./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer --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-a4ecdab [2020-11-29 18:49:41,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:49:41,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:49:41,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:49:41,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:49:41,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:49:41,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:49:41,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:49:41,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:49:41,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:49:41,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:49:41,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:49:41,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:49:41,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:49:41,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:49:41,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:49:41,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:49:41,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:49:41,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:49:41,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:49:41,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:49:41,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:49:41,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:49:41,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:49:41,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:49:41,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:49:41,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:49:41,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:49:41,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:49:41,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:49:41,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:49:41,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:49:41,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:49:41,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:49:41,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:49:41,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:49:41,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:49:41,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:49:41,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:49:41,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:49:41,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:49:41,713 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:49:41,768 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:49:41,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:49:41,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:49:41,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:49:41,773 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:49:41,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:49:41,774 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:49:41,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:49:41,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:49:41,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:49:41,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:49:41,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:49:41,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:49:41,777 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:49:41,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:49:41,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:49:41,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:49:41,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:49:41,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:49:41,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:49:41,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:49:41,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:49:41,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:49:41,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:49:41,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:49:41,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:49:41,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:49:41,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:49:41,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:49:41,782 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:/tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b3c25b2e1855c4c0a30872aa894c42326e9c019 [2020-11-29 18:49:42,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:49:42,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:49:42,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:49:42,173 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:49:42,174 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:49:42,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-11-29 18:49:42,292 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/data/69f97f10c/2dba1c088ab94ff3a951c86db677ab6f/FLAGf0e2a4267 [2020-11-29 18:49:43,023 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:49:43,027 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-11-29 18:49:43,055 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/data/69f97f10c/2dba1c088ab94ff3a951c86db677ab6f/FLAGf0e2a4267 [2020-11-29 18:49:43,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/data/69f97f10c/2dba1c088ab94ff3a951c86db677ab6f [2020-11-29 18:49:43,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:49:43,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:49:43,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:49:43,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:49:43,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:49:43,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:49:43" (1/1) ... [2020-11-29 18:49:43,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@764e954a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:43, skipping insertion in model container [2020-11-29 18:49:43,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:49:43" (1/1) ... [2020-11-29 18:49:43,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:49:43,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:49:43,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:49:43,870 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:49:43,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:49:44,019 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:49:44,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:44 WrapperNode [2020-11-29 18:49:44,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:49:44,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:49:44,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:49:44,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:49:44,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:44" (1/1) ... [2020-11-29 18:49:44,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:44" (1/1) ... [2020-11-29 18:49:44,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:49:44,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:49:44,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:49:44,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:49:44,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:44" (1/1) ... [2020-11-29 18:49:44,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:44" (1/1) ... [2020-11-29 18:49:44,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:44" (1/1) ... [2020-11-29 18:49:44,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:44" (1/1) ... [2020-11-29 18:49:44,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:44" (1/1) ... [2020-11-29 18:49:44,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:44" (1/1) ... [2020-11-29 18:49:44,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:44" (1/1) ... [2020-11-29 18:49:44,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:49:44,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:49:44,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:49:44,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:49:44,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/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 [2020-11-29 18:49:44,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:49:44,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:49:44,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:49:44,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:49:45,589 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:49:45,589 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-11-29 18:49:45,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:49:45 BoogieIcfgContainer [2020-11-29 18:49:45,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:49:45,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:49:45,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:49:45,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:49:45,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:49:43" (1/3) ... [2020-11-29 18:49:45,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62da524b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:49:45, skipping insertion in model container [2020-11-29 18:49:45,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:44" (2/3) ... [2020-11-29 18:49:45,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62da524b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:49:45, skipping insertion in model container [2020-11-29 18:49:45,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:49:45" (3/3) ... [2020-11-29 18:49:45,607 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2020-11-29 18:49:45,620 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:49:45,625 