./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.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 4b3c25b2e1855c4c0a30872aa894c42326e9c019 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 22:21:49,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:21:49,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:21:49,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:21:49,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:21:49,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:21:49,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:21:49,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:21:49,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:21:49,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:21:49,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:21:49,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:21:49,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:21:49,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:21:49,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:21:49,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:21:49,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:21:49,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:21:49,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:21:49,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:21:49,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:21:49,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:21:49,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:21:49,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:21:49,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:21:49,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:21:49,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:21:49,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:21:49,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:21:49,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:21:49,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:21:49,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:21:49,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:21:49,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:21:49,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:21:49,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:21:49,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:21:49,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:21:49,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:21:49,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:21:49,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:21:49,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 22:21:49,545 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:21:49,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:21:49,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:21:49,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:21:49,550 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:21:49,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:21:49,551 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:21:49,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 22:21:49,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:21:49,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:21:49,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:21:49,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:21:49,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:21:49,553 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:21:49,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:21:49,554 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:21:49,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:21:49,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:21:49,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:21:49,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:21:49,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:21:49,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:21:49,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:21:49,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:21:49,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:21:49,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 22:21:49,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 22:21:49,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:21:49,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:21:49,558 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b3c25b2e1855c4c0a30872aa894c42326e9c019 [2020-10-25 22:21:50,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:21:50,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:21:50,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:21:50,061 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:21:50,062 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:21:50,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-10-25 22:21:50,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/534453418/f3f17e6f5cdd4331896c783f9ff6ae5f/FLAG8abc4f64f [2020-10-25 22:21:50,736 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:21:50,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-10-25 22:21:50,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/534453418/f3f17e6f5cdd4331896c783f9ff6ae5f/FLAG8abc4f64f [2020-10-25 22:21:51,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/534453418/f3f17e6f5cdd4331896c783f9ff6ae5f [2020-10-25 22:21:51,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:21:51,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:21:51,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:21:51,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:21:51,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:21:51,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:21:51" (1/1) ... [2020-10-25 22:21:51,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@303b6b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51, skipping insertion in model container [2020-10-25 22:21:51,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:21:51" (1/1) ... [2020-10-25 22:21:51,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:21:51,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:21:51,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:21:51,484 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:21:51,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:21:51,582 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:21:51,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51 WrapperNode [2020-10-25 22:21:51,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:21:51,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:21:51,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:21:51,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:21:51,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51" (1/1) ... [2020-10-25 22:21:51,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51" (1/1) ... [2020-10-25 22:21:51,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:21:51,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:21:51,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:21:51,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:21:51,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51" (1/1) ... [2020-10-25 22:21:51,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51" (1/1) ... [2020-10-25 22:21:51,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51" (1/1) ... [2020-10-25 22:21:51,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51" (1/1) ... [2020-10-25 22:21:51,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51" (1/1) ... [2020-10-25 22:21:51,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51" (1/1) ... [2020-10-25 22:21:51,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51" (1/1) ... [2020-10-25 22:21:51,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:21:51,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:21:51,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:21:51,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:21:51,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:21:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 22:21:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 22:21:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:21:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:21:52,745 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:21:52,746 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-10-25 22:21:52,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:21:52 BoogieIcfgContainer [2020-10-25 22:21:52,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:21:52,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:21:52,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:21:52,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:21:52,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:21:51" (1/3) ... [2020-10-25 22:21:52,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55198507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:21:52, skipping insertion in model container [2020-10-25 22:21:52,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:51" (2/3) ... [2020-10-25 22:21:52,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55198507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:21:52, skipping insertion in model container [2020-10-25 22:21:52,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:21:52" (3/3) ... [2020-10-25 22:21:52,759 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2020-10-25 22:21:52,779 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:21:52,785 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-25 22:21:52,800 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-25 22:21:52,831 