./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b3c25b2e1855c4c0a30872aa894c42326e9c019 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 14:56:35,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:56:35,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:56:35,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:56:35,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:56:35,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:56:35,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:56:35,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:56:35,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:56:35,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:56:35,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:56:35,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:56:35,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:56:35,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:56:35,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:56:35,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:56:35,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:56:35,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:56:35,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:56:35,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:56:35,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:56:35,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:56:35,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:56:35,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:56:35,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:56:35,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:56:35,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:56:35,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:56:35,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:56:35,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:56:35,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:56:35,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:56:35,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:56:35,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:56:35,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:56:35,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:56:35,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:56:35,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:56:35,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:56:35,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:56:35,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:56:35,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 14:56:35,283 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:56:35,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:56:35,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:56:35,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:56:35,285 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:56:35,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:56:35,286 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:56:35,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 14:56:35,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:56:35,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:56:35,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 14:56:35,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 14:56:35,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 14:56:35,287 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:56:35,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 14:56:35,288 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:56:35,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 14:56:35,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:56:35,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:56:35,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 14:56:35,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 14:56:35,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:56:35,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:56:35,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 14:56:35,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 14:56:35,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 14:56:35,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 14:56:35,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 14:56:35,290 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:56:35,291 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_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b3c25b2e1855c4c0a30872aa894c42326e9c019 [2020-12-01 14:56:35,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:56:35,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:56:35,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:56:35,572 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:56:35,573 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:56:35,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-12-01 14:56:35,653 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer/data/5c789995a/1a6914c862a1440baeaf9bb2bf140405/FLAG4d1b8ccbd [2020-12-01 14:56:36,123 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:56:36,124 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-12-01 14:56:36,152 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer/data/5c789995a/1a6914c862a1440baeaf9bb2bf140405/FLAG4d1b8ccbd [2020-12-01 14:56:36,489 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer/data/5c789995a/1a6914c862a1440baeaf9bb2bf140405 [2020-12-01 14:56:36,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:56:36,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 14:56:36,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:56:36,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:56:36,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:56:36,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:56:36" (1/1) ... [2020-12-01 14:56:36,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20eb9f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:36, skipping insertion in model container [2020-12-01 14:56:36,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:56:36" (1/1) ... [2020-12-01 14:56:36,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:56:36,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 14:56:36,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:56:36,922 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 14:56:37,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:56:37,016 INFO L208 MainTranslator]: Completed translation [2020-12-01 14:56:37,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:37 WrapperNode [2020-12-01 14:56:37,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 14:56:37,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 14:56:37,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 14:56:37,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 14:56:37,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:37" (1/1) ... [2020-12-01 14:56:37,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:37" (1/1) ... [2020-12-01 14:56:37,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 14:56:37,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 14:56:37,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 14:56:37,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 14:56:37,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:37" (1/1) ... [2020-12-01 14:56:37,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:37" (1/1) ... [2020-12-01 14:56:37,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:37" (1/1) ... [2020-12-01 14:56:37,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:37" (1/1) ... [2020-12-01 14:56:37,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:37" (1/1) ... [2020-12-01 14:56:37,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:37" (1/1) ... [2020-12-01 14:56:37,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:37" (1/1) ... [2020-12-01 14:56:37,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 14:56:37,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 14:56:37,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 14:56:37,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 14:56:37,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/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 [2020-12-01 14:56:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 14:56:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 14:56:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 14:56:37,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 14:56:38,001 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 14:56:38,001 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-12-01 14:56:38,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:56:38 BoogieIcfgContainer [2020-12-01 14:56:38,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 14:56:38,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 14:56:38,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 14:56:38,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 14:56:38,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:56:36" (1/3) ... [2020-12-01 14:56:38,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd85b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:56:38, skipping insertion in model container [2020-12-01 14:56:38,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:37" (2/3) ... [2020-12-01 14:56:38,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd85b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:56:38, skipping insertion in model container [2020-12-01 14:56:38,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:56:38" (3/3) ... [2020-12-01 14:56:38,012 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2020-12-01 14:56:38,026 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 14:56:38,030 