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-11-29 18:49:45,638 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-11-29 18:49:45,679 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:49:45,679 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:49:45,679 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:49:45,679 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:49:45,679 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:49:45,680 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:49:45,680 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:49:45,680 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:49:45,719 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2020-11-29 18:49:45,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 18:49:45,727 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:45,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:45,728 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]=== [2020-11-29 18:49:45,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:45,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1804934597, now seen corresponding path program 1 times [2020-11-29 18:49:45,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:45,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298698337] [2020-11-29 18:49:45,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:46,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298698337] [2020-11-29 18:49:46,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:46,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:49:46,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874067390] [2020-11-29 18:49:46,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:49:46,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:46,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:49:46,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:49:46,086 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 4 states. [2020-11-29 18:49:46,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:46,755 INFO L93 Difference]: Finished difference Result 147 states and 221 transitions. [2020-11-29 18:49:46,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:49:46,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 18:49:46,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:46,768 INFO L225 Difference]: With dead ends: 147 [2020-11-29 18:49:46,769 INFO L226 Difference]: Without dead ends: 114 [2020-11-29 18:49:46,772 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 [2020-11-29 18:49:46,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-29 18:49:46,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-11-29 18:49:46,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-29 18:49:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2020-11-29 18:49:46,833 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 7 [2020-11-29 18:49:46,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:46,833 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2020-11-29 18:49:46,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:49:46,833 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2020-11-29 18:49:46,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 18:49:46,834 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:46,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:46,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:49:46,835 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]=== [2020-11-29 18:49:46,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:46,836 INFO L82 PathProgramCache]: Analyzing trace with hash 118403696, now seen corresponding path program 1 times [2020-11-29 18:49:46,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:46,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574158264] [2020-11-29 18:49:46,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:46,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:46,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574158264] [2020-11-29 18:49:46,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:46,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:49:46,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262413955] [2020-11-29 18:49:46,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:49:46,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:46,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:49:46,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:49:46,948 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand 5 states. [2020-11-29 18:49:47,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:47,317 INFO L93 Difference]: Finished difference Result 117 states and 138 transitions. [2020-11-29 18:49:47,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:49:47,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-11-29 18:49:47,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:47,319 INFO L225 Difference]: With dead ends: 117 [2020-11-29 18:49:47,320 INFO L226 Difference]: Without dead ends: 109 [2020-11-29 18:49:47,321 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 [2020-11-29 18:49:47,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-29 18:49:47,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-29 18:49:47,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-29 18:49:47,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2020-11-29 18:49:47,345 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 8 [2020-11-29 18:49:47,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:47,345 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2020-11-29 18:49:47,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:49:47,346 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2020-11-29 18:49:47,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 18:49:47,347 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:47,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:47,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:49:47,350 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]=== [2020-11-29 18:49:47,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:47,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1410106030, now seen corresponding path program 1 times [2020-11-29 18:49:47,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:47,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130585058] [2020-11-29 18:49:47,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:47,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130585058] [2020-11-29 18:49:47,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:47,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:49:47,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070573093] [2020-11-29 18:49:47,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:49:47,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:47,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:49:47,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:49:47,493 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand 5 states. [2020-11-29 18:49:47,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:47,891 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2020-11-29 18:49:47,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:49:47,893 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-29 18:49:47,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:47,895 INFO L225 Difference]: With dead ends: 109 [2020-11-29 18:49:47,895 INFO L226 Difference]: Without dead ends: 107 [2020-11-29 18:49:47,896 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 [2020-11-29 18:49:47,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-29 18:49:47,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-29 18:49:47,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-29 18:49:47,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2020-11-29 18:49:47,923 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 11 [2020-11-29 18:49:47,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:47,924 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2020-11-29 18:49:47,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:49:47,924 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2020-11-29 18:49:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 18:49:47,925 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:47,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:47,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 18:49:47,926 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]=== [2020-11-29 18:49:47,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:47,927 INFO L82 PathProgramCache]: Analyzing trace with hash 763620047, now seen corresponding path program 1 times [2020-11-29 18:49:47,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:47,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768581675] [2020-11-29 18:49:47,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:48,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768581675] [2020-11-29 18:49:48,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:48,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:49:48,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988799401] [2020-11-29 18:49:48,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:49:48,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:48,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:49:48,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:49:48,038 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand 4 states. [2020-11-29 18:49:48,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:48,292 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2020-11-29 18:49:48,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:49:48,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-29 