO L226 Difference]: Without dead ends: 3009 [2020-10-19 23:14:13,777 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 23:14:13,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3009 states. [2020-10-19 23:14:13,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3009 to 3008. [2020-10-19 23:14:13,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3008 states. [2020-10-19 23:14:13,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 3620 transitions. [2020-10-19 23:14:13,839 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 3620 transitions. Word has length 217 [2020-10-19 23:14:13,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:13,840 INFO L481 AbstractCegarLoop]: Abstraction has 3008 states and 3620 transitions. [2020-10-19 23:14:13,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:13,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 3620 transitions. [2020-10-19 23:14:13,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-19 23:14:13,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:13,845 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:14:13,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 23:14:13,846 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:13,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:13,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1203671281, now seen corresponding path program 1 times [2020-10-19 23:14:13,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:13,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503446110] [2020-10-19 23:14:13,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:14,045 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-19 23:14:14,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503446110] [2020-10-19 23:14:14,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:14,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:14,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092342221] [2020-10-19 23:14:14,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:14,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:14,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:14,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:14,049 INFO L87 Difference]: Start difference. First operand 3008 states and 3620 transitions. Second operand 3 states. [2020-10-19 23:14:15,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:15,459 INFO L93 Difference]: Finished difference Result 6759 states and 8218 transitions. [2020-10-19 23:14:15,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:15,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-10-19 23:14:15,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:15,480 INFO L225 Difference]: With dead ends: 6759 [2020-10-19 23:14:15,481 INFO L226 Difference]: Without dead ends: 3753 [2020-10-19 23:14:15,487 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 23:14:15,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2020-10-19 23:14:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3560. [2020-10-19 23:14:15,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3560 states. [2020-10-19 23:14:15,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 4267 transitions. [2020-10-19 23:14:15,560 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 4267 transitions. Word has length 218 [2020-10-19 23:14:15,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:15,560 INFO L481 AbstractCegarLoop]: Abstraction has 3560 states and 4267 transitions. [2020-10-19 23:14:15,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:15,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 4267 transitions. [2020-10-19 23:14:15,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-19 23:14:15,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:15,566 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:14:15,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:14:15,566 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:15,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:15,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1690315137, now seen corresponding path program 1 times [2020-10-19 23:14:15,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:15,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031544041] [2020-10-19 23:14:15,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:15,838 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:15,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031544041] [2020-10-19 23:14:15,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:15,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:14:15,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767766052] [2020-10-19 23:14:15,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:15,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:15,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:15,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:15,841 INFO L87 Difference]: Start difference. First operand 3560 states and 4267 transitions. Second operand 4 states. [2020-10-19 23:14:18,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:18,065 INFO L93 Difference]: Finished difference Result 11016 states and 13448 transitions. [2020-10-19 23:14:18,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:18,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 238 [2020-10-19 23:14:18,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:18,116 INFO L225 Difference]: With dead ends: 11016 [2020-10-19 23:14:18,117 INFO L226 Difference]: Without dead ends: 7458 [2020-10-19 23:14:18,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:18,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7458 states. [2020-10-19 23:14:18,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7458 to 6158. [2020-10-19 23:14:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6158 states. [2020-10-19 23:14:18,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6158 states to 6158 states and 7351 transitions. [2020-10-19 23:14:18,260 INFO L78 Accepts]: Start accepts. Automaton has 6158 states and 7351 transitions. Word has length 238 [2020-10-19 23:14:18,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:18,261 INFO L481 AbstractCegarLoop]: Abstraction has 6158 states and 7351 transitions. [2020-10-19 23:14:18,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:18,261 INFO L276 IsEmpty]: Start isEmpty. Operand 6158 states and 7351 transitions. [2020-10-19 23:14:18,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-19 23:14:18,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:18,266 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:14:18,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:14:18,267 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:18,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:18,268 INFO L82 PathProgramCache]: Analyzing trace with hash 330772358, now seen corresponding path program 1 times [2020-10-19 23:14:18,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:18,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096798102] [2020-10-19 23:14:18,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:18,561 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:18,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096798102] [2020-10-19 23:14:18,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:18,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:14:18,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410131552] [2020-10-19 23:14:18,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:18,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:18,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:18,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:18,569 INFO L87 Difference]: Start difference. First operand 6158 states and 7351 transitions. Second operand 4 states. [2020-10-19 23:14:20,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:20,756 INFO L93 Difference]: Finished difference Result 15827 states and 19193 transitions. [2020-10-19 23:14:20,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:20,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 248 [2020-10-19 23:14:20,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:20,819 INFO L225 Difference]: With dead ends: 15827 [2020-10-19 23:14:20,819 INFO L226 Difference]: Without dead ends: 9671 [2020-10-19 23:14:20,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:20,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9671 states. [2020-10-19 23:14:20,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9671 to 9291. [2020-10-19 23:14:20,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9291 states. [2020-10-19 23:14:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9291 states to 9291 states and 11143 transitions. [2020-10-19 23:14:20,986 INFO L78 Accepts]: Start accepts. Automaton has 9291 states and 11143 transitions. Word has length 248 [2020-10-19 23:14:20,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:20,987 INFO L481 AbstractCegarLoop]: Abstraction has 9291 states and 11143 transitions. [2020-10-19 23:14:20,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:20,988 INFO L276 IsEmpty]: Start isEmpty. Operand 9291 states and 11143 transitions. [2020-10-19 23:14:20,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-19 23:14:20,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:20,994 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:14:20,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 23:14:20,994 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:20,995 INFO L82 PathProgramCache]: Analyzing trace with hash -468394689, now seen corresponding path program 1 times [2020-10-19 23:14:20,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:20,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749223620] [2020-10-19 23:14:20,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:21,504 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:21,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749223620] [2020-10-19 23:14:21,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:21,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:21,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38745124] [2020-10-19 23:14:21,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:21,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:21,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:21,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:21,510 INFO L87 Difference]: Start difference. First operand 9291 states and 11143 transitions. Second operand 3 states. [2020-10-19 23:14:22,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:22,905 INFO L93 Difference]: Finished difference Result 22856 states and 27561 transitions. [2020-10-19 23:14:22,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:22,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2020-10-19 23:14:22,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:22,933 INFO L225 Difference]: With dead ends: 22856 [2020-10-19 23:14:22,934 INFO L226 Difference]: Without dead ends: 13567 [2020-10-19 23:14:22,946 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 23:14:22,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13567 states. [2020-10-19 23:14:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13567 to 13563. [2020-10-19 23:14:23,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13563 states. [2020-10-19 23:14:23,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13563 states to 13563 states and 16104 transitions. [2020-10-19 23:14:23,533 INFO L78 Accepts]: Start