./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label35.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_label35.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 db0055f73706f9147022072c975f230c52565114 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:13:08,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:13:08,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:13:08,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:13:08,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:13:08,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:13:08,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:13:08,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:13:08,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:13:08,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:13:08,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:13:08,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:13:08,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:13:08,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:13:08,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:13:08,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:13:08,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:13:08,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:13:08,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:13:08,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:13:08,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:13:08,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:13:08,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:13:08,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:13:08,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:13:08,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:13:08,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:13:08,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:13:08,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:13:08,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:13:08,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:13:08,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:13:08,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:13:08,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:13:08,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:13:08,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:13:08,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:13:08,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:13:08,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:13:08,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:13:08,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:13:08,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:13:08,889 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:13:08,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:13:08,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:13:08,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:13:08,892 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:13:08,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:13:08,893 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:13:08,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:13:08,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:13:08,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:13:08,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:13:08,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:13:08,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:13:08,904 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:13:08,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:13:08,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:13:08,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:13:08,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:13:08,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:13:08,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:13:08,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:13:08,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:13:08,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:13:08,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:13:08,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:13:08,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:13:08,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:13:08,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:13:08,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:13:08,907 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 -> db0055f73706f9147022072c975f230c52565114 [2020-10-19 23:13:09,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:13:09,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:13:09,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:13:09,139 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:13:09,139 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:13:09,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label35.c [2020-10-19 23:13:09,202 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e073bcc4/e5aca1082fa4494c849bce1f2fec28d4/FLAG32a996239 [2020-10-19 23:13:09,803 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:13:09,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label35.c [2020-10-19 23:13:09,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e073bcc4/e5aca1082fa4494c849bce1f2fec28d4/FLAG32a996239 [2020-10-19 23:13:09,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e073bcc4/e5aca1082fa4494c849bce1f2fec28d4 [2020-10-19 23:13:09,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:13:09,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:13:09,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:13:09,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:13:09,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:13:09,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:13:09" (1/1) ... [2020-10-19 23:13:09,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b8d117f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:09, skipping insertion in model container [2020-10-19 23:13:09,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:13:09" (1/1) ... [2020-10-19 23:13:09,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:13:10,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:13:10,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:13:10,571 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:13:10,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:13:10,730 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:13:10,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:10 WrapperNode [2020-10-19 23:13:10,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:13:10,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:13:10,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:13:10,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:13:10,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:10" (1/1) ... [2020-10-19 23:13:10,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:10" (1/1) ... [2020-10-19 23:13:10,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:13:10,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:13:10,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:13:10,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:13:10,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:10" (1/1) ... [2020-10-19 23:13:10,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:10" (1/1) ... [2020-10-19 23:13:10,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:10" (1/1) ... [2020-10-19 23:13:10,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:10" (1/1) ... [2020-10-19 23:13:11,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:10" (1/1) ... [2020-10-19 23:13:11,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:10" (1/1) ... [2020-10-19 23:13:11,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:10" (1/1) ... [2020-10-19 23:13:11,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:13:11,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:13:11,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:13:11,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:13:11,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:10" (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 23:13:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:13:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:13:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:13:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:13:13,399 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:13:13,400 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:13:13,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:13:13 BoogieIcfgContainer [2020-10-19 23:13:13,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:13:13,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:13:13,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:13:13,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:13:13,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:13:09" (1/3) ... [2020-10-19 23:13:13,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f6e014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:13:13, skipping insertion in model container [2020-10-19 23:13:13,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:13:10" (2/3) ... [2020-10-19 23:13:13,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f6e014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:13:13, skipping insertion in model container [2020-10-19 23:13:13,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:13:13" (3/3) ... [2020-10-19 23:13:13,412 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label35.c [2020-10-19 23:13:13,425 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:13:13,434 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:13:13,446 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:13:13,475 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:13:13,476 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:13:13,476 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:13:13,476 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:13:13,479 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:13:13,480 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:13:13,480 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:13:13,481 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:13:13,520 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-10-19 23:13:13,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-19 23:13:13,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:13,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:13:13,535 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:13,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:13,541 INFO L82 PathProgramCache]: Analyzing trace with hash -2074400678, now seen corresponding path program 1 times [2020-10-19 23:13:13,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:13,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553213008] [2020-10-19 23:13:13,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:13,872 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 23:13:13,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553213008] [2020-10-19 23:13:13,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:13,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:13:13,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072594955] [2020-10-19 23:13:13,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:13:13,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:13,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:13:13,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:13:13,901 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-10-19 23:13:15,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:15,513 INFO L93 Difference]: Finished difference Result 762 states and 1346 transitions. [2020-10-19 23:13:15,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:13:15,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-10-19 23:13:15,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:15,534 INFO L225 Difference]: With dead ends: 762 [2020-10-19 23:13:15,534 INFO L226 Difference]: Without dead ends: 413 [2020-10-19 23:13:15,540 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 23:13:15,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-10-19 23:13:15,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2020-10-19 23:13:15,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-10-19 23:13:15,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2020-10-19 23:13:15,634 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 58 [2020-10-19 23:13:15,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:15,635 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2020-10-19 23:13:15,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:13:15,636 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2020-10-19 23:13:15,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-19 23:13:15,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:15,648 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:13:15,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:13:15,648 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:15,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:15,649 INFO L82 PathProgramCache]: Analyzing trace with hash 207715250, now seen corresponding path program 1 times [2020-10-19 23:13:15,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:15,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562747502] [2020-10-19 23:13:15,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:13:15,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562747502] [2020-10-19 23:13:15,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:15,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:13:15,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485181522] [2020-10-19 23:13:15,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:13:15,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:15,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:13:15,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:13:15,859 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand 3 states. [2020-10-19 23:13:17,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:17,064 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2020-10-19 23:13:17,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:13:17,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-10-19 23:13:17,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:17,071 INFO L225 Difference]: With dead ends: 1211 [2020-10-19 23:13:17,071 INFO L226 Difference]: Without dead ends: 800 [2020-10-19 23:13:17,074 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 23:13:17,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-10-19 