18:49:48,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:48,295 INFO L225 Difference]: With dead ends: 107 [2020-11-29 18:49:48,295 INFO L226 Difference]: Without dead ends: 103 [2020-11-29 18:49:48,296 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 [2020-11-29 18:49:48,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-11-29 18:49:48,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-11-29 18:49:48,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-29 18:49:48,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2020-11-29 18:49:48,309 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 12 [2020-11-29 18:49:48,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:48,315 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2020-11-29 18:49:48,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:49:48,316 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2020-11-29 18:49:48,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:49:48,317 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:48,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:48,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 18:49:48,318 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]=== [2020-11-29 18:49:48,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:48,319 INFO L82 PathProgramCache]: Analyzing trace with hash -2078680795, now seen corresponding path program 1 times [2020-11-29 18:49:48,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:48,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665741613] [2020-11-29 18:49:48,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:48,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:48,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665741613] [2020-11-29 18:49:48,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:48,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:49:48,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229977816] [2020-11-29 18:49:48,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:49:48,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:48,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:49:48,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:49:48,452 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand 5 states. [2020-11-29 18:49:48,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:48,868 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2020-11-29 18:49:48,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:49:48,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-29 18:49:48,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:48,871 INFO L225 Difference]: With dead ends: 121 [2020-11-29 18:49:48,871 INFO L226 Difference]: Without dead ends: 119 [2020-11-29 18:49:48,872 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 [2020-11-29 18:49:48,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-11-29 18:49:48,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 101. [2020-11-29 18:49:48,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-29 18:49:48,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2020-11-29 18:49:48,882 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 13 [2020-11-29 18:49:48,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:48,883 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2020-11-29 18:49:48,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:49:48,890 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2020-11-29 18:49:48,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:49:48,892 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:48,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:48,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 18:49:48,893 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]=== [2020-11-29 18:49:48,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:48,895 INFO L82 PathProgramCache]: Analyzing trace with hash -2076587483, now seen corresponding path program 1 times [2020-11-29 18:49:48,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:48,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035705846] [2020-11-29 18:49:48,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:49,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:49,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035705846] [2020-11-29 18:49:49,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:49,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:49:49,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818739330] [2020-11-29 18:49:49,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:49:49,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:49,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:49:49,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:49:49,046 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand 5 states. [2020-11-29 18:49:49,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:49,398 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2020-11-29 18:49:49,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:49:49,398 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-29 18:49:49,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:49,399 INFO L225 Difference]: With dead ends: 101 [2020-11-29 18:49:49,400 INFO L226 Difference]: Without dead ends: 99 [2020-11-29 18:49:49,400 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 [2020-11-29 18:49:49,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-11-29 18:49:49,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-11-29 18:49:49,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-29 18:49:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2020-11-29 18:49:49,409 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 13 [2020-11-29 18:49:49,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:49,409 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2020-11-29 18:49:49,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:49:49,410 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2020-11-29 18:49:49,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 18:49:49,411 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:49,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:49,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 18:49:49,411 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]=== [2020-11-29 18:49:49,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:49,412 INFO L82 PathProgramCache]: Analyzing trace with hash -12678507, now seen corresponding path program 1 times [2020-11-29 18:49:49,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:49,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144258191] [2020-11-29 18:49:49,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:49,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144258191] [2020-11-29 18:49:49,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:49,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:49:49,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868973280] [2020-11-29 18:49:49,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:49:49,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:49,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:49:49,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:49:49,512 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 5 states. [2020-11-29 18:49:49,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:49,882 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2020-11-29 18:49:49,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:49:49,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-29 18:49:49,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:49,884 INFO L225 Difference]: With dead ends: 120 [2020-11-29 18:49:49,884 INFO L226 Difference]: Without dead ends: 118 [2020-11-29 18:49:49,885 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 [2020-11-29 18:49:49,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-11-29 18:49:49,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 97. [2020-11-29 18:49:49,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-29 18:49:49,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2020-11-29 18:49:49,898 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 14 [2020-11-29 18:49:49,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:49,899 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2020-11-29 18:49:49,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:49:49,899 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2020-11-29 18:49:49,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 18:49:49,900 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:49,900 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:49,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 18:49:49,901 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]=== [2020-11-29 18:49:49,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:49,901 INFO L82 PathProgramCache]: Analyzing trace with hash -14589102, now seen corresponding path program 1 times [2020-11-29 18:49:49,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:49,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773579963] [2020-11-29 18:49:49,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:50,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:50,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773579963] [2020-11-29 18:49:50,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:50,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 18:49:50,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20618952] [2020-11-29 