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:21:52,832 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:21:52,832 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:21:52,832 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:21:52,832 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:21:52,832 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:21:52,833 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:21:52,833 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:21:52,857 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2020-10-25 22:21:52,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-25 22:21:52,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:52,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:52,866 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:52,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:52,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1804934597, now seen corresponding path program 1 times [2020-10-25 22:21:52,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:52,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507853105] [2020-10-25 22:21:52,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:53,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:53,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507853105] [2020-10-25 22:21:53,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:53,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 22:21:53,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696753404] [2020-10-25 22:21:53,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 22:21:53,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:53,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 22:21:53,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 22:21:53,142 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 4 states. [2020-10-25 22:21:53,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:53,481 INFO L93 Difference]: Finished difference Result 147 states and 221 transitions. [2020-10-25 22:21:53,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 22:21:53,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-25 22:21:53,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:53,514 INFO L225 Difference]: With dead ends: 147 [2020-10-25 22:21:53,515 INFO L226 Difference]: Without dead ends: 114 [2020-10-25 22:21:53,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:21:53,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-25 22:21:53,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-10-25 22:21:53,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-25 22:21:53,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2020-10-25 22:21:53,607 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 7 [2020-10-25 22:21:53,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:53,607 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2020-10-25 22:21:53,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 22:21:53,608 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2020-10-25 22:21:53,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-25 22:21:53,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:53,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:53,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 22:21:53,611 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:53,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:53,613 INFO L82 PathProgramCache]: Analyzing trace with hash 118403696, now seen corresponding path program 1 times [2020-10-25 22:21:53,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:53,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640091248] [2020-10-25 22:21:53,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:53,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:53,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640091248] [2020-10-25 22:21:53,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:53,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 22:21:53,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613325394] [2020-10-25 22:21:53,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 22:21:53,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:53,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 22:21:53,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:21:53,731 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand 5 states. [2020-10-25 22:21:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:53,998 INFO L93 Difference]: Finished difference Result 117 states and 138 transitions. [2020-10-25 22:21:53,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 22:21:53,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-25 22:21:53,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:54,000 INFO L225 Difference]: With dead ends: 117 [2020-10-25 22:21:54,000 INFO L226 Difference]: Without dead ends: 109 [2020-10-25 22:21:54,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 22:21:54,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-25 22:21:54,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-25 22:21:54,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-25 22:21:54,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2020-10-25 22:21:54,012 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 8 [2020-10-25 22:21:54,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:54,012 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2020-10-25 22:21:54,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 22:21:54,013 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2020-10-25 22:21:54,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 22:21:54,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:54,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:54,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 22:21:54,014 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:54,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:54,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1410106030, now seen corresponding path program 1 times [2020-10-25 22:21:54,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:54,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865540492] [2020-10-25 22:21:54,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:54,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865540492] [2020-10-25 22:21:54,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:54,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 22:21:54,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447941127] [2020-10-25 22:21:54,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 22:21:54,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:54,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 22:21:54,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:21:54,083 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand 5 states. [2020-10-25 22:21:54,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:54,403 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2020-10-25 22:21:54,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 22:21:54,405 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-25 22:21:54,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:54,407 INFO L225 Difference]: With dead ends: 109 [2020-10-25 22:21:54,407 INFO L226 Difference]: Without dead ends: 107 [2020-10-25 22:21:54,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:21:54,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-25 22:21:54,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-25 22:21:54,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-25 22:21:54,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2020-10-25 22:21:54,425 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 11 [2020-10-25 22:21:54,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:54,426 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2020-10-25 22:21:54,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 22:21:54,426 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2020-10-25 22:21:54,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-25 22:21:54,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:54,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:54,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 22:21:54,427 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:54,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:54,430 INFO L82 PathProgramCache]: Analyzing trace with hash 763620047, now seen corresponding path program 1 times [2020-10-25 22:21:54,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:54,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289657087] [2020-10-25 22:21:54,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:54,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:54,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289657087] [2020-10-25 22:21:54,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:54,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 22:21:54,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701679489] [2020-10-25 22:21:54,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 22:21:54,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:54,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 22:21:54,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 22:21:54,497 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand 4 states. [2020-10-25 22:21:54,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:54,686 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2020-10-25 22:21:54,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 22:21:54,686 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-25 22:21:54,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:54,688 INFO L225 Difference]: With dead ends: 107 [2020-10-25 22:21:54,688 INFO L226 Difference]: Without dead ends: 103 [2020-10-25 22:21:54,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:21:54,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-25 22:21:54,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-10-25 22:21:54,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-25 22:21:54,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2020-10-25 22:21:54,698 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 12 [2020-10-25 22:21:54,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:54,698 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2020-10-25 22:21:54,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 22:21:54,698 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2020-10-25 22:21:54,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-25 22:21:54,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:54,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:54,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 22:21:54,700 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:54,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:54,701 INFO L82 PathProgramCache]: Analyzing trace with hash -2078680795, now seen corresponding path program 1 times [2020-10-25 22:21:54,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:54,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233097492] [2020-10-25 22:21:54,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:54,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:54,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233097492] [2020-10-25 22:21:54,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:54,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 22:21:54,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566045959] [2020-10-25 22:21:54,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 22:21:54,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:54,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 22:21:54,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:21:54,763 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand 5 states. [2020-10-25 22:21:55,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:55,068 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2020-10-25 22:21:55,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 22:21:55,069 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-25 22:21:55,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:55,070 INFO L225 Difference]: With dead ends: 121 [2020-10-25 22:21:55,070 INFO L226 Difference]: Without dead ends: 119 [2020-10-25 22:21:55,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:21:55,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-25 22:21:55,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 101. [2020-10-25 22:21:55,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-25 22:21:55,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2020-10-25 22:21:55,082 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 13 [2020-10-25 22:21:55,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:55,083 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2020-10-25 22:21:55,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 22:21:55,083 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2020-10-25 22:21:55,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-25 22:21:55,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:55,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:55,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 22:21:55,085 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:55,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:55,085 INFO L82 PathProgramCache]: Analyzing trace with hash -2076587483, now seen corresponding path program 1 times [2020-10-25 22:21:55,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:55,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240112161] [2020-10-25 22:21:55,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:55,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:55,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240112161] [2020-10-25 22:21:55,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:55,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 22:21:55,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141160583] [2020-10-25 22:21:55,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 22:21:55,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:55,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 22:21:55,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:21:55,143 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand 5 states. [2020-10-25 22:21:55,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:55,409 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2020-10-25 22:21:55,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 22:21:55,410 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-25 22:21:55,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:55,412 INFO L225 Difference]: With dead ends: 101 [2020-10-25 22:21:55,412 INFO L226 Difference]: Without dead ends: 99 [2020-10-25 22:21:55,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:21:55,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-25 22:21:55,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-25 22:21:55,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-25 22:21:55,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2020-10-25 22:21:55,423 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 13 [2020-10-25 22:21:55,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:55,423 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2020-10-25 22:21:55,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 22:21:55,423 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2020-10-25 22:21:55,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-25 22:21:55,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:55,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:55,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 22:21:55,425 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:55,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:55,425 INFO L82 PathProgramCache]: Analyzing trace with hash -12678507, now seen corresponding path program 1 times [2020-10-25 22:21:55,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:55,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410863479] [2020-10-25 22:21:55,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:55,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410863479] [2020-10-25 22:21:55,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:55,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 22:21:55,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206998689] [2020-10-25 22:21:55,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 22:21:55,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:55,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 22:21:55,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:21:55,479 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 5 states. [2020-10-25 22:21:55,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:55,788 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2020-10-25 22:21:55,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 22:21:55,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-25 22:21:55,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:55,789 INFO L225 Difference]: With dead ends: 120 [2020-10-25 22:21:55,789 INFO L226 Difference]: Without dead ends: 118 [2020-10-25 22:21:55,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:21:55,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-25 22:21:55,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 97. [2020-10-25 22:21:55,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-25 22:21:55,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2020-10-25 22:21:55,803 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 14 [2020-10-25 22:21:55,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:55,804 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2020-10-25 22:21:55,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 22:21:55,804 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2020-10-25 22:21:55,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-25 22:21:55,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:55,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:55,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 22:21:55,809 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:55,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:55,810 INFO L82 PathProgramCache]: Analyzing trace with hash -14589102, now seen corresponding path program 1 times [2020-10-25 22:21:55,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:55,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177782434] [2020-10-25 22:21:55,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:56,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:56,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177782434] [2020-10-25 22:21:56,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:56,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-25 22:21:56,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711448352] [2020-10-25 22:21:56,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 22:21:56,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:56,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 22:21:56,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:21:56,051 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand 6 states. [2020-10-25 22:21:56,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:56,350 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2020-10-25 