./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-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_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/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 7f777bc0851fa1e32aaa7ec1f7505f1f2e0a2d51 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 20:26:17,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:26:17,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:26:17,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:26:17,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:26:17,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:26:17,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:26:17,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:26:17,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:26:17,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:26:17,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:26:17,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:26:17,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:26:17,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:26:17,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:26:17,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:26:17,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:26:17,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:26:17,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:26:17,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:26:17,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:26:17,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:26:17,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:26:17,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:26:17,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:26:17,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:26:17,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:26:17,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:26:17,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:26:17,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:26:17,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:26:17,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:26:17,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:26:17,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:26:17,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:26:17,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:26:17,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:26:17,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:26:17,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:26:17,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:26:17,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:26:17,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:26:17,204 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:26:17,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:26:17,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:26:17,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:26:17,207 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:26:17,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:26:17,207 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:26:17,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:26:17,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:26:17,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:26:17,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:26:17,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:26:17,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:26:17,209 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:26:17,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:26:17,210 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:26:17,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:26:17,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:26:17,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:26:17,211 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:26:17,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:26:17,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:26:17,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:26:17,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:26:17,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:26:17,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:26:17,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:26:17,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:26:17,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:26:17,213 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_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f777bc0851fa1e32aaa7ec1f7505f1f2e0a2d51 [2020-11-29 20:26:17,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:26:17,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:26:17,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:26:17,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:26:17,576 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:26:17,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2020-11-29 20:26:17,672 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/bin/uautomizer/data/8cda90bca/854643ceb7f348789452c82445c92865/FLAGf91fa3f69 [2020-11-29 20:26:18,412 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:26:18,413 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2020-11-29 20:26:18,432 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/bin/uautomizer/data/8cda90bca/854643ceb7f348789452c82445c92865/FLAGf91fa3f69 [2020-11-29 20:26:18,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/bin/uautomizer/data/8cda90bca/854643ceb7f348789452c82445c92865 [2020-11-29 20:26:18,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:26:18,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:26:18,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:26:18,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:26:18,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:26:18,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:26:18" (1/1) ... [2020-11-29 20:26:18,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ad1400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:18, skipping insertion in model container [2020-11-29 20:26:18,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:26:18" (1/1) ... [2020-11-29 20:26:18,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:26:18,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:26:19,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:26:19,391 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:26:19,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:26:19,649 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:26:19,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:19 WrapperNode [2020-11-29 20:26:19,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:26:19,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:26:19,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:26:19,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:26:19,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:19" (1/1) ... [2020-11-29 20:26:19,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:19" (1/1) ... [2020-11-29 20:26:19,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:26:19,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:26:19,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:26:19,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:26:19,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:19" (1/1) ... [2020-11-29 20:26:19,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:19" (1/1) ... [2020-11-29 20:26:19,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:19" (1/1) ... [2020-11-29 20:26:19,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:19" (1/1) ... [2020-11-29 20:26:19,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:19" (1/1) ... [2020-11-29 20:26:19,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:19" (1/1) ... [2020-11-29 20:26:19,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:19" (1/1) ... [2020-11-29 20:26:19,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:26:19,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:26:19,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:26:19,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:26:19,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/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 20:26:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:26:20,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:26:20,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:26:20,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:26:21,966 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:26:21,967 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-11-29 20:26:21,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:26:21 BoogieIcfgContainer [2020-11-29 20:26:21,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:26:21,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:26:21,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:26:21,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:26:21,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:26:18" (1/3) ... [2020-11-29 20:26:21,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18795b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:26:21, skipping insertion in model container [2020-11-29 20:26:21,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:26:19" (2/3) ... [2020-11-29 20:26:21,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18795b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:26:21, skipping insertion in model container [2020-11-29 20:26:21,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:26:21" (3/3) ... [2020-11-29 20:26:21,984 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+nlh-reducer.c [2020-11-29 20:26:21,998 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:26:22,004 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-11-29 20:26:22,019 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-11-29 20:26:22,071 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:26:22,071 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:26:22,072 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:26:22,072 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:26:22,072 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:26:22,072 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:26:22,073 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:26:22,073 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:26:22,106 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states. [2020-11-29 20:26:22,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:26:22,113 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:22,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:22,115 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 20:26:22,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:22,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1804934597, now seen corresponding path program 1 times [2020-11-29 20:26:22,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:22,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465625151] [2020-11-29 20:26:22,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:22,446 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 20:26:22,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465625151] [2020-11-29 20:26:22,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:22,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:26:22,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354258409] [2020-11-29 20:26:22,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:26:22,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:22,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:26:22,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:26:22,473 INFO L87 Difference]: Start difference. First operand 320 states. Second operand 4 states. [2020-11-29 20:26:23,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:23,445 INFO L93 Difference]: Finished difference Result 331 states and 589 transitions. [2020-11-29 20:26:23,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:26:23,448 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 20:26:23,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:23,464 INFO L225 Difference]: With dead ends: 331 [2020-11-29 20:26:23,465 INFO L226 Difference]: Without dead ends: 298 [2020-11-29 20:26:23,468 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 20:26:23,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-29 20:26:23,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-29 20:26:23,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-29 20:26:23,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 421 transitions. [2020-11-29 20:26:23,554 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 421 transitions. Word has length 7 [2020-11-29 20:26:23,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:23,554 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 421 transitions. [2020-11-29 20:26:23,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:26:23,554 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 421 transitions. [2020-11-29 20:26:23,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 20:26:23,555 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:23,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:23,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:26:23,556 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 20:26:23,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:23,557 INFO L82 PathProgramCache]: Analyzing trace with hash 141330849, now seen corresponding path program 1 times [2020-11-29 20:26:23,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:23,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651108523] [2020-11-29 20:26:23,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:23,653 