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-12-01 14:56:38,041 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-12-01 14:56:38,067 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 14:56:38,067 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 14:56:38,067 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 14:56:38,067 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 14:56:38,067 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 14:56:38,067 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 14:56:38,067 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 14:56:38,068 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 14:56:38,086 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2020-12-01 14:56:38,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 14:56:38,092 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:38,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:38,093 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]=== [2020-12-01 14:56:38,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:38,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1804934597, now seen corresponding path program 1 times [2020-12-01 14:56:38,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:38,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207930381] [2020-12-01 14:56:38,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:38,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:38,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207930381] [2020-12-01 14:56:38,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:38,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 14:56:38,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922623751] [2020-12-01 14:56:38,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 14:56:38,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:38,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 14:56:38,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 14:56:38,413 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 4 states. [2020-12-01 14:56:38,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:38,733 INFO L93 Difference]: Finished difference Result 147 states and 221 transitions. [2020-12-01 14:56:38,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 14:56:38,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-01 14:56:38,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:38,760 INFO L225 Difference]: With dead ends: 147 [2020-12-01 14:56:38,760 INFO L226 Difference]: Without dead ends: 114 [2020-12-01 14:56:38,763 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 [2020-12-01 14:56:38,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-12-01 14:56:38,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-12-01 14:56:38,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-12-01 14:56:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2020-12-01 14:56:38,831 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 7 [2020-12-01 14:56:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:38,831 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2020-12-01 14:56:38,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 14:56:38,832 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2020-12-01 14:56:38,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 14:56:38,833 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:38,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:38,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 14:56:38,835 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:56:38,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:38,838 INFO L82 PathProgramCache]: Analyzing trace with hash 118403696, now seen corresponding path program 1 times [2020-12-01 14:56:38,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:38,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171229037] [2020-12-01 14:56:38,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:38,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171229037] [2020-12-01 14:56:38,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:38,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 14:56:38,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902094735] [2020-12-01 14:56:38,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 14:56:38,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:38,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 14:56:38,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:56:38,993 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand 5 states. [2020-12-01 14:56:39,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:39,195 INFO L93 Difference]: Finished difference Result 114 states and 135 transitions. [2020-12-01 14:56:39,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 14:56:39,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-01 14:56:39,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:39,202 INFO L225 Difference]: With dead ends: 114 [2020-12-01 14:56:39,202 INFO L226 Difference]: Without dead ends: 109 [2020-12-01 14:56:39,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-01 14:56:39,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-12-01 14:56:39,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-12-01 14:56:39,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-12-01 14:56:39,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2020-12-01 14:56:39,224 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 8 [2020-12-01 14:56:39,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:39,225 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2020-12-01 14:56:39,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 14:56:39,225 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2020-12-01 14:56:39,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 14:56:39,226 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:39,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:39,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 14:56:39,226 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]=== [2020-12-01 14:56:39,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:39,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1410106030, now seen corresponding path program 1 times [2020-12-01 14:56:39,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:39,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512315775] [2020-12-01 14:56:39,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:39,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:39,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512315775] [2020-12-01 14:56:39,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:39,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 14:56:39,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408134529] [2020-12-01 14:56:39,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 14:56:39,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:39,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 14:56:39,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:56:39,333 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand 5 states. [2020-12-01 14:56:39,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:39,545 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2020-12-01 14:56:39,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 14:56:39,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-01 14:56:39,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:39,550 INFO L225 Difference]: With dead ends: 109 [2020-12-01 14:56:39,550 INFO L226 Difference]: Without dead ends: 107 [2020-12-01 14:56:39,550 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 [2020-12-01 14:56:39,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-01 14:56:39,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-12-01 14:56:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-01 14:56:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2020-12-01 14:56:39,570 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 11 [2020-12-01 14:56:39,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:39,571 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2020-12-01 14:56:39,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 14:56:39,571 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2020-12-01 14:56:39,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 14:56:39,572 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:39,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:39,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 14:56:39,572 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]=== [2020-12-01 14:56:39,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:39,573 INFO L82 PathProgramCache]: Analyzing trace with hash 763620047, now seen corresponding path program 1 times [2020-12-01 14:56:39,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:39,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121991611] [2020-12-01 14:56:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:39,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121991611] [2020-12-01 14:56:39,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:39,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 14:56:39,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224809162] [2020-12-01 14:56:39,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 14:56:39,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:39,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 14:56:39,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 14:56:39,653 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand 4 states. [2020-12-01 14:56:39,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:39,802 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2020-12-01 14:56:39,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 