accepts. Automaton has 13563 states and 16104 transitions. Word has length 248 [2020-10-19 23:14:23,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:23,534 INFO L481 AbstractCegarLoop]: Abstraction has 13563 states and 16104 transitions. [2020-10-19 23:14:23,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:23,534 INFO L276 IsEmpty]: Start isEmpty. Operand 13563 states and 16104 transitions. [2020-10-19 23:14:23,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-19 23:14:23,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:23,541 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:14:23,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 23:14:23,542 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:23,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:23,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1392587706, now seen corresponding path program 1 times [2020-10-19 23:14:23,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:23,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704029445] [2020-10-19 23:14:23,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-19 23:14:23,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704029445] [2020-10-19 23:14:23,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:23,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:23,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299579698] [2020-10-19 23:14:23,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:23,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:23,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:23,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:23,738 INFO L87 Difference]: Start difference. First operand 13563 states and 16104 transitions. Second operand 3 states. [2020-10-19 23:14:25,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:25,377 INFO L93 Difference]: Finished difference Result 32459 states and 38720 transitions. [2020-10-19 23:14:25,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:25,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2020-10-19 23:14:25,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:25,410 INFO L225 Difference]: With dead ends: 32459 [2020-10-19 23:14:25,411 INFO L226 Difference]: Without dead ends: 18714 [2020-10-19 23:14:25,429 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 23:14:25,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18714 states. [2020-10-19 23:14:25,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18714 to 17790. [2020-10-19 23:14:25,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17790 states. [2020-10-19 23:14:25,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17790 states to 17790 states and 20771 transitions. [2020-10-19 23:14:25,657 INFO L78 Accepts]: Start accepts. Automaton has 17790 states and 20771 transitions. Word has length 250 [2020-10-19 23:14:25,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:25,658 INFO L481 AbstractCegarLoop]: Abstraction has 17790 states and 20771 transitions. [2020-10-19 23:14:25,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:25,658 INFO L276 IsEmpty]: Start isEmpty. Operand 17790 states and 20771 transitions. [2020-10-19 23:14:25,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-19 23:14:25,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:25,665 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:14:25,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 23:14:25,665 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:25,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:25,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1673481877, now seen corresponding path program 1 times [2020-10-19 23:14:25,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:25,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307034426] [2020-10-19 23:14:25,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-19 23:14:25,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307034426] [2020-10-19 23:14:25,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:25,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:25,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692032691] [2020-10-19 23:14:25,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:25,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:25,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:25,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:25,937 INFO L87 Difference]: Start difference. First operand 17790 states and 20771 transitions. Second operand 3 states. [2020-10-19 23:14:27,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:27,433 INFO L93 Difference]: Finished difference Result 35588 states and 41560 transitions. [2020-10-19 23:14:27,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:27,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-10-19 23:14:27,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:27,467 INFO L225 Difference]: With dead ends: 35588 [2020-10-19 23:14:27,468 INFO L226 Difference]: Without dead ends: 17800 [2020-10-19 23:14:27,488 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 23:14:27,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17800 states. [2020-10-19 23:14:28,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17800 to 17789. [2020-10-19 23:14:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17789 states. [2020-10-19 23:14:28,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17789 states to 17789 states and 20270 transitions. [2020-10-19 23:14:28,121 INFO L78 Accepts]: Start accepts. Automaton has 17789 states and 20270 transitions. Word has length 255 [2020-10-19 23:14:28,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:28,122 INFO L481 AbstractCegarLoop]: Abstraction has 17789 states and 20270 transitions. [2020-10-19 23:14:28,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:28,122 INFO L276 IsEmpty]: Start isEmpty. Operand 17789 states and 20270 transitions. [2020-10-19 23:14:28,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-19 23:14:28,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:28,130 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:14:28,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 23:14:28,131 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:28,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:28,131 INFO L82 PathProgramCache]: Analyzing trace with hash 2054210108, now seen corresponding path program 1 times [2020-10-19 23:14:28,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:28,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385231484] [2020-10-19 23:14:28,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:28,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385231484] [2020-10-19 23:14:28,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:28,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:28,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694905811] [2020-10-19 23:14:28,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:28,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:28,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:28,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:28,418 INFO L87 Difference]: Start difference. First operand 17789 states and 20270 transitions. Second operand 4 states. [2020-10-19 23:14:30,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:30,289 INFO L93 Difference]: Finished difference Result 32961 states and 37608 transitions. [2020-10-19 23:14:30,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:30,290 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 269 [2020-10-19 23:14:30,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:30,318 INFO L225 Difference]: With dead ends: 32961 [2020-10-19 23:14:30,319 INFO L226 Difference]: Without dead ends: 14806 [2020-10-19 23:14:30,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:30,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14806 states. [2020-10-19 23:14:30,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14806 to 11297. [2020-10-19 23:14:30,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11297 states. [2020-10-19 23:14:30,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11297 states to 11297 states and 12559 transitions. [2020-10-19 23:14:30,499 INFO L78 Accepts]: Start accepts. Automaton has 11297 states and 12559 transitions. Word has length 269 [2020-10-19 23:14:30,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:30,500 INFO L481 AbstractCegarLoop]: Abstraction has 11297 states and 12559 transitions. [2020-10-19 23:14:30,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:30,502 INFO L276 IsEmpty]: Start isEmpty. Operand 11297 states and 12559 transitions. [2020-10-19 23:14:30,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-10-19 23:14:30,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:30,513 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 23:14:30,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 23:14:30,513 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:30,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:30,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1970203897, now seen corresponding path program 1 times [2020-10-19 23:14:30,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:30,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676742786] [2020-10-19 23:14:30,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:30,771 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2020-10-19 23:14:30,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676742786] [2020-10-19 23:14:30,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:30,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:30,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105358532] [2020-10-19 23:14:30,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:30,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:30,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:30,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:30,774 INFO L87 Difference]: Start difference. First operand 11297 states and 12559 transitions. Second operand 3 states. [2020-10-19 23:14:31,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:31,949 INFO L93 Difference]: Finished difference Result 23880 states and 26555 transitions. [2020-10-19 23:14:31,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:31,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 303 [2020-10-19 23:14:31,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:31,967 INFO L225 Difference]: With dead ends: 23880 [2020-10-19 23:14:31,967 INFO L226 Difference]: Without dead ends: 12585 [2020-10-19 23:14:31,976 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 23:14:31,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12585 states. [2020-10-19 23:14:32,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12585 to 12033. [2020-10-19 23:14:32,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12033 states. [2020-10-19 23:14:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12033 states to 12033 states and 13331 transitions. [2020-10-19 23:14:32,118 INFO L78 Accepts]: Start accepts. Automaton has 12033 states and 13331 transitions. Word has length 303 [2020-10-19 23:14:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:32,119 INFO L481 AbstractCegarLoop]: Abstraction has 12033 states and 13331 transitions. [2020-10-19 23:14:32,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:32,120 INFO L276 IsEmpty]: Start isEmpty. Operand 12033 states and 13331 transitions. [2020-10-19 23:14:32,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-10-19 