23:13:17,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2020-10-19 23:13:17,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-10-19 23:13:17,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1084 transitions. [2020-10-19 23:13:17,110 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1084 transitions. Word has length 126 [2020-10-19 23:13:17,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:17,111 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1084 transitions. [2020-10-19 23:13:17,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:13:17,111 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1084 transitions. [2020-10-19 23:13:17,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-19 23:13:17,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:17,114 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:13:17,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:13:17,115 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:17,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:17,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1180402314, now seen corresponding path program 1 times [2020-10-19 23:13:17,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:17,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339668271] [2020-10-19 23:13:17,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:13:17,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339668271] [2020-10-19 23:13:17,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:17,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:13:17,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257018785] [2020-10-19 23:13:17,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:13:17,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:17,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:13:17,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:13:17,269 INFO L87 Difference]: Start difference. First operand 789 states and 1084 transitions. Second operand 3 states. [2020-10-19 23:13:18,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:18,455 INFO L93 Difference]: Finished difference Result 2314 states and 3184 transitions. [2020-10-19 23:13:18,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:13:18,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-10-19 23:13:18,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:18,466 INFO L225 Difference]: With dead ends: 2314 [2020-10-19 23:13:18,467 INFO L226 Difference]: Without dead ends: 1527 [2020-10-19 23:13:18,469 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 23:13:18,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-10-19 23:13:18,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2020-10-19 23:13:18,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-10-19 23:13:18,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1857 transitions. [2020-10-19 23:13:18,517 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1857 transitions. Word has length 127 [2020-10-19 23:13:18,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:18,518 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 1857 transitions. [2020-10-19 23:13:18,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:13:18,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1857 transitions. [2020-10-19 23:13:18,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-19 23:13:18,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:18,523 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:13:18,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:13:18,523 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:18,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:18,524 INFO L82 PathProgramCache]: Analyzing trace with hash 521599633, now seen corresponding path program 1 times [2020-10-19 23:13:18,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:18,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051613901] [2020-10-19 23:13:18,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:13:18,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051613901] [2020-10-19 23:13:18,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:18,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:13:18,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678806244] [2020-10-19 23:13:18,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:13:18,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:18,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:13:18,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:13:18,720 INFO L87 Difference]: Start difference. First operand 1526 states and 1857 transitions. Second operand 3 states. [2020-10-19 23:13:19,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:19,998 INFO L93 Difference]: Finished difference Result 3614 states and 4471 transitions. [2020-10-19 23:13:19,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:13:20,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2020-10-19 23:13:20,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:20,015 INFO L225 Difference]: With dead ends: 3614 [2020-10-19 23:13:20,016 INFO L226 Difference]: Without dead ends: 2274 [2020-10-19 23:13:20,018 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 23:13:20,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2020-10-19 23:13:20,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1897. [2020-10-19 23:13:20,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1897 states. [2020-10-19 23:13:20,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2306 transitions. [2020-10-19 23:13:20,069 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2306 transitions. Word has length 185 [2020-10-19 23:13:20,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:20,070 INFO L481 AbstractCegarLoop]: Abstraction has 1897 states and 2306 transitions. [2020-10-19 23:13:20,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:13:20,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2306 transitions. [2020-10-19 23:13:20,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-19 23:13:20,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:20,076 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:13:20,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:13:20,077 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:20,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:20,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1672205402, now seen corresponding path program 1 times [2020-10-19 23:13:20,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:20,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438072935] [2020-10-19 23:13:20,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:20,465 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-19 23:13:20,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438072935] [2020-10-19 23:13:20,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:20,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:13:20,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080399199] [2020-10-19 23:13:20,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:13:20,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:20,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:13:20,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:13:20,470 INFO L87 Difference]: Start difference. First operand 1897 states and 2306 transitions. Second operand 3 states. [2020-10-19 23:13:21,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:21,921 INFO L93 Difference]: Finished difference Result 4354 states and 5296 transitions. [2020-10-19 23:13:21,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:13:21,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-10-19 23:13:21,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:21,936 INFO L225 Difference]: With dead ends: 4354 [2020-10-19 23:13:21,937 INFO L226 Difference]: Without dead ends: 2275 [2020-10-19 23:13:21,940 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 23:13:21,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2020-10-19 23:13:21,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2265. [2020-10-19 23:13:21,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2265 states. [2020-10-19 23:13:21,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 2748 transitions. [2020-10-19 23:13:21,987 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 2748 transitions. Word has length 239 [2020-10-19 23:13:21,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:21,988 INFO L481 AbstractCegarLoop]: Abstraction has 2265 states and 2748 transitions. [2020-10-19 23:13:21,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:13:21,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 2748 transitions. [2020-10-19 23:13:21,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-19 23:13:21,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:21,994 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:13:21,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 23:13:21,995 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:21,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:21,995 INFO L82 PathProgramCache]: Analyzing trace with hash 205958505, now seen corresponding path program 1 times [2020-10-19 23:13:21,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:21,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103744909] [2020-10-19 23:13:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:22,217 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-19 23:13:22,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103744909] [2020-10-19 23:13:22,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:22,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:13:22,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276718685] [2020-10-19 23:13:22,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:13:22,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:22,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:13:22,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:13:22,220 INFO L87 Difference]: Start difference. First operand 2265 states and 2748 transitions. Second operand 3 states. [2020-10-19 23:13:23,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:23,437 INFO L93 Difference]: Finished difference Result 5087 states and 6238 transitions. [2020-10-19 23:13:23,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:13:23,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-10-19 23:13:23,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:23,453 INFO L225 Difference]: With dead ends: 5087 [2020-10-19 23:13:23,453 INFO L226 Difference]: Without dead ends: 2824 [2020-10-19 23:13:23,457 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 23:13:23,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2020-10-19 23:13:23,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2633. [2020-10-19 23:13:23,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2633 states. [2020-10-19 23:13:23,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 3193 transitions. [2020-10-19 23:13:23,511 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 3193 transitions. Word has length 240 [2020-10-19 23:13:23,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:23,512 INFO L481 AbstractCegarLoop]: Abstraction has 2633 states and 3193 transitions. [2020-10-19 23:13:23,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:13:23,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 3193 transitions. [2020-10-19 23:13:23,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-19 23:13:23,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:23,519 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:13:23,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 23:13:23,520 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:23,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:23,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1428673655, now seen corresponding path program 1 times [2020-10-19 23:13:23,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:23,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535419786] [2020-10-19 23:13:23,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:23,773 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:13:23,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535419786] [2020-10-19 23:13:23,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:23,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:13:23,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523627758] [2020-10-19 23:13:23,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:13:23,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:23,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:13:23,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:13:23,776 INFO L87 Difference]: Start difference. First operand 2633 states and 3193 transitions. Second operand 4 states. [2020-10-19 23:13:25,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:25,885 INFO L93 Difference]: Finished difference Result 8420 states and 10435 transitions. [2020-10-19 23:13:25,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:13:25,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 260 [2020-10-19 23:13:25,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:25,912 INFO L225 Difference]: With dead ends: 8420 [2020-10-19 23:13:25,912 INFO L226 Difference]: Without dead ends: 5789 [2020-10-19 23:13:25,917 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 23:13:25,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5789 states. [2020-10-19 23:13:26,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5789 to 5418. [2020-10-19 23:13:26,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5418 states. [2020-10-19 23:13:26,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 6489 transitions. [2020-10-19 23:13:26,052 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 6489 transitions. Word has length 260 [2020-10-19 23:13:26,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:26,053 INFO L481 AbstractCegarLoop]: Abstraction has 5418 states and 6489 transitions. [2020-10-19 23:13:26,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:13:26,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 6489 transitions. [2020-10-19 23:13:26,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-19 23:13:26,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:26,063 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:13:26,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:13:26,063 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:26,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:26,064 INFO L82 PathProgramCache]: Analyzing trace with hash -76396994, now seen corresponding path program 1 times [2020-10-19 23:13:26,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:26,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123815826] [2020-10-19 