14:56:39,803 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-01 14:56:39,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:39,804 INFO L225 Difference]: With dead ends: 107 [2020-12-01 14:56:39,804 INFO L226 Difference]: Without dead ends: 103 [2020-12-01 14:56:39,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:56:39,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-12-01 14:56:39,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-12-01 14:56:39,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-01 14:56:39,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2020-12-01 14:56:39,823 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 12 [2020-12-01 14:56:39,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:39,823 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2020-12-01 14:56:39,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 14:56:39,824 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2020-12-01 14:56:39,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 14:56:39,824 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:39,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:39,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 14:56:39,825 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]=== [2020-12-01 14:56:39,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:39,826 INFO L82 PathProgramCache]: Analyzing trace with hash -2078680795, now seen corresponding path program 1 times [2020-12-01 14:56:39,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:39,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004081840] [2020-12-01 14:56:39,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:39,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:39,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004081840] [2020-12-01 14:56:39,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:39,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 14:56:39,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444721006] [2020-12-01 14:56:39,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 14:56:39,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:39,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 14:56:39,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:56:39,912 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand 5 states. [2020-12-01 14:56:40,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:40,159 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2020-12-01 14:56:40,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 14:56:40,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-01 14:56:40,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:40,161 INFO L225 Difference]: With dead ends: 121 [2020-12-01 14:56:40,161 INFO L226 Difference]: Without dead ends: 119 [2020-12-01 14:56:40,161 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 [2020-12-01 14:56:40,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-01 14:56:40,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 101. [2020-12-01 14:56:40,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-01 14:56:40,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2020-12-01 14:56:40,169 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 13 [2020-12-01 14:56:40,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:40,169 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2020-12-01 14:56:40,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 14:56:40,169 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2020-12-01 14:56:40,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 14:56:40,171 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:40,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:40,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 14:56:40,172 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]=== [2020-12-01 14:56:40,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:40,172 INFO L82 PathProgramCache]: Analyzing trace with hash -2076587483, now seen corresponding path program 1 times [2020-12-01 14:56:40,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:40,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864330773] [2020-12-01 14:56:40,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:40,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:40,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864330773] [2020-12-01 14:56:40,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:40,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 14:56:40,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099128772] [2020-12-01 14:56:40,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 14:56:40,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:40,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 14:56:40,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:56:40,241 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand 5 states. [2020-12-01 14:56:40,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:40,479 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2020-12-01 14:56:40,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 14:56:40,479 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-01 14:56:40,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:40,480 INFO L225 Difference]: With dead ends: 101 [2020-12-01 14:56:40,481 INFO L226 Difference]: Without dead ends: 99 [2020-12-01 14:56:40,481 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 [2020-12-01 14:56:40,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-01 14:56:40,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-12-01 14:56:40,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-01 14:56:40,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2020-12-01 14:56:40,487 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 13 [2020-12-01 14:56:40,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:40,491 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2020-12-01 14:56:40,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 14:56:40,491 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2020-12-01 14:56:40,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 14:56:40,492 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:40,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:40,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 14:56:40,493 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]=== [2020-12-01 14:56:40,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:40,493 INFO L82 PathProgramCache]: Analyzing trace with hash -12678507, now seen corresponding path program 1 times [2020-12-01 14:56:40,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:40,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139960938] [2020-12-01 14:56:40,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:40,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:40,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139960938] [2020-12-01 14:56:40,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:40,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 14:56:40,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477902727] [2020-12-01 14:56:40,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 14:56:40,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:40,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 14:56:40,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:56:40,570 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 5 states. [2020-12-01 14:56:40,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:40,829 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2020-12-01 14:56:40,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 14:56:40,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-01 14:56:40,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:40,832 INFO L225 Difference]: With dead ends: 120 [2020-12-01 14:56:40,832 INFO L226 Difference]: Without dead ends: 118 [2020-12-01 14:56:40,833 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 [2020-12-01 14:56:40,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-12-01 14:56:40,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 97. [2020-12-01 14:56:40,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-01 14:56:40,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2020-12-01 14:56:40,837 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 14 [2020-12-01 14:56:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:40,837 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2020-12-01 14:56:40,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 14:56:40,843 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2020-12-01 14:56:40,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 14:56:40,846 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:40,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:40,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 14:56:40,846 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]=== [2020-12-01 14:56:40,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:40,847 INFO L82 PathProgramCache]: Analyzing trace with hash -14589102, now seen corresponding path program 1 times [2020-12-01 14:56:40,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:40,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271926314] [2020-12-01 14:56:40,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:41,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:41,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271926314] [2020-12-01 14:56:41,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:41,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 14:56:41,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845547853] [2020-12-01 14:56:41,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 