23:14:32,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:32,130 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:14:32,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 23:14:32,131 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:32,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:32,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1016467803, now seen corresponding path program 1 times [2020-10-19 23:14:32,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:32,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634173357] [2020-10-19 23:14:32,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:32,692 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-19 23:14:32,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634173357] [2020-10-19 23:14:32,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:32,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:14:32,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999981078] [2020-10-19 23:14:32,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:32,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:32,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:32,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:32,696 INFO L87 Difference]: Start difference. First operand 12033 states and 13331 transitions. Second operand 4 states. [2020-10-19 23:14:34,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:34,939 INFO L93 Difference]: Finished difference Result 31267 states and 34620 transitions. [2020-10-19 23:14:34,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:34,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 323 [2020-10-19 23:14:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:34,961 INFO L225 Difference]: With dead ends: 31267 [2020-10-19 23:14:34,961 INFO L226 Difference]: Without dead ends: 19052 [2020-10-19 23:14:34,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:34,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19052 states. [2020-10-19 23:14:35,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19052 to 17200. [2020-10-19 23:14:35,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17200 states. [2020-10-19 23:14:35,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17200 states to 17200 states and 18973 transitions. [2020-10-19 23:14:35,258 INFO L78 Accepts]: Start accepts. Automaton has 17200 states and 18973 transitions. Word has length 323 [2020-10-19 23:14:35,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:35,259 INFO L481 AbstractCegarLoop]: Abstraction has 17200 states and 18973 transitions. [2020-10-19 23:14:35,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:35,259 INFO L276 IsEmpty]: Start isEmpty. Operand 17200 states and 18973 transitions. [2020-10-19 23:14:35,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-19 23:14:35,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:35,270 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:14:35,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 23:14:35,271 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:35,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:35,272 INFO L82 PathProgramCache]: Analyzing trace with hash 676680204, now seen corresponding path program 1 times [2020-10-19 23:14:35,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:35,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108319728] [2020-10-19 23:14:35,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:35,490 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2020-10-19 23:14:35,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108319728] [2020-10-19 23:14:35,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:35,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:35,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220584828] [2020-10-19 23:14:35,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:35,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:35,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:35,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:35,493 INFO L87 Difference]: Start difference. First operand 17200 states and 18973 transitions. Second operand 3 states. [2020-10-19 23:14:36,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:36,814 INFO L93 Difference]: Finished difference Result 36239 states and 39972 transitions. [2020-10-19 23:14:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:36,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2020-10-19 23:14:36,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:36,837 INFO L225 Difference]: With dead ends: 36239 [2020-10-19 23:14:36,837 INFO L226 Difference]: Without dead ends: 19041 [2020-10-19 23:14:36,851 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 23:14:36,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19041 states. [2020-10-19 23:14:37,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19041 to 15336. [2020-10-19 23:14:37,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15336 states. [2020-10-19 23:14:37,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15336 states to 15336 states and 16913 transitions. [2020-10-19 23:14:37,472 INFO L78 Accepts]: Start accepts. Automaton has 15336 states and 16913 transitions. Word has length 330 [2020-10-19 23:14:37,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:37,472 INFO L481 AbstractCegarLoop]: Abstraction has 15336 states and 16913 transitions. [2020-10-19 23:14:37,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:37,473 INFO L276 IsEmpty]: Start isEmpty. Operand 15336 states and 16913 transitions. [2020-10-19 23:14:37,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-10-19 23:14:37,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:37,484 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:14:37,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 23:14:37,485 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:37,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:37,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1753123512, now seen corresponding path program 1 times [2020-10-19 23:14:37,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:37,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376604291] [2020-10-19 23:14:37,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-19 23:14:37,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376604291] [2020-10-19 23:14:37,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:37,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:37,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353775894] [2020-10-19 23:14:37,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:37,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:37,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:37,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:37,679 INFO L87 Difference]: Start difference. First operand 15336 states and 16913 transitions. Second operand 3 states. [2020-10-19 23:14:38,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:38,857 INFO L93 Difference]: Finished difference Result 33429 states and 36849 transitions. [2020-10-19 23:14:38,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:38,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 332 [2020-10-19 23:14:38,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:38,875 INFO L225 Difference]: With dead ends: 33429 [2020-10-19 23:14:38,876 INFO L226 Difference]: Without dead ends: 18095 [2020-10-19 23:14:38,888 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 23:14:38,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18095 states. [2020-10-19 23:14:39,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18095 to 11650. [2020-10-19 23:14:39,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11650 states. [2020-10-19 23:14:39,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11650 states to 11650 states and 12888 transitions. [2020-10-19 23:14:39,059 INFO L78 Accepts]: Start accepts. Automaton has 11650 states and 12888 transitions. Word has length 332 [2020-10-19 23:14:39,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:39,060 INFO L481 AbstractCegarLoop]: Abstraction has 11650 states and 12888 transitions. [2020-10-19 23:14:39,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:39,060 INFO L276 IsEmpty]: Start isEmpty. Operand 11650 states and 12888 transitions. [2020-10-19 23:14:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-10-19 23:14:39,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:39,075 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:14:39,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-19 23:14:39,075 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:39,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:39,076 INFO L82 PathProgramCache]: Analyzing trace with hash 300821086, now seen corresponding path program 1 times [2020-10-19 23:14:39,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:39,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969474724] [2020-10-19 23:14:39,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:39,794 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2020-10-19 23:14:39,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969474724] [2020-10-19 23:14:39,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:39,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:39,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990206189] [2020-10-19 23:14:39,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:39,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:39,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:39,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:39,797 INFO L87 Difference]: Start difference. First operand 11650 states and 12888 transitions. Second operand 4 states. [2020-10-19 23:14:41,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:41,306 INFO L93 Difference]: Finished difference Result 24403 states and 26921 transitions. [2020-10-19 23:14:41,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:41,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 452 [2020-10-19 23:14:41,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:41,322 INFO L225 Difference]: With dead ends: 24403 [2020-10-19 23:14:41,322 INFO L226 Difference]: Without dead ends: 12203 [2020-10-19 23:14:41,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:41,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12203 states. [2020-10-19 23:14:41,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12203 to 11282. [2020-10-19 23:14:41,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11282 states. [2020-10-19 23:14:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11282 states to 11282 states and 12421 transitions. [2020-10-19 23:14:41,527 INFO L78 Accepts]: Start accepts. Automaton has 11282 states and 12421 transitions. Word has length 452 [2020-10-19 23:14:41,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:41,528 INFO L481 AbstractCegarLoop]: Abstraction has 11282 states and 12421 transitions. [2020-10-19 23:14:41,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:41,528 INFO L276 IsEmpty]: Start isEmpty. Operand 11282 states and 12421 transitions. [2020-10-19 23:14:41,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2020-10-19 23:14:41,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:41,543 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:14:41,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-19 23:14:41,543 