23:13:26,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:13:26,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123815826] [2020-10-19 23:13:26,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:26,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:13:26,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367262031] [2020-10-19 23:13:26,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:13:26,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:26,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:13:26,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:13:26,372 INFO L87 Difference]: Start difference. First operand 5418 states and 6489 transitions. Second operand 4 states. [2020-10-19 23:13:28,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:28,384 INFO L93 Difference]: Finished difference Result 14344 states and 17467 transitions. [2020-10-19 23:13:28,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:13:28,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 270 [2020-10-19 23:13:28,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:28,431 INFO L225 Difference]: With dead ends: 14344 [2020-10-19 23:13:28,431 INFO L226 Difference]: Without dead ends: 8928 [2020-10-19 23:13:28,441 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 23:13:28,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8928 states. [2020-10-19 23:13:28,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8928 to 8551. [2020-10-19 23:13:28,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8551 states. [2020-10-19 23:13:28,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8551 states to 8551 states and 10279 transitions. [2020-10-19 23:13:28,636 INFO L78 Accepts]: Start accepts. Automaton has 8551 states and 10279 transitions. Word has length 270 [2020-10-19 23:13:28,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:28,637 INFO L481 AbstractCegarLoop]: Abstraction has 8551 states and 10279 transitions. [2020-10-19 23:13:28,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:13:28,637 INFO L276 IsEmpty]: Start isEmpty. Operand 8551 states and 10279 transitions. [2020-10-19 23:13:28,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-19 23:13:28,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:28,645 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:13:28,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:13:28,646 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:28,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:28,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1715265399, now seen corresponding path program 1 times [2020-10-19 23:13:28,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:28,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588812837] [2020-10-19 23:13:28,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:13:29,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588812837] [2020-10-19 23:13:29,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:29,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:13:29,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615914348] [2020-10-19 23:13:29,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:13:29,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:29,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:13:29,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:13:29,107 INFO L87 Difference]: Start difference. First operand 8551 states and 10279 transitions. Second operand 3 states. [2020-10-19 23:13:30,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:30,367 INFO L93 Difference]: Finished difference Result 20820 states and 25202 transitions. [2020-10-19 23:13:30,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:13:30,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2020-10-19 23:13:30,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:30,408 INFO L225 Difference]: With dead ends: 20820 [2020-10-19 23:13:30,408 INFO L226 Difference]: Without dead ends: 12271 [2020-10-19 23:13:30,420 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 23:13:30,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12271 states. [2020-10-19 23:13:30,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12271 to 12267. [2020-10-19 23:13:30,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12267 states. [2020-10-19 23:13:30,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12267 states to 12267 states and 14623 transitions. [2020-10-19 23:13:30,639 INFO L78 Accepts]: Start accepts. Automaton has 12267 states and 14623 transitions. Word has length 270 [2020-10-19 23:13:30,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:30,639 INFO L481 AbstractCegarLoop]: Abstraction has 12267 states and 14623 transitions. [2020-10-19 23:13:30,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:13:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 12267 states and 14623 transitions. [2020-10-19 23:13:30,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-19 23:13:30,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:30,648 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:13:30,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 23:13:30,649 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:30,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:30,649 INFO L82 PathProgramCache]: Analyzing trace with hash 487217074, now seen corresponding path program 1 times [2020-10-19 23:13:30,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:30,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22625559] [2020-10-19 23:13:30,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:31,012 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 23 proven. 88 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-19 23:13:31,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22625559] [2020-10-19 23:13:31,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844180514] [2020-10-19 23:13:31,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:13:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:31,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:13:31,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:13:31,300 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-19 23:13:31,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:13:31,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 23:13:31,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838597377] [2020-10-19 23:13:31,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:13:31,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:31,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:13:31,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:13:31,346 INFO L87 Difference]: Start difference. First operand 12267 states and 14623 transitions. Second operand 3 states. [2020-10-19 23:13:32,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:32,826 INFO L93 Difference]: Finished difference Result 29315 states and 35139 transitions. [2020-10-19 23:13:32,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:13:32,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2020-10-19 23:13:32,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:32,865 INFO L225 Difference]: With dead ends: 29315 [2020-10-19 23:13:32,866 INFO L226 Difference]: Without dead ends: 16866 [2020-10-19 23:13:32,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:13:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16866 states. [2020-10-19 23:13:33,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16866 to 16126. [2020-10-19 23:13:33,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16126 states. [2020-10-19 23:13:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16126 states to 16126 states and 18909 transitions. [2020-10-19 23:13:33,748 INFO L78 Accepts]: Start accepts. Automaton has 16126 states and 18909 transitions. Word has length 272 [2020-10-19 23:13:33,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:33,749 INFO L481 AbstractCegarLoop]: Abstraction has 16126 states and 18909 transitions. [2020-10-19 23:13:33,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:13:33,749 INFO L276 IsEmpty]: Start isEmpty. Operand 16126 states and 18909 transitions. [2020-10-19 23:13:33,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-19 23:13:33,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:33,758 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:13:33,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-19 23:13:33,972 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:33,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:33,973 INFO L82 PathProgramCache]: Analyzing trace with hash 709544077, now seen corresponding path program 1 times [2020-10-19 23:13:33,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:33,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319900607] [2020-10-19 23:13:33,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:34,148 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-19 23:13:34,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319900607] [2020-10-19 23:13:34,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:34,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:13:34,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419355859] [2020-10-19 23:13:34,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:13:34,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:34,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:13:34,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:13:34,151 INFO L87 Difference]: Start difference. First operand 16126 states and 18909 transitions. Second operand 3 states. [2020-10-19 23:13:35,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:35,674 INFO L93 Difference]: Finished difference Result 32260 states and 37836 transitions. [2020-10-19 23:13:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:13:35,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2020-10-19 23:13:35,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:35,700 INFO L225 Difference]: With dead ends: 32260 [2020-10-19 23:13:35,701 INFO L226 Difference]: Without dead ends: 16136 [2020-10-19 23:13:35,719 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 23:13:35,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16136 states. [2020-10-19 23:13:35,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16136 to 16125. [2020-10-19 23:13:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16125 states. [2020-10-19 23:13:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16125 states to 16125 states and 18433 transitions. [2020-10-19 23:13:35,983 INFO L78 Accepts]: Start accepts. Automaton has 16125 states and 18433 transitions. Word has length 277 [2020-10-19 23:13:35,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:35,984 INFO L481 AbstractCegarLoop]: Abstraction has 16125 states and 18433 transitions. [2020-10-19 23:13:35,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:13:35,984 INFO L276 IsEmpty]: Start isEmpty. Operand 16125 states and 18433 transitions. [2020-10-19 23:13:35,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-19 23:13:35,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:35,994 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:13:35,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 23:13:35,994 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:35,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:35,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1239383884, now seen corresponding path program 1 times [2020-10-19 23:13:35,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:35,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758301773] [2020-10-19 23:13:35,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:36,295 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:13:36,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758301773] [2020-10-19 23:13:36,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:36,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:13:36,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648058450] [2020-10-19 23:13:36,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:13:36,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:36,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:13:36,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:13:36,298 INFO L87 Difference]: Start difference. First operand 16125 states and 18433 transitions. Second operand 4 states. [2020-10-19 23:13:38,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:38,624 INFO L93 Difference]: Finished difference Result 30005 states and 34343 transitions. [2020-10-19 23:13:38,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:13:38,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 291 [2020-10-19 23:13:38,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:38,649 INFO L225 Difference]: With dead ends: 30005 [2020-10-19 23:13:38,649 INFO L226 Difference]: Without dead ends: 13514 [2020-10-19 23:13:38,666 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 23:13:38,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13514 states. [2020-10-19 23:13:39,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13514 to 10925. [2020-10-19 23:13:39,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10925 states. [2020-10-19 23:13:39,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10925 states to 10925 states and 12148 transitions. [2020-10-19 23:13:39,206 INFO L78 Accepts]: Start accepts. Automaton has 10925 states and 12148 transitions. Word has length 291 [2020-10-19 23:13:39,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:39,207 INFO L481 AbstractCegarLoop]: Abstraction has 10925 states and 12148 transitions. [2020-10-19 23:13:39,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:13:39,208 INFO L276 IsEmpty]: Start isEmpty. Operand 10925 states and 12148 transitions. [2020-10-19 23:13:39,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-10-19 23:13:39,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:39,220 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 23:13:39,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 23:13:39,220 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:39,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:39,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1261395041, now seen corresponding path program 1 times [2020-10-19 23:13:39,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:39,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664668729] [2020-10-19 23:13:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:39,439 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2020-10-19 23:13:39,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664668729] [2020-10-19 23:13:39,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:39,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:13:39,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447478785] [2020-10-19 