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 20:26:23,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651108523] [2020-11-29 20:26:23,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:23,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:26:23,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290388220] [2020-11-29 20:26:23,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:26:23,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:23,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:26:23,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:26:23,657 INFO L87 Difference]: Start difference. First operand 298 states and 421 transitions. Second operand 4 states. [2020-11-29 20:26:24,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:24,541 INFO L93 Difference]: Finished difference Result 298 states and 421 transitions. [2020-11-29 20:26:24,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:26:24,546 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-29 20:26:24,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:24,549 INFO L225 Difference]: With dead ends: 298 [2020-11-29 20:26:24,549 INFO L226 Difference]: Without dead ends: 296 [2020-11-29 20:26:24,550 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 20:26:24,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-11-29 20:26:24,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2020-11-29 20:26:24,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-11-29 20:26:24,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 419 transitions. [2020-11-29 20:26:24,575 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 419 transitions. Word has length 8 [2020-11-29 20:26:24,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:24,576 INFO L481 AbstractCegarLoop]: Abstraction has 296 states and 419 transitions. [2020-11-29 20:26:24,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:26:24,576 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 419 transitions. [2020-11-29 20:26:24,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 20:26:24,577 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:24,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:24,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:26:24,578 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 20:26:24,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:24,579 INFO L82 PathProgramCache]: Analyzing trace with hash 118403696, now seen corresponding path program 1 times [2020-11-29 20:26:24,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:24,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611068645] [2020-11-29 20:26:24,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:24,673 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 20:26:24,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611068645] [2020-11-29 20:26:24,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:24,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:26:24,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016789508] [2020-11-29 20:26:24,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:26:24,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:24,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:26:24,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:26:24,676 INFO L87 Difference]: Start difference. First operand 296 states and 419 transitions. Second operand 5 states. [2020-11-29 20:26:25,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:25,555 INFO L93 Difference]: Finished difference Result 304 states and 427 transitions. [2020-11-29 20:26:25,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:26:25,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-11-29 20:26:25,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:25,558 INFO L225 Difference]: With dead ends: 304 [2020-11-29 20:26:25,558 INFO L226 Difference]: Without dead ends: 296 [2020-11-29 20:26:25,559 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 20:26:25,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-11-29 20:26:25,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 291. [2020-11-29 20:26:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-11-29 20:26:25,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 354 transitions. [2020-11-29 20:26:25,597 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 354 transitions. Word has length 8 [2020-11-29 20:26:25,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:25,597 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 354 transitions. [2020-11-29 20:26:25,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:26:25,598 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 354 transitions. [2020-11-29 20:26:25,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 20:26:25,598 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:25,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:25,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:26:25,599 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 20:26:25,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:25,600 INFO L82 PathProgramCache]: Analyzing trace with hash 86295087, now seen corresponding path program 1 times [2020-11-29 20:26:25,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:25,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783289188] [2020-11-29 20:26:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:25,709 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 20:26:25,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783289188] [2020-11-29 20:26:25,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:25,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:26:25,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428220267] [2020-11-29 20:26:25,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:26:25,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:25,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:26:25,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:26:25,712 INFO L87 Difference]: Start difference. First operand 291 states and 354 transitions. Second operand 4 states. [2020-11-29 20:26:26,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:26,244 INFO L93 Difference]: Finished difference Result 296 states and 359 transitions. [2020-11-29 20:26:26,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:26:26,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-29 20:26:26,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:26,247 INFO L225 Difference]: With dead ends: 296 [2020-11-29 20:26:26,248 INFO L226 Difference]: Without dead ends: 294 [2020-11-29 20:26:26,249 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 20:26:26,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-11-29 20:26:26,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-11-29 20:26:26,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-11-29 20:26:26,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 357 transitions. [2020-11-29 20:26:26,265 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 357 transitions. Word has length 9 [2020-11-29 20:26:26,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:26,265 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 357 transitions. [2020-11-29 20:26:26,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:26:26,265 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 357 transitions. [2020-11-29 20:26:26,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 20:26:26,266 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:26,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:26,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:26:26,267 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 20:26:26,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:26,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1325389363, now seen corresponding path program 1 times [2020-11-29 20:26:26,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:26,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943868269] [2020-11-29 20:26:26,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:26,326 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 20:26:26,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943868269] [2020-11-29 20:26:26,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:26,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:26:26,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170695807] [2020-11-29 20:26:26,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:26:26,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:26,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:26:26,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:26:26,329 INFO L87 Difference]: Start difference. First operand 294 states and 357 transitions. Second operand 5 states. [2020-11-29 20:26:27,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:27,201 INFO L93 Difference]: Finished difference Result 294 states and 357 transitions. [2020-11-29 20:26:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:26:27,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-29 20:26:27,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:27,214 INFO L225 Difference]: With dead ends: 294 [2020-11-29 20:26:27,215 INFO L226 Difference]: Without dead ends: 292 [2020-11-29 20:26:27,215 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 20:26:27,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-11-29 20:26:27,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2020-11-29 20:26:27,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-11-29 20:26:27,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 355 transitions. [2020-11-29 20:26:27,228 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 355 transitions. Word has length 11 [2020-11-29 20:26:27,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:27,228 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 355 transitions. [2020-11-29 20:26:27,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:26:27,229 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 355 transitions. [2020-11-29 20:26:27,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 20:26:27,230 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:27,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:27,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:26:27,230 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 20:26:27,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:27,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1862596621, now seen corresponding path program 1 times [2020-11-29 20:26:27,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:27,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407732126] [2020-11-29 20:26:27,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:27,343 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 20:26:27,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407732126] [2020-11-29 20:26:27,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:27,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:26:27,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604917643] [2020-11-29 20:26:27,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:26:27,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:27,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:26:27,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:26:27,346 INFO L87 Difference]: Start difference. First operand 292 states and 355 transitions. Second operand 4 states. [2020-11-29 20:26:27,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:27,798 INFO L93 Difference]: Finished difference Result 292 states and 355 transitions. [2020-11-29 20:26:27,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:26:27,798 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-29 20:26:27,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:27,801 INFO L225 Difference]: With dead ends: 292 [2020-11-29 20:26:27,801 INFO L226 Difference]: Without dead ends: 288 [2020-11-29 20:26:27,802 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 20:26:27,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-11-29 20:26:27,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2020-11-29 20:26:27,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-11-29 20:26:27,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 351 transitions. [2020-11-29 20:26:27,814 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 351 transitions. Word has length 12 [2020-11-29 20:26:27,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:27,814 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 351 transitions. [2020-11-29 20:26:27,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:26:27,814 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 351 transitions. [2020-11-29 20:26:27,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 20:26:27,815 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:27,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:27,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:26:27,816 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 20:26:27,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:27,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1887018870, now seen corresponding path program 1 times [2020-11-29 20:26:27,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:27,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613784634] [2020-11-29 20:26:27,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:27,878 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 20:26:27,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613784634] [2020-11-29 20:26:27,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:27,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:26:27,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110369160] [2020-11-29 20:26:27,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:26:27,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:27,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:26:27,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:26:27,881 