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:41,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:41,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1583749290, now seen corresponding path program 1 times [2020-10-19 23:14:41,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:41,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782689202] [2020-10-19 23:14:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:41,965 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2020-10-19 23:14:41,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782689202] [2020-10-19 23:14:41,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:41,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:14:41,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411099609] [2020-10-19 23:14:41,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:41,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:41,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:41,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:41,968 INFO L87 Difference]: Start difference. First operand 11282 states and 12421 transitions. Second operand 4 states. [2020-10-19 23:14:44,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:44,268 INFO L93 Difference]: Finished difference Result 26807 states and 29433 transitions. [2020-10-19 23:14:44,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:44,269 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 501 [2020-10-19 23:14:44,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:44,281 INFO L225 Difference]: With dead ends: 26807 [2020-10-19 23:14:44,281 INFO L226 Difference]: Without dead ends: 13131 [2020-10-19 23:14:44,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:44,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13131 states. [2020-10-19 23:14:44,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13131 to 9069. [2020-10-19 23:14:44,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9069 states. [2020-10-19 23:14:44,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9069 states to 9069 states and 9877 transitions. [2020-10-19 23:14:44,375 INFO L78 Accepts]: Start accepts. Automaton has 9069 states and 9877 transitions. Word has length 501 [2020-10-19 23:14:44,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:44,376 INFO L481 AbstractCegarLoop]: Abstraction has 9069 states and 9877 transitions. [2020-10-19 23:14:44,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:44,376 INFO L276 IsEmpty]: Start isEmpty. Operand 9069 states and 9877 transitions. [2020-10-19 23:14:44,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2020-10-19 23:14:44,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:44,390 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-19 23:14:44,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-19 23:14:44,390 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:44,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:44,391 INFO L82 PathProgramCache]: Analyzing trace with hash -101551647, now seen corresponding path program 1 times [2020-10-19 23:14:44,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:44,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104137414] [2020-10-19 23:14:44,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:44,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 927 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2020-10-19 23:14:44,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104137414] [2020-10-19 23:14:44,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:44,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:44,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680738159] [2020-10-19 23:14:44,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:44,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:44,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:44,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:44,978 INFO L87 Difference]: Start difference. First operand 9069 states and 9877 transitions. Second operand 4 states. [2020-10-19 23:14:46,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:46,770 INFO L93 Difference]: Finished difference Result 22006 states and 23935 transitions. [2020-10-19 23:14:46,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:46,771 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 619 [2020-10-19 23:14:46,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:46,782 INFO L225 Difference]: With dead ends: 22006 [2020-10-19 23:14:46,782 INFO L226 Difference]: Without dead ends: 12939 [2020-10-19 23:14:46,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:46,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12939 states. [2020-10-19 23:14:46,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12939 to 12571. [2020-10-19 23:14:46,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12571 states. [2020-10-19 23:14:46,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12571 states to 12571 states and 13669 transitions. [2020-10-19 23:14:46,926 INFO L78 Accepts]: Start accepts. Automaton has 12571 states and 13669 transitions. Word has length 619 [2020-10-19 23:14:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:46,927 INFO L481 AbstractCegarLoop]: Abstraction has 12571 states and 13669 transitions. [2020-10-19 23:14:46,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:46,927 INFO L276 IsEmpty]: Start isEmpty. Operand 12571 states and 13669 transitions. [2020-10-19 23:14:46,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2020-10-19 23:14:46,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:46,942 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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 23:14:46,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-19 23:14:46,943 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:46,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:46,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1562520143, now seen corresponding path program 1 times [2020-10-19 23:14:46,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:46,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681406415] [2020-10-19 23:14:46,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:47,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 843 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2020-10-19 23:14:47,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681406415] [2020-10-19 23:14:47,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:47,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:47,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096906003] [2020-10-19 23:14:47,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:47,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:47,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:47,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:47,571 INFO L87 Difference]: Start difference. First operand 12571 states and 13669 transitions. Second operand 4 states. [2020-10-19 23:14:49,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:49,427 INFO L93 Difference]: Finished difference Result 26805 states and 29128 transitions. [2020-10-19 23:14:49,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:49,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 639 [2020-10-19 23:14:49,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:49,440 INFO L225 Difference]: With dead ends: 26805 [2020-10-19 23:14:49,441 INFO L226 Difference]: Without dead ends: 14052 [2020-10-19 23:14:49,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:49,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14052 states. [2020-10-19 23:14:49,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14052 to 12939. [2020-10-19 23:14:49,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12939 states. [2020-10-19 23:14:49,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12939 states to 12939 states and 14053 transitions. [2020-10-19 23:14:49,552 INFO L78 Accepts]: Start accepts. Automaton has 12939 states and 14053 transitions. Word has length 639 [2020-10-19 23:14:49,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:49,553 INFO L481 AbstractCegarLoop]: Abstraction has 12939 states and 14053 transitions. [2020-10-19 23:14:49,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:49,553 INFO L276 IsEmpty]: Start isEmpty. Operand 12939 states and 14053 transitions. [2020-10-19 23:14:49,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2020-10-19 23:14:49,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:49,564 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:49,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-19 23:14:49,565 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:49,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:49,566 INFO L82 PathProgramCache]: Analyzing trace with hash -986890188, now seen corresponding path program 1 times [2020-10-19 23:14:49,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:49,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069666013] [2020-10-19 23:14:49,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:50,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 1301 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2020-10-19 23:14:50,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069666013] [2020-10-19 23:14:50,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:50,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:50,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589525371] [2020-10-19 23:14:50,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:50,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:50,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:50,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:50,137 INFO L87 Difference]: Start difference. First operand 12939 states and 14053 transitions. Second operand 3 states. [2020-10-19 23:14:51,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:51,405 INFO L93 Difference]: Finished difference Result 26075 states and 28315 transitions. [2020-10-19 23:14:51,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:51,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 780 [2020-10-19 23:14:51,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:51,422 INFO L225 Difference]: With dead ends: 26075 [2020-10-19 23:14:51,423 INFO L226 Difference]: Without dead ends: 13322 [2020-10-19 23:14:51,431 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 23:14:51,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13322 states. [2020-10-19 23:14:51,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13322 to 12571. [2020-10-19 23:14:51,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12571 states. [2020-10-19 23:14:51,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12571 states to 12571 states and 13629 transitions. [2020-10-19 23:14:51,546 INFO L78 Accepts]: Start accepts. Automaton has 12571 states and 13629 transitions. Word has length 780 [2020-10-19 23:14:51,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:51,547 INFO L481 AbstractCegarLoop]: Abstraction has 12571 states and 13629 transitions. [2020-10-19 23:14:51,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:51,547 INFO L276 IsEmpty]: Start isEmpty. Operand 12571 states and 13629 transitions. [2020-10-19 23:14:51,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2020-10-19 23:14:51,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:51,557 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:14:51,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-19 23:14:51,558 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:51,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:51,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1055859390, now seen corresponding path program 1 times [2020-10-19 23:14:51,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:51,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275568004] [2020-10-19 23:14:51,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:52,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1880 backedges. 