22:21:56,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 22:21:56,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-25 22:21:56,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:56,352 INFO L225 Difference]: With dead ends: 130 [2020-10-25 22:21:56,352 INFO L226 Difference]: Without dead ends: 128 [2020-10-25 22:21:56,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-25 22:21:56,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-25 22:21:56,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 103. [2020-10-25 22:21:56,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-25 22:21:56,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2020-10-25 22:21:56,366 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 14 [2020-10-25 22:21:56,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:56,366 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2020-10-25 22:21:56,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 22:21:56,367 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2020-10-25 22:21:56,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-25 22:21:56,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:56,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:56,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 22:21:56,368 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:56,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:56,369 INFO L82 PathProgramCache]: Analyzing trace with hash 50303638, now seen corresponding path program 1 times [2020-10-25 22:21:56,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:56,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653853500] [2020-10-25 22:21:56,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:56,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:56,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653853500] [2020-10-25 22:21:56,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:56,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-25 22:21:56,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273927917] [2020-10-25 22:21:56,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 22:21:56,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:56,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 22:21:56,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:21:56,565 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 6 states. [2020-10-25 22:21:56,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:56,793 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2020-10-25 22:21:56,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 22:21:56,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-25 22:21:56,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:56,794 INFO L225 Difference]: With dead ends: 113 [2020-10-25 22:21:56,794 INFO L226 Difference]: Without dead ends: 109 [2020-10-25 22:21:56,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-25 22:21:56,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-25 22:21:56,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2020-10-25 22:21:56,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-25 22:21:56,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2020-10-25 22:21:56,801 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 14 [2020-10-25 22:21:56,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:56,801 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2020-10-25 22:21:56,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 22:21:56,802 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2020-10-25 22:21:56,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-25 22:21:56,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:56,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:56,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 22:21:56,807 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:56,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:56,808 INFO L82 PathProgramCache]: Analyzing trace with hash -393027571, now seen corresponding path program 1 times [2020-10-25 22:21:56,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:56,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083816054] [2020-10-25 22:21:56,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:56,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:56,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083816054] [2020-10-25 22:21:56,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:56,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-25 22:21:57,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403104835] [2020-10-25 22:21:57,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 22:21:57,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:57,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 22:21:57,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:21:57,001 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 6 states. [2020-10-25 22:21:57,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:57,342 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2020-10-25 22:21:57,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 22:21:57,347 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-25 22:21:57,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:57,348 INFO L225 Difference]: With dead ends: 131 [2020-10-25 22:21:57,348 INFO L226 Difference]: Without dead ends: 129 [2020-10-25 22:21:57,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-25 22:21:57,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-25 22:21:57,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 107. [2020-10-25 22:21:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-25 22:21:57,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2020-10-25 22:21:57,358 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 15 [2020-10-25 22:21:57,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:57,359 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2020-10-25 22:21:57,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 22:21:57,359 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2020-10-25 22:21:57,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-25 22:21:57,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:57,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:57,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 22:21:57,363 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:57,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:57,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1135035499, now seen corresponding path program 1 times [2020-10-25 22:21:57,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:57,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43803217] [2020-10-25 22:21:57,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:57,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:57,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43803217] [2020-10-25 22:21:57,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:57,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 22:21:57,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004739216] [2020-10-25 22:21:57,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 22:21:57,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:57,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 22:21:57,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 22:21:57,438 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 4 states. [2020-10-25 22:21:57,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:57,538 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2020-10-25 22:21:57,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 22:21:57,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-25 22:21:57,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:57,540 INFO L225 Difference]: With dead ends: 107 [2020-10-25 22:21:57,540 INFO L226 Difference]: Without dead ends: 105 [2020-10-25 22:21:57,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:21:57,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-25 22:21:57,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-10-25 22:21:57,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-25 22:21:57,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2020-10-25 22:21:57,546 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 16 [2020-10-25 22:21:57,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:57,549 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2020-10-25 22:21:57,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 22:21:57,549 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2020-10-25 22:21:57,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 22:21:57,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:57,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:57,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 22:21:57,555 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:57,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:57,556 INFO L82 PathProgramCache]: Analyzing trace with hash -826355977, now seen corresponding path program 1 times [2020-10-25 22:21:57,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:57,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670338581] [2020-10-25 22:21:57,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:57,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:57,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670338581] [2020-10-25 22:21:57,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:57,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 22:21:57,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943567117] [2020-10-25 22:21:57,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 