23:13:39,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:13:39,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:39,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:13:39,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:13:39,450 INFO L87 Difference]: Start difference. First operand 10925 states and 12148 transitions. Second operand 3 states. [2020-10-19 23:13:40,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:40,647 INFO L93 Difference]: Finished difference Result 23871 states and 26540 transitions. [2020-10-19 23:13:40,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:13:40,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2020-10-19 23:13:40,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:40,669 INFO L225 Difference]: With dead ends: 23871 [2020-10-19 23:13:40,670 INFO L226 Difference]: Without dead ends: 12948 [2020-10-19 23:13:40,678 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 23:13:40,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12948 states. [2020-10-19 23:13:40,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12948 to 8343. [2020-10-19 23:13:40,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8343 states. [2020-10-19 23:13:40,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8343 states to 8343 states and 9312 transitions. [2020-10-19 23:13:40,888 INFO L78 Accepts]: Start accepts. Automaton has 8343 states and 9312 transitions. Word has length 325 [2020-10-19 23:13:40,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:40,889 INFO L481 AbstractCegarLoop]: Abstraction has 8343 states and 9312 transitions. [2020-10-19 23:13:40,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:13:40,889 INFO L276 IsEmpty]: Start isEmpty. Operand 8343 states and 9312 transitions. [2020-10-19 23:13:40,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-10-19 23:13:40,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:40,903 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 23:13:40,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 23:13:40,903 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:40,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:40,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1853480627, now seen corresponding path program 1 times [2020-10-19 23:13:40,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:40,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407958350] [2020-10-19 23:13:40,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:41,728 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 267 proven. 74 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-19 23:13:41,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407958350] [2020-10-19 23:13:41,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852925536] [2020-10-19 23:13:41,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:13:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:41,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 23:13:41,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:13:42,083 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-19 23:13:42,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:13:42,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 23:13:42,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969665029] [2020-10-19 23:13:42,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:13:42,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:42,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:13:42,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-19 23:13:42,086 INFO L87 Difference]: Start difference. First operand 8343 states and 9312 transitions. Second operand 4 states. [2020-10-19 23:13:43,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:43,670 INFO L93 Difference]: Finished difference Result 19635 states and 21862 transitions. [2020-10-19 23:13:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:13:43,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 345 [2020-10-19 23:13:43,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:43,685 INFO L225 Difference]: With dead ends: 19635 [2020-10-19 23:13:43,685 INFO L226 Difference]: Without dead ends: 11294 [2020-10-19 23:13:43,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-19 23:13:43,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11294 states. [2020-10-19 23:13:43,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11294 to 11108. [2020-10-19 23:13:43,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11108 states. [2020-10-19 23:13:43,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11108 states to 11108 states and 12348 transitions. [2020-10-19 23:13:43,858 INFO L78 Accepts]: Start accepts. Automaton has 11108 states and 12348 transitions. Word has length 345 [2020-10-19 23:13:43,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:43,859 INFO L481 AbstractCegarLoop]: Abstraction has 11108 states and 12348 transitions. [2020-10-19 23:13:43,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:13:43,860 INFO L276 IsEmpty]: Start isEmpty. Operand 11108 states and 12348 transitions. [2020-10-19 23:13:43,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-10-19 23:13:43,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:43,881 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-19 23:13:44,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-10-19 23:13:44,097 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:44,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:44,097 INFO L82 PathProgramCache]: Analyzing trace with hash 170136398, now seen corresponding path program 1 times [2020-10-19 23:13:44,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:44,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424506458] [2020-10-19 23:13:44,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-19 23:13:44,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424506458] [2020-10-19 23:13:44,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:44,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:13:44,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791330754] [2020-10-19 23:13:44,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:13:44,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:44,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:13:44,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:13:44,404 INFO L87 Difference]: Start difference. First operand 11108 states and 12348 transitions. Second operand 4 states. [2020-10-19 23:13:46,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:46,526 INFO L93 Difference]: Finished difference Result 26277 states and 29190 transitions. [2020-10-19 23:13:46,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:13:46,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 367 [2020-10-19 23:13:46,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:46,541 INFO L225 Difference]: With dead ends: 26277 [2020-10-19 23:13:46,541 INFO L226 Difference]: Without dead ends: 13693 [2020-10-19 23:13:46,552 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 23:13:46,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13693 states. [2020-10-19 23:13:46,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13693 to 10365. [2020-10-19 23:13:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10365 states. [2020-10-19 23:13:46,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10365 states to 10365 states and 11425 transitions. [2020-10-19 23:13:46,694 INFO L78 Accepts]: Start accepts. Automaton has 10365 states and 11425 transitions. Word has length 367 [2020-10-19 23:13:46,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:46,695 INFO L481 AbstractCegarLoop]: Abstraction has 10365 states and 11425 transitions. [2020-10-19 23:13:46,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:13:46,696 INFO L276 IsEmpty]: Start isEmpty. Operand 10365 states and 11425 transitions. [2020-10-19 23:13:46,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-10-19 23:13:46,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:46,706 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:13:46,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 23:13:46,706 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:46,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:46,707 INFO L82 PathProgramCache]: Analyzing trace with hash -444647589, now seen corresponding path program 1 times [2020-10-19 23:13:46,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:46,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500724011] [2020-10-19 23:13:46,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:47,074 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-19 23:13:47,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500724011] [2020-10-19 23:13:47,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:47,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:13:47,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028442660] [2020-10-19 23:13:47,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:13:47,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:47,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:13:47,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:13:47,077 INFO L87 Difference]: Start difference. First operand 10365 states and 11425 transitions. Second operand 4 states. [2020-10-19 23:13:49,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:49,067 INFO L93 Difference]: Finished difference Result 27559 states and 30332 transitions. [2020-10-19 23:13:49,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:13:49,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 395 [2020-10-19 23:13:49,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:49,083 INFO L225 Difference]: With dead ends: 27559 [2020-10-19 23:13:49,084 INFO L226 Difference]: Without dead ends: 17196 [2020-10-19 23:13:49,092 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 23:13:49,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17196 states. [2020-10-19 23:13:49,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17196 to 16079. [2020-10-19 23:13:49,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16079 states. [2020-10-19 23:13:49,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16079 states to 16079 states and 17682 transitions. [2020-10-19 23:13:49,373 INFO L78 Accepts]: Start accepts. Automaton has 16079 states and 17682 transitions. Word has length 395 [2020-10-19 23:13:49,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:49,374 INFO L481 AbstractCegarLoop]: Abstraction has 16079 states and 17682 transitions. [2020-10-19 23:13:49,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:13:49,375 INFO L276 IsEmpty]: Start isEmpty. Operand 16079 states and 17682 transitions. [2020-10-19 23:13:49,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2020-10-19 23:13:49,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:49,386 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 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] [2020-10-19 23:13:49,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 23:13:49,387 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:49,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:49,387 INFO L82 PathProgramCache]: Analyzing trace with hash -454976631, now seen corresponding path program 1 times [2020-10-19 23:13:49,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:49,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047256260] [2020-10-19 23:13:49,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:49,774 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 426 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-19 23:13:49,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047256260] [2020-10-19 23:13:49,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:13:49,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:13:49,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162700981] [2020-10-19 23:13:49,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:13:49,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:49,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:13:49,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:13:49,777 INFO L87 Difference]: Start difference. First operand 16079 states and 17682 transitions. Second operand 4 states. [2020-10-19 23:13:51,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:51,731 INFO L93 Difference]: Finished difference Result 31245 states and 34381 transitions. [2020-10-19 23:13:51,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:13:51,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 415 [2020-10-19 23:13:51,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:51,752 INFO L225 Difference]: With dead ends: 31245 [2020-10-19 23:13:51,752 INFO L226 Difference]: Without dead ends: 17380 [2020-10-19 23:13:51,763 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 23:13:51,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17380 states. [2020-10-19 23:13:51,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17380 to 16263. [2020-10-19 23:13:51,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16263 states. [2020-10-19 23:13:52,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16263 states to 16263 states and 17879 transitions. [2020-10-19 23:13:52,012 INFO L78 Accepts]: Start accepts. Automaton has 16263 states and 17879 transitions. Word has length 415 [2020-10-19 23:13:52,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:52,013 INFO L481 AbstractCegarLoop]: Abstraction has 16263 states and 17879 transitions. [2020-10-19 23:13:52,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:13:52,013 INFO L276 IsEmpty]: Start isEmpty. Operand 16263 states and 17879 transitions. [2020-10-19 23:13:52,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2020-10-19 23:13:52,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:52,027 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, 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, 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] [2020-10-19 23:13:52,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-19 23:13:52,027 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:52,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:52,028 INFO L82 PathProgramCache]: Analyzing trace with hash -278235386, now seen corresponding path program 1 times [2020-10-19 23:13:52,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:52,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65332318] [2020-10-19 23:13:52,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:52,823 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 412 proven. 