1355 proven. 0 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2020-10-19 23:14:52,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275568004] [2020-10-19 23:14:52,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:52,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:52,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951970854] [2020-10-19 23:14:52,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:52,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:52,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:52,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:52,339 INFO L87 Difference]: Start difference. First operand 12571 states and 13629 transitions. Second operand 4 states. [2020-10-19 23:14:54,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:54,144 INFO L93 Difference]: Finished difference Result 26253 states and 28457 transitions. [2020-10-19 23:14:54,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:54,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 785 [2020-10-19 23:14:54,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:54,157 INFO L225 Difference]: With dead ends: 26253 [2020-10-19 23:14:54,158 INFO L226 Difference]: Without dead ends: 13868 [2020-10-19 23:14:54,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:54,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13868 states. [2020-10-19 23:14:54,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13868 to 12387. [2020-10-19 23:14:54,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12387 states. [2020-10-19 23:14:54,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12387 states to 12387 states and 13421 transitions. [2020-10-19 23:14:54,275 INFO L78 Accepts]: Start accepts. Automaton has 12387 states and 13421 transitions. Word has length 785 [2020-10-19 23:14:54,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:54,276 INFO L481 AbstractCegarLoop]: Abstraction has 12387 states and 13421 transitions. [2020-10-19 23:14:54,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:54,276 INFO L276 IsEmpty]: Start isEmpty. Operand 12387 states and 13421 transitions. [2020-10-19 23:14:54,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2020-10-19 23:14:54,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:54,293 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 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 23:14:54,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-19 23:14:54,293 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:54,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:54,293 INFO L82 PathProgramCache]: Analyzing trace with hash -353479639, now seen corresponding path program 1 times [2020-10-19 23:14:54,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:54,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051451532] [2020-10-19 23:14:54,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:54,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2175 backedges. 1310 proven. 0 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2020-10-19 23:14:54,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051451532] [2020-10-19 23:14:54,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:54,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:14:54,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188616815] [2020-10-19 23:14:54,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:54,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:54,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:54,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:54,992 INFO L87 Difference]: Start difference. First operand 12387 states and 13421 transitions. Second operand 4 states. [2020-10-19 23:14:56,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:56,993 INFO L93 Difference]: Finished difference Result 26987 states and 29174 transitions. [2020-10-19 23:14:56,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:56,999 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 799 [2020-10-19 23:14:57,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:57,000 INFO L225 Difference]: With dead ends: 26987 [2020-10-19 23:14:57,000 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:14:57,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:57,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:14:57,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:14:57,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:14:57,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:14:57,009 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 799 [2020-10-19 23:14:57,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:57,010 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:14:57,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:57,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:14:57,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:14:57,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-19 23:14:57,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:14:57,753 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 512 DAG size of output: 341 [2020-10-19 23:14:58,310 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 512 DAG size of output: 341 [2020-10-19 23:15:00,815 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 328 DAG size of output: 76 [2020-10-19 23:15:03,358 WARN L193 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 328 DAG size of output: 76 [2020-10-19 23:15:03,362 INFO L274 CegarLoopResult]: For program point L960(lines 960 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,363 INFO L274 CegarLoopResult]: For program point L696(lines 696 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,363 INFO L274 CegarLoopResult]: For program point L630(lines 630 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,364 INFO L270 CegarLoopResult]: At program point L1027(lines 24 1028) the Hoare annotation is: (let ((.cse11 (<= (+ ~a29~0 59274) 0)) (.cse12 (= ~a25~0 11)) (.cse0 (<= ~a29~0 275)) (.cse7 (<= ~a29~0 599998)) (.cse13 (< 306 ~a23~0)) (.cse8 (<= ~a23~0 244)) (.cse10 (<= ~a25~0 9)) (.cse4 (<= ~a25~0 10)) (.cse1 (= ~a4~0 0)) (.cse15 (= ~a25~0 10)) (.cse14 (<= ~a29~0 130)) (.cse9 (<= ~a29~0 384312)) (.cse2 (= ~a25~0 13)) (.cse5 (= ~a4~0 1)) (.cse6 (= ~a25~0 12)) (.cse3 (<= (+ ~a23~0 43) 0)) (.cse16 (<= ~a29~0 220))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (<= ~a29~0 245) .cse5) (and .cse1 .cse6 .cse7 .cse8) (and .cse6 .cse5 .cse8) (and .cse9 .cse1 .cse10 .cse3) (and .cse1 .cse2 .cse11 .cse8) (and .cse12 .cse1 .cse3 .cse7) (and .cse11 .cse6 .cse5) (and .cse9 .cse13 .cse6 .cse5) (and .cse12 .cse14 .cse3) (and .cse0 .cse12 .cse1 .cse8) (and .cse12 .cse5) (and .cse0 .cse1 .cse6) (and .cse1 .cse15 .cse16 .cse8) (and .cse4 (<= 381712 ~a29~0) .cse7 .cse5) (and .cse13 .cse15 .cse5) (and .cse1 .cse10 .cse16 .cse8) (and .cse10 (<= (+ ~a29~0 275824) 0) .cse3) (and .cse10 .cse5) (and .cse4 .cse3 .cse5) (and .cse1 .cse15 .cse14) (and .cse9 .cse2 .cse5) (and .cse6 .cse3 .cse16))) [2020-10-19 23:15:03,364 INFO L274 CegarLoopResult]: For program point L895(lines 895 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,365 INFO L274 CegarLoopResult]: For program point L697(lines 697 707) no Hoare annotation was computed. [2020-10-19 23:15:03,365 INFO L274 CegarLoopResult]: For program point L697-2(lines 697 707) no Hoare annotation was computed. [2020-10-19 23:15:03,365 INFO L274 CegarLoopResult]: For program point L367(lines 367 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,365 INFO L274 CegarLoopResult]: For program point L301(lines 301 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,365 INFO L274 CegarLoopResult]: For program point L235(lines 235 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,365 INFO L274 CegarLoopResult]: For program point L169-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,366 INFO L274 CegarLoopResult]: For program point L103-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,366 INFO L274 CegarLoopResult]: For program point L37-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,366 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-10-19 23:15:03,366 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-10-19 23:15:03,366 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-10-19 23:15:03,366 INFO L277 CegarLoopResult]: At program point L1030(lines 1030 1046) the Hoare annotation is: true [2020-10-19 23:15:03,367 INFO L274 CegarLoopResult]: For program point L568(lines 568 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,367 INFO L274 CegarLoopResult]: For program point L502(lines 502 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,367 INFO L274 CegarLoopResult]: For program point L172-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,367 INFO L274 CegarLoopResult]: For program point L106-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,367 INFO L274 CegarLoopResult]: For program point L40-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,368 INFO L274 CegarLoopResult]: For program point L965(lines 965 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,368 INFO L274 CegarLoopResult]: For program point L833(lines 833 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,368 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-10-19 23:15:03,368 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-10-19 23:15:03,368 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-10-19 23:15:03,368 INFO L274 CegarLoopResult]: For program point L900(lines 900 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,369 INFO L274 CegarLoopResult]: For program point L438(lines 438 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,369 INFO L274 CegarLoopResult]: For program point L372(lines 372 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,369 INFO L274 CegarLoopResult]: For program point L637(lines 637 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,369 INFO L274 CegarLoopResult]: For program point L307(lines 307 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,369 INFO L274 CegarLoopResult]: For program point L175-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,369 INFO L274 CegarLoopResult]: For program point L109-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,369 INFO L274 CegarLoopResult]: For program point L43-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,369 INFO L274 CegarLoopResult]: For program point L242(lines 242 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,369 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-10-19 23:15:03,369 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-10-19 23:15:03,369 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-10-19 23:15:03,370 INFO L274 CegarLoopResult]: For program point L771(lines 771 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,370 INFO L270 CegarLoopResult]: At program point L1036-2(lines 1036 1045) the Hoare annotation is: (let ((.cse11 (<= (+ ~a29~0 59274) 0)) (.cse12 (= ~a25~0 11)) (.cse0 (<= ~a29~0 275)) (.cse7 (<= ~a29~0 599998)) (.cse13 (< 306 ~a23~0)) (.cse8 (<= ~a23~0 244)) (.cse10 (<= ~a25~0 9)) (.cse4 (<= ~a25~0 10)) (.cse1 (= ~a4~0 0)) (.cse15 (= ~a25~0 10)) (.cse14 (<= ~a29~0 130)) (.cse9 (<= ~a29~0 384312)) (.cse2 (= ~a25~0 13)) (.cse5 (= ~a4~0 1)) (.cse6 (= ~a25~0 12)) (.cse3 (<= (+ ~a23~0 43) 0)) (.cse16 (<= ~a29~0 220))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (<= ~a29~0 245) .cse5) (and .cse1 .cse6 .cse7 .cse8) (and .cse6 .cse5 .cse8) (and .cse9 .cse1 .cse10 .cse3) (and .cse1 .cse2 .cse11 .cse8) (and .cse12 .cse1 .cse3 .cse7) (and .cse11 .cse6 .cse5) (and .cse9 .cse13 .cse6 .cse5) (and .cse12 .cse14 .cse3) (and .cse0 .cse12 .cse1 .cse8) (and .cse12 .cse5) (and .cse0 .cse1 .cse6) (and .cse1 .cse15 .cse16 .cse8) (and .cse4 (<= 381712 ~a29~0) .cse7 .cse5) (and .cse13 .cse15 .cse5) (and .cse1 .cse10 .cse16 .cse8) (and .cse10 (<= (+ ~a29~0 275824) 0) .cse3) (and .cse10 .cse5) (and .cse4 .cse3 .cse5) (and .cse1 .cse15 .cse14) (and .cse9 .cse2 .cse5) (and .cse6 .cse3 .cse16))) [2020-10-19 23:15:03,370 INFO L274 CegarLoopResult]: For program point L838(lines 838 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,370 INFO L274 CegarLoopResult]: For program point L574(lines 574 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,370 INFO L274 CegarLoopResult]: For program point L178-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,370 INFO L274 CegarLoopResult]: For program point L112-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,370 INFO L274 CegarLoopResult]: For program point L46-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,370 INFO L274 CegarLoopResult]: For program point L971(lines 971 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,370 INFO L274 CegarLoopResult]: For program point L905(lines 905 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,371 INFO L274 CegarLoopResult]: For program point L509(lines 509 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,371 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-10-19 23:15:03,371 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-10-19 23:15:03,371 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-10-19 23:15:03,371 INFO L274 CegarLoopResult]: For program point L972(lines 972 982) no Hoare annotation was computed. [2020-10-19 23:15:03,371 INFO L274 CegarLoopResult]: For program point L906(lines 906 916) no Hoare annotation was computed. [2020-10-19 23:15:03,371 INFO L274 CegarLoopResult]: For program point L972-2(lines 972 982) no Hoare annotation was computed. [2020-10-19 23:15:03,371 INFO L274 CegarLoopResult]: For program point L906-2(lines 906 916) no Hoare annotation was computed. [2020-10-19 23:15:03,371 INFO L274 CegarLoopResult]: For program point L708(lines 708 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,371 INFO L274 CegarLoopResult]: For program point L312(lines 312 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,371 INFO L274 CegarLoopResult]: For program point L577(lines 577 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,371 INFO L274 CegarLoopResult]: For program point L445(lines 445 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,372 INFO L274 CegarLoopResult]: For program point L379(lines 379 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,372 INFO L274 CegarLoopResult]: For program point L181-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,372 INFO L274 CegarLoopResult]: For program point L115-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,372 INFO L274 CegarLoopResult]: For program point L49-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,372 INFO L274 CegarLoopResult]: For program point L776(lines 776 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,372 INFO L274 CegarLoopResult]: For program point L644(lines 644 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,372 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-10-19 23:15:03,373 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-10-19 23:15:03,373 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-10-19 23:15:03,373 INFO L274 CegarLoopResult]: For program point L1041(line 1041) no Hoare annotation was computed. [2020-10-19 23:15:03,373 INFO L274 CegarLoopResult]: For program point L843(lines 843 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,373 INFO L274 CegarLoopResult]: For program point L249(lines 249 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,373 INFO L274 CegarLoopResult]: For program point L184-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,373 INFO L274 CegarLoopResult]: For program point L118-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,373 INFO L274 CegarLoopResult]: For program point L52-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,373 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-10-19 23:15:03,373 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-10-19 23:15:03,373 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-10-19 23:15:03,373 INFO L274 CegarLoopResult]: For program point L714(lines 714 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,374 INFO L274 CegarLoopResult]: For program point L516(lines 516 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,374 INFO L274 CegarLoopResult]: For program point L649(lines 649 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,374 INFO L274 CegarLoopResult]: For program point L583(lines 583 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,374 INFO L274 CegarLoopResult]: For program point L517(lines 517 527) no Hoare annotation was computed. [2020-10-19 23:15:03,374 INFO L274 CegarLoopResult]: For program point L517-2(lines 517 527) no Hoare annotation was computed. [2020-10-19 23:15:03,374 INFO L274 CegarLoopResult]: For program point L319(lines 319 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,374 INFO L274 CegarLoopResult]: For program point L187-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,374 INFO L274 CegarLoopResult]: For program point L121-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,374 INFO L274 CegarLoopResult]: For program point L55-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,374 INFO L274 CegarLoopResult]: For program point L848(lines 848 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,374 INFO L274 CegarLoopResult]: For program point L782(lines 782 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,374 INFO L274 CegarLoopResult]: For program point L650(lines 650 659) no Hoare annotation was computed. [2020-10-19 23:15:03,375 INFO L274 CegarLoopResult]: For program point L650-2(lines 650 659) no Hoare annotation was computed. [2020-10-19 23:15:03,375 INFO L274 CegarLoopResult]: For program point L452(lines 452 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,375 INFO L274 CegarLoopResult]: For program point L386(lines 386 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,375 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-10-19 23:15:03,375 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-10-19 23:15:03,375 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-10-19 23:15:03,375 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:15:03,375 INFO L274 CegarLoopResult]: For program point L256(lines 256 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,375 INFO L274 CegarLoopResult]: For program point L190-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,375 INFO L274 CegarLoopResult]: For program point L124-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,375 INFO L274 CegarLoopResult]: For program point L58-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,375 INFO L274 CegarLoopResult]: For program point L983(lines 983 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,376 INFO L274 CegarLoopResult]: For program point L917(lines 917 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,376 INFO L274 CegarLoopResult]: For program point L719(lines 719 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,376 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-10-19 23:15:03,376 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-10-19 23:15:03,376 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-10-19 23:15:03,376 INFO L274 CegarLoopResult]: For program point L918(lines 918 928) no Hoare annotation was computed. [2020-10-19 23:15:03,376 INFO L274 CegarLoopResult]: For program point L918-2(lines 918 928) no Hoare annotation was computed. [2020-10-19 23:15:03,376 INFO L274 CegarLoopResult]: For program point L720(lines 720 732) no Hoare annotation was computed. [2020-10-19 23:15:03,376 INFO L274 CegarLoopResult]: For program point L720-2(lines 720 732) no Hoare annotation was computed. [2020-10-19 23:15:03,376 INFO L274 CegarLoopResult]: For program point L588(lines 588 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,376 INFO L274 CegarLoopResult]: For program point L324(lines 324 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,377 INFO L274 CegarLoopResult]: For program point L589(lines 589 599) no Hoare annotation was computed. [2020-10-19 23:15:03,377 INFO L274 CegarLoopResult]: For program point L589-2(lines 589 599) no Hoare annotation was computed. [2020-10-19 23:15:03,377 INFO L274 CegarLoopResult]: For program point L193-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,377 INFO L274 CegarLoopResult]: For program point L127-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,377 INFO L274 CegarLoopResult]: For program point L61-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,377 INFO L274 CegarLoopResult]: For program point L854(lines 854 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,377 INFO L274 CegarLoopResult]: For program point L458(lines 458 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,377 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-10-19 23:15:03,377 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-10-19 23:15:03,377 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-10-19 23:15:03,377 INFO L274 CegarLoopResult]: For program point L789(lines 789 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,377 INFO L274 CegarLoopResult]: For program point L393(lines 393 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,378 INFO L274 CegarLoopResult]: For program point L262(lines 262 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,378 INFO L274 CegarLoopResult]: For program point L196-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,378 INFO L274 CegarLoopResult]: For program point L130-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,378 INFO L274 CegarLoopResult]: For program point L64-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,378 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-10-19 23:15:03,378 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-10-19 23:15:03,378 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-10-19 23:15:03,379 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:15:03,379 INFO L274 CegarLoopResult]: For program point L990(lines 990 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,379 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:15:03,379 INFO L274 CegarLoopResult]: For program point L660(lines 660 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,379 INFO L274 CegarLoopResult]: For program point L528(lines 528 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,379 INFO L274 CegarLoopResult]: For program point L331(lines 331 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,380 INFO L274 CegarLoopResult]: For program point L199-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,380 INFO L274 CegarLoopResult]: For program point L133-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,380 INFO L274 CegarLoopResult]: For program point