14:56:41,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:41,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 14:56:41,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 14:56:41,020 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand 6 states. [2020-12-01 14:56:41,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:41,243 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2020-12-01 14:56:41,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 14:56:41,243 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-01 14:56:41,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:41,244 INFO L225 Difference]: With dead ends: 130 [2020-12-01 14:56:41,244 INFO L226 Difference]: Without dead ends: 128 [2020-12-01 14:56:41,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 14:56:41,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-12-01 14:56:41,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 103. [2020-12-01 14:56:41,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-01 14:56:41,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2020-12-01 14:56:41,255 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 14 [2020-12-01 14:56:41,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:41,258 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2020-12-01 14:56:41,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 14:56:41,258 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2020-12-01 14:56:41,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 14:56:41,264 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:41,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:41,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 14:56:41,265 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]=== [2020-12-01 14:56:41,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:41,265 INFO L82 PathProgramCache]: Analyzing trace with hash 50303638, now seen corresponding path program 1 times [2020-12-01 14:56:41,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:41,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142572513] [2020-12-01 14:56:41,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:41,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:41,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142572513] [2020-12-01 14:56:41,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:41,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 14:56:41,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717558730] [2020-12-01 14:56:41,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 14:56:41,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:41,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 14:56:41,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 14:56:41,422 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 6 states. [2020-12-01 14:56:41,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:41,652 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2020-12-01 14:56:41,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 14:56:41,653 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-01 14:56:41,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:41,654 INFO L225 Difference]: With dead ends: 113 [2020-12-01 14:56:41,654 INFO L226 Difference]: Without dead ends: 109 [2020-12-01 14:56:41,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 14:56:41,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-12-01 14:56:41,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2020-12-01 14:56:41,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-01 14:56:41,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2020-12-01 14:56:41,658 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 14 [2020-12-01 14:56:41,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:41,658 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2020-12-01 14:56:41,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 14:56:41,658 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2020-12-01 14:56:41,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 14:56:41,659 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:41,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:41,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 14:56:41,659 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]=== [2020-12-01 14:56:41,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:41,660 INFO L82 PathProgramCache]: Analyzing trace with hash -393027571, now seen corresponding path program 1 times [2020-12-01 14:56:41,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:41,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030590761] [2020-12-01 14:56:41,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:41,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:41,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030590761] [2020-12-01 14:56:41,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:41,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 14:56:41,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027347551] [2020-12-01 14:56:41,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 14:56:41,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:41,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 14:56:41,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 14:56:41,759 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 6 states. [2020-12-01 14:56:42,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:42,001 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2020-12-01 14:56:42,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 14:56:42,003 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-01 14:56:42,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:42,005 INFO L225 Difference]: With dead ends: 131 [2020-12-01 14:56:42,005 INFO L226 Difference]: Without dead ends: 129 [2020-12-01 14:56:42,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 14:56:42,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-12-01 14:56:42,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 107. [2020-12-01 14:56:42,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-01 14:56:42,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2020-12-01 14:56:42,010 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 15 [2020-12-01 14:56:42,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:42,011 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2020-12-01 14:56:42,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 14:56:42,011 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2020-12-01 14:56:42,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 14:56:42,012 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:42,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:42,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-01 14:56:42,012 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]=== [2020-12-01 14:56:42,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:42,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1135035499, now seen corresponding path program 1 times [2020-12-01 14:56:42,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:42,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029897340] [2020-12-01 14:56:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:42,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029897340] [2020-12-01 14:56:42,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:42,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 14:56:42,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823658422] [2020-12-01 14:56:42,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 14:56:42,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:42,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 14:56:42,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 14:56:42,048 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 4 states. [2020-12-01 14:56:42,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:42,126 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2020-12-01 14:56:42,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 14:56:42,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-01 14:56:42,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:42,128 INFO L225 Difference]: With dead ends: 107 [2020-12-01 14:56:42,128 INFO L226 Difference]: Without dead ends: 105 [2020-12-01 14:56:42,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:56:42,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-12-01 14:56:42,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-12-01 14:56:42,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-01 14:56:42,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2020-12-01 14:56:42,132 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 16 [2020-12-01 14:56:42,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:42,133 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2020-12-01 14:56:42,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 14:56:42,133 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2020-12-01 14:56:42,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 14:56:42,133 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:42,134 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:42,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-01 14:56:42,134 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]=== [2020-12-01 14:56:42,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:42,134 INFO L82 PathProgramCache]: Analyzing trace with hash -826355977, now seen corresponding path program 1 times [2020-12-01 14:56:42,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:42,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302360174] [2020-12-01 14:56:42,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:42,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:42,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302360174] [2020-12-01 