22:21:57,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:57,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 22:21:57,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 22:21:57,603 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 4 states. [2020-10-25 22:21:57,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:57,792 INFO L93 Difference]: Finished difference Result 105 states and 119 transitions. [2020-10-25 22:21:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 22:21:57,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-25 22:21:57,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:57,793 INFO L225 Difference]: With dead ends: 105 [2020-10-25 22:21:57,793 INFO L226 Difference]: Without dead ends: 101 [2020-10-25 22:21:57,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:21:57,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-25 22:21:57,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-10-25 22:21:57,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-25 22:21:57,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-10-25 22:21:57,798 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 17 [2020-10-25 22:21:57,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:57,799 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-10-25 22:21:57,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 22:21:57,799 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-10-25 22:21:57,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-25 22:21:57,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:57,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:57,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-25 22:21:57,800 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:57,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:57,801 INFO L82 PathProgramCache]: Analyzing trace with hash 171645234, now seen corresponding path program 1 times [2020-10-25 22:21:57,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:57,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414694893] [2020-10-25 22:21:57,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:57,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:57,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414694893] [2020-10-25 22:21:57,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:57,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-25 22:21:57,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732108129] [2020-10-25 22:21:57,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 22:21:57,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:57,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 22:21:57,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:21:57,907 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 6 states. [2020-10-25 22:21:58,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:58,227 INFO L93 Difference]: Finished difference Result 117 states and 133 transitions. [2020-10-25 22:21:58,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 22:21:58,227 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-25 22:21:58,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:58,228 INFO L225 Difference]: With dead ends: 117 [2020-10-25 22:21:58,229 INFO L226 Difference]: Without dead ends: 115 [2020-10-25 22:21:58,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-25 22:21:58,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-25 22:21:58,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 96. [2020-10-25 22:21:58,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-25 22:21:58,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-10-25 22:21:58,243 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 18 [2020-10-25 22:21:58,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:58,244 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-10-25 22:21:58,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 22:21:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-10-25 22:21:58,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-25 22:21:58,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:58,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:58,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-25 22:21:58,250 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:58,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:58,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1598213575, now seen corresponding path program 1 times [2020-10-25 22:21:58,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:58,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322344529] [2020-10-25 22:21:58,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:58,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322344529] [2020-10-25 22:21:58,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:58,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-25 22:21:58,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495229522] [2020-10-25 22:21:58,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 22:21:58,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:58,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 22:21:58,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:21:58,363 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 6 states. [2020-10-25 22:21:58,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:58,661 INFO L93 Difference]: Finished difference Result 109 states and 125 transitions. [2020-10-25 22:21:58,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 22:21:58,662 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-25 22:21:58,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:58,663 INFO L225 Difference]: With dead ends: 109 [2020-10-25 22:21:58,663 INFO L226 Difference]: Without dead ends: 107 [2020-10-25 22:21:58,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-25 22:21:58,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-25 22:21:58,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 91. [2020-10-25 22:21:58,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-25 22:21:58,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2020-10-25 22:21:58,679 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 18 [2020-10-25 22:21:58,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:58,679 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2020-10-25 22:21:58,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 22:21:58,680 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2020-10-25 22:21:58,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-25 22:21:58,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:58,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:58,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-25 22:21:58,683 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:58,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:58,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1663106315, now seen corresponding path program 1 times [2020-10-25 22:21:58,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:58,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935930984] [2020-10-25 22:21:58,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:58,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935930984] [2020-10-25 22:21:58,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:58,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-25 22:21:58,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842405165] [2020-10-25 22:21:58,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 22:21:58,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:58,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 22:21:58,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:21:58,783 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand 6 states. [2020-10-25 22:21:59,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:59,069 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2020-10-25 22:21:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 22:21:59,070 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-25 22:21:59,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:59,071 INFO L225 Difference]: With dead ends: 91 [2020-10-25 22:21:59,071 INFO L226 Difference]: Without dead ends: 54 [2020-10-25 22:21:59,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 22:21:59,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-25 22:21:59,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-25 22:21:59,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-25 22:21:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2020-10-25 22:21:59,077 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 18 [2020-10-25 22:21:59,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:59,079 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2020-10-25 22:21:59,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 22:21:59,080 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2020-10-25 22:21:59,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-25 22:21:59,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:59,083 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] [2020-10-25 22:21:59,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-25 22:21:59,084 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:59,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:59,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1909250009, now seen corresponding path program 1 times [2020-10-25 22:21:59,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:59,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375175311] [2020-10-25 22:21:59,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:59,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:59,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375175311] [2020-10-25 