L67-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,380 INFO L274 CegarLoopResult]: For program point L794(lines 794 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,380 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-10-19 23:15:03,380 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-10-19 23:15:03,381 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-10-19 23:15:03,381 INFO L274 CegarLoopResult]: For program point L861(lines 861 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,381 INFO L274 CegarLoopResult]: For program point L465(lines 465 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,381 INFO L274 CegarLoopResult]: For program point L267(lines 267 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,381 INFO L274 CegarLoopResult]: For program point L400(lines 400 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,381 INFO L274 CegarLoopResult]: For program point L202-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,382 INFO L274 CegarLoopResult]: For program point L136-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,382 INFO L274 CegarLoopResult]: For program point L70-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,382 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:15:03,382 INFO L274 CegarLoopResult]: For program point L995(lines 995 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,382 INFO L274 CegarLoopResult]: For program point L929(lines 929 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,382 INFO L274 CegarLoopResult]: For program point L665(lines 665 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,383 INFO L274 CegarLoopResult]: For program point L533(lines 533 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,383 INFO L274 CegarLoopResult]: For program point L401(lines 401 412) no Hoare annotation was computed. [2020-10-19 23:15:03,383 INFO L274 CegarLoopResult]: For program point L401-2(lines 401 412) no Hoare annotation was computed. [2020-10-19 23:15:03,383 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-10-19 23:15:03,383 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-10-19 23:15:03,384 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-10-19 23:15:03,384 INFO L274 CegarLoopResult]: For program point L600(lines 600 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,384 INFO L274 CegarLoopResult]: For program point L336(lines 336 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,384 INFO L274 CegarLoopResult]: For program point L270(lines 270 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,384 INFO L274 CegarLoopResult]: For program point L733(lines 733 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,384 INFO L274 CegarLoopResult]: For program point L205-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,384 INFO L274 CegarLoopResult]: For program point L139-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,384 INFO L274 CegarLoopResult]: For program point L73-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,384 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-10-19 23:15:03,384 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-10-19 23:15:03,384 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-10-19 23:15:03,385 INFO L274 CegarLoopResult]: For program point L867(lines 867 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,385 INFO L274 CegarLoopResult]: For program point L801(lines 801 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,385 INFO L274 CegarLoopResult]: For program point L934(lines 934 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,385 INFO L274 CegarLoopResult]: For program point L868(lines 868 877) no Hoare annotation was computed. [2020-10-19 23:15:03,385 INFO L274 CegarLoopResult]: For program point L868-2(lines 868 877) no Hoare annotation was computed. [2020-10-19 23:15:03,385 INFO L274 CegarLoopResult]: For program point L472(lines 472 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,385 INFO L274 CegarLoopResult]: For program point L142-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,385 INFO L274 CegarLoopResult]: For program point L76-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,385 INFO L274 CegarLoopResult]: For program point L605(lines 605 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,385 INFO L274 CegarLoopResult]: For program point L539(lines 539 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,385 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-19 23:15:03,385 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-10-19 23:15:03,386 INFO L274 CegarLoopResult]: For program point L1002(lines 1002 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,386 INFO L274 CegarLoopResult]: For program point L672(lines 672 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,386 INFO L274 CegarLoopResult]: For program point L606(lines 606 616) no Hoare annotation was computed. [2020-10-19 23:15:03,386 INFO L274 CegarLoopResult]: For program point L606-2(lines 606 616) no Hoare annotation was computed. [2020-10-19 23:15:03,386 INFO L274 CegarLoopResult]: For program point L342(lines 342 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,386 INFO L274 CegarLoopResult]: For program point L277(lines 277 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,386 INFO L274 CegarLoopResult]: For program point L145-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,386 INFO L274 CegarLoopResult]: For program point L79-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,386 INFO L274 CegarLoopResult]: For program point L806(lines 806 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,386 INFO L274 CegarLoopResult]: For program point L740(lines 740 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,386 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-10-19 23:15:03,386 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-10-19 23:15:03,387 INFO L274 CegarLoopResult]: For program point L807(lines 807 817) no Hoare annotation was computed. [2020-10-19 23:15:03,387 INFO L274 CegarLoopResult]: For program point L807-2(lines 807 817) no Hoare annotation was computed. [2020-10-19 23:15:03,387 INFO L274 CegarLoopResult]: For program point L544(lines 544 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,387 INFO L274 CegarLoopResult]: For program point L148-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,387 INFO L274 CegarLoopResult]: For program point L82-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,387 INFO L274 CegarLoopResult]: For program point L1007(lines 1007 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,387 INFO L274 CegarLoopResult]: For program point L941(lines 941 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,387 INFO L274 CegarLoopResult]: For program point L677(lines 677 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,387 INFO L274 CegarLoopResult]: For program point L479(lines 479 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,387 INFO L274 CegarLoopResult]: For program point L413(lines 413 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,387 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-10-19 23:15:03,387 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-10-19 23:15:03,388 INFO L274 CegarLoopResult]: For program point L942(lines 942 954) no Hoare annotation was computed. [2020-10-19 23:15:03,388 INFO L274 CegarLoopResult]: For program point L942-2(lines 942 954) no Hoare annotation was computed. [2020-10-19 23:15:03,388 INFO L274 CegarLoopResult]: For program point L480(lines 480 488) no Hoare annotation was computed. [2020-10-19 23:15:03,388 INFO L274 CegarLoopResult]: For program point L480-2(lines 480 488) no Hoare annotation was computed. [2020-10-19 23:15:03,388 INFO L274 CegarLoopResult]: For program point L348(lines 348 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,388 INFO L274 CegarLoopResult]: For program point L282(lines 282 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,388 INFO L274 CegarLoopResult]: For program point L216(lines 216 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,388 INFO L274 CegarLoopResult]: For program point L745(lines 745 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,388 INFO L274 CegarLoopResult]: For program point L151-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,388 INFO L274 CegarLoopResult]: For program point L85-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,388 INFO L274 CegarLoopResult]: For program point L878(lines 878 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,388 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:15:03,389 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-10-19 23:15:03,389 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-10-19 23:15:03,389 INFO L274 CegarLoopResult]: For program point L154-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,389 INFO L274 CegarLoopResult]: For program point L88-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,389 INFO L274 CegarLoopResult]: For program point L683(lines 683 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,389 INFO L274 CegarLoopResult]: For program point L617(lines 617 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,389 INFO L274 CegarLoopResult]: For program point L551(lines 551 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,389 INFO L274 CegarLoopResult]: For program point L419(lines 419 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,389 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-10-19 23:15:03,389 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-10-19 23:15:03,389 INFO L274 CegarLoopResult]: For program point L1014(lines 1014 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,389 INFO L274 CegarLoopResult]: For program point L883(lines 883 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,390 INFO L274 CegarLoopResult]: For program point L355(lines 355 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,390 INFO L274 CegarLoopResult]: For program point L289(lines 289 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,390 INFO L274 CegarLoopResult]: For program point L223(lines 223 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,390 INFO L274 CegarLoopResult]: For program point L157-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,390 INFO L274 CegarLoopResult]: For program point L91-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,390 INFO L274 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-10-19 23:15:03,390 INFO L274 CegarLoopResult]: For program point L25-2(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,390 INFO L274 CegarLoopResult]: For program point L818(lines 818 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,390 INFO L274 CegarLoopResult]: For program point L752(lines 752 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,390 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-10-19 23:15:03,390 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-10-19 23:15:03,391 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-10-19 23:15:03,391 INFO L274 CegarLoopResult]: For program point L489(lines 489 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,391 INFO L274 CegarLoopResult]: For program point L490(lines 490 501) no Hoare annotation was computed. [2020-10-19 23:15:03,391 INFO L274 CegarLoopResult]: For program point L424(lines 424 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,391 INFO L274 CegarLoopResult]: For program point L490-2(lines 490 501) no Hoare annotation was computed. [2020-10-19 23:15:03,391 INFO L274 CegarLoopResult]: For program point L160-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,391 