INFO L87 Difference]: Start difference. First operand 288 states and 351 transitions. Second operand 5 states. [2020-11-29 20:26:28,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:28,774 INFO L93 Difference]: Finished difference Result 305 states and 370 transitions. [2020-11-29 20:26:28,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:26:28,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-29 20:26:28,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:28,777 INFO L225 Difference]: With dead ends: 305 [2020-11-29 20:26:28,777 INFO L226 Difference]: Without dead ends: 303 [2020-11-29 20:26:28,778 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 20:26:28,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-11-29 20:26:28,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 286. [2020-11-29 20:26:28,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-11-29 20:26:28,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 349 transitions. [2020-11-29 20:26:28,788 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 349 transitions. Word has length 13 [2020-11-29 20:26:28,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:28,788 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 349 transitions. [2020-11-29 20:26:28,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:26:28,789 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 349 transitions. [2020-11-29 20:26:28,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 20:26:28,791 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:28,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:28,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 20:26:28,792 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 20:26:28,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:28,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1884925558, now seen corresponding path program 1 times [2020-11-29 20:26:28,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:28,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344794633] [2020-11-29 20:26:28,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:28,892 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 20:26:28,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344794633] [2020-11-29 20:26:28,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:28,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:26:28,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482733382] [2020-11-29 20:26:28,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:26:28,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:28,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:26:28,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:26:28,894 INFO L87 Difference]: Start difference. First operand 286 states and 349 transitions. Second operand 5 states. [2020-11-29 20:26:29,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:29,783 INFO L93 Difference]: Finished difference Result 286 states and 349 transitions. [2020-11-29 20:26:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:26:29,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-29 20:26:29,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:29,786 INFO L225 Difference]: With dead ends: 286 [2020-11-29 20:26:29,786 INFO L226 Difference]: Without dead ends: 284 [2020-11-29 20:26:29,787 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 20:26:29,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-11-29 20:26:29,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2020-11-29 20:26:29,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-11-29 20:26:29,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 347 transitions. [2020-11-29 20:26:29,811 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 347 transitions. Word has length 13 [2020-11-29 20:26:29,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:29,812 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 347 transitions. [2020-11-29 20:26:29,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:26:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 347 transitions. [2020-11-29 20:26:29,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 20:26:29,815 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:29,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:29,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 20:26:29,816 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 20:26:29,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:29,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1363999043, now seen corresponding path program 1 times [2020-11-29 20:26:29,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:29,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144103325] [2020-11-29 20:26:29,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:30,014 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 20:26:30,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144103325] [2020-11-29 20:26:30,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:30,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 20:26:30,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986463061] [2020-11-29 20:26:30,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:26:30,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:30,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:26:30,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:26:30,016 INFO L87 Difference]: Start difference. First operand 284 states and 347 transitions. Second operand 6 states. [2020-11-29 20:26:30,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:30,756 INFO L93 Difference]: Finished difference Result 308 states and 373 transitions. [2020-11-29 20:26:30,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 20:26:30,757 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-29 20:26:30,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:30,759 INFO L225 Difference]: With dead ends: 308 [2020-11-29 20:26:30,759 INFO L226 Difference]: Without dead ends: 306 [2020-11-29 20:26:30,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:26:30,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-11-29 20:26:30,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 284. [2020-11-29 20:26:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-11-29 20:26:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 347 transitions. [2020-11-29 20:26:30,769 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 347 transitions. Word has length 13 [2020-11-29 20:26:30,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:30,770 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 347 transitions. [2020-11-29 20:26:30,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:26:30,770 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 347 transitions. [2020-11-29 20:26:30,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 20:26:30,771 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:30,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:30,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 20:26:30,771 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 20:26:30,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:30,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1633873881, now seen corresponding path program 1 times [2020-11-29 20:26:30,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:30,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138603295] [2020-11-29 20:26:30,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:30,840 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 20:26:30,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138603295] [2020-11-29 20:26:30,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:30,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:26:30,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179387619] [2020-11-29 20:26:30,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:26:30,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:30,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:26:30,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:26:30,842 INFO L87 Difference]: Start difference. First operand 284 states and 347 transitions. Second operand 5 states. [2020-11-29 20:26:31,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:31,781 INFO L93 Difference]: Finished difference Result 307 states and 372 transitions. [2020-11-29 20:26:31,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:26:31,790 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-29 20:26:31,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:31,792 INFO L225 Difference]: With dead ends: 307 [2020-11-29 20:26:31,793 INFO L226 Difference]: Without dead ends: 305 [2020-11-29 20:26:31,793 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 20:26:31,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-11-29 20:26:31,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 282. [2020-11-29 20:26:31,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-29 20:26:31,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 345 transitions. [2020-11-29 20:26:31,804 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 345 transitions. Word has length 14 [2020-11-29 20:26:31,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:31,804 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 345 transitions. [2020-11-29 20:26:31,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:26:31,804 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 345 transitions. [2020-11-29 20:26:31,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 20:26:31,805 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:31,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:31,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 20:26:31,806 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 20:26:31,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:31,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1631963286, now seen corresponding path program 1 times [2020-11-29 20:26:31,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:31,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186163726] [2020-11-29 20:26:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:32,017 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 20:26:32,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186163726] [2020-11-29 20:26:32,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:32,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 20:26:32,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133828000] [2020-11-29 20:26:32,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:26:32,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:32,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:26:32,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:26:32,020 INFO L87 Difference]: Start difference. First operand 282 states and 345 transitions. Second operand 6 states. [2020-11-29 20:26:32,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:32,719 INFO L93 Difference]: Finished difference Result 316 states and 383 transitions. [2020-11-29 20:26:32,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 20:26:32,719 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-29 20:26:32,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:32,722 INFO L225 Difference]: With dead ends: 316 [2020-11-29 20:26:32,722 INFO L226 Difference]: Without dead ends: 314 [2020-11-29 20:26:32,723 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 20:26:32,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-11-29 20:26:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 290. [2020-11-29 20:26:32,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-11-29 20:26:32,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 355 transitions. [2020-11-29 20:26:32,733 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 355 transitions. Word has length 14 [2020-11-29 20:26:32,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:32,734 INFO L481 AbstractCegarLoop]: Abstraction has 290 states and 355 transitions. [2020-11-29 20:26:32,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:26:32,734 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 355 transitions. [2020-11-29 20:26:32,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 20:26:32,737 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:32,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:32,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 20:26:32,738 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 20:26:32,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:32,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1696856026, now seen corresponding path program 1 times [2020-11-29 20:26:32,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:32,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237564485] [2020-11-29 20:26:32,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:32,948 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 20:26:32,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237564485] [2020-11-29 20:26:32,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:32,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 20:26:32,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953766531] [2020-11-29 20:26:32,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:26:32,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:32,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:26:32,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:26:32,950 INFO L87 Difference]: Start difference. First operand 290 states and 355 transitions. Second operand 6 states. [2020-11-29 20:26:33,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:33,701 INFO L93 Difference]: Finished difference Result 300 states and 365 transitions. [2020-11-29 20:26:33,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:26:33,701 