18:49:50,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:49:50,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:50,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:49:50,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:49:50,089 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand 6 states. [2020-11-29 18:49:50,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:50,436 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2020-11-29 18:49:50,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:49:50,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-29 18:49:50,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:50,439 INFO L225 Difference]: With dead ends: 130 [2020-11-29 18:49:50,439 INFO L226 Difference]: Without dead ends: 128 [2020-11-29 18:49:50,440 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 [2020-11-29 18:49:50,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-11-29 18:49:50,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 103. [2020-11-29 18:49:50,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-29 18:49:50,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2020-11-29 18:49:50,450 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 14 [2020-11-29 18:49:50,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:50,451 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2020-11-29 18:49:50,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:49:50,451 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2020-11-29 18:49:50,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 18:49:50,452 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:50,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:50,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 18:49:50,453 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]=== [2020-11-29 18:49:50,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:50,454 INFO L82 PathProgramCache]: Analyzing trace with hash 50303638, now seen corresponding path program 1 times [2020-11-29 18:49:50,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:50,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568250732] [2020-11-29 18:49:50,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:50,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:50,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568250732] [2020-11-29 18:49:50,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:50,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 18:49:50,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721666450] [2020-11-29 18:49:50,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:49:50,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:50,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:49:50,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:49:50,658 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 6 states. [2020-11-29 18:49:50,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:50,995 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2020-11-29 18:49:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:49:50,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-29 18:49:50,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:50,996 INFO L225 Difference]: With dead ends: 113 [2020-11-29 18:49:50,996 INFO L226 Difference]: Without dead ends: 109 [2020-11-29 18:49:50,997 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 [2020-11-29 18:49:50,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-29 18:49:51,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2020-11-29 18:49:51,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-29 18:49:51,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2020-11-29 18:49:51,003 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 14 [2020-11-29 18:49:51,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:51,004 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2020-11-29 18:49:51,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:49:51,004 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2020-11-29 18:49:51,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 18:49:51,005 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:51,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:51,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 18:49:51,006 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]=== [2020-11-29 18:49:51,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:51,006 INFO L82 PathProgramCache]: Analyzing trace with hash -393027571, now seen corresponding path program 1 times [2020-11-29 18:49:51,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:51,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136441482] [2020-11-29 18:49:51,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:51,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:51,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136441482] [2020-11-29 18:49:51,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:51,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 18:49:51,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383219096] [2020-11-29 18:49:51,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:49:51,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:51,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:49:51,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:49:51,278 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 6 states. [2020-11-29 18:49:51,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:51,719 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2020-11-29 18:49:51,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:49:51,721 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-29 18:49:51,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:51,722 INFO L225 Difference]: With dead ends: 131 [2020-11-29 18:49:51,722 INFO L226 Difference]: Without dead ends: 129 [2020-11-29 18:49:51,723 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 [2020-11-29 18:49:51,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-11-29 18:49:51,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 107. [2020-11-29 18:49:51,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-29 18:49:51,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2020-11-29 18:49:51,729 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 15 [2020-11-29 18:49:51,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:51,730 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2020-11-29 18:49:51,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:49:51,730 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2020-11-29 18:49:51,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 18:49:51,731 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:51,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:51,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 18:49:51,731 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]=== [2020-11-29 18:49:51,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:51,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1135035499, now seen corresponding path program 1 times [2020-11-29 18:49:51,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:51,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601857131] [2020-11-29 18:49:51,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:51,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601857131] [2020-11-29 18:49:51,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:51,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:49:51,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83443399] [2020-11-29 18:49:51,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:49:51,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:51,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:49:51,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:49:51,805 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 4 states. [2020-11-29 18:49:51,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:51,915 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2020-11-29 18:49:51,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:49:51,916 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-29 18:49:51,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:51,917 INFO L225 Difference]: With dead ends: 107 [2020-11-29 18:49:51,917 INFO L226 Difference]: Without dead ends: 105 [2020-11-29 18:49:51,917 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 [2020-11-29 18:49:51,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-11-29 18:49:51,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-11-29 18:49:51,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-11-29 18:49:51,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2020-11-29 18:49:51,923 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 16 [2020-11-29 18:49:51,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:51,924 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2020-11-29 18:49:51,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:49:51,924 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2020-11-29 18:49:51,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:49:51,925 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:51,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:51,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 18:49:51,926 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]=== [2020-11-29 18:49:51,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:51,926 INFO L82 PathProgramCache]: Analyzing trace with hash -826355977, now seen corresponding path program 1 times [2020-11-29 18:49:51,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:51,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250052682] [2020-11-29 18:49:51,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:51,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250052682] [2020-11-29 