14:56:42,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:42,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 14:56:42,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078863488] [2020-12-01 14:56:42,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 14:56:42,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:42,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 14:56:42,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 14:56:42,168 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 4 states. [2020-12-01 14:56:42,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:42,316 INFO L93 Difference]: Finished difference Result 105 states and 119 transitions. [2020-12-01 14:56:42,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 14:56:42,316 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-01 14:56:42,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:42,318 INFO L225 Difference]: With dead ends: 105 [2020-12-01 14:56:42,318 INFO L226 Difference]: Without dead ends: 101 [2020-12-01 14:56:42,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:56:42,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-01 14:56:42,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-12-01 14:56:42,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-01 14:56:42,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-12-01 14:56:42,324 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 17 [2020-12-01 14:56:42,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:42,325 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-12-01 14:56:42,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 14:56:42,325 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-12-01 14:56:42,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 14:56:42,326 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:42,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:42,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-01 14:56:42,328 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]=== [2020-12-01 14:56:42,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:42,329 INFO L82 PathProgramCache]: Analyzing trace with hash 171645234, now seen corresponding path program 1 times [2020-12-01 14:56:42,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:42,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757391555] [2020-12-01 14:56:42,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:42,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:42,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757391555] [2020-12-01 14:56:42,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:42,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 14:56:42,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041395871] [2020-12-01 14:56:42,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 14:56:42,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:42,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 14:56:42,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 14:56:42,421 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 6 states. [2020-12-01 14:56:42,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:42,658 INFO L93 Difference]: Finished difference Result 117 states and 133 transitions. [2020-12-01 14:56:42,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 14:56:42,659 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-01 14:56:42,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:42,659 INFO L225 Difference]: With dead ends: 117 [2020-12-01 14:56:42,660 INFO L226 Difference]: Without dead ends: 115 [2020-12-01 14:56:42,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-01 14:56:42,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-01 14:56:42,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 96. [2020-12-01 14:56:42,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-01 14:56:42,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-12-01 14:56:42,664 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 18 [2020-12-01 14:56:42,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:42,664 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-12-01 14:56:42,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 14:56:42,664 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-12-01 14:56:42,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 14:56:42,665 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:42,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:42,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-01 14:56:42,665 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]=== [2020-12-01 14:56:42,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:42,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1598213575, now seen corresponding path program 1 times [2020-12-01 14:56:42,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:42,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550074320] [2020-12-01 14:56:42,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:42,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:42,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550074320] [2020-12-01 14:56:42,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:42,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 14:56:42,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299652422] [2020-12-01 14:56:42,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 14:56:42,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:42,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 14:56:42,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 14:56:42,733 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 6 states. [2020-12-01 14:56:42,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:42,978 INFO L93 Difference]: Finished difference Result 109 states and 125 transitions. [2020-12-01 14:56:42,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 14:56:42,979 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-01 14:56:42,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:42,980 INFO L225 Difference]: With dead ends: 109 [2020-12-01 14:56:42,980 INFO L226 Difference]: Without dead ends: 107 [2020-12-01 14:56:42,981 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 [2020-12-01 14:56:42,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-01 14:56:42,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 91. [2020-12-01 14:56:42,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-12-01 14:56:42,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2020-12-01 14:56:42,985 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 18 [2020-12-01 14:56:42,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:42,985 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2020-12-01 14:56:42,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 14:56:42,985 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2020-12-01 14:56:42,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 14:56:42,986 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:42,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:42,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-01 14:56:42,986 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]=== [2020-12-01 14:56:42,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:42,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1663106315, now seen corresponding path program 1 times [2020-12-01 14:56:42,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:42,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931341742] [2020-12-01 14:56:42,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:43,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:43,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931341742] [2020-12-01 14:56:43,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:43,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 14:56:43,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075408454] [2020-12-01 14:56:43,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 14:56:43,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:43,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 14:56:43,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 14:56:43,052 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand 6 states. [2020-12-01 14:56:43,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:43,259 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2020-12-01 14:56:43,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 14:56:43,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-01 14:56:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:43,260 INFO L225 Difference]: With dead ends: 91 [2020-12-01 14:56:43,261 INFO L226 Difference]: Without dead ends: 54 [2020-12-01 14:56:43,261 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 [2020-12-01 14:56:43,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-01 14:56:43,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-12-01 14:56:43,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-01 14:56:43,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2020-12-01 14:56:43,263 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 18 [2020-12-01 14:56:43,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:43,263 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2020-12-01 14:56:43,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 14:56:43,263 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2020-12-01 14:56:43,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-01 14:56:43,264 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:43,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:43,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-01 14:56:43,265 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]=== [2020-12-01 