341 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:13:52,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65332318] [2020-10-19 23:13:52,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866672334] [2020-10-19 23:13:52,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:13:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:53,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 23:13:53,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:13:53,229 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 485 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-19 23:13:53,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:13:53,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-10-19 23:13:53,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079175214] [2020-10-19 23:13:53,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:13:53,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:53,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:13:53,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:13:53,231 INFO L87 Difference]: Start difference. First operand 16263 states and 17879 transitions. Second operand 3 states. [2020-10-19 23:13:54,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:13:54,575 INFO L93 Difference]: Finished difference Result 36025 states and 39655 transitions. [2020-10-19 23:13:54,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:13:54,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 462 [2020-10-19 23:13:54,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:13:54,595 INFO L225 Difference]: With dead ends: 36025 [2020-10-19 23:13:54,595 INFO L226 Difference]: Without dead ends: 20132 [2020-10-19 23:13:54,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:13:54,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20132 states. [2020-10-19 23:13:54,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20132 to 16081. [2020-10-19 23:13:54,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16081 states. [2020-10-19 23:13:54,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16081 states to 16081 states and 17534 transitions. [2020-10-19 23:13:54,785 INFO L78 Accepts]: Start accepts. Automaton has 16081 states and 17534 transitions. Word has length 462 [2020-10-19 23:13:54,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:13:54,786 INFO L481 AbstractCegarLoop]: Abstraction has 16081 states and 17534 transitions. [2020-10-19 23:13:54,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:13:54,786 INFO L276 IsEmpty]: Start isEmpty. Operand 16081 states and 17534 transitions. [2020-10-19 23:13:54,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2020-10-19 23:13:54,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:13:54,806 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:13:55,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-19 23:13:55,018 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:13:55,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:13:55,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1803230976, now seen corresponding path program 1 times [2020-10-19 23:13:55,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:13:55,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698556960] [2020-10-19 23:13:55,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:13:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:56,136 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 154 proven. 346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:13:56,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698556960] [2020-10-19 23:13:56,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713999110] [2020-10-19 23:13:56,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:13:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:13:56,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 23:13:56,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:13:56,455 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2020-10-19 23:13:56,456 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 23:13:56,468 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:13:56,496 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:13:56,540 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:13:56,554 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:13:57,436 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 154 proven. 346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:13:57,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 23:13:57,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-19 23:13:57,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421462094] [2020-10-19 23:13:57,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 23:13:57,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:13:57,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 23:13:57,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-19 23:13:57,440 INFO L87 Difference]: Start difference. First operand 16081 states and 17534 transitions. Second operand 9 states. [2020-10-19 23:14:03,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:03,860 INFO L93 Difference]: Finished difference Result 34373 states and 37475 transitions. [2020-10-19 23:14:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 23:14:03,860 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 470 [2020-10-19 23:14:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:03,878 INFO L225 Difference]: With dead ends: 34373 [2020-10-19 23:14:03,878 INFO L226 Difference]: Without dead ends: 20506 [2020-10-19 23:14:03,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 466 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-19 23:14:03,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20506 states. [2020-10-19 23:14:04,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20506 to 17185. [2020-10-19 23:14:04,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17185 states. [2020-10-19 23:14:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17185 states to 17185 states and 18694 transitions. [2020-10-19 23:14:04,074 INFO L78 Accepts]: Start accepts. Automaton has 17185 states and 18694 transitions. Word has length 470 [2020-10-19 23:14:04,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:04,075 INFO L481 AbstractCegarLoop]: Abstraction has 17185 states and 18694 transitions. [2020-10-19 23:14:04,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 23:14:04,075 INFO L276 IsEmpty]: Start isEmpty. Operand 17185 states and 18694 transitions. [2020-10-19 23:14:04,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2020-10-19 23:14:04,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:04,090 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, 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, 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, 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 23:14:04,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:14:04,306 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:04,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:04,307 INFO L82 PathProgramCache]: Analyzing trace with hash -485286015, now seen corresponding path program 1 times [2020-10-19 23:14:04,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:04,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924408047] [2020-10-19 23:14:04,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:04,926 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 492 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-10-19 23:14:04,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924408047] [2020-10-19 23:14:04,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:04,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:14:04,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48945332] [2020-10-19 23:14:04,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:04,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:04,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:04,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:04,930 INFO L87 Difference]: Start difference. First operand 17185 states and 18694 transitions. Second operand 4 states. [2020-10-19 23:14:07,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:07,124 INFO L93 Difference]: Finished difference Result 36215 states and 39484 transitions. [2020-10-19 23:14:07,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:07,126 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 521 [2020-10-19 23:14:07,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:07,146 INFO L225 Difference]: With dead ends: 36215 [2020-10-19 23:14:07,146 INFO L226 Difference]: Without dead ends: 21428 [2020-10-19 23:14:07,155 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 23:14:07,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21428 states. [2020-10-19 23:14:07,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21428 to 18841. [2020-10-19 23:14:07,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18841 states. [2020-10-19 23:14:07,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18841 states to 18841 states and 20547 transitions. [2020-10-19 23:14:07,329 INFO L78 Accepts]: Start accepts. Automaton has 18841 states and 20547 transitions. Word has length 521 [2020-10-19 23:14:07,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:07,330 INFO L481 AbstractCegarLoop]: Abstraction has 18841 states and 20547 transitions. [2020-10-19 23:14:07,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:07,330 INFO L276 IsEmpty]: Start isEmpty. Operand 18841 states and 20547 transitions. [2020-10-19 23:14:07,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2020-10-19 23:14:07,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:07,342 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, 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, 4, 4, 4, 4, 4, 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] [2020-10-19 23:14:07,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-19 23:14:07,343 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:07,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:07,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1937805046, now seen corresponding path program 2 times [2020-10-19 23:14:07,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:07,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366844021] [2020-10-19 23:14:07,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 911 proven. 92 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2020-10-19 23:14:08,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366844021] [2020-10-19 23:14:08,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843442156] [2020-10-19 23:14:08,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:14:08,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 23:14:08,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 23:14:08,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 23:14:08,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:14:08,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 887 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-10-19 23:14:08,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:14:08,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2020-10-19 23:14:08,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794048173] [2020-10-19 23:14:08,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:08,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:08,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:08,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-19 23:14:08,672 INFO L87 Difference]: Start difference. First operand 18841 states and 20547 transitions. Second operand 4 states. [2020-10-19 23:14:10,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:10,387 INFO L93 Difference]: Finished difference Result 37493 states and 40884 transitions. [2020-10-19 23:14:10,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:10,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 547 [2020-10-19 23:14:10,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:10,408 INFO L225 Difference]: With dead ends: 37493 [2020-10-19 23:14:10,408 INFO L226 Difference]: Without dead ends: 21050 [2020-10-19 23:14:10,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-19 23:14:10,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21050 states. [2020-10-19 23:14:10,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21050 to 12577. [2020-10-19 23:14:10,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12577 states. [2020-10-19 23:14:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12577 states to 12577 states and 13699 transitions. [2020-10-19 23:14:10,578 INFO L78 Accepts]: Start accepts. Automaton has 12577 states and 13699 transitions. Word has length 547 [2020-10-19 23:14:10,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:10,578 INFO L481 AbstractCegarLoop]: Abstraction has 12577 states and 13699 transitions. [2020-10-19 23:14:10,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:10,579 INFO L276 IsEmpty]: Start isEmpty. Operand 12577 states and 13699 transitions. [2020-10-19 23:14:10,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2020-10-19 23:14:10,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:10,589 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, 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, 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, 2, 2, 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] [2020-10-19 23:14:10,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-10-19 23:14:10,798 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:10,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:10,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1047473608, now seen corresponding path program 1 times [2020-10-19 23:14:10,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:10,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759429331] [2020-10-19 23:14:10,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:11,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1119 backedges. 