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-29 20:26:33,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:33,704 INFO L225 Difference]: With dead ends: 300 [2020-11-29 20:26:33,704 INFO L226 Difference]: Without dead ends: 296 [2020-11-29 20:26:33,705 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 20:26:33,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-11-29 20:26:33,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 291. [2020-11-29 20:26:33,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-11-29 20:26:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 356 transitions. [2020-11-29 20:26:33,715 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 356 transitions. Word has length 14 [2020-11-29 20:26:33,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:33,718 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 356 transitions. [2020-11-29 20:26:33,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:26:33,718 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 356 transitions. [2020-11-29 20:26:33,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 20:26:33,719 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:33,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:33,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 20:26:33,720 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 20:26:33,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:33,721 INFO L82 PathProgramCache]: Analyzing trace with hash -889511086, now seen corresponding path program 1 times [2020-11-29 20:26:33,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:33,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842349591] [2020-11-29 20:26:33,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:33,885 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 20:26:33,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842349591] [2020-11-29 20:26:33,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:33,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 20:26:33,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951615002] [2020-11-29 20:26:33,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:26:33,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:33,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:26:33,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:26:33,886 INFO L87 Difference]: Start difference. First operand 291 states and 356 transitions. Second operand 6 states. [2020-11-29 20:26:34,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:34,518 INFO L93 Difference]: Finished difference Result 317 states and 384 transitions. [2020-11-29 20:26:34,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 20:26:34,518 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-29 20:26:34,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:34,521 INFO L225 Difference]: With dead ends: 317 [2020-11-29 20:26:34,522 INFO L226 Difference]: Without dead ends: 315 [2020-11-29 20:26:34,522 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 20:26:34,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-11-29 20:26:34,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 294. [2020-11-29 20:26:34,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-11-29 20:26:34,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 359 transitions. [2020-11-29 20:26:34,534 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 359 transitions. Word has length 15 [2020-11-29 20:26:34,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:34,535 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 359 transitions. [2020-11-29 20:26:34,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:26:34,540 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 359 transitions. [2020-11-29 20:26:34,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 20:26:34,546 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:34,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:34,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 20:26:34,547 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 20:26:34,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:34,548 INFO L82 PathProgramCache]: Analyzing trace with hash 653844729, now seen corresponding path program 1 times [2020-11-29 20:26:34,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:34,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739953371] [2020-11-29 20:26:34,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:34,592 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 20:26:34,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739953371] [2020-11-29 20:26:34,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:34,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:26:34,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838115697] [2020-11-29 20:26:34,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:26:34,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:34,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:26:34,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:26:34,595 INFO L87 Difference]: Start difference. First operand 294 states and 359 transitions. Second operand 4 states. [2020-11-29 20:26:34,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:34,900 INFO L93 Difference]: Finished difference Result 294 states and 359 transitions. [2020-11-29 20:26:34,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:26:34,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-29 20:26:34,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:34,903 INFO L225 Difference]: With dead ends: 294 [2020-11-29 20:26:34,903 INFO L226 Difference]: Without dead ends: 292 [2020-11-29 20:26:34,904 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 20:26:34,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-11-29 20:26:34,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2020-11-29 20:26:34,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-11-29 20:26:34,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 357 transitions. [2020-11-29 20:26:34,916 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 357 transitions. Word has length 16 [2020-11-29 20:26:34,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:34,916 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 357 transitions. [2020-11-29 20:26:34,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:26:34,917 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 357 transitions. [2020-11-29 20:26:34,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 20:26:34,917 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:34,918 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 20:26:34,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 20:26:34,918 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 20:26:34,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:34,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1205643748, now seen corresponding path program 1 times [2020-11-29 20:26:34,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:34,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415500313] [2020-11-29 20:26:34,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:34,970 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 20:26:34,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415500313] [2020-11-29 20:26:34,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:34,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:26:34,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375326229] [2020-11-29 20:26:34,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:26:34,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:34,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:26:34,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:26:34,972 INFO L87 Difference]: Start difference. First operand 292 states and 357 transitions. Second operand 4 states. [2020-11-29 20:26:35,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:35,480 INFO L93 Difference]: Finished difference Result 292 states and 357 transitions. [2020-11-29 20:26:35,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:26:35,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-29 20:26:35,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:35,483 INFO L225 Difference]: With dead ends: 292 [2020-11-29 20:26:35,483 INFO L226 Difference]: Without dead ends: 288 [2020-11-29 20:26:35,484 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 20:26:35,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-11-29 20:26:35,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2020-11-29 20:26:35,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-11-29 20:26:35,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 353 transitions. [2020-11-29 20:26:35,494 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 353 transitions. Word has length 17 [2020-11-29 20:26:35,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:35,495 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 353 transitions. [2020-11-29 20:26:35,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:26:35,495 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 353 transitions. [2020-11-29 20:26:35,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 20:26:35,496 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:35,496 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 20:26:35,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 20:26:35,497 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 20:26:35,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:35,497 INFO L82 PathProgramCache]: Analyzing trace with hash -947481395, now seen corresponding path program 1 times [2020-11-29 20:26:35,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:35,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24004761] [2020-11-29 20:26:35,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:35,564 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 20:26:35,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24004761] [2020-11-29 20:26:35,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:35,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 20:26:35,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53342968] [2020-11-29 20:26:35,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:26:35,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:35,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:26:35,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:26:35,566 INFO L87 Difference]: Start difference. First operand 288 states and 353 transitions. Second operand 6 states. [2020-11-29 20:26:36,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:36,250 INFO L93 Difference]: Finished difference Result 288 states and 353 transitions. [2020-11-29 20:26:36,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:26:36,251 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-29 20:26:36,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:36,253 INFO L225 Difference]: With dead ends: 288 [2020-11-29 20:26:36,253 INFO L226 Difference]: Without dead ends: 286 [2020-11-29 20:26:36,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:26:36,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-11-29 20:26:36,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-11-29 20:26:36,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-11-29 20:26:36,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 348 transitions. [2020-11-29 20:26:36,264 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 348 transitions. Word has length 17 [2020-11-29 20:26:36,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:36,265 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 348 transitions. [2020-11-29 20:26:36,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:26:36,265 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 348 transitions. [2020-11-29 20:26:36,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 20:26:36,266 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:36,266 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 20:26:36,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 20:26:36,266 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 20:26:36,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:36,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1298626230, now seen corresponding path program 1 times [2020-11-29 20:26:36,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:36,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221141106] [2020-11-29 20:26:36,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:36,356 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 20:26:36,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221141106] [2020-11-29 20:26:36,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:36,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 20:26:36,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058323228] [2020-11-29 20:26:36,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:26:36,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:36,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:26:36,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:26:36,359 INFO L87 Difference]: Start difference. First operand 283 states and 348 transitions. Second operand 6 states. [2020-11-29 20:26:37,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:37,200 INFO L93 Difference]: Finished difference Result 298 states and 365 transitions. [2020-11-29 20:26:37,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:26:37,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-29 20:26:37,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:37,202 INFO L225 Difference]: With dead ends: 298 [2020-11-29 20:26:37,202 INFO L226 Difference]: Without dead ends: 296 [2020-11-29 20:26:37,203 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 20:26:37,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-11-29 