18:49:51,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:51,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:49:51,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421637037] [2020-11-29 18:49:51,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:49:51,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:51,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:49:51,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:49:51,994 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 4 states. [2020-11-29 18:49:52,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:52,194 INFO L93 Difference]: Finished difference Result 105 states and 119 transitions. [2020-11-29 18:49:52,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:49:52,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-29 18:49:52,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:52,196 INFO L225 Difference]: With dead ends: 105 [2020-11-29 18:49:52,196 INFO L226 Difference]: Without dead ends: 101 [2020-11-29 18:49:52,197 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 [2020-11-29 18:49:52,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-11-29 18:49:52,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-11-29 18:49:52,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-29 18:49:52,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-11-29 18:49:52,205 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 17 [2020-11-29 18:49:52,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:52,205 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-11-29 18:49:52,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:49:52,206 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-11-29 18:49:52,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 18:49:52,207 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:52,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:52,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 18:49:52,208 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]=== [2020-11-29 18:49:52,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:52,209 INFO L82 PathProgramCache]: Analyzing trace with hash 171645234, now seen corresponding path program 1 times [2020-11-29 18:49:52,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:52,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011195479] [2020-11-29 18:49:52,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:52,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:52,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011195479] [2020-11-29 18:49:52,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:52,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 18:49:52,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972337540] [2020-11-29 18:49:52,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:49:52,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:52,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:49:52,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:49:52,305 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 6 states. [2020-11-29 18:49:52,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:52,742 INFO L93 Difference]: Finished difference Result 117 states and 133 transitions. [2020-11-29 18:49:52,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:49:52,743 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-29 18:49:52,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:52,744 INFO L225 Difference]: With dead ends: 117 [2020-11-29 18:49:52,744 INFO L226 Difference]: Without dead ends: 115 [2020-11-29 18:49:52,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:49:52,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-29 18:49:52,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 96. [2020-11-29 18:49:52,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-29 18:49:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-11-29 18:49:52,750 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 18 [2020-11-29 18:49:52,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:52,751 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-11-29 18:49:52,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:49:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-11-29 18:49:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 18:49:52,764 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:52,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:52,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 18:49:52,765 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]=== [2020-11-29 18:49:52,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:52,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1598213575, now seen corresponding path program 1 times [2020-11-29 18:49:52,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:52,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676902551] [2020-11-29 18:49:52,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:52,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:52,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676902551] [2020-11-29 18:49:52,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:52,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 18:49:52,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456038848] [2020-11-29 18:49:52,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:49:52,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:52,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:49:52,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:49:52,936 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 6 states. [2020-11-29 18:49:53,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:53,323 INFO L93 Difference]: Finished difference Result 109 states and 125 transitions. [2020-11-29 18:49:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:49:53,323 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-29 18:49:53,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:53,325 INFO L225 Difference]: With dead ends: 109 [2020-11-29 18:49:53,325 INFO L226 Difference]: Without dead ends: 107 [2020-11-29 18:49:53,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:49:53,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-29 18:49:53,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 91. [2020-11-29 18:49:53,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-29 18:49:53,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2020-11-29 18:49:53,339 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 18 [2020-11-29 18:49:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:53,340 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2020-11-29 18:49:53,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:49:53,340 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2020-11-29 18:49:53,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 18:49:53,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:53,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:53,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 18:49:53,341 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]=== [2020-11-29 18:49:53,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:53,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1663106315, now seen corresponding path program 1 times [2020-11-29 18:49:53,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:53,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72743926] [2020-11-29 18:49:53,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:53,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:53,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72743926] [2020-11-29 18:49:53,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:53,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 18:49:53,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449352956] [2020-11-29 18:49:53,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:49:53,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:53,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:49:53,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:49:53,435 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand 6 states. [2020-11-29 18:49:53,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:53,772 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2020-11-29 18:49:53,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:49:53,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-29 18:49:53,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:53,775 INFO L225 Difference]: With dead ends: 91 [2020-11-29 18:49:53,775 INFO L226 Difference]: Without dead ends: 54 [2020-11-29 18:49:53,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:49:53,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-29 18:49:53,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-29 18:49:53,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-29 18:49:53,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2020-11-29 18:49:53,778 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 18 [2020-11-29 18:49:53,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:53,779 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2020-11-29 18:49:53,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:49:53,779 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2020-11-29 18:49:53,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-29 18:49:53,785 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:53,786 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] [2020-11-29 18:49:53,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 18:49:53,786 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]=== [2020-11-29 