INFO L274 CegarLoopResult]: For program point L94-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,391 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:15:03,391 INFO L274 CegarLoopResult]: For program point L28-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,391 INFO L274 CegarLoopResult]: For program point L1019(lines 1019 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,392 INFO L274 CegarLoopResult]: For program point L623(lines 623 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,392 INFO L274 CegarLoopResult]: For program point L557(lines 557 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,392 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-10-19 23:15:03,392 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-10-19 23:15:03,392 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-19 23:15:03,392 INFO L274 CegarLoopResult]: For program point L888(lines 888 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,392 INFO L274 CegarLoopResult]: For program point L690(lines 690 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,392 INFO L274 CegarLoopResult]: For program point L360(lines 360 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,392 INFO L274 CegarLoopResult]: For program point L955(lines 955 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,393 INFO L274 CegarLoopResult]: For program point L229(lines 229 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,393 INFO L274 CegarLoopResult]: For program point L163-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,393 INFO L274 CegarLoopResult]: For program point L97-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,393 INFO L274 CegarLoopResult]: For program point L31-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,393 INFO L274 CegarLoopResult]: For program point L824(lines 824 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,393 INFO L274 CegarLoopResult]: For program point L296(lines 296 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,393 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-10-19 23:15:03,393 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-10-19 23:15:03,393 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-19 23:15:03,393 INFO L274 CegarLoopResult]: For program point L759(lines 759 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,393 INFO L274 CegarLoopResult]: For program point L760(lines 760 770) no Hoare annotation was computed. [2020-10-19 23:15:03,394 INFO L274 CegarLoopResult]: For program point L760-2(lines 760 770) no Hoare annotation was computed. [2020-10-19 23:15:03,394 INFO L274 CegarLoopResult]: For program point L166-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,394 INFO L274 CegarLoopResult]: For program point L100-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,394 INFO L274 CegarLoopResult]: For program point L34-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:15:03,394 INFO L274 CegarLoopResult]: For program point L827(lines 827 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,394 INFO L274 CegarLoopResult]: For program point L563(lines 563 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,394 INFO L274 CegarLoopResult]: For program point L431(lines 431 1026) no Hoare annotation was computed. [2020-10-19 23:15:03,394 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-10-19 23:15:03,394 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-10-19 23:15:03,394 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-10-19 23:15:03,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:15:03 BoogieIcfgContainer [2020-10-19 23:15:03,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:15:03,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:15:03,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:15:03,429 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:15:03,430 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:14:04" (3/4) ... [2020-10-19 23:15:03,433 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:15:03,490 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:15:03,494 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:15:03,496 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:15:03,498 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:15:03,685 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:15:03,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:15:03,687 INFO L168 Benchmark]: Toolchain (without parser) took 62526.36 ms. Allocated memory was 41.9 MB in the beginning and 773.3 MB in the end (delta: 731.4 MB). Free memory was 17.6 MB in the beginning and 425.9 MB in the end (delta: -408.3 MB). Peak memory consumption was 323.0 MB. Max. memory is 14.3 GB. [2020-10-19 23:15:03,687 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 32.0 MB. Free memory was 8.9 MB in the beginning and 8.8 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-19 23:15:03,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 897.85 ms. Allocated memory was 41.9 MB in the beginning and 45.1 MB in the end (delta: 3.1 MB). Free memory was 16.7 MB in the beginning and 14.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 14.3 GB. [2020-10-19 23:15:03,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 187.30 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 14.0 MB in the beginning and 15.6 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:15:03,689 INFO L168 Benchmark]: Boogie Preprocessor took 375.08 ms. Allocated memory was 47.2 MB in the beginning and 58.2 MB in the end (delta: 11.0 MB). Free memory was 15.6 MB in the beginning and 28.2 MB in the end (delta: -12.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 14.3 GB. [2020-10-19 23:15:03,689 INFO L168 Benchmark]: RCFGBuilder took 2260.48 ms. Allocated memory was 58.2 MB in the beginning and 96.5 MB in the end (delta: 38.3 MB). Free memory was 27.9 MB in the beginning and 65.5 MB in the end (delta: -37.6 MB). Peak memory consumption was 42.9 MB. Max. memory is 14.3 GB. [2020-10-19 23:15:03,690 INFO L168 Benchmark]: TraceAbstraction took 58536.34 ms. Allocated memory was 96.5 MB in the beginning and 773.3 MB in the end (delta: 676.9 MB). Free memory was 64.8 MB in the beginning and 461.5 MB in the end (delta: -396.7 MB). Peak memory consumption was 665.0 MB. Max. memory is 14.3 GB. [2020-10-19 23:15:03,690 INFO L168 Benchmark]: Witness Printer took 257.14 ms. Allocated memory is still 773.3 MB. Free memory was 461.5 MB in the beginning and 425.9 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:15:03,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 32.0 MB. Free memory was 8.9 MB in the beginning and 8.8 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 897.85 ms. Allocated memory was 41.9 MB in the beginning and 45.1 MB in the end (delta: 3.1 MB). Free memory was 16.7 MB in the beginning and 14.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 187.30 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 14.0 MB in the beginning and 15.6 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 375.08 ms. Allocated memory was 47.2 MB in the beginning and 58.2 MB in the end (delta: 11.0 MB). Free memory was 15.6 MB in the beginning and 28.2 MB in the end (delta: -12.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 2260.48 ms. Allocated memory was 58.2 MB in the beginning and 96.5 MB in the end (delta: 38.3 MB). Free memory was 27.9 MB in the beginning and 65.5 MB in the end (delta: -37.6 MB). Peak memory consumption was 42.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 58536.34 ms. Allocated memory was 96.5 MB in the beginning and 773.3 MB in the end (delta: 676.9 MB). Free memory was 64.8 MB in the beginning and 461.5 MB in the end (delta: -396.7 MB). Peak memory consumption was 665.0 MB. Max. memory is 14.3 GB. * Witness Printer took 257.14 ms. Allocated memory is still 773.3 MB. Free memory was 461.5 MB in the beginning and 425.9 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 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: 24]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a29 <= 275 && a4 == 0) && a25 == 13) && a23 + 43 <= 0) || ((a25 <= 10 && a29 <= 245) && a4 == 1)) || (((a4 == 0 && a25 == 12) && a29 <= 599998) && a23 <= 244)) || ((a25 == 12 && a4 == 1) && a23 <= 244)) || (((a29 <= 384312 && a4 == 0) && a25 <= 9) && a23 + 43 <= 0)) || (((a4 == 0 && a25 == 13) && a29 + 59274 <= 0) && a23 <= 244)) || (((a25 == 11 && a4 == 0) && a23 + 43 <= 0) && a29 <= 599998)) || ((a29 + 59274 <= 0 && a25 == 12) && a4 == 1)) || (((a29 <= 384312 && 306 < a23) && a25 == 12) && a4 == 1)) || ((a25 == 11 && a29 <= 130) && a23 + 43 <= 0)) || (((a29 <= 275 && a25 == 11) && a4 == 0) && a23 <= 244)) || (a25 == 11 && a4 == 1)) || ((a29 <= 275 && a4 == 0) && a25 == 12)) || (((a4 == 0 && a25 == 10) && a29 <= 220) && a23 <= 244)) || (((a25 <= 10 && 381712 <= a29) && a29 <= 599998) && a4 == 1)) || ((306 < a23 && a25 == 10) && a4 == 1)) || (((a4 == 0 && a25 <= 9) && a29 <= 220) && a23 <= 244)) || ((a25 <= 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || (a25 <= 9 && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || ((a4 == 0 && a25 == 10) && a29 <= 130)) || ((a29 <= 384312 && a25 == 13) && a4 == 1)) || ((a25 == 12 && a23 + 43 <= 0) && a29 <= 220) - InvariantResult [Line: 1030]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1036]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a29 <= 275 && a4 == 0) && a25 == 13) && a23 + 43 <= 0) || ((a25 <= 10 && a29 <= 245) && a4 == 1)) || (((a4 == 0 && a25 == 12) && a29 <= 599998) && a23 <= 244)) || ((a25 == 12 && a4 == 1) && a23 <= 244)) || (((a29 <= 384312 && a4 == 0) && a25 <= 9) && a23 + 43 <= 0)) || (((a4 == 0 && a25 == 13) && a29 + 59274 <= 0) && a23 <= 244)) || (((a25 == 11 && a4 == 0) && a23 + 43 <= 0) && a29 <= 599998)) || ((a29 + 59274 <= 0 && a25 == 12) && a4 == 1)) || (((a29 <= 384312 && 306 < a23) && a25 == 12) && a4 == 1)) || ((a25 == 11 && a29 <= 130) && a23 + 43 <= 0)) || (((a29 <= 275 && a25 == 11) && a4 == 0) && a23 <= 244)) || (a25 == 11 && a4 == 1)) || ((a29 <= 275 && a4 == 0) && a25 == 12)) || (((a4 == 0 && a25 == 10) && a29 <= 220) && a23 <= 244)) || (((a25 <= 10 && 381712 <= a29) && a29 <= 599998) && a4 == 1)) || ((306 < a23 && a25 == 10) && a4 == 1)) || (((a4 == 0 && a25 <= 9) && a29 <= 220) && a23 <= 244)) || ((a25 <= 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || (a25 <= 9 && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || ((a4 == 0 && a25 == 10) && a29 <= 130)) || ((a29 <= 384312 && a25 == 13) && a4 == 1)) || ((a25 == 12 && a23 + 43 <= 0) && a29 <= 220) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 52.0s, OverallIterations: 24, TraceHistogramMax: 8, AutomataDifference: 38.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4345 SDtfs, 4537 SDslu, 694 SDs, 0 SdLazy, 18095 SolverSat, 2437 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17790occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.2s AutomataMinimizationTime, 24 MinimizatonAttempts, 27790 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 211 NumberOfFragments, 551 HoareAnnotationTreeSize, 3 FomulaSimplifications, 91336 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 53054 FormulaSimplificationTreeSizeReductionInter, 5.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 8378 NumberOfCodeBlocks, 8378 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 8354 ConstructedInterpolants, 0 QuantifiedInterpolants, 8216608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 12087/12087 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...