22:21:59,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:59,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-25 22:21:59,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382588677] [2020-10-25 22:21:59,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-25 22:21:59,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:59,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-25 22:21:59,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-25 22:21:59,297 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 13 states. [2020-10-25 22:21:59,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:59,497 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2020-10-25 22:21:59,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-25 22:21:59,498 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-10-25 22:21:59,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:59,499 INFO L225 Difference]: With dead ends: 54 [2020-10-25 22:21:59,499 INFO L226 Difference]: Without dead ends: 52 [2020-10-25 22:21:59,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-10-25 22:21:59,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-25 22:21:59,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-25 22:21:59,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-25 22:21:59,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2020-10-25 22:21:59,502 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 44 [2020-10-25 22:21:59,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:59,503 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2020-10-25 22:21:59,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-25 22:21:59,503 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2020-10-25 22:21:59,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-25 22:21:59,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:59,504 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] [2020-10-25 22:21:59,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-25 22:21:59,504 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:59,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:59,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1909269869, now seen corresponding path program 1 times [2020-10-25 22:21:59,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:59,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600995248] [2020-10-25 22:21:59,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:59,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600995248] [2020-10-25 22:21:59,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:59,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-25 22:21:59,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107270947] [2020-10-25 22:21:59,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-25 22:21:59,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:59,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-25 22:21:59,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-25 22:21:59,660 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 13 states. [2020-10-25 22:21:59,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:59,849 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2020-10-25 22:21:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-25 22:21:59,850 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-10-25 22:21:59,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:59,851 INFO L225 Difference]: With dead ends: 59 [2020-10-25 22:21:59,851 INFO L226 Difference]: Without dead ends: 57 [2020-10-25 22:21:59,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-10-25 22:21:59,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-25 22:21:59,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-10-25 22:21:59,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-25 22:21:59,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2020-10-25 22:21:59,855 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 44 [2020-10-25 22:21:59,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:59,855 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2020-10-25 22:21:59,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-25 22:21:59,855 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2020-10-25 22:21:59,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-25 22:21:59,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:59,856 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] [2020-10-25 22:21:59,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-25 22:21:59,856 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:59,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:59,857 INFO L82 PathProgramCache]: Analyzing trace with hash -942785412, now seen corresponding path program 1 times [2020-10-25 22:21:59,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:59,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215689685] [2020-10-25 22:21:59,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:59,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:59,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215689685] [2020-10-25 22:21:59,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:59,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-25 22:21:59,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238083492] [2020-10-25 22:21:59,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-25 22:21:59,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:59,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-25 22:21:59,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-25 22:21:59,998 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 7 states. [2020-10-25 22:22:00,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:22:00,139 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-10-25 22:22:00,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 22:22:00,139 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-10-25 22:22:00,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:22:00,140 INFO L225 Difference]: With dead ends: 50 [2020-10-25 22:22:00,141 INFO L226 Difference]: Without dead ends: 46 [2020-10-25 22:22:00,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 22:22:00,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-25 22:22:00,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-25 22:22:00,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-25 22:22:00,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2020-10-25 22:22:00,143 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 45 [2020-10-25 22:22:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:22:00,144 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2020-10-25 22:22:00,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-25 22:22:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2020-10-25 22:22:00,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-25 22:22:00,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:22:00,145 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] [2020-10-25 22:22:00,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-25 22:22:00,146 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:22:00,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:22:00,146 INFO L82 PathProgramCache]: Analyzing trace with hash -942169732, now seen corresponding path program 1 times [2020-10-25 22:22:00,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:22:00,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971261169] [2020-10-25 22:22:00,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:22:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:22:00,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:22:00,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971261169] [2020-10-25 22:22:00,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:22:00,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-25 22:22:00,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776405357] [2020-10-25 22:22:00,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-25 22:22:00,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:22:00,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-25 22:22:00,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-25 22:22:00,280 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 7 states. [2020-10-25 22:22:00,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:22:00,423 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-10-25 22:22:00,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 22:22:00,423 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-10-25 22:22:00,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:22:00,424 INFO L225 Difference]: With dead ends: 50 [2020-10-25 22:22:00,424 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 22:22:00,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-25 22:22:00,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 22:22:00,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 22:22:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 22:22:00,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 22:22:00,426 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-10-25 22:22:00,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:22:00,427 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 22:22:00,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-25 22:22:00,428 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 22:22:00,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 22:22:00,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-25 22:22:00,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 22:22:00,595 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,596 INFO L274 CegarLoopResult]: For program point L597(lines 597 969) no Hoare annotation was computed. [2020-10-25 22:22:00,596 INFO L274 CegarLoopResult]: For program point L366(lines 366 991) no Hoare annotation was computed. [2020-10-25 22:22:00,596 INFO L274 CegarLoopResult]: For program point L267(lines 267 275) no Hoare annotation was computed. [2020-10-25 22:22:00,596 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,596 INFO L274 CegarLoopResult]: For program point L400(lines 400 424) no Hoare annotation was computed. [2020-10-25 22:22:00,596 INFO L274 CegarLoopResult]: For program point L136(lines 136 242) no Hoare annotation was computed. [2020-10-25 22:22:00,596 INFO L274 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-10-25 22:22:00,596 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,596 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,596 INFO L274 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,597 INFO L274 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,597 INFO L274 CegarLoopResult]: For program point L929(lines 929 941) no Hoare annotation was computed. [2020-10-25 22:22:00,597 INFO L274 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,597 INFO L274 CegarLoopResult]: For program point L4-5(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,598 INFO L274 CegarLoopResult]: For program point L4-6(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,598 INFO L274 CegarLoopResult]: For program point L4-7(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,598 INFO L274 CegarLoopResult]: For program point L4-8(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,598 INFO L274 CegarLoopResult]: For program point L4-9(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,598 INFO L274 CegarLoopResult]: For program point L4-10(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,598 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,598 INFO L274 CegarLoopResult]: For program point L4-11(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,598 INFO L274 CegarLoopResult]: For program point L665(lines 665 963) no Hoare annotation was computed. [2020-10-25 22:22:00,598 INFO L274 CegarLoopResult]: For program point L4-12(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,598 INFO L274 CegarLoopResult]: For program point L4-13(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,599 INFO L274 CegarLoopResult]: For program point L4-14(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,599 INFO L274 CegarLoopResult]: For program point L4-15(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,599 INFO L274 CegarLoopResult]: For program point L4-16(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,599 INFO L274 CegarLoopResult]: For program point L4-17(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,599 INFO L274 CegarLoopResult]: For program point L4-18(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,599 INFO L274 CegarLoopResult]: For program point L434(lines 434 985) no Hoare annotation was computed. [2020-10-25 22:22:00,599 INFO L274 CegarLoopResult]: For program point L4-19(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,599 INFO L274 CegarLoopResult]: For program point L4-20(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,599 INFO L274 CegarLoopResult]: For program point L4-21(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,599 INFO L274 CegarLoopResult]: For program point L4-22(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,600 INFO L274 CegarLoopResult]: For program point L4-23(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,600 INFO L274 CegarLoopResult]: For program point L4-24(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,600 INFO L274 CegarLoopResult]: For program point L4-25(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,600 INFO L274 CegarLoopResult]: For program point L4-26(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,600 INFO L274 CegarLoopResult]: For program point L4-27(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,600 INFO L274 CegarLoopResult]: For program point L4-28(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,600 INFO L274 CegarLoopResult]: For program point L4-29(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,600 INFO L274 CegarLoopResult]: For program point L4-30(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,600 INFO L274 CegarLoopResult]: For program point L4-31(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,600 INFO L274 CegarLoopResult]: For program point L468(lines 468 492) no Hoare annotation was computed. [2020-10-25 22:22:00,600 INFO L274 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-10-25 22:22:00,601 INFO L274 CegarLoopResult]: For program point L72(lines 72 288) no Hoare annotation was computed. [2020-10-25 22:22:00,601 INFO L274 CegarLoopResult]: For program point L733(lines 733 957) no Hoare annotation was computed. [2020-10-25 22:22:00,601 INFO L274 CegarLoopResult]: For program point L502(lines 502 979) no Hoare annotation was computed. [2020-10-25 22:22:00,601 INFO L274 CegarLoopResult]: For program point L205(lines 205 231) no Hoare annotation was computed. [2020-10-25 22:22:00,602 INFO L277 CegarLoopResult]: At program point L932(lines 17 1006) the Hoare annotation is: true [2020-10-25 22:22:00,603 INFO L274 CegarLoopResult]: For program point L866(lines 866 946) no Hoare annotation was computed. [2020-10-25 22:22:00,603 INFO L274 CegarLoopResult]: For program point L536(lines 536 560) no Hoare annotation was computed. [2020-10-25 22:22:00,603 INFO L274 CegarLoopResult]: For program point L801(lines 801 951) no Hoare annotation was computed. [2020-10-25 22:22:00,603 INFO L274 CegarLoopResult]: For program point L570(lines 570 973) no Hoare annotation was computed. [2020-10-25 22:22:00,603 INFO L270 CegarLoopResult]: At program point L868(lines 26 1000) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-10-25 22:22:00,604 INFO L274 CegarLoopResult]: For program point L604(lines 604 628) no Hoare annotation was computed. [2020-10-25 22:22:00,604 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,604 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,604 INFO L274 CegarLoopResult]: For program point L638(lines 638 967) no Hoare annotation was computed. [2020-10-25 22:22:00,604 INFO L274 CegarLoopResult]: For program point L143(lines 143 236) no Hoare annotation was computed. [2020-10-25 22:22:00,604 INFO L274 CegarLoopResult]: For program point L672(lines 672 696) no Hoare annotation was computed. [2020-10-25 22:22:00,605 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,605 INFO L274 CegarLoopResult]: For program point L309(lines 309 995) no Hoare annotation was computed. [2020-10-25 22:22:00,605 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,605 INFO L270 CegarLoopResult]: At program point L904(lines 65 999) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-10-25 22:22:00,605 INFO L274 CegarLoopResult]: For program point L706(lines 706 961) no Hoare annotation was computed. [2020-10-25 22:22:00,606 INFO L274 CegarLoopResult]: For program point L343(lines 343 354) no Hoare annotation was computed. [2020-10-25 22:22:00,606 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,606 INFO L274 CegarLoopResult]: For program point L46(lines 46 56) no Hoare annotation was computed. [2020-10-25 22:22:00,606 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,606 INFO L277 CegarLoopResult]: At program point L1004(lines 22 1005) the Hoare annotation is: true [2020-10-25 22:22:00,606 INFO L274 CegarLoopResult]: For program point L740(lines 740 764) no Hoare annotation was computed. [2020-10-25 22:22:00,607 INFO L274 CegarLoopResult]: For program point L377(lines 377 989) no Hoare annotation was computed. [2020-10-25 22:22:00,607 INFO L274 CegarLoopResult]: For program point L774(lines 774 955) no Hoare annotation was computed. [2020-10-25 22:22:00,607 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,607 INFO L274 CegarLoopResult]: For program point L411(lines 411 422) no Hoare annotation was computed. [2020-10-25 22:22:00,607 INFO L270 CegarLoopResult]: At program point L940(lines 858 947) the Hoare annotation is: (and (<= 9 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-10-25 22:22:00,608 INFO L274 CegarLoopResult]: For program point L874(lines 874 945) no Hoare annotation was computed. [2020-10-25 22:22:00,608 INFO L274 CegarLoopResult]: For program point L808(lines 808 832) no Hoare annotation was computed. [2020-10-25 22:22:00,608 INFO L274 CegarLoopResult]: For program point L445(lines 445 983) no Hoare annotation was computed. [2020-10-25 22:22:00,608 INFO L274 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-10-25 22:22:00,608 INFO L274 CegarLoopResult]: For program point L842(lines 842 949) no Hoare annotation was computed. [2020-10-25 22:22:00,608 INFO L274 CegarLoopResult]: For program point L479(lines 479 490) no Hoare annotation was computed. [2020-10-25 22:22:00,608 INFO L274 CegarLoopResult]: For program point L248(lines 248 283) no Hoare annotation was computed. [2020-10-25 22:22:00,609 INFO L274 CegarLoopResult]: For program point L83(lines 83 286) no Hoare annotation was computed. [2020-10-25 22:22:00,609 INFO L274 CegarLoopResult]: For program point L513(lines 513 977) no Hoare annotation was computed. [2020-10-25 22:22:00,609 INFO L270 CegarLoopResult]: At program point L282(lines 132 284) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 1 ULTIMATE.start_main_~main__t~0)) [2020-10-25 22:22:00,609 INFO L274 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-10-25 22:22:00,609 INFO L274 CegarLoopResult]: For program point L547(lines 547 558) no Hoare annotation was computed. [2020-10-25 22:22:00,609 INFO L274 CegarLoopResult]: For program point L217(lines 217 229) no Hoare annotation was computed. [2020-10-25 22:22:00,610 INFO L274 CegarLoopResult]: For program point L581(lines 581 971) no Hoare annotation