18:49:53,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:53,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1909250009, now seen corresponding path program 1 times [2020-11-29 18:49:53,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:53,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795822993] [2020-11-29 18:49:53,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:54,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:54,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795822993] [2020-11-29 18:49:54,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:54,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-29 18:49:54,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258186920] [2020-11-29 18:49:54,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-29 18:49:54,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:54,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-29 18:49:54,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-11-29 18:49:54,069 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 13 states. [2020-11-29 18:49:54,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:54,348 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2020-11-29 18:49:54,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-29 18:49:54,349 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-11-29 18:49:54,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:54,350 INFO L225 Difference]: With dead ends: 54 [2020-11-29 18:49:54,350 INFO L226 Difference]: Without dead ends: 52 [2020-11-29 18:49:54,350 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 [2020-11-29 18:49:54,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-29 18:49:54,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-29 18:49:54,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-29 18:49:54,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2020-11-29 18:49:54,353 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 44 [2020-11-29 18:49:54,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:54,354 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2020-11-29 18:49:54,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-29 18:49:54,354 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2020-11-29 18:49:54,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-29 18:49:54,355 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:54,356 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] [2020-11-29 18:49:54,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 18:49:54,356 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]=== [2020-11-29 18:49:54,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:54,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1909269869, now seen corresponding path program 1 times [2020-11-29 18:49:54,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:54,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929862589] [2020-11-29 18:49:54,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:54,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:54,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929862589] [2020-11-29 18:49:54,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:54,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-29 18:49:54,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036659325] [2020-11-29 18:49:54,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-29 18:49:54,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:54,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-29 18:49:54,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-11-29 18:49:54,569 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 13 states. [2020-11-29 18:49:54,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:54,808 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2020-11-29 18:49:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-29 18:49:54,808 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-11-29 18:49:54,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:54,809 INFO L225 Difference]: With dead ends: 59 [2020-11-29 18:49:54,809 INFO L226 Difference]: Without dead ends: 57 [2020-11-29 18:49:54,810 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 [2020-11-29 18:49:54,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-29 18:49:54,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-11-29 18:49:54,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-29 18:49:54,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2020-11-29 18:49:54,813 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 44 [2020-11-29 18:49:54,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:54,813 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2020-11-29 18:49:54,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-29 18:49:54,813 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2020-11-29 18:49:54,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-29 18:49:54,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:54,814 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] [2020-11-29 18:49:54,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 18:49:54,814 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]=== [2020-11-29 18:49:54,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:54,815 INFO L82 PathProgramCache]: Analyzing trace with hash -942785412, now seen corresponding path program 1 times [2020-11-29 18:49:54,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:54,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805105561] [2020-11-29 18:49:54,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:54,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:54,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805105561] [2020-11-29 18:49:54,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:54,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 18:49:54,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48247328] [2020-11-29 18:49:54,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 18:49:54,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:54,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 18:49:54,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:49:54,979 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 7 states. [2020-11-29 18:49:55,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:55,156 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-11-29 18:49:55,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:49:55,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-11-29 18:49:55,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:55,157 INFO L225 Difference]: With dead ends: 50 [2020-11-29 18:49:55,158 INFO L226 Difference]: Without dead ends: 46 [2020-11-29 18:49:55,158 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 [2020-11-29 18:49:55,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-29 18:49:55,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-11-29 18:49:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-29 18:49:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2020-11-29 18:49:55,161 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 45 [2020-11-29 18:49:55,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:55,161 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2020-11-29 18:49:55,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 18:49:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2020-11-29 18:49:55,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-29 18:49:55,163 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:49:55,163 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] [2020-11-29 18:49:55,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 18:49:55,163 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]=== [2020-11-29 18:49:55,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:55,164 INFO L82 PathProgramCache]: Analyzing trace with hash -942169732, now seen corresponding path program 1 times [2020-11-29 18:49:55,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:55,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658173677] [2020-11-29 18:49:55,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:55,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:55,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658173677] [2020-11-29 18:49:55,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:55,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 18:49:55,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059547575] [2020-11-29 18:49:55,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 18:49:55,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:55,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 18:49:55,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:49:55,372 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 7 states. [2020-11-29 18:49:55,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:55,551 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-11-29 18:49:55,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:49:55,552 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-11-29 18:49:55,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:49:55,552 INFO L225 Difference]: With dead ends: 50 [2020-11-29 18:49:55,552 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:49:55,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:49:55,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:49:55,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:49:55,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:49:55,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:49:55,554 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-11-29 18:49:55,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:49:55,554 