14:56:43,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:43,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1909250009, now seen corresponding path program 1 times [2020-12-01 14:56:43,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:43,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701938712] [2020-12-01 14:56:43,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:43,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701938712] [2020-12-01 14:56:43,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:43,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-01 14:56:43,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234088266] [2020-12-01 14:56:43,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-01 14:56:43,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:43,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-01 14:56:43,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-12-01 14:56:43,440 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 13 states. [2020-12-01 14:56:43,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:43,613 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2020-12-01 14:56:43,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-01 14:56:43,616 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-12-01 14:56:43,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:43,616 INFO L225 Difference]: With dead ends: 54 [2020-12-01 14:56:43,617 INFO L226 Difference]: Without dead ends: 52 [2020-12-01 14:56:43,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-12-01 14:56:43,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-01 14:56:43,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-01 14:56:43,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-01 14:56:43,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2020-12-01 14:56:43,619 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 44 [2020-12-01 14:56:43,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:43,619 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2020-12-01 14:56:43,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-01 14:56:43,620 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2020-12-01 14:56:43,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-01 14:56:43,620 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:43,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:43,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-01 14:56:43,621 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]=== [2020-12-01 14:56:43,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:43,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1909269869, now seen corresponding path program 1 times [2020-12-01 14:56:43,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:43,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870133201] [2020-12-01 14:56:43,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:43,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870133201] [2020-12-01 14:56:43,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:43,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-01 14:56:43,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417920020] [2020-12-01 14:56:43,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-01 14:56:43,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:43,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-01 14:56:43,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-12-01 14:56:43,759 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 13 states. [2020-12-01 14:56:43,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:43,929 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2020-12-01 14:56:43,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-01 14:56:43,929 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-12-01 14:56:43,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:43,931 INFO L225 Difference]: With dead ends: 59 [2020-12-01 14:56:43,931 INFO L226 Difference]: Without dead ends: 57 [2020-12-01 14:56:43,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-12-01 14:56:43,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-01 14:56:43,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-12-01 14:56:43,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-01 14:56:43,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2020-12-01 14:56:43,934 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 44 [2020-12-01 14:56:43,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:43,936 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2020-12-01 14:56:43,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-01 14:56:43,936 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2020-12-01 14:56:43,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 14:56:43,936 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:43,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:43,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-01 14:56:43,937 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]=== [2020-12-01 14:56:43,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:43,938 INFO L82 PathProgramCache]: Analyzing trace with hash -942785412, now seen corresponding path program 1 times [2020-12-01 14:56:43,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:43,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810698364] [2020-12-01 14:56:43,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:44,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:44,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810698364] [2020-12-01 14:56:44,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:44,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-01 14:56:44,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421557119] [2020-12-01 14:56:44,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 14:56:44,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:44,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 14:56:44,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 14:56:44,121 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 7 states. [2020-12-01 14:56:44,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:44,208 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-12-01 14:56:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 14:56:44,208 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-12-01 14:56:44,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:44,208 INFO L225 Difference]: With dead ends: 50 [2020-12-01 14:56:44,208 INFO L226 Difference]: Without dead ends: 46 [2020-12-01 14:56:44,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-01 14:56:44,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-01 14:56:44,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-12-01 14:56:44,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-01 14:56:44,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2020-12-01 14:56:44,212 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 45 [2020-12-01 14:56:44,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:44,212 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2020-12-01 14:56:44,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 14:56:44,213 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2020-12-01 14:56:44,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 14:56:44,213 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:44,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:44,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-01 14:56:44,214 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]=== [2020-12-01 14:56:44,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:44,214 INFO L82 PathProgramCache]: Analyzing trace with hash -942169732, now seen corresponding path program 1 times [2020-12-01 14:56:44,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:44,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926420348] [2020-12-01 14:56:44,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:44,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:44,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926420348] [2020-12-01 14:56:44,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:44,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-01 14:56:44,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098787923] [2020-12-01 14:56:44,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 14:56:44,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:44,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 14:56:44,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 14:56:44,330 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 7 states. [2020-12-01 14:56:44,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:44,447 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-12-01 14:56:44,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 14:56:44,453 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-12-01 14:56:44,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:44,454 INFO L225 Difference]: With dead ends: 50 [2020-12-01 14:56:44,454 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 14:56:44,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-01 14:56:44,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 14:56:44,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 14:56:44,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 14:56:44,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 14:56:44,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-12-01 14:56:44,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:44,456 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 14:56:44,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 14:56:44,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 14:56:44,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 