20:26:37,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 278. [2020-11-29 20:26:37,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-11-29 20:26:37,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 343 transitions. [2020-11-29 20:26:37,212 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 343 transitions. Word has length 18 [2020-11-29 20:26:37,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:37,212 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 343 transitions. [2020-11-29 20:26:37,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:26:37,213 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 343 transitions. [2020-11-29 20:26:37,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 20:26:37,213 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:37,213 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 20:26:37,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 20:26:37,214 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 20:26:37,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:37,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1791548930, now seen corresponding path program 1 times [2020-11-29 20:26:37,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:37,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313587728] [2020-11-29 20:26:37,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:37,288 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 20:26:37,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313587728] [2020-11-29 20:26:37,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:37,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 20:26:37,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450335822] [2020-11-29 20:26:37,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:26:37,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:37,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:26:37,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:26:37,290 INFO L87 Difference]: Start difference. First operand 278 states and 343 transitions. Second operand 6 states. [2020-11-29 20:26:38,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:38,111 INFO L93 Difference]: Finished difference Result 290 states and 357 transitions. [2020-11-29 20:26:38,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:26:38,111 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-29 20:26:38,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:38,113 INFO L225 Difference]: With dead ends: 290 [2020-11-29 20:26:38,113 INFO L226 Difference]: Without dead ends: 288 [2020-11-29 20:26:38,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:26:38,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-11-29 20:26:38,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 273. [2020-11-29 20:26:38,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-11-29 20:26:38,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 337 transitions. [2020-11-29 20:26:38,122 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 337 transitions. Word has length 18 [2020-11-29 20:26:38,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:38,122 INFO L481 AbstractCegarLoop]: Abstraction has 273 states and 337 transitions. [2020-11-29 20:26:38,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:26:38,123 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 337 transitions. [2020-11-29 20:26:38,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 20:26:38,123 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:38,124 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 20:26:38,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 20:26:38,124 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 20:26:38,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:38,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1856441670, now seen corresponding path program 1 times [2020-11-29 20:26:38,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:38,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011291889] [2020-11-29 20:26:38,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:38,224 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 20:26:38,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011291889] [2020-11-29 20:26:38,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:38,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 20:26:38,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593908350] [2020-11-29 20:26:38,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:26:38,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:38,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:26:38,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:26:38,226 INFO L87 Difference]: Start difference. First operand 273 states and 337 transitions. Second operand 6 states. [2020-11-29 20:26:38,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:38,882 INFO L93 Difference]: Finished difference Result 273 states and 337 transitions. [2020-11-29 20:26:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:26:38,883 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-29 20:26:38,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:38,886 INFO L225 Difference]: With dead ends: 273 [2020-11-29 20:26:38,887 INFO L226 Difference]: Without dead ends: 250 [2020-11-29 20:26:38,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:26:38,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-11-29 20:26:38,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-11-29 20:26:38,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-29 20:26:38,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 250 transitions. [2020-11-29 20:26:38,894 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 250 transitions. Word has length 18 [2020-11-29 20:26:38,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:38,894 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 250 transitions. [2020-11-29 20:26:38,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:26:38,895 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 250 transitions. [2020-11-29 20:26:38,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-11-29 20:26:38,901 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:38,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:38,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-29 20:26:38,902 INFO L429 AbstractCegarLoop]: === Iteration 20 === [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 20:26:38,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:38,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1979399377, now seen corresponding path program 1 times [2020-11-29 20:26:38,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:38,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397625631] [2020-11-29 20:26:38,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:41,778 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 20:26:41,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397625631] [2020-11-29 20:26:41,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:41,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2020-11-29 20:26:41,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869304998] [2020-11-29 20:26:41,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-11-29 20:26:41,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:41,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-11-29 20:26:41,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1834, Invalid=2072, Unknown=0, NotChecked=0, Total=3906 [2020-11-29 20:26:41,796 INFO L87 Difference]: Start difference. First operand 250 states and 250 transitions. Second operand 63 states. [2020-11-29 20:26:43,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:43,374 INFO L93 Difference]: Finished difference Result 251 states and 251 transitions. [2020-11-29 20:26:43,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-11-29 20:26:43,375 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 244 [2020-11-29 20:26:43,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:43,376 INFO L225 Difference]: With dead ends: 251 [2020-11-29 20:26:43,376 INFO L226 Difference]: Without dead ends: 249 [2020-11-29 20:26:43,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1896, Invalid=2136, Unknown=0, NotChecked=0, Total=4032 [2020-11-29 20:26:43,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-11-29 20:26:43,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 248. [2020-11-29 20:26:43,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-11-29 20:26:43,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 248 transitions. [2020-11-29 20:26:43,382 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 248 transitions. Word has length 244 [2020-11-29 20:26:43,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:43,382 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 248 transitions. [2020-11-29 20:26:43,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-11-29 20:26:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 248 transitions. [2020-11-29 20:26:43,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-11-29 20:26:43,386 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:26:43,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:43,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-29 20:26:43,387 INFO L429 AbstractCegarLoop]: === Iteration 21 === [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 20:26:43,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:43,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1231831159, now seen corresponding path program 1 times [2020-11-29 20:26:43,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:43,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228260980] [2020-11-29 20:26:43,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:44,549 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 20:26:44,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228260980] [2020-11-29 20:26:44,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:44,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 20:26:44,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856696939] [2020-11-29 20:26:44,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 20:26:44,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:44,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 20:26:44,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:26:44,553 INFO L87 Difference]: Start difference. First operand 248 states and 248 transitions. Second operand 7 states. [2020-11-29 20:26:45,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:45,254 INFO L93 Difference]: Finished difference Result 250 states and 250 transitions. [2020-11-29 20:26:45,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:26:45,255 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 245 [2020-11-29 20:26:45,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:26:45,255 INFO L225 Difference]: With dead ends: 250 [2020-11-29 20:26:45,255 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:26:45,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 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 20:26:45,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:26:45,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:26:45,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:26:45,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:26:45,258 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 245 [2020-11-29 20:26:45,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:26:45,258 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:26:45,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 20:26:45,258 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:26:45,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:26:45,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-29 20:26:45,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:26:45,508 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 15 [2020-11-29 20:26:45,659 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 15 [2020-11-29 20:26:45,745 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,746 INFO L274 CegarLoopResult]: For program point L1555(lines 1555 2805) no Hoare annotation was computed. [2020-11-29 20:26:45,746 INFO L274 CegarLoopResult]: For program point L2546(lines 2546 2653) no Hoare annotation was computed. [2020-11-29 20:26:45,746 INFO L274 CegarLoopResult]: For program point L2480(lines 2480 2663) no Hoare annotation was computed. [2020-11-29 20:26:45,746 INFO L274 CegarLoopResult]: For program point L432(lines 432 2978) no Hoare annotation was computed. [2020-11-29 20:26:45,746 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,746 INFO L274 CegarLoopResult]: For program point L697(lines 697 2937) no Hoare annotation was computed. [2020-11-29 20:26:45,746 INFO L274 CegarLoopResult]: For program point L1688(lines 1688 2785) no Hoare annotation was computed. [2020-11-29 20:26:45,746 INFO L274 CegarLoopResult]: For program point L1622(lines 1622 2795) no Hoare annotation was computed. [2020-11-29 20:26:45,746 INFO L274 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-11-29 20:26:45,746 INFO L274 CegarLoopResult]: For program point L1953(lines 1953 2744) no Hoare annotation was computed. [2020-11-29 20:26:45,746 INFO L274 CegarLoopResult]: For program point L830(lines 830 2917) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L764(lines 764 2927) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L2614(lines 2614 2643) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L2218(lines 2218 2703) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L1095(lines 1095 2876) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L1360(lines 1360 2835) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L2351(lines 2351 2683) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L2285(lines 2285 2693) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L502(lines 502 