623 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2020-10-19 23:14:11,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759429331] [2020-10-19 23:14:11,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:11,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:11,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391118223] [2020-10-19 23:14:11,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:11,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:11,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:11,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:11,338 INFO L87 Difference]: Start difference. First operand 12577 states and 13699 transitions. Second operand 3 states. [2020-10-19 23:14:12,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:12,725 INFO L93 Difference]: Finished difference Result 25535 states and 27796 transitions. [2020-10-19 23:14:12,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:12,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 558 [2020-10-19 23:14:12,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:12,740 INFO L225 Difference]: With dead ends: 25535 [2020-10-19 23:14:12,740 INFO L226 Difference]: Without dead ends: 12959 [2020-10-19 23:14:12,748 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 23:14:12,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12959 states. [2020-10-19 23:14:12,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12959 to 11840. [2020-10-19 23:14:12,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11840 states. [2020-10-19 23:14:12,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11840 states to 11840 states and 12783 transitions. [2020-10-19 23:14:12,854 INFO L78 Accepts]: Start accepts. Automaton has 11840 states and 12783 transitions. Word has length 558 [2020-10-19 23:14:12,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:12,854 INFO L481 AbstractCegarLoop]: Abstraction has 11840 states and 12783 transitions. [2020-10-19 23:14:12,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:12,854 INFO L276 IsEmpty]: Start isEmpty. Operand 11840 states and 12783 transitions. [2020-10-19 23:14:12,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2020-10-19 23:14:12,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:12,867 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:12,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-19 23:14:12,867 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:12,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:12,868 INFO L82 PathProgramCache]: Analyzing trace with hash 592417714, now seen corresponding path program 1 times [2020-10-19 23:14:12,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:12,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407603813] [2020-10-19 23:14:12,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:13,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 662 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2020-10-19 23:14:13,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407603813] [2020-10-19 23:14:13,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:13,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:13,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300023801] [2020-10-19 23:14:13,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:13,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:13,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:13,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:13,285 INFO L87 Difference]: Start difference. First operand 11840 states and 12783 transitions. Second operand 3 states. [2020-10-19 23:14:14,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:14,435 INFO L93 Difference]: Finished difference Result 24593 states and 26510 transitions. [2020-10-19 23:14:14,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:14,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 658 [2020-10-19 23:14:14,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:14,441 INFO L225 Difference]: With dead ends: 24593 [2020-10-19 23:14:14,441 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:14:14,450 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 23:14:14,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:14:14,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:14:14,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:14:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:14:14,451 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 658 [2020-10-19 23:14:14,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:14,452 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:14:14,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:14:14,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:14:14,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-19 23:14:14,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:14:15,322 WARN L193 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 520 DAG size of output: 370 [2020-10-19 23:14:15,896 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 520 DAG size of output: 370 [2020-10-19 23:14:18,377 WARN L193 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 347 DAG size of output: 88 [2020-10-19 23:14:20,856 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 347 DAG size of output: 88 [2020-10-19 23:14:20,860 INFO L274 CegarLoopResult]: For program point L960(lines 960 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,860 INFO L274 CegarLoopResult]: For program point L696(lines 696 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,860 INFO L274 CegarLoopResult]: For program point L630(lines 630 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,861 INFO L270 CegarLoopResult]: At program point L1027(lines 24 1028) the Hoare annotation is: (let ((.cse10 (<= 307 ~a23~0)) (.cse12 (<= ~a29~0 220)) (.cse9 (<= ~a29~0 277)) (.cse16 (<= 312 ~a23~0)) (.cse7 (= ~a25~0 13)) (.cse13 (= ~a25~0 10)) (.cse15 (<= ~a29~0 140)) (.cse4 (= ~a25~0 11)) (.cse11 (= ~a25~0 12)) (.cse2 (<= ~a23~0 262)) (.cse14 (= ~a25~0 9)) (.cse6 (= ~a4~0 0)) (.cse8 (<= (+ ~a23~0 43) 0)) (.cse0 (<= ~a29~0 275)) (.cse1 (<= ~a25~0 10)) (.cse5 (< 245 ~a29~0)) (.cse3 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse6 .cse2) (and .cse7 (<= ~a29~0 206675) .cse3) (and .cse4 (<= (+ ~a29~0 275802) 0) .cse8) (and .cse1 .cse9 .cse5 .cse10 .cse3) (and .cse10 .cse11 .cse12 .cse3) (and .cse6 .cse13 .cse8) (and .cse7 .cse2 .cse3) (and .cse11 .cse2 .cse3) (and .cse13 .cse10 .cse3) (and .cse14 .cse6 .cse15 .cse2) (and .cse0 .cse13 .cse3) (and .cse4 .cse6 .cse8) (and .cse14 .cse3) (and .cse1 .cse8 .cse3) (and (<= (+ ~a29~0 193244) 0) .cse16 .cse1 .cse3) (and .cse11 .cse8 .cse12) (and .cse9 .cse5 .cse11 .cse3) (and (<= ~a29~0 206678) (< 306 ~a23~0) .cse7 .cse3) (and .cse0 .cse16 .cse11 .cse3) (and .cse6 .cse7 .cse2) (and .cse14 (<= (+ ~a29~0 275824) 0) .cse8) (and .cse6 .cse13 .cse15) (and .cse4 .cse3) (and .cse0 .cse6 .cse11) (and .cse6 .cse11 .cse2) (and .cse14 .cse6 .cse8) (and .cse0 .cse1 .cse5 .cse3))) [2020-10-19 23:14:20,861 INFO L274 CegarLoopResult]: For program point L895(lines 895 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,861 INFO L274 CegarLoopResult]: For program point L697(lines 697 707) no Hoare annotation was computed. [2020-10-19 23:14:20,861 INFO L274 CegarLoopResult]: For program point L697-2(lines 697 707) no Hoare annotation was computed. [2020-10-19 23:14:20,861 INFO L274 CegarLoopResult]: For program point L367(lines 367 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,861 INFO L274 CegarLoopResult]: For program point L301(lines 301 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,861 INFO L274 CegarLoopResult]: For program point L235(lines 235 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,861 INFO L274 CegarLoopResult]: For program point L169-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,861 INFO L274 CegarLoopResult]: For program point L103-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,861 INFO L274 CegarLoopResult]: For program point L37-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,861 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L277 CegarLoopResult]: At program point L1030(lines 1030 1046) the Hoare annotation is: true [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L568(lines 568 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L502(lines 502 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L172-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L106-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L40-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L965(lines 965 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L833(lines 833 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L900(lines 900 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L438(lines 438 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,862 INFO L274 CegarLoopResult]: For program point L372(lines 372 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,863 INFO L274 CegarLoopResult]: For program point L637(lines 637 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,863 INFO L274 CegarLoopResult]: For program point L307(lines 307 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,863 INFO L274 CegarLoopResult]: For program point L175-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,863 INFO L274 CegarLoopResult]: For program point L109-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,863 INFO L274 CegarLoopResult]: For program point L43-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,863 INFO L274 CegarLoopResult]: For program point L242(lines 242 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,867 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-10-19 23:14:20,868 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-10-19 23:14:20,868 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-10-19 23:14:20,868 INFO L274 CegarLoopResult]: For program point L771(lines 771 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,869 INFO L270 CegarLoopResult]: At program point L1036-2(lines 1036 1045) the Hoare annotation is: (let ((.cse10 (<= 307 ~a23~0)) (.cse12 (<= ~a29~0 220)) (.cse9 (<= ~a29~0 277)) (.cse16 (<= 312 ~a23~0)) (.cse7 (= ~a25~0 13)) (.cse13 (= ~a25~0 10)) (.cse15 (<= ~a29~0 140)) (.cse4 (= ~a25~0 11)) (.cse11 (= ~a25~0 12)) (.cse2 (<= ~a23~0 262)) (.cse14 (= ~a25~0 9)) (.cse6 (= ~a4~0 0)) (.cse8 (<= (+ ~a23~0 43) 0)) (.cse0 (<= ~a29~0 275)) (.cse1 (<= ~a25~0 10)) (.cse5 (< 245 ~a29~0)) (.cse3 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse6 .cse2) (and .cse7 (<= ~a29~0 206675) .cse3) (and .cse4 (<= (+ ~a29~0 275802) 0) .cse8) (and .cse1 .cse9 .cse5 .cse10 .cse3) (and .cse10 .cse11 .cse12 .cse3) (and .cse6 .cse13 .cse8) (and .cse7 .cse2 .cse3) (and .cse11 .cse2 .cse3) (and .cse13 .cse10 .cse3) (and .cse14 .cse6 .cse15 .cse2) (and .cse0 .cse13 .cse3) (and .cse4 .cse6 .cse8) (and .cse14 .cse3) (and .cse1 .cse8 .cse3) (and (<= (+ ~a29~0 193244) 0) .cse16 .cse1 .cse3) (and .cse11 .cse8 .cse12) (and .cse9 .cse5 .cse11 .cse3) (and (<= ~a29~0 206678) (< 306 ~a23~0) .cse7 .cse3) (and .cse0 .cse16 .cse11 .cse3) (and .cse6 .cse7 .cse2) (and .cse14 (<= (+ ~a29~0 275824) 0) .cse8) (and .cse6 .cse13 .cse15) (and .cse4 .cse3) (and .cse0 .cse6 .cse11) (and .cse6 .cse11 .cse2) (and .cse14 .cse6 .cse8) (and .cse0 .cse1 .cse5 .cse3))) [2020-10-19 23:14:20,869 INFO L274 CegarLoopResult]: For program point L838(lines 838 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,869 INFO L274 CegarLoopResult]: For program point L574(lines 574 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,869 INFO L274 CegarLoopResult]: For program point L178-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,869 INFO L274 CegarLoopResult]: For program point L112-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,869 INFO L274 CegarLoopResult]: For program point L46-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,870 INFO L274 CegarLoopResult]: For program point L971(lines 971 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,870 INFO L274 CegarLoopResult]: For program point L905(lines 905 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,871 INFO L274 CegarLoopResult]: For program point L509(lines 509 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,871 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-10-19 23:14:20,871 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-10-19 23:14:20,871 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-10-19 23:14:20,871 INFO L274 CegarLoopResult]: For program point L972(lines 972 982) no Hoare annotation was computed. [2020-10-19 23:14:20,872 INFO L274 CegarLoopResult]: For program point L906(lines 906 916) no Hoare annotation was computed. [2020-10-19 23:14:20,872 INFO L274 CegarLoopResult]: For program point L972-2(lines 972 982) no Hoare annotation was computed. [2020-10-19 23:14:20,872 INFO L274 CegarLoopResult]: For program point L906-2(lines 906 916) no Hoare annotation was computed. [2020-10-19 23:14:20,872 INFO L274 CegarLoopResult]: For program point L708(lines 708 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,872 INFO L274 CegarLoopResult]: For program point L312(lines 312 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,872 INFO L274 CegarLoopResult]: For program point L577(lines 577 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,873 INFO L274 CegarLoopResult]: For program point L445(lines 445 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,873 INFO L274 CegarLoopResult]: For program point L379(lines 379 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,873 INFO L274 CegarLoopResult]: For program point L181-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,873 INFO L274 CegarLoopResult]: For program point L115-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,873 INFO L274 CegarLoopResult]: For program point L49-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,873 INFO L274 CegarLoopResult]: For program point L776(lines 776 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,874 INFO L274 CegarLoopResult]: For program point L644(lines 644 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,874 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-10-19 23:14:20,874 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-10-19 23:14:20,874 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-10-19 23:14:20,874 INFO L274 CegarLoopResult]: For program point L1041(line 1041) no Hoare annotation was computed. [2020-10-19 23:14:20,874 INFO L274 CegarLoopResult]: For program point L843(lines 843 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,874 INFO L274 CegarLoopResult]: For program point L249(lines 249 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,875 INFO L274 CegarLoopResult]: For program point L184-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,875 INFO L274 CegarLoopResult]: For program point L118-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,875 INFO L274 CegarLoopResult]: For program point L52-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,875 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-10-19 23:14:20,875 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-10-19 23:14:20,875 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-10-19 23:14:20,876 INFO L274 CegarLoopResult]: For program point L714(lines 714 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,876 INFO L274 CegarLoopResult]: For program point L516(lines 516 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,876 INFO L274 CegarLoopResult]: For program point L649(lines 649 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,876 INFO L274 CegarLoopResult]: For program point L583(lines 583 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,876 INFO L274 CegarLoopResult]: For program point L517(lines 517 527) no Hoare annotation was computed. [2020-10-19 