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:49:55,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 18:49:55,554 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:49:55,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:49:55,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-29 18:49:55,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:49:55,762 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,762 INFO L274 CegarLoopResult]: For program point L597(lines 597 969) no Hoare annotation was computed. [2020-11-29 18:49:55,762 INFO L274 CegarLoopResult]: For program point L366(lines 366 991) no Hoare annotation was computed. [2020-11-29 18:49:55,762 INFO L274 CegarLoopResult]: For program point L267(lines 267 275) no Hoare annotation was computed. [2020-11-29 18:49:55,763 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,763 INFO L274 CegarLoopResult]: For program point L400(lines 400 424) no Hoare annotation was computed. [2020-11-29 18:49:55,763 INFO L274 CegarLoopResult]: For program point L136(lines 136 242) no Hoare annotation was computed. [2020-11-29 18:49:55,763 INFO L274 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-11-29 18:49:55,763 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,763 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,763 INFO L274 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,763 INFO L274 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,763 INFO L274 CegarLoopResult]: For program point L929(lines 929 941) no Hoare annotation was computed. [2020-11-29 18:49:55,763 INFO L274 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,764 INFO L274 CegarLoopResult]: For program point L4-5(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,764 INFO L274 CegarLoopResult]: For program point L4-6(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,764 INFO L274 CegarLoopResult]: For program point L4-7(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,764 INFO L274 CegarLoopResult]: For program point L4-8(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,764 INFO L274 CegarLoopResult]: For program point L4-9(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,764 INFO L274 CegarLoopResult]: For program point L4-10(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,764 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,764 INFO L274 CegarLoopResult]: For program point L4-11(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,764 INFO L274 CegarLoopResult]: For program point L665(lines 665 963) no Hoare annotation was computed. [2020-11-29 18:49:55,764 INFO L274 CegarLoopResult]: For program point L4-12(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,764 INFO L274 CegarLoopResult]: For program point L4-13(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,764 INFO L274 CegarLoopResult]: For program point L4-14(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,765 INFO L274 CegarLoopResult]: For program point L4-15(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,765 INFO L274 CegarLoopResult]: For program point L4-16(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,765 INFO L274 CegarLoopResult]: For program point L4-17(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,765 INFO L274 CegarLoopResult]: For program point L4-18(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,765 INFO L274 CegarLoopResult]: For program point L434(lines 434 985) no Hoare annotation was computed. [2020-11-29 18:49:55,765 INFO L274 CegarLoopResult]: For program point L4-19(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,765 INFO L274 CegarLoopResult]: For program point L4-20(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,765 INFO L274 CegarLoopResult]: For program point L4-21(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,765 INFO L274 CegarLoopResult]: For program point L4-22(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,765 INFO L274 CegarLoopResult]: For program point L4-23(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,765 INFO L274 CegarLoopResult]: For program point L4-24(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,765 INFO L274 CegarLoopResult]: For program point L4-25(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,766 INFO L274 CegarLoopResult]: For program point L4-26(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,766 INFO L274 CegarLoopResult]: For program point L4-27(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,766 INFO L274 CegarLoopResult]: For program point L4-28(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,766 INFO L274 CegarLoopResult]: For program point L4-29(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,766 INFO L274 CegarLoopResult]: For program point L4-30(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,766 INFO L274 CegarLoopResult]: For program point L4-31(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,766 INFO L274 CegarLoopResult]: For program point L468(lines 468 492) no Hoare annotation was computed. [2020-11-29 18:49:55,766 INFO L274 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-11-29 18:49:55,766 INFO L274 CegarLoopResult]: For program point L72(lines 72 288) no Hoare annotation was computed. [2020-11-29 18:49:55,766 INFO L274 CegarLoopResult]: For program point L733(lines 733 957) no Hoare annotation was computed. [2020-11-29 18:49:55,766 INFO L274 CegarLoopResult]: For program point L502(lines 502 979) no Hoare annotation was computed. [2020-11-29 18:49:55,767 INFO L274 CegarLoopResult]: For program point L205(lines 205 231) no Hoare annotation was computed. [2020-11-29 18:49:55,767 INFO L277 CegarLoopResult]: At program point L932(lines 17 1006) the Hoare annotation is: true [2020-11-29 18:49:55,767 INFO L274 CegarLoopResult]: For program point L866(lines 866 946) no Hoare annotation was computed. [2020-11-29 18:49:55,770 INFO L274 CegarLoopResult]: For program point L536(lines 536 560) no Hoare annotation was computed. [2020-11-29 18:49:55,771 INFO L274 CegarLoopResult]: For program point L801(lines 801 951) no Hoare annotation was computed. [2020-11-29 18:49:55,771 INFO L274 CegarLoopResult]: For program point L570(lines 570 973) no Hoare annotation was computed. [2020-11-29 18:49:55,771 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)) [2020-11-29 18:49:55,771 INFO L274 CegarLoopResult]: For program point L604(lines 604 628) no Hoare annotation was computed. [2020-11-29 18:49:55,772 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,772 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,772 INFO L274 CegarLoopResult]: For program point L638(lines 638 967) no Hoare annotation was computed. [2020-11-29 18:49:55,772 INFO L274 CegarLoopResult]: For program point L143(lines 143 236) no Hoare annotation was computed. [2020-11-29 18:49:55,772 INFO L274 CegarLoopResult]: For program point L672(lines 672 696) no Hoare annotation was computed. [2020-11-29 18:49:55,772 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,773 INFO L274 CegarLoopResult]: For program point L309(lines 309 995) no Hoare annotation was computed. [2020-11-29 18:49:55,773 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,773 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)) [2020-11-29 18:49:55,773 INFO L274 CegarLoopResult]: For program point L706(lines 706 961) no Hoare annotation was computed. [2020-11-29 18:49:55,773 INFO L274 CegarLoopResult]: For program point L343(lines 343 354) no Hoare annotation was computed. [2020-11-29 18:49:55,773 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,774 INFO L274 CegarLoopResult]: For program point L46(lines 46 56) no Hoare annotation was computed. [2020-11-29 18:49:55,774 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,774 INFO L277 CegarLoopResult]: At program point L1004(lines 22 1005) the Hoare annotation is: true [2020-11-29 18:49:55,774 INFO L274 CegarLoopResult]: For program point L740(lines 740 764) no Hoare annotation was computed. [2020-11-29 18:49:55,774 INFO L274 CegarLoopResult]: For program point L377(lines 377 989) no Hoare annotation was computed. [2020-11-29 18:49:55,774 INFO L274 CegarLoopResult]: For program point L774(lines 774 955) no Hoare annotation was computed. [2020-11-29 18:49:55,775 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,775 INFO L274 CegarLoopResult]: For program point L411(lines 411 422) no Hoare annotation was computed. [2020-11-29 18:49:55,775 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)) [2020-11-29 18:49:55,775 INFO L274 CegarLoopResult]: For program point L874(lines 874 945) no Hoare annotation was computed. [2020-11-29 18:49:55,775 INFO L274 CegarLoopResult]: For program point L808(lines 808 832) no Hoare annotation was computed. [2020-11-29 18:49:55,775 INFO L274 CegarLoopResult]: For program point L445(lines 445 983) no Hoare annotation was computed. [2020-11-29 18:49:55,776 INFO L274 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-11-29 18:49:55,776 INFO L274 CegarLoopResult]: For program point L842(lines 842 949) no Hoare annotation was computed. [2020-11-29 18:49:55,776 INFO L274 CegarLoopResult]: For program point L479(lines 479 490) no Hoare annotation was computed. [2020-11-29 18:49:55,776 INFO L274 CegarLoopResult]: For program point L248(lines 248 283) no Hoare annotation was computed. [2020-11-29 18:49:55,776 INFO L274 CegarLoopResult]: For program point L83(lines 83 286) no Hoare annotation was computed. [2020-11-29 18:49:55,776 INFO L274 CegarLoopResult]: For program point L513(lines 513 977) no Hoare annotation was computed. [2020-11-29 18:49:55,777 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)) [2020-11-29 18:49:55,777 INFO L274 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-11-29 