14:56:44,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-01 14:56:44,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 14:56:44,627 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,628 INFO L262 CegarLoopResult]: For program point L597(lines 597 969) no Hoare annotation was computed. [2020-12-01 14:56:44,628 INFO L262 CegarLoopResult]: For program point L366(lines 366 991) no Hoare annotation was computed. [2020-12-01 14:56:44,628 INFO L262 CegarLoopResult]: For program point L267(lines 267 275) no Hoare annotation was computed. [2020-12-01 14:56:44,628 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,629 INFO L262 CegarLoopResult]: For program point L400(lines 400 424) no Hoare annotation was computed. [2020-12-01 14:56:44,629 INFO L262 CegarLoopResult]: For program point L136(lines 136 242) no Hoare annotation was computed. [2020-12-01 14:56:44,629 INFO L262 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-12-01 14:56:44,629 INFO L262 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,630 INFO L262 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,630 INFO L262 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,630 INFO L262 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,630 INFO L262 CegarLoopResult]: For program point L929(lines 929 941) no Hoare annotation was computed. [2020-12-01 14:56:44,630 INFO L262 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,630 INFO L262 CegarLoopResult]: For program point L4-5(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,630 INFO L262 CegarLoopResult]: For program point L4-6(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,631 INFO L262 CegarLoopResult]: For program point L4-7(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,631 INFO L262 CegarLoopResult]: For program point L4-8(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,631 INFO L262 CegarLoopResult]: For program point L4-9(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,631 INFO L262 CegarLoopResult]: For program point L4-10(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,631 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,633 INFO L262 CegarLoopResult]: For program point L4-11(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,633 INFO L262 CegarLoopResult]: For program point L665(lines 665 963) no Hoare annotation was computed. [2020-12-01 14:56:44,633 INFO L262 CegarLoopResult]: For program point L4-12(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,633 INFO L262 CegarLoopResult]: For program point L4-13(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,633 INFO L262 CegarLoopResult]: For program point L4-14(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,634 INFO L262 CegarLoopResult]: For program point L4-15(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,635 INFO L262 CegarLoopResult]: For program point L4-16(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,635 INFO L262 CegarLoopResult]: For program point L4-17(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,635 INFO L262 CegarLoopResult]: For program point L4-18(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,637 INFO L262 CegarLoopResult]: For program point L434(lines 434 985) no Hoare annotation was computed. [2020-12-01 14:56:44,637 INFO L262 CegarLoopResult]: For program point L4-19(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,637 INFO L262 CegarLoopResult]: For program point L4-20(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,637 INFO L262 CegarLoopResult]: For program point L4-21(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,637 INFO L262 CegarLoopResult]: For program point L4-22(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,638 INFO L262 CegarLoopResult]: For program point L4-23(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,638 INFO L262 CegarLoopResult]: For program point L4-24(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,638 INFO L262 CegarLoopResult]: For program point L4-25(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,638 INFO L262 CegarLoopResult]: For program point L4-26(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,638 INFO L262 CegarLoopResult]: For program point L4-27(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,638 INFO L262 CegarLoopResult]: For program point L4-28(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,638 INFO L262 CegarLoopResult]: For program point L4-29(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,638 INFO L262 CegarLoopResult]: For program point L4-30(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,639 INFO L262 CegarLoopResult]: For program point L4-31(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,639 INFO L262 CegarLoopResult]: For program point L468(lines 468 492) no Hoare annotation was computed. [2020-12-01 14:56:44,639 INFO L262 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-12-01 14:56:44,639 INFO L262 CegarLoopResult]: For program point L72(lines 72 288) no Hoare annotation was computed. [2020-12-01 14:56:44,639 INFO L262 CegarLoopResult]: For program point L733(lines 733 957) no Hoare annotation was computed. [2020-12-01 14:56:44,639 INFO L262 CegarLoopResult]: For program point L502(lines 502 979) no Hoare annotation was computed. [2020-12-01 14:56:44,639 INFO L262 CegarLoopResult]: For program point L205(lines 205 231) no Hoare annotation was computed. [2020-12-01 14:56:44,640 INFO L265 CegarLoopResult]: At program point L932(lines 17 1006) the Hoare annotation is: true [2020-12-01 14:56:44,640 INFO L262 CegarLoopResult]: For program point L866(lines 866 946) no Hoare annotation was computed. [2020-12-01 14:56:44,641 INFO L262 CegarLoopResult]: For program point L536(lines 536 560) no Hoare annotation was computed. [2020-12-01 14:56:44,641 INFO L262 CegarLoopResult]: For program point L801(lines 801 951) no Hoare annotation was computed. [2020-12-01 14:56:44,641 INFO L262 CegarLoopResult]: For program point L570(lines 570 973) no Hoare annotation was computed. [2020-12-01 14:56:44,641 INFO L258 CegarLoopResult]: At program point L868(lines 26 1000) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-12-01 14:56:44,641 INFO L262 CegarLoopResult]: For program point L604(lines 604 628) no Hoare annotation was computed. [2020-12-01 14:56:44,642 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,642 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,642 INFO L262 CegarLoopResult]: For program point L638(lines 638 967) no Hoare annotation was computed. [2020-12-01 14:56:44,642 INFO L262 CegarLoopResult]: For program point L143(lines 143 236) no Hoare annotation was computed. [2020-12-01 14:56:44,642 INFO L262 CegarLoopResult]: For program point L672(lines 672 696) no Hoare annotation was computed. [2020-12-01 14:56:44,642 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,642 INFO L262 CegarLoopResult]: For program point L309(lines 309 995) no Hoare annotation was computed. [2020-12-01 14:56:44,643 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,643 INFO L258 CegarLoopResult]: At program point L904(lines 65 999) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-12-01 14:56:44,643 INFO L262 CegarLoopResult]: For program point L706(lines 706 961) no Hoare annotation was computed. [2020-12-01 14:56:44,643 INFO L262 CegarLoopResult]: For program point L343(lines 343 354) no Hoare annotation was computed. [2020-12-01 14:56:44,643 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,643 INFO L262 CegarLoopResult]: For program point L46(lines 46 56) no Hoare annotation was computed. [2020-12-01 14:56:44,643 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,644 INFO L265 CegarLoopResult]: At program point L1004(lines 22 1005) the Hoare annotation is: true [2020-12-01 14:56:44,644 INFO L262 CegarLoopResult]: For program point L740(lines 740 764) no Hoare annotation was computed. [2020-12-01 14:56:44,644 INFO L262 CegarLoopResult]: For program point L377(lines 377 989) no Hoare annotation was computed. [2020-12-01 14:56:44,644 INFO L262 CegarLoopResult]: For program point L774(lines 774 955) no Hoare annotation was computed. [2020-12-01 14:56:44,644 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,644 INFO L262 CegarLoopResult]: For program point L411(lines 411 422) no Hoare annotation was computed. [2020-12-01 14:56:44,646 INFO L258 CegarLoopResult]: At program point L940(lines 858 947) the Hoare annotation is: (and (<= 9 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-12-01 14:56:44,646 INFO L262 CegarLoopResult]: For program point L874(lines 874 945) no Hoare annotation was computed. [2020-12-01 14:56:44,646 INFO L262 CegarLoopResult]: For program point L808(lines 808 832) no Hoare annotation was computed. [2020-12-01 14:56:44,646 INFO L262 CegarLoopResult]: For program point L445(lines 445 983) no Hoare annotation was computed. [2020-12-01 14:56:44,646 INFO L262 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-12-01 14:56:44,646 INFO L262 CegarLoopResult]: For program point L842(lines 842 949) no Hoare annotation was computed. [2020-12-01 14:56:44,647 INFO L262 CegarLoopResult]: For program point L479(lines 479 490) no Hoare annotation was computed. [2020-12-01 14:56:44,647 INFO L262 CegarLoopResult]: For program point L248(lines 248 283) no Hoare annotation was computed. [2020-12-01 14:56:44,647 INFO L262 CegarLoopResult]: For program point L83(lines 83 286) no Hoare annotation was computed. [2020-12-01 14:56:44,647 INFO L262 CegarLoopResult]: For program point L513(lines 513 977) no Hoare annotation was computed. [2020-12-01 14:56:44,647 INFO L258 CegarLoopResult]: At program point L282(lines 132 284) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 1 ULTIMATE.start_main_~main__t~0)) [2020-12-01 14:56:44,647 INFO L262 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-12-01 14:56:44,647 INFO L262 