was computed. [2020-10-25 22:22:00,610 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 22:22:00,610 INFO L274 CegarLoopResult]: For program point L317(lines 317 994) no Hoare annotation was computed. [2020-10-25 22:22:00,610 INFO L274 CegarLoopResult]: For program point L615(lines 615 626) no Hoare annotation was computed. [2020-10-25 22:22:00,610 INFO L274 CegarLoopResult]: For program point L649(lines 649 965) no Hoare annotation was computed. [2020-10-25 22:22:00,610 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,611 INFO L274 CegarLoopResult]: For program point L385(lines 385 988) no Hoare annotation was computed. [2020-10-25 22:22:00,611 INFO L274 CegarLoopResult]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2020-10-25 22:22:00,611 INFO L274 CegarLoopResult]: For program point L881(lines 881 907) no Hoare annotation was computed. [2020-10-25 22:22:00,611 INFO L274 CegarLoopResult]: For program point L683(lines 683 694) no Hoare annotation was computed. [2020-10-25 22:22:00,611 INFO L274 CegarLoopResult]: For program point L155(lines 155 234) no Hoare annotation was computed. [2020-10-25 22:22:00,611 INFO L274 CegarLoopResult]: For program point L717(lines 717 959) no Hoare annotation was computed. [2020-10-25 22:22:00,612 INFO L274 CegarLoopResult]: For program point L453(lines 453 982) no Hoare annotation was computed. [2020-10-25 22:22:00,612 INFO L274 CegarLoopResult]: For program point L255(lines 255 277) no Hoare annotation was computed. [2020-10-25 22:22:00,612 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,612 INFO L274 CegarLoopResult]: For program point L751(lines 751 762) no Hoare annotation was computed. [2020-10-25 22:22:00,613 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 22:22:00,613 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,613 INFO L274 CegarLoopResult]: For program point L917(lines 917 943) no Hoare annotation was computed. [2020-10-25 22:22:00,613 INFO L274 CegarLoopResult]: For program point L785(lines 785 953) no Hoare annotation was computed. [2020-10-25 22:22:00,613 INFO L274 CegarLoopResult]: For program point L521(lines 521 976) no Hoare annotation was computed. [2020-10-25 22:22:00,614 INFO L274 CegarLoopResult]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2020-10-25 22:22:00,614 INFO L274 CegarLoopResult]: For program point L819(lines 819 830) no Hoare annotation was computed. [2020-10-25 22:22:00,614 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,614 INFO L274 CegarLoopResult]: For program point L853(lines 853 947) no Hoare annotation was computed. [2020-10-25 22:22:00,614 INFO L274 CegarLoopResult]: For program point L589(lines 589 970) no Hoare annotation was computed. [2020-10-25 22:22:00,614 INFO L274 CegarLoopResult]: For program point L325(lines 325 993) no Hoare annotation was computed. [2020-10-25 22:22:00,615 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 22:22:00,615 INFO L274 CegarLoopResult]: For program point L657(lines 657 964) no Hoare annotation was computed. [2020-10-25 22:22:00,615 INFO L274 CegarLoopResult]: For program point L393(lines 393 987) no Hoare annotation was computed. [2020-10-25 22:22:00,615 INFO L274 CegarLoopResult]: For program point L96(lines 96 285) no Hoare annotation was computed. [2020-10-25 22:22:00,615 INFO L274 CegarLoopResult]: For program point L725(lines 725 958) no Hoare annotation was computed. [2020-10-25 22:22:00,615 INFO L274 CegarLoopResult]: For program point L461(lines 461 981) no Hoare annotation was computed. [2020-10-25 22:22:00,616 INFO L274 CegarLoopResult]: For program point L164(lines 164 233) no Hoare annotation was computed. [2020-10-25 22:22:00,616 INFO L274 CegarLoopResult]: For program point L65(lines 65 999) no Hoare annotation was computed. [2020-10-25 22:22:00,616 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 22:22:00,616 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,616 INFO L274 CegarLoopResult]: For program point L132(lines 132 284) no Hoare annotation was computed. [2020-10-25 22:22:00,616 INFO L274 CegarLoopResult]: For program point L793(lines 793 952) no Hoare annotation was computed. [2020-10-25 22:22:00,617 INFO L274 CegarLoopResult]: For program point L529(lines 529 975) no Hoare annotation was computed. [2020-10-25 22:22:00,617 INFO L274 CegarLoopResult]: For program point L298(lines 298 997) no Hoare annotation was computed. [2020-10-25 22:22:00,617 INFO L274 CegarLoopResult]: For program point L34(lines 34 58) no Hoare annotation was computed. [2020-10-25 22:22:00,617 INFO L274 CegarLoopResult]: For program point L893(lines 893 905) no Hoare annotation was computed. [2020-10-25 22:22:00,617 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 22:22:00,618 INFO L274 CegarLoopResult]: For program point L332(lines 332 356) no Hoare annotation was computed. [2020-10-25 22:22:00,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:22:00 BoogieIcfgContainer [2020-10-25 22:22:00,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 22:22:00,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 22:22:00,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 22:22:00,640 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 22:22:00,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:21:52" (3/4) ... [2020-10-25 22:22:00,644 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 22:22:00,664 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-25 22:22:00,666 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 22:22:00,667 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 22:22:00,669 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 22:22:00,869 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 22:22:00,870 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 22:22:00,873 INFO L168 Benchmark]: Toolchain (without parser) took 9781.72 ms. Allocated memory was 54.5 MB in the beginning and 144.7 MB in the end (delta: 90.2 MB). Free memory was 31.1 MB in the beginning and 114.5 MB in the end (delta: -83.4 MB). Peak memory consumption was 85.6 MB. Max. memory is 16.1 GB. [2020-10-25 22:22:00,874 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 54.5 MB. Free memory was 38.1 MB in the beginning and 38.0 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:22:00,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.65 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 26.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-10-25 22:22:00,876 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.66 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 26.3 MB in the beginning and 48.3 MB in the end (delta: -22.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2020-10-25 22:22:00,876 INFO L168 Benchmark]: Boogie Preprocessor took 47.85 ms. Allocated memory is still 67.1 MB. Free memory was 48.3 MB in the beginning and 46.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:22:00,877 INFO L168 Benchmark]: RCFGBuilder took 1019.58 ms. Allocated memory is still 67.1 MB. Free memory was 46.1 MB in the beginning and 30.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2020-10-25 22:22:00,877 INFO L168 Benchmark]: TraceAbstraction took 7888.56 ms. Allocated memory was 67.1 MB in the beginning and 144.7 MB in the end (delta: 77.6 MB). Free memory was 29.8 MB in the beginning and 42.6 MB in the end (delta: -12.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 16.1 GB. [2020-10-25 22:22:00,878 INFO L168 Benchmark]: Witness Printer took 230.64 ms. Allocated memory is still 144.7 MB. Free memory was 42.6 MB in the beginning and 114.5 MB in the end (delta: -71.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 22:22:00,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 54.5 MB. Free memory was 38.1 MB in the beginning and 38.0 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 485.65 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 26.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.66 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 26.3 MB in the beginning and 48.3 MB in the end (delta: -22.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.85 ms. Allocated memory is still 67.1 MB. Free memory was 48.3 MB in the beginning and 46.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1019.58 ms. Allocated memory is still 67.1 MB. Free memory was 46.1 MB in the beginning and 30.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7888.56 ms. Allocated memory was 67.1 MB in the beginning and 144.7 MB in the end (delta: 77.6 MB). Free memory was 29.8 MB in the beginning and 42.6 MB in the end (delta: -12.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 16.1 GB. * Witness Printer took 230.64 ms. Allocated memory is still 144.7 MB. Free memory was 42.6 MB in the beginning and 114.5 MB in the end (delta: -71.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - 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 16 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 9 <= main__t && main__t <= main__tagbuf_len - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 136 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.6s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1038 SDtfs, 1865 SDslu, 1430 SDs, 0 SdLazy, 3491 SolverSat, 398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 133 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 14 NumberOfFragments, 30 HoareAnnotationTreeSize, 6 FomulaSimplifications, 4287 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 257 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 386 NumberOfCodeBlocks, 386 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 367 ConstructedInterpolants, 0 QuantifiedInterpolants, 29885 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 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...