23:14:20,876 INFO L274 CegarLoopResult]: For program point L517-2(lines 517 527) no Hoare annotation was computed. [2020-10-19 23:14:20,877 INFO L274 CegarLoopResult]: For program point L319(lines 319 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,877 INFO L274 CegarLoopResult]: For program point L187-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,877 INFO L274 CegarLoopResult]: For program point L121-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,877 INFO L274 CegarLoopResult]: For program point L55-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,877 INFO L274 CegarLoopResult]: For program point L848(lines 848 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,877 INFO L274 CegarLoopResult]: For program point L782(lines 782 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,878 INFO L274 CegarLoopResult]: For program point L650(lines 650 659) no Hoare annotation was computed. [2020-10-19 23:14:20,878 INFO L274 CegarLoopResult]: For program point L650-2(lines 650 659) no Hoare annotation was computed. [2020-10-19 23:14:20,878 INFO L274 CegarLoopResult]: For program point L452(lines 452 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,878 INFO L274 CegarLoopResult]: For program point L386(lines 386 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,878 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-10-19 23:14:20,878 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-10-19 23:14:20,878 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-10-19 23:14:20,879 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:14:20,879 INFO L274 CegarLoopResult]: For program point L256(lines 256 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,879 INFO L274 CegarLoopResult]: For program point L190-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,879 INFO L274 CegarLoopResult]: For program point L124-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,879 INFO L274 CegarLoopResult]: For program point L58-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,879 INFO L274 CegarLoopResult]: For program point L983(lines 983 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,880 INFO L274 CegarLoopResult]: For program point L917(lines 917 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,880 INFO L274 CegarLoopResult]: For program point L719(lines 719 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,880 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-10-19 23:14:20,880 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-10-19 23:14:20,880 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-10-19 23:14:20,880 INFO L274 CegarLoopResult]: For program point L918(lines 918 928) no Hoare annotation was computed. [2020-10-19 23:14:20,881 INFO L274 CegarLoopResult]: For program point L918-2(lines 918 928) no Hoare annotation was computed. [2020-10-19 23:14:20,881 INFO L274 CegarLoopResult]: For program point L720(lines 720 732) no Hoare annotation was computed. [2020-10-19 23:14:20,881 INFO L274 CegarLoopResult]: For program point L720-2(lines 720 732) no Hoare annotation was computed. [2020-10-19 23:14:20,881 INFO L274 CegarLoopResult]: For program point L588(lines 588 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,881 INFO L274 CegarLoopResult]: For program point L324(lines 324 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,881 INFO L274 CegarLoopResult]: For program point L589(lines 589 599) no Hoare annotation was computed. [2020-10-19 23:14:20,882 INFO L274 CegarLoopResult]: For program point L589-2(lines 589 599) no Hoare annotation was computed. [2020-10-19 23:14:20,882 INFO L274 CegarLoopResult]: For program point L193-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,882 INFO L274 CegarLoopResult]: For program point L127-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,882 INFO L274 CegarLoopResult]: For program point L61-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,882 INFO L274 CegarLoopResult]: For program point L854(lines 854 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,882 INFO L274 CegarLoopResult]: For program point L458(lines 458 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,883 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-10-19 23:14:20,883 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-10-19 23:14:20,883 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-10-19 23:14:20,883 INFO L274 CegarLoopResult]: For program point L789(lines 789 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,883 INFO L274 CegarLoopResult]: For program point L393(lines 393 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,883 INFO L274 CegarLoopResult]: For program point L262(lines 262 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,883 INFO L274 CegarLoopResult]: For program point L196-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,884 INFO L274 CegarLoopResult]: For program point L130-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,884 INFO L274 CegarLoopResult]: For program point L64-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,884 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-10-19 23:14:20,884 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-10-19 23:14:20,884 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-10-19 23:14:20,884 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:14:20,885 INFO L274 CegarLoopResult]: For program point L990(lines 990 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,885 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:14:20,886 INFO L274 CegarLoopResult]: For program point L660(lines 660 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,886 INFO L274 CegarLoopResult]: For program point L528(lines 528 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,886 INFO L274 CegarLoopResult]: For program point L331(lines 331 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,886 INFO L274 CegarLoopResult]: For program point L199-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,886 INFO L274 CegarLoopResult]: For program point L133-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,886 INFO L274 CegarLoopResult]: For program point L67-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,887 INFO L274 CegarLoopResult]: For program point L794(lines 794 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,887 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-10-19 23:14:20,887 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-10-19 23:14:20,887 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-10-19 23:14:20,887 INFO L274 CegarLoopResult]: For program point L861(lines 861 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,887 INFO L274 CegarLoopResult]: For program point L465(lines 465 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,888 INFO L274 CegarLoopResult]: For program point L267(lines 267 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,888 INFO L274 CegarLoopResult]: For program point L400(lines 400 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,888 INFO L274 CegarLoopResult]: For program point L202-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,888 INFO L274 CegarLoopResult]: For program point L136-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,888 INFO L274 CegarLoopResult]: For program point L70-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,888 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:14:20,888 INFO L274 CegarLoopResult]: For program point L995(lines 995 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,889 INFO L274 CegarLoopResult]: For program point L929(lines 929 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,889 INFO L274 CegarLoopResult]: For program point L665(lines 665 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,889 INFO L274 CegarLoopResult]: For program point L533(lines 533 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,889 INFO L274 CegarLoopResult]: For program point L401(lines 401 412) no Hoare annotation was computed. [2020-10-19 23:14:20,890 INFO L274 CegarLoopResult]: For program point L401-2(lines 401 412) no Hoare annotation was computed. [2020-10-19 23:14:20,890 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-10-19 23:14:20,890 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-10-19 23:14:20,890 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-10-19 23:14:20,890 INFO L274 CegarLoopResult]: For program point L600(lines 600 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,890 INFO L274 CegarLoopResult]: For program point L336(lines 336 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,891 INFO L274 CegarLoopResult]: For program point L270(lines 270 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,891 INFO L274 CegarLoopResult]: For program point L733(lines 733 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,891 INFO L274 CegarLoopResult]: For program point L205-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,891 INFO L274 CegarLoopResult]: For program point L139-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,891 INFO L274 CegarLoopResult]: For program point L73-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,891 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-10-19 23:14:20,892 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-10-19 23:14:20,892 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-10-19 23:14:20,892 INFO L274 CegarLoopResult]: For program point L867(lines 867 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,892 INFO L274 CegarLoopResult]: For program point L801(lines 801 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,892 INFO L274 CegarLoopResult]: For program point L934(lines 934 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,892 INFO L274 CegarLoopResult]: For program point L868(lines 868 877) no Hoare annotation was computed. [2020-10-19 23:14:20,893 INFO L274 CegarLoopResult]: For program point L868-2(lines 868 877) no Hoare annotation was computed. [2020-10-19 23:14:20,893 INFO L274 CegarLoopResult]: For program point L472(lines 472 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,893 INFO L274 CegarLoopResult]: For program point L142-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,893 INFO L274 CegarLoopResult]: For program point L76-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,893 INFO L274 CegarLoopResult]: For program point L605(lines 605 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,893 INFO L274 CegarLoopResult]: For program point L539(lines 539 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,893 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-19 23:14:20,894 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-10-19 23:14:20,894 INFO L274 CegarLoopResult]: For program point L1002(lines 1002 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,894 INFO L274 CegarLoopResult]: For program point L672(lines 672 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,894 INFO L274 CegarLoopResult]: For program point L606(lines 606 616) no Hoare annotation was computed. [2020-10-19 23:14:20,894 INFO L274 CegarLoopResult]: For program point L606-2(lines 606 616) no Hoare annotation was computed. [2020-10-19 23:14:20,894 INFO L274 CegarLoopResult]: For program point L342(lines 342 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,895 INFO L274 CegarLoopResult]: For program point L277(lines 277 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,895 INFO L274 CegarLoopResult]: For program point L145-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,895 INFO L274 CegarLoopResult]: For program point L79-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,895 INFO L274 CegarLoopResult]: For program point L806(lines 806 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,895 INFO L274 CegarLoopResult]: For program point L740(lines 740 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,895 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-10-19 23:14:20,896 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-10-19 23:14:20,896 INFO L274 CegarLoopResult]: For program point L807(lines 807 817) no Hoare annotation was computed. [2020-10-19 23:14:20,896 INFO L274 CegarLoopResult]: For program point L807-2(lines 807 817) no Hoare annotation was computed. [2020-10-19 23:14:20,896 INFO L274 CegarLoopResult]: For program point L544(lines 544 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,896 INFO L274 CegarLoopResult]: For program point L148-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,896 INFO L274 CegarLoopResult]: For program point L82-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,896 INFO L274 CegarLoopResult]: For program point L1007(lines 1007 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,897 INFO L274 CegarLoopResult]: For program point L941(lines 941 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,897 INFO L274 CegarLoopResult]: For program point L677(lines 677 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,897 INFO L274 CegarLoopResult]: For program point L479(lines 479 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,897 INFO L274 CegarLoopResult]: For program point L413(lines 413 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,897 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-10-19 23:14:20,897 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-10-19 23:14:20,898 INFO L274 CegarLoopResult]: For program point L942(lines 942 954) no Hoare annotation was computed. [2020-10-19 23:14:20,898 INFO L274 CegarLoopResult]: For program point L942-2(lines 942 954) no Hoare annotation was computed. [2020-10-19 23:14:20,898 INFO L274 CegarLoopResult]: For program point L480(lines 480 488) no Hoare annotation was computed. [2020-10-19 23:14:20,898 INFO L274 CegarLoopResult]: For program point L480-2(lines 480 488) no Hoare annotation was computed. [2020-10-19 23:14:20,898 INFO L274 CegarLoopResult]: For program point L348(lines 348 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,898 INFO L274 CegarLoopResult]: For program point L282(lines 282 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,899 INFO L274 CegarLoopResult]: For program point L216(lines 216 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,899 INFO L274 CegarLoopResult]: For program point L745(lines 745 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,899 INFO L274 CegarLoopResult]: For program point L151-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,899 INFO L274 CegarLoopResult]: For program point L85-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,899 INFO L274 CegarLoopResult]: For program point L878(lines 878 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,899 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:14:20,899 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-10-19 23:14:20,900 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-10-19 23:14:20,900 