2967) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L1493(lines 1493 2815) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L1427(lines 1427 2825) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L1758(lines 1758 2774) no Hoare annotation was computed. [2020-11-29 20:26:45,747 INFO L274 CegarLoopResult]: For program point L635(lines 635 2947) no Hoare annotation was computed. [2020-11-29 20:26:45,748 INFO L274 CegarLoopResult]: For program point L569(lines 569 2957) no Hoare annotation was computed. [2020-11-29 20:26:45,748 INFO L277 CegarLoopResult]: At program point L2617(lines 16 3008) the Hoare annotation is: true [2020-11-29 20:26:45,748 INFO L274 CegarLoopResult]: For program point L2023(lines 2023 2733) no Hoare annotation was computed. [2020-11-29 20:26:45,748 INFO L274 CegarLoopResult]: For program point L900(lines 900 2906) no Hoare annotation was computed. [2020-11-29 20:26:45,748 INFO L274 CegarLoopResult]: For program point L1165(lines 1165 2865) no Hoare annotation was computed. [2020-11-29 20:26:45,748 INFO L274 CegarLoopResult]: For program point L2156(lines 2156 2713) no Hoare annotation was computed. [2020-11-29 20:26:45,748 INFO L274 CegarLoopResult]: For program point L2090(lines 2090 2723) no Hoare annotation was computed. [2020-11-29 20:26:45,748 INFO L274 CegarLoopResult]: For program point L2421(lines 2421 2672) no Hoare annotation was computed. [2020-11-29 20:26:45,748 INFO L274 CegarLoopResult]: For program point L307(lines 307 2997) no Hoare annotation was computed. [2020-11-29 20:26:45,749 INFO L274 CegarLoopResult]: For program point L1298(lines 1298 2845) no Hoare annotation was computed. [2020-11-29 20:26:45,749 INFO L274 CegarLoopResult]: For program point L1232(lines 1232 2855) no Hoare annotation was computed. [2020-11-29 20:26:45,749 INFO L274 CegarLoopResult]: For program point L1563(lines 1563 2804) no Hoare annotation was computed. [2020-11-29 20:26:45,750 INFO L274 CegarLoopResult]: For program point L440(lines 440 2977) no Hoare annotation was computed. [2020-11-29 20:26:45,750 INFO L274 CegarLoopResult]: For program point L374(lines 374 2987) no Hoare annotation was computed. [2020-11-29 20:26:45,750 INFO L274 CegarLoopResult]: For program point L1828(lines 1828 2763) no Hoare annotation was computed. [2020-11-29 20:26:45,750 INFO L274 CegarLoopResult]: For program point L705(lines 705 2936) no Hoare annotation was computed. [2020-11-29 20:26:45,750 INFO L274 CegarLoopResult]: For program point L45(lines 45 55) no Hoare annotation was computed. [2020-11-29 20:26:45,751 INFO L274 CegarLoopResult]: For program point L970(lines 970 2895) no Hoare annotation was computed. [2020-11-29 20:26:45,751 INFO L274 CegarLoopResult]: For program point L1961(lines 1961 2743) no Hoare annotation was computed. [2020-11-29 20:26:45,751 INFO L274 CegarLoopResult]: For program point L1895(lines 1895 2753) no Hoare annotation was computed. [2020-11-29 20:26:45,751 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,751 INFO L274 CegarLoopResult]: For program point L2226(lines 2226 2702) no Hoare annotation was computed. [2020-11-29 20:26:45,751 INFO L274 CegarLoopResult]: For program point L1103(lines 1103 2875) no Hoare annotation was computed. [2020-11-29 20:26:45,752 INFO L274 CegarLoopResult]: For program point L1037(lines 1037 2885) no Hoare annotation was computed. [2020-11-29 20:26:45,752 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,752 INFO L274 CegarLoopResult]: For program point L2623(lines 2623 2642) no Hoare annotation was computed. [2020-11-29 20:26:45,752 INFO L274 CegarLoopResult]: For program point L2491(lines 2491 2661) no Hoare annotation was computed. [2020-11-29 20:26:45,752 INFO L274 CegarLoopResult]: For program point L1368(lines 1368 2834) no Hoare annotation was computed. [2020-11-29 20:26:45,752 INFO L274 CegarLoopResult]: For program point L1633(lines 1633 2793) no Hoare annotation was computed. [2020-11-29 20:26:45,752 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,753 INFO L274 CegarLoopResult]: For program point L2558(lines 2558 2651) no Hoare annotation was computed. [2020-11-29 20:26:45,753 INFO L274 CegarLoopResult]: For program point L510(lines 510 2966) no Hoare annotation was computed. [2020-11-29 20:26:45,753 INFO L274 CegarLoopResult]: For program point L246(lines 246 281) no Hoare annotation was computed. [2020-11-29 20:26:45,753 INFO L274 CegarLoopResult]: For program point L775(lines 775 2925) no Hoare annotation was computed. [2020-11-29 20:26:45,753 INFO L274 CegarLoopResult]: For program point L1766(lines 1766 2773) no Hoare annotation was computed. [2020-11-29 20:26:45,753 INFO L274 CegarLoopResult]: For program point L1700(lines 1700 2783) no Hoare annotation was computed. [2020-11-29 20:26:45,754 INFO L270 CegarLoopResult]: At program point L2625(lines 25 3002) 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 20:26:45,754 INFO L274 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-11-29 20:26:45,754 INFO L274 CegarLoopResult]: For program point L2031(lines 2031 2732) no Hoare annotation was computed. [2020-11-29 20:26:45,754 INFO L274 CegarLoopResult]: For program point L908(lines 908 2905) no Hoare annotation was computed. [2020-11-29 20:26:45,754 INFO L274 CegarLoopResult]: For program point L842(lines 842 2915) no Hoare annotation was computed. [2020-11-29 20:26:45,754 INFO L274 CegarLoopResult]: For program point L2296(lines 2296 2691) no Hoare annotation was computed. [2020-11-29 20:26:45,755 INFO L274 CegarLoopResult]: For program point L1173(lines 1173 2864) no Hoare annotation was computed. [2020-11-29 20:26:45,755 INFO L274 CegarLoopResult]: For program point L1438(lines 1438 2823) no Hoare annotation was computed. [2020-11-29 20:26:45,755 INFO L274 CegarLoopResult]: For program point L2429(lines 2429 2671) no Hoare annotation was computed. [2020-11-29 20:26:45,755 INFO L274 CegarLoopResult]: For program point L315(lines 315 2996) no Hoare annotation was computed. [2020-11-29 20:26:45,755 INFO L274 CegarLoopResult]: For program point L2363(lines 2363 2681) no Hoare annotation was computed. [2020-11-29 20:26:45,755 INFO L274 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-11-29 20:26:45,756 INFO L274 CegarLoopResult]: For program point L580(lines 580 2955) no Hoare annotation was computed. [2020-11-29 20:26:45,756 INFO L274 CegarLoopResult]: For program point L1571(lines 1571 2803) no Hoare annotation was computed. [2020-11-29 20:26:45,756 INFO L274 CegarLoopResult]: For program point L1505(lines 1505 2813) no Hoare annotation was computed. [2020-11-29 20:26:45,756 INFO L274 CegarLoopResult]: For program point L1836(lines 1836 2762) no Hoare annotation was computed. [2020-11-29 20:26:45,756 INFO L274 CegarLoopResult]: For program point L713(lines 713 2935) no Hoare annotation was computed. [2020-11-29 20:26:45,756 INFO L274 CegarLoopResult]: For program point L647(lines 647 2945) no Hoare annotation was computed. [2020-11-29 20:26:45,756 INFO L274 CegarLoopResult]: For program point L2101(lines 2101 2721) no Hoare annotation was computed. [2020-11-29 20:26:45,757 INFO L274 CegarLoopResult]: For program point L978(lines 978 2894) no Hoare annotation was computed. [2020-11-29 20:26:45,757 INFO L274 CegarLoopResult]: For program point L1243(lines 1243 2853) no Hoare annotation was computed. [2020-11-29 20:26:45,757 INFO L274 CegarLoopResult]: For program point L2234(lines 2234 2701) no Hoare annotation was computed. [2020-11-29 20:26:45,757 INFO L274 CegarLoopResult]: For program point L2168(lines 2168 2711) no Hoare annotation was computed. [2020-11-29 20:26:45,757 INFO L274 CegarLoopResult]: For program point L2631(lines 2631 2641) no Hoare annotation was computed. [2020-11-29 20:26:45,757 INFO L274 CegarLoopResult]: For program point L2499(lines 2499 2660) no Hoare annotation was computed. [2020-11-29 20:26:45,758 INFO L274 CegarLoopResult]: For program point L385(lines 385 2985) no Hoare annotation was computed. [2020-11-29 20:26:45,758 INFO L274 CegarLoopResult]: For program point L1376(lines 1376 2833) no Hoare annotation was computed. [2020-11-29 20:26:45,758 INFO L274 CegarLoopResult]: For program point L1310(lines 1310 2843) no Hoare annotation was computed. [2020-11-29 20:26:45,758 INFO L274 CegarLoopResult]: For program point L253(lines 253 275) no Hoare annotation was computed. [2020-11-29 20:26:45,758 INFO L274 CegarLoopResult]: For program point L1641(lines 1641 2792) no Hoare annotation was computed. [2020-11-29 20:26:45,758 INFO L274 CegarLoopResult]: For program point L518(lines 518 2965) no Hoare annotation was computed. [2020-11-29 20:26:45,758 INFO L274 CegarLoopResult]: For program point L452(lines 452 2975) no Hoare annotation was computed. [2020-11-29 20:26:45,759 INFO L274 CegarLoopResult]: For program point L1906(lines 1906 2751) no Hoare annotation was computed. [2020-11-29 20:26:45,759 INFO L274 CegarLoopResult]: For program point L783(lines 783 2924) no Hoare annotation was computed. [2020-11-29 20:26:45,759 INFO L274 CegarLoopResult]: For program point L1048(lines 1048 2883) no Hoare annotation was computed. [2020-11-29 20:26:45,759 INFO L274 CegarLoopResult]: For program point L2039(lines 2039 2731) no Hoare annotation was computed. [2020-11-29 20:26:45,759 INFO L274 CegarLoopResult]: For program point L1973(lines 1973 2741) no Hoare annotation was computed. [2020-11-29 20:26:45,759 INFO L270 CegarLoopResult]: At program point L2634(lines 64 3001) the Hoare annotation is: (let ((.cse0 (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0))) (or (and .cse0 (<= 1 ULTIMATE.start_main_~main__t~0)) (and .cse0 (= ULTIMATE.start_main_~main__t~0 0)))) [2020-11-29 20:26:45,760 INFO L274 CegarLoopResult]: For program point L2304(lines 2304 2690) no Hoare annotation was computed. [2020-11-29 20:26:45,760 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:26:45,760 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,760 INFO L274 CegarLoopResult]: For program point L1181(lines 1181 2863) no Hoare annotation was computed. [2020-11-29 20:26:45,760 INFO L274 CegarLoopResult]: For program point L1115(lines 1115 2873) no Hoare annotation was computed. [2020-11-29 20:26:45,761 INFO L274 CegarLoopResult]: For program point L2569(lines 2569 2649) no Hoare annotation was computed. [2020-11-29 20:26:45,761 INFO L274 CegarLoopResult]: For program point L1446(lines 1446 2822) no Hoare annotation was computed. [2020-11-29 20:26:45,761 INFO L274 CegarLoopResult]: For program point L323(lines 323 2995) no Hoare annotation was computed. [2020-11-29 20:26:45,761 INFO L274 CegarLoopResult]: For program point L1711(lines 1711 2781) no Hoare annotation was computed. [2020-11-29 20:26:45,761 INFO L274 CegarLoopResult]: For program point L588(lines 588 2954) no Hoare annotation was computed. [2020-11-29 20:26:45,761 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,762 INFO L274 CegarLoopResult]: For program point L853(lines 853 2913) no Hoare annotation was computed. [2020-11-29 20:26:45,764 INFO L274 CegarLoopResult]: For program point L1844(lines 1844 2761) no Hoare annotation was computed. [2020-11-29 20:26:45,764 INFO L274 CegarLoopResult]: For program point L1778(lines 1778 2771) no Hoare annotation was computed. [2020-11-29 20:26:45,764 INFO L274 CegarLoopResult]: For program point L2109(lines 2109 2720) no Hoare annotation was computed. [2020-11-29 20:26:45,765 INFO L274 CegarLoopResult]: For program point L986(lines 986 2893) no Hoare annotation was computed. [2020-11-29 20:26:45,765 INFO L274 CegarLoopResult]: For program point L920(lines 920 2903) no Hoare annotation was computed. [2020-11-29 20:26:45,765 INFO L274 CegarLoopResult]: For program point L2374(lines 2374 2679) no Hoare annotation was computed. [2020-11-29 20:26:45,765 INFO L274 CegarLoopResult]: For program point L1251(lines 1251 2852) no Hoare annotation was computed. [2020-11-29 20:26:45,765 INFO L274 CegarLoopResult]: For program point L1516(lines 1516 2811) no Hoare annotation was computed. [2020-11-29 20:26:45,765 INFO L274 CegarLoopResult]: For program point L2507(lines 2507 2659) no Hoare annotation was computed. [2020-11-29 20:26:45,766 INFO L274 CegarLoopResult]: For program point L393(lines 393 2984) no Hoare annotation was computed. [2020-11-29 20:26:45,766 INFO L274 CegarLoopResult]: For program point L2441(lines 2441 2669) no Hoare annotation was computed. [2020-11-29 20:26:45,766 INFO L274 CegarLoopResult]: For program point L658(lines 658 2943) no Hoare annotation was computed. [2020-11-29 20:26:45,766 INFO L274 CegarLoopResult]: For program point L1649(lines 1649 2791) no Hoare annotation was computed. [2020-11-29 20:26:45,766 INFO L270 CegarLoopResult]: At program point L2640(lines 2591 2647) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 59 ULTIMATE.start_main_~main__t~0)) [2020-11-29 20:26:45,766 INFO L274 CegarLoopResult]: For program point L1583(lines 1583 2801) no Hoare annotation was computed. [2020-11-29 20:26:45,767 INFO L274 CegarLoopResult]: For program point L64(lines 64 3001) no Hoare annotation was computed. [2020-11-29 20:26:45,767 INFO L274 CegarLoopResult]: For program point L1914(lines 1914 2750) no Hoare annotation was computed. [2020-11-29 20:26:45,767 INFO L274 CegarLoopResult]: For program point L791(lines 791 2923) no Hoare annotation was computed. [2020-11-29 20:26:45,767 INFO L274 CegarLoopResult]: For program point L725(lines 725 2933) no Hoare annotation was computed. [2020-11-29 20:26:45,767 INFO L274 CegarLoopResult]: For program point L2179(lines 2179 2709) no Hoare annotation was computed. [2020-11-29 20:26:45,767 INFO L274 CegarLoopResult]: For program point L1056(lines 1056 2882) no Hoare annotation was computed. [2020-11-29 20:26:45,768 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:26:45,768 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,768 INFO L274 CegarLoopResult]: For program point L1321(lines 1321 2841) no Hoare annotation was computed. [2020-11-29 