18:49:55,777 INFO L274 CegarLoopResult]: For program point L547(lines 547 558) no Hoare annotation was computed. [2020-11-29 18:49:55,777 INFO L274 CegarLoopResult]: For program point L217(lines 217 229) no Hoare annotation was computed. [2020-11-29 18:49:55,777 INFO L274 CegarLoopResult]: For program point L581(lines 581 971) no Hoare annotation was computed. [2020-11-29 18:49:55,777 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:49:55,777 INFO L274 CegarLoopResult]: For program point L317(lines 317 994) no Hoare annotation was computed. [2020-11-29 18:49:55,778 INFO L274 CegarLoopResult]: For program point L615(lines 615 626) no Hoare annotation was computed. [2020-11-29 18:49:55,778 INFO L274 CegarLoopResult]: For program point L649(lines 649 965) no Hoare annotation was computed. [2020-11-29 18:49:55,779 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,779 INFO L274 CegarLoopResult]: For program point L385(lines 385 988) no Hoare annotation was computed. [2020-11-29 18:49:55,779 INFO L274 CegarLoopResult]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2020-11-29 18:49:55,779 INFO L274 CegarLoopResult]: For program point L881(lines 881 907) no Hoare annotation was computed. [2020-11-29 18:49:55,779 INFO L274 CegarLoopResult]: For program point L683(lines 683 694) no Hoare annotation was computed. [2020-11-29 18:49:55,779 INFO L274 CegarLoopResult]: For program point L155(lines 155 234) no Hoare annotation was computed. [2020-11-29 18:49:55,780 INFO L274 CegarLoopResult]: For program point L717(lines 717 959) no Hoare annotation was computed. [2020-11-29 18:49:55,780 INFO L274 CegarLoopResult]: For program point L453(lines 453 982) no Hoare annotation was computed. [2020-11-29 18:49:55,780 INFO L274 CegarLoopResult]: For program point L255(lines 255 277) no Hoare annotation was computed. [2020-11-29 18:49:55,780 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,780 INFO L274 CegarLoopResult]: For program point L751(lines 751 762) no Hoare annotation was computed. [2020-11-29 18:49:55,780 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:49:55,780 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,781 INFO L274 CegarLoopResult]: For program point L917(lines 917 943) no Hoare annotation was computed. [2020-11-29 18:49:55,781 INFO L274 CegarLoopResult]: For program point L785(lines 785 953) no Hoare annotation was computed. [2020-11-29 18:49:55,781 INFO L274 CegarLoopResult]: For program point L521(lines 521 976) no Hoare annotation was computed. [2020-11-29 18:49:55,781 INFO L274 CegarLoopResult]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2020-11-29 18:49:55,781 INFO L274 CegarLoopResult]: For program point L819(lines 819 830) no Hoare annotation was computed. [2020-11-29 18:49:55,781 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,781 INFO L274 CegarLoopResult]: For program point L853(lines 853 947) no Hoare annotation was computed. [2020-11-29 18:49:55,782 INFO L274 CegarLoopResult]: For program point L589(lines 589 970) no Hoare annotation was computed. [2020-11-29 18:49:55,783 INFO L274 CegarLoopResult]: For program point L325(lines 325 993) no Hoare annotation was computed. [2020-11-29 18:49:55,784 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:49:55,784 INFO L274 CegarLoopResult]: For program point L657(lines 657 964) no Hoare annotation was computed. [2020-11-29 18:49:55,784 INFO L274 CegarLoopResult]: For program point L393(lines 393 987) no Hoare annotation was computed. [2020-11-29 18:49:55,784 INFO L274 CegarLoopResult]: For program point L96(lines 96 285) no Hoare annotation was computed. [2020-11-29 18:49:55,784 INFO L274 CegarLoopResult]: For program point L725(lines 725 958) no Hoare annotation was computed. [2020-11-29 18:49:55,784 INFO L274 CegarLoopResult]: For program point L461(lines 461 981) no Hoare annotation was computed. [2020-11-29 18:49:55,784 INFO L274 CegarLoopResult]: For program point L164(lines 164 233) no Hoare annotation was computed. [2020-11-29 18:49:55,785 INFO L274 CegarLoopResult]: For program point L65(lines 65 999) no Hoare annotation was computed. [2020-11-29 18:49:55,785 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:49:55,785 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,785 INFO L274 CegarLoopResult]: For program point L132(lines 132 284) no Hoare annotation was computed. [2020-11-29 18:49:55,785 INFO L274 CegarLoopResult]: For program point L793(lines 793 952) no Hoare annotation was computed. [2020-11-29 18:49:55,785 INFO L274 CegarLoopResult]: For program point L529(lines 529 975) no Hoare annotation was computed. [2020-11-29 18:49:55,785 INFO L274 CegarLoopResult]: For program point L298(lines 298 997) no Hoare annotation was computed. [2020-11-29 18:49:55,786 INFO L274 CegarLoopResult]: For program point L34(lines 34 58) no Hoare annotation was computed. [2020-11-29 18:49:55,786 INFO L274 CegarLoopResult]: For program point L893(lines 893 905) no Hoare annotation was computed. [2020-11-29 18:49:55,786 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:49:55,786 INFO L274 CegarLoopResult]: For program point L332(lines 332 356) no Hoare annotation was computed. [2020-11-29 18:49:55,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:49:55 BoogieIcfgContainer [2020-11-29 18:49:55,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:49:55,812 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:49:55,812 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:49:55,812 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:49:55,813 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:49:45" (3/4) ... [2020-11-29 18:49:55,816 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:49:55,850 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 18:49:55,852 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 18:49:55,854 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:49:55,856 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:49:56,038 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_36217463-000e-47bf-90bf-eabeea811c8b/bin/uautomizer/witness.graphml [2020-11-29 18:49:56,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:49:56,041 INFO L168 Benchmark]: Toolchain (without parser) took 12771.07 ms. Allocated memory was 104.9 MB in the beginning and 157.3 MB in the end (delta: 52.4 MB). Free memory was 70.7 MB in the beginning and 51.8 MB in the end (delta: 18.9 MB). Peak memory consumption was 72.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:56,043 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 104.9 MB. Free memory was 78.9 MB in the beginning and 78.9 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:49:56,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.84 ms. Allocated memory is still 104.9 MB. Free memory was 70.7 MB in the beginning and 76.1 MB in the end (delta: -5.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:56,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 159.99 ms. Allocated memory is still 104.9 MB. Free memory was 76.1 MB in the beginning and 72.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:56,044 INFO L168 Benchmark]: Boogie Preprocessor took 61.79 ms. Allocated memory is still 104.9 MB. Free memory was 72.8 MB in the beginning and 70.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:56,045 INFO L168 Benchmark]: RCFGBuilder took 1334.27 ms. Allocated memory is still 104.9 MB. Free memory was 70.7 MB in the beginning and 53.6 MB in the end (delta: 17.1 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:56,045 INFO L168 Benchmark]: TraceAbstraction took 10212.93 ms. Allocated memory was 104.9 MB in the beginning and 157.3 MB in the end (delta: 52.4 MB). Free memory was 53.0 MB in the beginning and 63.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 41.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:56,046 INFO L168 Benchmark]: Witness Printer took 227.30 ms. Allocated memory is still 157.3 MB. Free memory was 63.3 MB in the beginning and 51.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:56,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 104.9 MB. Free memory was 78.9 MB in the beginning and 78.9 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 760.84 ms. Allocated memory is still 104.9 MB. Free memory was 70.7 MB in the beginning and 76.1 MB in the end (delta: -5.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 159.99 ms. Allocated memory is still 104.9 MB. Free memory was 76.1 MB in the beginning and 72.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.79 ms. Allocated memory is still 104.9 MB. Free memory was 72.8 MB in the beginning and 70.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1334.27 ms. Allocated memory is still 104.9 MB. Free memory was 70.7 MB in the beginning and 53.6 MB in the end (delta: 17.1 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10212.93 ms. Allocated memory was 104.9 MB in the beginning and 157.3 MB in the end (delta: 52.4 MB). Free memory was 53.0 MB in the beginning and 63.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 41.8 MB. Max. memory is 16.1 GB. * Witness Printer took 227.30 ms. Allocated memory is still 157.3 MB. Free memory was 63.3 MB in the beginning and 51.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 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: 9.8s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1038 SDtfs, 1865 SDslu, 1430 SDs, 0 SdLazy, 3491 SolverSat, 398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.7s 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: 0.1s 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, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.1s 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...