INFO L274 CegarLoopResult]: For program point L154-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,900 INFO L274 CegarLoopResult]: For program point L88-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,900 INFO L274 CegarLoopResult]: For program point L683(lines 683 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,900 INFO L274 CegarLoopResult]: For program point L617(lines 617 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,900 INFO L274 CegarLoopResult]: For program point L551(lines 551 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,901 INFO L274 CegarLoopResult]: For program point L419(lines 419 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,901 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-10-19 23:14:20,901 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-10-19 23:14:20,901 INFO L274 CegarLoopResult]: For program point L1014(lines 1014 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,901 INFO L274 CegarLoopResult]: For program point L883(lines 883 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,901 INFO L274 CegarLoopResult]: For program point L355(lines 355 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,902 INFO L274 CegarLoopResult]: For program point L289(lines 289 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,902 INFO L274 CegarLoopResult]: For program point L223(lines 223 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,902 INFO L274 CegarLoopResult]: For program point L157-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,902 INFO L274 CegarLoopResult]: For program point L91-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,902 INFO L274 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-10-19 23:14:20,902 INFO L274 CegarLoopResult]: For program point L25-2(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,902 INFO L274 CegarLoopResult]: For program point L818(lines 818 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,903 INFO L274 CegarLoopResult]: For program point L752(lines 752 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,903 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-10-19 23:14:20,903 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-10-19 23:14:20,904 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-10-19 23:14:20,904 INFO L274 CegarLoopResult]: For program point L489(lines 489 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,905 INFO L274 CegarLoopResult]: For program point L490(lines 490 501) no Hoare annotation was computed. [2020-10-19 23:14:20,905 INFO L274 CegarLoopResult]: For program point L424(lines 424 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,905 INFO L274 CegarLoopResult]: For program point L490-2(lines 490 501) no Hoare annotation was computed. [2020-10-19 23:14:20,906 INFO L274 CegarLoopResult]: For program point L160-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,906 INFO L274 CegarLoopResult]: For program point L94-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,906 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:14:20,907 INFO L274 CegarLoopResult]: For program point L28-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,907 INFO L274 CegarLoopResult]: For program point L1019(lines 1019 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,907 INFO L274 CegarLoopResult]: For program point L623(lines 623 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,909 INFO L274 CegarLoopResult]: For program point L557(lines 557 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,910 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-10-19 23:14:20,910 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-10-19 23:14:20,910 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-19 23:14:20,910 INFO L274 CegarLoopResult]: For program point L888(lines 888 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,910 INFO L274 CegarLoopResult]: For program point L690(lines 690 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,910 INFO L274 CegarLoopResult]: For program point L360(lines 360 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,911 INFO L274 CegarLoopResult]: For program point L955(lines 955 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,911 INFO L274 CegarLoopResult]: For program point L229(lines 229 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,911 INFO L274 CegarLoopResult]: For program point L163-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,911 INFO L274 CegarLoopResult]: For program point L97-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,911 INFO L274 CegarLoopResult]: For program point L31-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,912 INFO L274 CegarLoopResult]: For program point L824(lines 824 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,913 INFO L274 CegarLoopResult]: For program point L296(lines 296 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,913 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-10-19 23:14:20,913 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-10-19 23:14:20,913 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-19 23:14:20,913 INFO L274 CegarLoopResult]: For program point L759(lines 759 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,913 INFO L274 CegarLoopResult]: For program point L760(lines 760 770) no Hoare annotation was computed. [2020-10-19 23:14:20,914 INFO L274 CegarLoopResult]: For program point L760-2(lines 760 770) no Hoare annotation was computed. [2020-10-19 23:14:20,914 INFO L274 CegarLoopResult]: For program point L166-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,914 INFO L274 CegarLoopResult]: For program point L100-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,914 INFO L274 CegarLoopResult]: For program point L34-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:20,914 INFO L274 CegarLoopResult]: For program point L827(lines 827 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,914 INFO L274 CegarLoopResult]: For program point L563(lines 563 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,915 INFO L274 CegarLoopResult]: For program point L431(lines 431 1026) no Hoare annotation was computed. [2020-10-19 23:14:20,915 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-10-19 23:14:20,915 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-10-19 23:14:20,915 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-10-19 23:14:20,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:14:20 BoogieIcfgContainer [2020-10-19 23:14:20,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:14:20,977 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:14:20,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:14:20,977 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:14:20,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:13:13" (3/4) ... [2020-10-19 23:14:20,983 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:14:21,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:14:21,044 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:14:21,047 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:14:21,049 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:14:21,279 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:14:21,279 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:14:21,281 INFO L168 Benchmark]: Toolchain (without parser) took 71325.80 ms. Allocated memory was 44.6 MB in the beginning and 841.5 MB in the end (delta: 796.9 MB). Free memory was 24.2 MB in the beginning and 613.0 MB in the end (delta: -588.9 MB). Peak memory consumption was 208.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:21,281 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 34.1 MB. Free memory is still 14.0 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-19 23:14:21,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.54 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 23.2 MB in the beginning and 26.9 MB in the end (delta: -3.7 MB). Peak memory consumption was 20.0 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:21,282 INFO L168 Benchmark]: Boogie Procedure Inliner took 190.80 ms. Allocated memory is still 47.7 MB. Free memory was 26.6 MB in the beginning and 9.9 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:21,282 INFO L168 Benchmark]: Boogie Preprocessor took 341.45 ms. Allocated memory was 47.7 MB in the beginning and 58.7 MB in the end (delta: 11.0 MB). Free memory was 9.9 MB in the beginning and 25.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:21,283 INFO L168 Benchmark]: RCFGBuilder took 2138.46 ms. Allocated memory was 58.7 MB in the beginning and 92.3 MB in the end (delta: 33.6 MB). Free memory was 25.6 MB in the beginning and 34.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 38.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:21,283 INFO L168 Benchmark]: TraceAbstraction took 67572.29 ms. Allocated memory was 92.3 MB in the beginning and 841.5 MB in the end (delta: 749.2 MB). Free memory was 34.5 MB in the beginning and 640.1 MB in the end (delta: -605.6 MB). Peak memory consumption was 669.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:21,284 INFO L168 Benchmark]: Witness Printer took 302.38 ms. Allocated memory is still 841.5 MB. Free memory was 640.1 MB in the beginning and 613.0 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:21,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 34.1 MB. Free memory is still 14.0 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 769.54 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 23.2 MB in the beginning and 26.9 MB in the end (delta: -3.7 MB). Peak memory consumption was 20.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 190.80 ms. Allocated memory is still 47.7 MB. Free memory was 26.6 MB in the beginning and 9.9 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 341.45 ms. Allocated memory was 47.7 MB in the beginning and 58.7 MB in the end (delta: 11.0 MB). Free memory was 9.9 MB in the beginning and 25.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 2138.46 ms. Allocated memory was 58.7 MB in the beginning and 92.3 MB in the end (delta: 33.6 MB). Free memory was 25.6 MB in the beginning and 34.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 38.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 67572.29 ms. Allocated memory was 92.3 MB in the beginning and 841.5 MB in the end (delta: 749.2 MB). Free memory was 34.5 MB in the beginning and 640.1 MB in the end (delta: -605.6 MB). Peak memory consumption was 669.5 MB. Max. memory is 14.3 GB. * Witness Printer took 302.38 ms. Allocated memory is still 841.5 MB. Free memory was 640.1 MB in the beginning and 613.0 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 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 && a25 <= 10) && a23 <= 262) && a4 == 1) || ((((a29 <= 275 && a25 == 11) && 245 < a29) && a4 == 0) && a23 <= 262)) || ((a25 == 13 && a29 <= 206675) && a4 == 1)) || ((a25 == 11 && a29 + 275802 <= 0) && a23 + 43 <= 0)) || ((((a25 <= 10 && a29 <= 277) && 245 < a29) && 307 <= a23) && a4 == 1)) || (((307 <= a23 && a25 == 12) && a29 <= 220) && a4 == 1)) || ((a4 == 0 && a25 == 10) && a23 + 43 <= 0)) || ((a25 == 13 && a23 <= 262) && a4 == 1)) || ((a25 == 12 && a23 <= 262) && a4 == 1)) || ((a25 == 10 && 307 <= a23) && a4 == 1)) || (((a25 == 9 && a4 == 0) && a29 <= 140) && a23 <= 262)) || ((a29 <= 275 && a25 == 10) && a4 == 1)) || ((a25 == 11 && a4 == 0) && a23 + 43 <= 0)) || (a25 == 9 && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || (((a29 + 193244 <= 0 && 312 <= a23) && a25 <= 10) && a4 == 1)) || ((a25 == 12 && a23 + 43 <= 0) && a29 <= 220)) || (((a29 <= 277 && 245 < a29) && a25 == 12) && a4 == 1)) || (((a29 <= 206678 && 306 < a23) && a25 == 13) && a4 == 1)) || (((a29 <= 275 && 312 <= a23) && a25 == 12) && a4 == 1)) || ((a4 == 0 && a25 == 13) && a23 <= 262)) || ((a25 == 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || ((a4 == 0 && a25 == 10) && a29 <= 140)) || (a25 == 11 && a4 == 1)) || ((a29 <= 275 && a4 == 0) && a25 == 12)) || ((a4 == 0 && a25 == 12) && a23 <= 262)) || ((a25 == 9 && a4 == 0) && a23 + 43 <= 0)) || (((a29 <= 275 && a25 <= 10) && 245 < a29) && a4 == 1) - InvariantResult [Line: 1030]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1036]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((a29 <= 275 && a25 <= 10) && a23 <= 262) && a4 == 1) || ((((a29 <= 275 && a25 == 11) && 245 < a29) && a4 == 0) && a23 <= 262)) || ((a25 == 13 && a29 <= 206675) && a4 == 1)) || ((a25 == 11 && a29 + 275802 <= 0) && a23 + 43 <= 0)) || ((((a25 <= 10 && a29 <= 277) && 245 < a29) && 307 <= a23) && a4 == 1)) || (((307 <= a23 && a25 == 12) && a29 <= 220) && a4 == 1)) || ((a4 == 0 && a25 == 10) && a23 + 43 <= 0)) || ((a25 == 13 && a23 <= 262) && a4 == 1)) || ((a25 == 12 && a23 <= 262) && a4 == 1)) || ((a25 == 10 && 307 <= a23) && a4 == 1)) || (((a25 == 9 && a4 == 0) && a29 <= 140) && a23 <= 262)) || ((a29 <= 275 && a25 == 10) && a4 == 1)) || ((a25 == 11 && a4 == 0) && a23 + 43 <= 0)) || (a25 == 9 && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || (((a29 + 193244 <= 0 && 312 <= a23) && a25 <= 10) && a4 == 1)) || ((a25 == 12 && a23 + 43 <= 0) && a29 <= 220)) || (((a29 <= 277 && 245 < a29) && a25 == 12) && a4 == 1)) || (((a29 <= 206678 && 306 < a23) && a25 == 13) && a4 == 1)) || (((a29 <= 275 && 312 <= a23) && a25 == 12) && a4 == 1)) || ((a4 == 0 && a25 == 13) && a23 <= 262)) || ((a25 == 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || ((a4 == 0 && a25 == 10) && a29 <= 140)) || (a25 == 11 && a4 == 1)) || ((a29 <= 275 && a4 == 0) && a25 == 12)) || ((a4 == 0 && a25 == 12) && a23 <= 262)) || ((a25 == 9 && a4 == 0) && a23 + 43 <= 0)) || (((a29 <= 275 && a25 <= 10) && 245 < a29) && a4 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 60.9s, OverallIterations: 23, TraceHistogramMax: 6, AutomataDifference: 42.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4395 SDtfs, 4808 SDslu, 808 SDs, 0 SdLazy, 21730 SolverSat, 2372 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2176 GetRequests, 2117 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18841occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.3s AutomataMinimizationTime, 23 MinimizatonAttempts, 34586 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 171 NumberOfFragments, 663 HoareAnnotationTreeSize, 3 FomulaSimplifications, 109900 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 54336 FormulaSimplificationTreeSizeReductionInter, 4.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 9774 NumberOfCodeBlocks, 9774 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 9746 ConstructedInterpolants, 0 QuantifiedInterpolants, 15978453 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2909 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 28 InterpolantComputations, 22 PerfectInterpolantSequences, 11391/12678 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...