20:26:45,768 INFO L274 CegarLoopResult]: For program point L2312(lines 2312 2689) no Hoare annotation was computed. [2020-11-29 20:26:45,768 INFO L274 CegarLoopResult]: For program point L2246(lines 2246 2699) no Hoare annotation was computed. [2020-11-29 20:26:45,768 INFO L274 CegarLoopResult]: For program point L132(lines 132 282) no Hoare annotation was computed. [2020-11-29 20:26:45,769 INFO L274 CegarLoopResult]: For program point L2577(lines 2577 2648) no Hoare annotation was computed. [2020-11-29 20:26:45,769 INFO L274 CegarLoopResult]: For program point L463(lines 463 2973) no Hoare annotation was computed. [2020-11-29 20:26:45,769 INFO L274 CegarLoopResult]: For program point L1454(lines 1454 2821) no Hoare annotation was computed. [2020-11-29 20:26:45,769 INFO L274 CegarLoopResult]: For program point L1388(lines 1388 2831) no Hoare annotation was computed. [2020-11-29 20:26:45,769 INFO L274 CegarLoopResult]: For program point L265(lines 265 273) no Hoare annotation was computed. [2020-11-29 20:26:45,769 INFO L274 CegarLoopResult]: For program point L1719(lines 1719 2780) no Hoare annotation was computed. [2020-11-29 20:26:45,769 INFO L274 CegarLoopResult]: For program point L596(lines 596 2953) no Hoare annotation was computed. [2020-11-29 20:26:45,770 INFO L274 CegarLoopResult]: For program point L530(lines 530 2963) no Hoare annotation was computed. [2020-11-29 20:26:45,770 INFO L274 CegarLoopResult]: For program point L1984(lines 1984 2739) no Hoare annotation was computed. [2020-11-29 20:26:45,770 INFO L274 CegarLoopResult]: For program point L861(lines 861 2912) no Hoare annotation was computed. [2020-11-29 20:26:45,770 INFO L274 CegarLoopResult]: For program point L1126(lines 1126 2871) no Hoare annotation was computed. [2020-11-29 20:26:45,770 INFO L274 CegarLoopResult]: For program point L2117(lines 2117 2719) no Hoare annotation was computed. [2020-11-29 20:26:45,770 INFO L274 CegarLoopResult]: For program point L2051(lines 2051 2729) no Hoare annotation was computed. [2020-11-29 20:26:45,771 INFO L274 CegarLoopResult]: For program point L2382(lines 2382 2678) no Hoare annotation was computed. [2020-11-29 20:26:45,771 INFO L274 CegarLoopResult]: For program point L1259(lines 1259 2851) no Hoare annotation was computed. [2020-11-29 20:26:45,771 INFO L274 CegarLoopResult]: For program point L1193(lines 1193 2861) no Hoare annotation was computed. [2020-11-29 20:26:45,771 INFO L274 CegarLoopResult]: For program point L136(lines 136 240) no Hoare annotation was computed. [2020-11-29 20:26:45,771 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,771 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,772 INFO L274 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,772 INFO L274 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,772 INFO L274 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,772 INFO L274 CegarLoopResult]: For program point L4-5(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,772 INFO L274 CegarLoopResult]: For program point L4-6(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,772 INFO L274 CegarLoopResult]: For program point L4-7(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,772 INFO L274 CegarLoopResult]: For program point L4-8(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,773 INFO L274 CegarLoopResult]: For program point L4-9(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,773 INFO L274 CegarLoopResult]: For program point L4-10(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,773 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,773 INFO L274 CegarLoopResult]: For program point L4-11(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,773 INFO L274 CegarLoopResult]: For program point L4-12(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,773 INFO L274 CegarLoopResult]: For program point L4-13(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,774 INFO L274 CegarLoopResult]: For program point L4-14(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,774 INFO L274 CegarLoopResult]: For program point L4-15(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,774 INFO L274 CegarLoopResult]: For program point L4-16(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,774 INFO L274 CegarLoopResult]: For program point L1524(lines 1524 2810) no Hoare annotation was computed. [2020-11-29 20:26:45,774 INFO L274 CegarLoopResult]: For program point L4-17(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,774 INFO L274 CegarLoopResult]: For program point L4-18(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,774 INFO L274 CegarLoopResult]: For program point L4-19(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,775 INFO L274 CegarLoopResult]: For program point L401(lines 401 2983) no Hoare annotation was computed. [2020-11-29 20:26:45,775 INFO L274 CegarLoopResult]: For program point L4-20(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,775 INFO L274 CegarLoopResult]: For program point L4-21(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,775 INFO L274 CegarLoopResult]: For program point L335(lines 335 2993) no Hoare annotation was computed. [2020-11-29 20:26:45,775 INFO L274 CegarLoopResult]: For program point L4-22(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,775 INFO L274 CegarLoopResult]: For program point L4-23(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,776 INFO L274 CegarLoopResult]: For program point L4-24(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,776 INFO L274 CegarLoopResult]: For program point L4-25(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,776 INFO L274 CegarLoopResult]: For program point L4-26(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,776 INFO L274 CegarLoopResult]: For program point L4-27(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,776 INFO L274 CegarLoopResult]: For program point L4-28(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,776 INFO L274 CegarLoopResult]: For program point L4-29(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,776 INFO L274 CegarLoopResult]: For program point L4-30(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,777 INFO L274 CegarLoopResult]: For program point L4-31(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,777 INFO L274 CegarLoopResult]: For program point L1789(lines 1789 2769) no Hoare annotation was computed. [2020-11-29 20:26:45,777 INFO L274 CegarLoopResult]: For program point L666(lines 666 2942) no Hoare annotation was computed. [2020-11-29 20:26:45,777 INFO L274 CegarLoopResult]: For program point L931(lines 931 2901) no Hoare annotation was computed. [2020-11-29 20:26:45,777 INFO L274 CegarLoopResult]: For program point L1922(lines 1922 2749) no Hoare annotation was computed. [2020-11-29 20:26:45,777 INFO L274 CegarLoopResult]: For program point L1856(lines 1856 2759) no Hoare annotation was computed. [2020-11-29 20:26:45,778 INFO L274 CegarLoopResult]: For program point L205(lines 205 229) no Hoare annotation was computed. [2020-11-29 20:26:45,778 INFO L274 CegarLoopResult]: For program point L2187(lines 2187 2708) no Hoare annotation was computed. [2020-11-29 20:26:45,778 INFO L274 CegarLoopResult]: For program point L1064(lines 1064 2881) no Hoare annotation was computed. [2020-11-29 20:26:45,779 INFO L274 CegarLoopResult]: For program point L998(lines 998 2891) no Hoare annotation was computed. [2020-11-29 20:26:45,779 INFO L274 CegarLoopResult]: For program point L2452(lines 2452 2667) no Hoare annotation was computed. [2020-11-29 20:26:45,779 INFO L274 CegarLoopResult]: For program point L1329(lines 1329 2840) no Hoare annotation was computed. [2020-11-29 20:26:45,779 INFO L274 CegarLoopResult]: For program point L74(lines 74 286) no Hoare annotation was computed. [2020-11-29 20:26:45,779 INFO L274 CegarLoopResult]: For program point L1594(lines 1594 2799) no Hoare annotation was computed. [2020-11-29 20:26:45,779 INFO L274 CegarLoopResult]: For program point L2585(lines 2585 2647) no Hoare annotation was computed. [2020-11-29 20:26:45,780 INFO L274 CegarLoopResult]: For program point L471(lines 471 2972) no Hoare annotation was computed. [2020-11-29 20:26:45,780 INFO L274 CegarLoopResult]: For program point L2519(lines 2519 2657) no Hoare annotation was computed. [2020-11-29 20:26:45,780 INFO L274 CegarLoopResult]: For program point L736(lines 736 2931) no Hoare annotation was computed. [2020-11-29 20:26:45,780 INFO L274 CegarLoopResult]: For program point L1727(lines 1727 2779) no Hoare annotation was computed. [2020-11-29 20:26:45,780 INFO L274 CegarLoopResult]: For program point L1661(lines 1661 2789) no Hoare annotation was computed. [2020-11-29 20:26:45,781 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,781 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,781 INFO L274 CegarLoopResult]: For program point L1992(lines 1992 2738) no Hoare annotation was computed. [2020-11-29 20:26:45,781 INFO L274 CegarLoopResult]: For program point L869(lines 869 2911) no Hoare annotation was computed. [2020-11-29 20:26:45,781 INFO L274 CegarLoopResult]: For program point L803(lines 803 2921) no Hoare annotation was computed. [2020-11-29 20:26:45,781 INFO L274 CegarLoopResult]: For program point L2257(lines 2257 2697) no Hoare annotation was computed. [2020-11-29 20:26:45,782 INFO L274 CegarLoopResult]: For program point L143(lines 143 234) no Hoare annotation was computed. [2020-11-29 20:26:45,782 INFO L274 CegarLoopResult]: For program point L1134(lines 1134 2870) no Hoare annotation was computed. [2020-11-29 20:26:45,782 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,782 INFO L274 CegarLoopResult]: For program point L1399(lines 1399 2829) no Hoare annotation was computed. [2020-11-29 20:26:45,782 INFO L274 CegarLoopResult]: For program point L2390(lines 2390 2677) no Hoare annotation was computed. [2020-11-29 20:26:45,782 INFO L274 CegarLoopResult]: For program point L2324(lines 2324 2687) no Hoare annotation was computed. [2020-11-29 20:26:45,783 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,783 INFO L274 CegarLoopResult]: For program point L541(lines 541 2961) no Hoare annotation was computed. [2020-11-29 20:26:45,783 INFO L274 CegarLoopResult]: For program point L1532(lines 1532 2809) no Hoare annotation was computed. [2020-11-29 20:26:45,783 INFO L274 CegarLoopResult]: For program point L1466(lines 1466 2819) no Hoare annotation was computed. [2020-11-29 20:26:45,783 INFO L274 CegarLoopResult]: For program point L1797(lines 1797 2768) no Hoare annotation was computed. [2020-11-29 20:26:45,783 INFO L274 CegarLoopResult]: For program point L674(lines 674 2941) no Hoare annotation was computed. [2020-11-29 20:26:45,784 INFO L274 CegarLoopResult]: For program point L608(lines 608 2951) no Hoare annotation was computed. [2020-11-29 20:26:45,784 INFO L274 CegarLoopResult]: For program point L2062(lines 2062 2727) no Hoare annotation was computed. [2020-11-29 20:26:45,784 INFO L274 CegarLoopResult]: For program point L939(lines 939 2900) no Hoare annotation was computed. [2020-11-29 20:26:45,784 INFO L274 CegarLoopResult]: For program point L1204(lines 1204 2859) no Hoare annotation was computed. [2020-11-29 20:26:45,784 INFO L274 CegarLoopResult]: For program point L2195(lines 2195 2707) no Hoare annotation was computed. [2020-11-29 20:26:45,784 INFO L274 CegarLoopResult]: For program point L2129(lines 2129 2717) no Hoare annotation was computed. [2020-11-29 20:26:45,784 INFO L274 CegarLoopResult]: For program point L2460(lines 2460 2666) no Hoare annotation was computed. [2020-11-29 20:26:45,785 INFO L274 CegarLoopResult]: For program point L346(lines 346 2991) no Hoare annotation was computed. [2020-11-29 20:26:45,785 INFO L274 CegarLoopResult]: For program point L1337(lines 1337 2839) no Hoare annotation was computed. [2020-11-29 20:26:45,785 INFO L270 CegarLoopResult]: At program point L280(lines 132 282) 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) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~3 0)) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0))) [2020-11-29 20:26:45,785 INFO L274 CegarLoopResult]: For program point L1271(lines 1271 2849) no Hoare annotation was computed. [2020-11-29 20:26:45,785 INFO L274 CegarLoopResult]: For program point L1602(lines 1602 2798) no Hoare annotation was computed. [2020-11-29 20:26:45,786 INFO L274 CegarLoopResult]: For program point L479(lines 479 2971) no Hoare annotation was computed. [2020-11-29 20:26:45,786 INFO L274 CegarLoopResult]: For program point L413(lines 413 2981) no Hoare annotation was computed. [2020-11-29 20:26:45,786 INFO L274 CegarLoopResult]: For program point L1867(lines 1867 2757) no Hoare annotation was computed. [2020-11-29 20:26:45,786 INFO L274 CegarLoopResult]: For program point L744(lines 744 2930) no Hoare annotation was computed. [2020-11-29 20:26:45,786 INFO L274 CegarLoopResult]: For program point L1009(lines 1009 2889) no Hoare annotation was computed. [2020-11-29 20:26:45,786 INFO L274 CegarLoopResult]: For program point L2000(lines 2000 2737) no Hoare annotation was computed. [2020-11-29 20:26:45,787 INFO L274 CegarLoopResult]: For program point L1934(lines 1934 2747) no Hoare annotation was computed. [2020-11-29 20:26:45,787 INFO L274 CegarLoopResult]: For program point L217(lines 217 227) no Hoare annotation was computed. [2020-11-29 20:26:45,788 INFO L274 CegarLoopResult]: For program point L2265(lines 2265 2696) no Hoare annotation was computed. [2020-11-29 20:26:45,788 INFO L274 CegarLoopResult]: For program point L1142(lines 1142 2869) no Hoare annotation was computed. [2020-11-29 20:26:45,788 INFO L274 CegarLoopResult]: For program point L1076(lines 1076 2879) no Hoare annotation was computed. [2020-11-29 20:26:45,788 INFO L274 CegarLoopResult]: For program point L2530(lines 2530 2655) no Hoare annotation was computed. [2020-11-29 20:26:45,789 INFO L274 CegarLoopResult]: For program point L1407(lines 1407 2828) no Hoare annotation was