CegarLoopResult]: For program point L547(lines 547 558) no Hoare annotation was computed. [2020-12-01 14:56:44,648 INFO L262 CegarLoopResult]: For program point L217(lines 217 229) no Hoare annotation was computed. [2020-12-01 14:56:44,648 INFO L262 CegarLoopResult]: For program point L581(lines 581 971) no Hoare annotation was computed. [2020-12-01 14:56:44,648 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 14:56:44,648 INFO L262 CegarLoopResult]: For program point L317(lines 317 994) no Hoare annotation was computed. [2020-12-01 14:56:44,648 INFO L262 CegarLoopResult]: For program point L615(lines 615 626) no Hoare annotation was computed. [2020-12-01 14:56:44,649 INFO L262 CegarLoopResult]: For program point L649(lines 649 965) no Hoare annotation was computed. [2020-12-01 14:56:44,649 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,649 INFO L262 CegarLoopResult]: For program point L385(lines 385 988) no Hoare annotation was computed. [2020-12-01 14:56:44,649 INFO L262 CegarLoopResult]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2020-12-01 14:56:44,650 INFO L262 CegarLoopResult]: For program point L881(lines 881 907) no Hoare annotation was computed. [2020-12-01 14:56:44,650 INFO L262 CegarLoopResult]: For program point L683(lines 683 694) no Hoare annotation was computed. [2020-12-01 14:56:44,650 INFO L262 CegarLoopResult]: For program point L155(lines 155 234) no Hoare annotation was computed. [2020-12-01 14:56:44,650 INFO L262 CegarLoopResult]: For program point L717(lines 717 959) no Hoare annotation was computed. [2020-12-01 14:56:44,650 INFO L262 CegarLoopResult]: For program point L453(lines 453 982) no Hoare annotation was computed. [2020-12-01 14:56:44,650 INFO L262 CegarLoopResult]: For program point L255(lines 255 277) no Hoare annotation was computed. [2020-12-01 14:56:44,650 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,650 INFO L262 CegarLoopResult]: For program point L751(lines 751 762) no Hoare annotation was computed. [2020-12-01 14:56:44,651 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 14:56:44,651 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,651 INFO L262 CegarLoopResult]: For program point L917(lines 917 943) no Hoare annotation was computed. [2020-12-01 14:56:44,651 INFO L262 CegarLoopResult]: For program point L785(lines 785 953) no Hoare annotation was computed. [2020-12-01 14:56:44,651 INFO L262 CegarLoopResult]: For program point L521(lines 521 976) no Hoare annotation was computed. [2020-12-01 14:56:44,651 INFO L262 CegarLoopResult]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2020-12-01 14:56:44,651 INFO L262 CegarLoopResult]: For program point L819(lines 819 830) no Hoare annotation was computed. [2020-12-01 14:56:44,652 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,652 INFO L262 CegarLoopResult]: For program point L853(lines 853 947) no Hoare annotation was computed. [2020-12-01 14:56:44,652 INFO L262 CegarLoopResult]: For program point L589(lines 589 970) no Hoare annotation was computed. [2020-12-01 14:56:44,652 INFO L262 CegarLoopResult]: For program point L325(lines 325 993) no Hoare annotation was computed. [2020-12-01 14:56:44,652 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 14:56:44,652 INFO L262 CegarLoopResult]: For program point L657(lines 657 964) no Hoare annotation was computed. [2020-12-01 14:56:44,652 INFO L262 CegarLoopResult]: For program point L393(lines 393 987) no Hoare annotation was computed. [2020-12-01 14:56:44,652 INFO L262 CegarLoopResult]: For program point L96(lines 96 285) no Hoare annotation was computed. [2020-12-01 14:56:44,653 INFO L262 CegarLoopResult]: For program point L725(lines 725 958) no Hoare annotation was computed. [2020-12-01 14:56:44,653 INFO L262 CegarLoopResult]: For program point L461(lines 461 981) no Hoare annotation was computed. [2020-12-01 14:56:44,653 INFO L262 CegarLoopResult]: For program point L164(lines 164 233) no Hoare annotation was computed. [2020-12-01 14:56:44,653 INFO L262 CegarLoopResult]: For program point L65(lines 65 999) no Hoare annotation was computed. [2020-12-01 14:56:44,653 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 14:56:44,653 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,653 INFO L262 CegarLoopResult]: For program point L132(lines 132 284) no Hoare annotation was computed. [2020-12-01 14:56:44,653 INFO L262 CegarLoopResult]: For program point L793(lines 793 952) no Hoare annotation was computed. [2020-12-01 14:56:44,654 INFO L262 CegarLoopResult]: For program point L529(lines 529 975) no Hoare annotation was computed. [2020-12-01 14:56:44,654 INFO L262 CegarLoopResult]: For program point L298(lines 298 997) no Hoare annotation was computed. [2020-12-01 14:56:44,654 INFO L262 CegarLoopResult]: For program point L34(lines 34 58) no Hoare annotation was computed. [2020-12-01 14:56:44,654 INFO L262 CegarLoopResult]: For program point L893(lines 893 905) no Hoare annotation was computed. [2020-12-01 14:56:44,654 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-12-01 14:56:44,654 INFO L262 CegarLoopResult]: For program point L332(lines 332 356) no Hoare annotation was computed. [2020-12-01 14:56:44,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 02:56:44 BoogieIcfgContainer [2020-12-01 14:56:44,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 14:56:44,676 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 14:56:44,676 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 14:56:44,676 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 14:56:44,677 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:56:38" (3/4) ... [2020-12-01 14:56:44,680 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 14:56:44,710 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 14:56:44,711 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 14:56:44,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 14:56:44,714 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 14:56:44,864 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_76d9e1a5-c601-4a4f-a730-ebaee44ab9a9/bin/uautomizer/witness.graphml [2020-12-01 14:56:44,864 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 14:56:44,866 INFO L168 Benchmark]: Toolchain (without parser) took 8372.27 ms. Allocated memory was 98.6 MB in the beginning and 155.2 MB in the end (delta: 56.6 MB). Free memory was 66.1 MB in the beginning and 101.0 MB in the end (delta: -34.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2020-12-01 14:56:44,867 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 79.7 MB. Free memory was 51.3 MB in the beginning and 51.3 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:56:44,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.02 ms. Allocated memory is still 98.6 MB. Free memory was 65.7 MB in the beginning and 69.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 14:56:44,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.98 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 66.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:56:44,869 INFO L168 Benchmark]: Boogie Preprocessor took 79.99 ms. Allocated memory is still 98.6 MB. Free memory was 66.5 MB in the beginning and 64.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:56:44,869 INFO L168 Benchmark]: RCFGBuilder took 830.50 ms. Allocated memory is still 98.6 MB. Free memory was 63.8 MB in the beginning and 53.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-12-01 14:56:44,869 INFO L168 Benchmark]: TraceAbstraction took 6670.72 ms. Allocated memory was 98.6 MB in the beginning and 155.2 MB in the end (delta: 56.6 MB). Free memory was 52.8 MB in the beginning and 112.5 MB in the end (delta: -59.7 MB). Peak memory consumption was 71.0 MB. Max. memory is 16.1 GB. [2020-12-01 14:56:44,870 INFO L168 Benchmark]: Witness Printer took 188.41 ms. Allocated memory is still 155.2 MB. Free memory was 112.5 MB in the beginning and 101.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 14:56:44,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 79.7 MB. Free memory was 51.3 MB in the beginning and 51.3 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 517.02 ms. Allocated memory is still 98.6 MB. Free memory was 65.7 MB in the beginning and 69.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.98 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 66.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.99 ms. Allocated memory is still 98.6 MB. Free memory was 66.5 MB in the beginning and 64.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 830.50 ms. Allocated memory is still 98.6 MB. Free memory was 63.8 MB in the beginning and 53.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6670.72 ms. Allocated memory was 98.6 MB in the beginning and 155.2 MB in the end (delta: 56.6 MB). Free memory was 52.8 MB in the beginning and 112.5 MB in the end (delta: -59.7 MB). Peak memory consumption was 71.0 MB. Max. memory is 16.1 GB. * Witness Printer took 188.41 ms. Allocated memory is still 155.2 MB. Free memory was 112.5 MB in the beginning and 101.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 9 <= main__t && main__t <= main__tagbuf_len - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 136 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1038 SDtfs, 1842 SDslu, 1359 SDs, 0 SdLazy, 3334 SolverSat, 404 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 133 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 13 NumberOfFragments, 30 HoareAnnotationTreeSize, 6 FomulaSimplifications, 4275 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 262 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 386 NumberOfCodeBlocks, 386 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 367 ConstructedInterpolants, 0 QuantifiedInterpolants, 31849 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...