computed. [2020-11-29 20:26:45,789 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:26:45,790 INFO L274 CegarLoopResult]: For program point L86(lines 86 284) no Hoare annotation was computed. [2020-11-29 20:26:45,794 INFO L274 CegarLoopResult]: For program point L1672(lines 1672 2787) no Hoare annotation was computed. [2020-11-29 20:26:45,794 INFO L274 CegarLoopResult]: For program point L549(lines 549 2960) no Hoare annotation was computed. [2020-11-29 20:26:45,794 INFO L274 CegarLoopResult]: For program point L21(lines 21 3007) no Hoare annotation was computed. [2020-11-29 20:26:45,794 INFO L274 CegarLoopResult]: For program point L814(lines 814 2919) no Hoare annotation was computed. [2020-11-29 20:26:45,794 INFO L274 CegarLoopResult]: For program point L1805(lines 1805 2767) no Hoare annotation was computed. [2020-11-29 20:26:45,795 INFO L274 CegarLoopResult]: For program point L1739(lines 1739 2777) no Hoare annotation was computed. [2020-11-29 20:26:45,795 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,795 INFO L274 CegarLoopResult]: For program point L2070(lines 2070 2726) no Hoare annotation was computed. [2020-11-29 20:26:45,795 INFO L274 CegarLoopResult]: For program point L947(lines 947 2899) no Hoare annotation was computed. [2020-11-29 20:26:45,795 INFO L274 CegarLoopResult]: For program point L881(lines 881 2909) no Hoare annotation was computed. [2020-11-29 20:26:45,795 INFO L274 CegarLoopResult]: For program point L2335(lines 2335 2685) no Hoare annotation was computed. [2020-11-29 20:26:45,796 INFO L274 CegarLoopResult]: For program point L1212(lines 1212 2858) no Hoare annotation was computed. [2020-11-29 20:26:45,796 INFO L274 CegarLoopResult]: For program point L155(lines 155 232) no Hoare annotation was computed. [2020-11-29 20:26:45,796 INFO L274 CegarLoopResult]: For program point L1477(lines 1477 2817) no Hoare annotation was computed. [2020-11-29 20:26:45,796 INFO L274 CegarLoopResult]: For program point L2468(lines 2468 2665) no Hoare annotation was computed. [2020-11-29 20:26:45,796 INFO L274 CegarLoopResult]: For program point L2402(lines 2402 2675) no Hoare annotation was computed. [2020-11-29 20:26:45,796 INFO L274 CegarLoopResult]: For program point L354(lines 354 2990) no Hoare annotation was computed. [2020-11-29 20:26:45,797 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,797 INFO L274 CegarLoopResult]: For program point L619(lines 619 2949) no Hoare annotation was computed. [2020-11-29 20:26:45,797 INFO L274 CegarLoopResult]: For program point L1610(lines 1610 2797) no Hoare annotation was computed. [2020-11-29 20:26:45,797 INFO L274 CegarLoopResult]: For program point L1544(lines 1544 2807) no Hoare annotation was computed. [2020-11-29 20:26:45,797 INFO L274 CegarLoopResult]: For program point L25(lines 25 3002) no Hoare annotation was computed. [2020-11-29 20:26:45,797 INFO L274 CegarLoopResult]: For program point L1875(lines 1875 2756) no Hoare annotation was computed. [2020-11-29 20:26:45,798 INFO L274 CegarLoopResult]: For program point L752(lines 752 2929) no Hoare annotation was computed. [2020-11-29 20:26:45,798 INFO L274 CegarLoopResult]: For program point L686(lines 686 2939) no Hoare annotation was computed. [2020-11-29 20:26:45,798 INFO L274 CegarLoopResult]: For program point L2602(lines 2602 2645) no Hoare annotation was computed. [2020-11-29 20:26:45,798 INFO L274 CegarLoopResult]: For program point L2140(lines 2140 2715) no Hoare annotation was computed. [2020-11-29 20:26:45,798 INFO L274 CegarLoopResult]: For program point L1017(lines 1017 2888) no Hoare annotation was computed. [2020-11-29 20:26:45,798 INFO L274 CegarLoopResult]: For program point L1282(lines 1282 2847) no Hoare annotation was computed. [2020-11-29 20:26:45,798 INFO L274 CegarLoopResult]: For program point L2273(lines 2273 2695) no Hoare annotation was computed. [2020-11-29 20:26:45,799 INFO L274 CegarLoopResult]: For program point L2207(lines 2207 2705) no Hoare annotation was computed. [2020-11-29 20:26:45,799 INFO L274 CegarLoopResult]: For program point L2538(lines 2538 2654) no Hoare annotation was computed. [2020-11-29 20:26:45,799 INFO L274 CegarLoopResult]: For program point L424(lines 424 2979) no Hoare annotation was computed. [2020-11-29 20:26:45,799 INFO L274 CegarLoopResult]: For program point L1415(lines 1415 2827) no Hoare annotation was computed. [2020-11-29 20:26:45,799 INFO L274 CegarLoopResult]: For program point L1349(lines 1349 2837) no Hoare annotation was computed. [2020-11-29 20:26:45,799 INFO L270 CegarLoopResult]: At program point L226(lines 92 284) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~main__t~0) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~3 0)) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0)) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-11-29 20:26:45,800 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:26:45,800 INFO L274 CegarLoopResult]: For program point L1680(lines 1680 2786) no Hoare annotation was computed. [2020-11-29 20:26:45,800 INFO L274 CegarLoopResult]: For program point L557(lines 557 2959) no Hoare annotation was computed. [2020-11-29 20:26:45,800 INFO L274 CegarLoopResult]: For program point L491(lines 491 2969) no Hoare annotation was computed. [2020-11-29 20:26:45,800 INFO L274 CegarLoopResult]: For program point L1945(lines 1945 2745) no Hoare annotation was computed. [2020-11-29 20:26:45,800 INFO L274 CegarLoopResult]: For program point L822(lines 822 2918) no Hoare annotation was computed. [2020-11-29 20:26:45,801 INFO L274 CegarLoopResult]: For program point L1087(lines 1087 2877) no Hoare annotation was computed. [2020-11-29 20:26:45,801 INFO L274 CegarLoopResult]: For program point L2078(lines 2078 2725) no Hoare annotation was computed. [2020-11-29 20:26:45,801 INFO L274 CegarLoopResult]: For program point L2012(lines 2012 2735) no Hoare annotation was computed. [2020-11-29 20:26:45,801 INFO L274 CegarLoopResult]: For program point L2343(lines 2343 2684) no Hoare annotation was computed. [2020-11-29 20:26:45,801 INFO L274 CegarLoopResult]: For program point L1220(lines 1220 2857) no Hoare annotation was computed. [2020-11-29 20:26:45,801 INFO L274 CegarLoopResult]: For program point L1154(lines 1154 2867) no Hoare annotation was computed. [2020-11-29 20:26:45,801 INFO L274 CegarLoopResult]: For program point L1485(lines 1485 2816) no Hoare annotation was computed. [2020-11-29 20:26:45,802 INFO L274 CegarLoopResult]: For program point L362(lines 362 2989) no Hoare annotation was computed. [2020-11-29 20:26:45,802 INFO L274 CegarLoopResult]: For program point L296(lines 296 2999) no Hoare annotation was computed. [2020-11-29 20:26:45,802 INFO L274 CegarLoopResult]: For program point L164(lines 164 231) no Hoare annotation was computed. [2020-11-29 20:26:45,802 INFO L274 CegarLoopResult]: For program point L1750(lines 1750 2775) no Hoare annotation was computed. [2020-11-29 20:26:45,802 INFO L274 CegarLoopResult]: For program point L627(lines 627 2948) no Hoare annotation was computed. [2020-11-29 20:26:45,802 INFO L274 CegarLoopResult]: For program point L33(lines 33 57) no Hoare annotation was computed. [2020-11-29 20:26:45,803 INFO L277 CegarLoopResult]: At program point L3006(lines 21 3007) the Hoare annotation is: true [2020-11-29 20:26:45,803 INFO L274 CegarLoopResult]: For program point L892(lines 892 2907) no Hoare annotation was computed. [2020-11-29 20:26:45,803 INFO L274 CegarLoopResult]: For program point L1883(lines 1883 2755) no Hoare annotation was computed. [2020-11-29 20:26:45,803 INFO L274 CegarLoopResult]: For program point L1817(lines 1817 2765) no Hoare annotation was computed. [2020-11-29 20:26:45,803 INFO L274 CegarLoopResult]: For program point L2148(lines 2148 2714) no Hoare annotation was computed. [2020-11-29 20:26:45,803 INFO L274 CegarLoopResult]: For program point L1025(lines 1025 2887) no Hoare annotation was computed. [2020-11-29 20:26:45,804 INFO L274 CegarLoopResult]: For program point L959(lines 959 2897) no Hoare annotation was computed. [2020-11-29 20:26:45,804 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:26:45,804 INFO L274 CegarLoopResult]: For program point L2413(lines 2413 2673) no Hoare annotation was computed. [2020-11-29 20:26:45,804 INFO L274 CegarLoopResult]: For program point L1290(lines 1290 2846) no Hoare annotation was computed. [2020-11-29 20:26:45,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:26:45 BoogieIcfgContainer [2020-11-29 20:26:45,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:26:45,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:26:45,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:26:45,844 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:26:45,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:26:21" (3/4) ... [2020-11-29 20:26:45,849 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:26:45,898 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 20:26:45,910 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:26:45,914 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:26:45,918 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:26:46,193 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e2d434cc-bd07-45ab-bb6a-c68c96dbefd9/bin/uautomizer/witness.graphml [2020-11-29 20:26:46,193 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:26:46,195 INFO L168 Benchmark]: Toolchain (without parser) took 27513.48 ms. Allocated memory was 92.3 MB in the beginning and 343.9 MB in the end (delta: 251.7 MB). Free memory was 61.4 MB in the beginning and 139.5 MB in the end (delta: -78.1 MB). Peak memory consumption was 173.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:46,196 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 92.3 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:26:46,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 968.51 ms. Allocated memory is still 92.3 MB. Free memory was 61.2 MB in the beginning and 47.1 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:46,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 148.92 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 47.1 MB in the beginning and 85.2 MB in the end (delta: -38.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:46,197 INFO L168 Benchmark]: Boogie Preprocessor took 92.45 ms. Allocated memory is still 113.2 MB. Free memory was 85.2 MB in the beginning and 80.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:46,198 INFO L168 Benchmark]: RCFGBuilder took 2076.26 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 80.1 MB in the beginning and 57.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 54.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:46,198 INFO L168 Benchmark]: TraceAbstraction took 23868.50 ms. Allocated memory was 136.3 MB in the beginning and 343.9 MB in the end (delta: 207.6 MB). Free memory was 57.2 MB in the beginning and 169.9 MB in the end (delta: -112.7 MB). Peak memory consumption was 96.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:46,199 INFO L168 Benchmark]: Witness Printer took 349.36 ms. Allocated memory is still 343.9 MB. Free memory was 169.9 MB in the beginning and 139.5 MB in the end (delta: 30.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:46,201 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 92.3 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 968.51 ms. Allocated memory is still 92.3 MB. Free memory was 61.2 MB in the beginning and 47.1 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 148.92 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 47.1 MB in the beginning and 85.2 MB in the end (delta: -38.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.45 ms. Allocated memory is still 113.2 MB. Free memory was 85.2 MB in the beginning and 80.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2076.26 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 80.1 MB in the beginning and 57.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 54.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 23868.50 ms. Allocated memory was 136.3 MB in the beginning and 343.9 MB in the end (delta: 207.6 MB). Free memory was 57.2 MB in the beginning and 169.9 MB in the end (delta: -112.7 MB). Peak memory consumption was 96.0 MB. Max. memory is 16.1 GB. * Witness Printer took 349.36 ms. Allocated memory is still 343.9 MB. Free memory was 169.9 MB in the beginning and 139.5 MB in the end (delta: 30.4 MB). Peak memory consumption was 29.4 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: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: ((1 <= main__t && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__t <= main__tagbuf_len - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: ((main__t < main__tagbuf_len && 1 <= main__t) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (main__t < main__tagbuf_len && 1 <= main__t) || (main__t < main__tagbuf_len && main__t == 0) - InvariantResult [Line: 2591]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 59 <= main__t - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 320 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.1s, OverallIterations: 21, TraceHistogramMax: 1, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4010 SDtfs, 9444 SDslu, 5323 SDs, 0 SdLazy, 12286 SolverSat, 2565 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=320occurred 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: 0.3s AutomataMinimizationTime, 21 MinimizatonAttempts, 154 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 16 NumberOfFragments, 61 HoareAnnotationTreeSize, 7 FomulaSimplifications, 9919 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6319 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 744 NumberOfCodeBlocks, 744 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 723 ConstructedInterpolants, 0 QuantifiedInterpolants, 363327 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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...