./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/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 88a2acfb67edf9e240ff83b999b4d577d317777b ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:58:01,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:58:01,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:58:01,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:58:01,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:58:01,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:58:01,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:58:01,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:58:01,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:58:01,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:58:01,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:58:01,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:58:01,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:58:01,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:58:01,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:58:01,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:58:01,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:58:01,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:58:01,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:58:01,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:58:01,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:58:01,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:58:01,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:58:01,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:58:01,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:58:01,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:58:01,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:58:01,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:58:01,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:58:01,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:58:01,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:58:01,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:58:01,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:58:01,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:58:01,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:58:01,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:58:01,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:58:01,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:58:01,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:58:01,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:58:01,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:58:01,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:58:01,282 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:58:01,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:58:01,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:58:01,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:58:01,286 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:58:01,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:58:01,287 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:58:01,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:58:01,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:58:01,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:58:01,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:58:01,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:58:01,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:58:01,290 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:58:01,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:58:01,290 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:58:01,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:58:01,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:58:01,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:58:01,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:58:01,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:58:01,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:58:01,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:58:01,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:58:01,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:58:01,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:58:01,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:58:01,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:58:01,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:58:01,294 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_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88a2acfb67edf9e240ff83b999b4d577d317777b [2020-11-30 00:58:01,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:58:01,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:58:01,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:58:01,671 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:58:01,673 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:58:01,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2020-11-30 00:58:01,775 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/data/7709c6f7f/0270f90d831e4594a49edfe83dcb49d9/FLAG1b3399114 [2020-11-30 00:58:02,486 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:58:02,494 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2020-11-30 00:58:02,530 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/data/7709c6f7f/0270f90d831e4594a49edfe83dcb49d9/FLAG1b3399114 [2020-11-30 00:58:02,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/data/7709c6f7f/0270f90d831e4594a49edfe83dcb49d9 [2020-11-30 00:58:02,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:58:02,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:58:02,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:02,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:58:02,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:58:02,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:02" (1/1) ... [2020-11-30 00:58:02,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4dd2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:02, skipping insertion in model container [2020-11-30 00:58:02,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:02" (1/1) ... [2020-11-30 00:58:02,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:58:02,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:58:03,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:03,350 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:58:03,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:03,642 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:58:03,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:03 WrapperNode [2020-11-30 00:58:03,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:03,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:58:03,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:58:03,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:58:03,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:03" (1/1) ... [2020-11-30 00:58:03,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:03" (1/1) ... [2020-11-30 00:58:03,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:58:03,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:58:03,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:58:03,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:58:03,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:03" (1/1) ... [2020-11-30 00:58:03,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:03" (1/1) ... [2020-11-30 00:58:03,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:03" (1/1) ... [2020-11-30 00:58:03,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:03" (1/1) ... [2020-11-30 00:58:03,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:03" (1/1) ... [2020-11-30 00:58:03,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:03" (1/1) ... [2020-11-30 00:58:03,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:03" (1/1) ... [2020-11-30 00:58:03,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:58:03,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:58:03,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:58:03,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:58:03,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:58:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:58:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:58:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:58:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:58:05,977 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:58:05,977 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:58:05,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:05 BoogieIcfgContainer [2020-11-30 00:58:05,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:58:05,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:58:05,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:58:05,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:58:05,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:58:02" (1/3) ... [2020-11-30 00:58:05,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225fb767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:58:05, skipping insertion in model container [2020-11-30 00:58:05,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:03" (2/3) ... [2020-11-30 00:58:05,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225fb767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:58:05, skipping insertion in model container [2020-11-30 00:58:05,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:05" (3/3) ... [2020-11-30 00:58:05,999 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label32.c [2020-11-30 00:58:06,021 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:58:06,030 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:58:06,047 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:58:06,097 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:58:06,099 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:58:06,099 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:58:06,099 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:58:06,100 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:58:06,100 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:58:06,100 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:58:06,100 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:58:06,130 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-11-30 00:58:06,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-30 00:58:06,145 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:06,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:06,146 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:06,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:06,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1246856209, now seen corresponding path program 1 times [2020-11-30 00:58:06,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:06,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732640918] [2020-11-30 00:58:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:06,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:06,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732640918] [2020-11-30 00:58:06,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:06,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:58:06,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789987709] [2020-11-30 00:58:06,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:06,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:06,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:06,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:06,625 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-11-30 00:58:08,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:08,357 INFO L93 Difference]: Finished difference Result 686 states and 1217 transitions. [2020-11-30 00:58:08,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:08,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-11-30 00:58:08,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:08,387 INFO L225 Difference]: With dead ends: 686 [2020-11-30 00:58:08,388 INFO L226 Difference]: Without dead ends: 360 [2020-11-30 00:58:08,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:08,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-11-30 00:58:08,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-11-30 00:58:08,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-11-30 00:58:08,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2020-11-30 00:58:08,485 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 55 [2020-11-30 00:58:08,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:08,486 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2020-11-30 00:58:08,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:08,487 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2020-11-30 00:58:08,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-11-30 00:58:08,495 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:08,496 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:08,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:58:08,496 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:08,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:08,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1836731489, now seen corresponding path program 1 times [2020-11-30 00:58:08,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:08,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515163320] [2020-11-30 00:58:08,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:08,854 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:08,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515163320] [2020-11-30 00:58:08,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:08,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:08,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249801024] [2020-11-30 00:58:08,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:58:08,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:08,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:58:08,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:58:08,859 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2020-11-30 00:58:10,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:10,595 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2020-11-30 00:58:10,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:58:10,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2020-11-30 00:58:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:10,603 INFO L225 Difference]: With dead ends: 1074 [2020-11-30 00:58:10,603 INFO L226 Difference]: Without dead ends: 716 [2020-11-30 00:58:10,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:10,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-11-30 00:58:10,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-11-30 00:58:10,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-11-30 00:58:10,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2020-11-30 00:58:10,670 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 134 [2020-11-30 00:58:10,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:10,671 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2020-11-30 00:58:10,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:58:10,671 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2020-11-30 00:58:10,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-30 00:58:10,680 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:10,681 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:10,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:58:10,681 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:10,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:10,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1559431680, now seen corresponding path program 1 times [2020-11-30 00:58:10,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:10,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761164283] [2020-11-30 00:58:10,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:10,940 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:10,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761164283] [2020-11-30 00:58:10,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:10,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:10,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791782120] [2020-11-30 00:58:10,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:10,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:10,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:10,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:10,954 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2020-11-30 00:58:11,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:11,993 INFO L93 Difference]: Finished difference Result 1964 states and 2499 transitions. [2020-11-30 00:58:11,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:12,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-11-30 00:58:12,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:12,008 INFO L225 Difference]: With dead ends: 1964 [2020-11-30 00:58:12,008 INFO L226 Difference]: Without dead ends: 1250 [2020-11-30 00:58:12,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:12,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-11-30 00:58:12,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-11-30 00:58:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-11-30 00:58:12,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2020-11-30 00:58:12,051 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 160 [2020-11-30 00:58:12,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:12,052 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2020-11-30 00:58:12,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:12,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2020-11-30 00:58:12,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-11-30 00:58:12,062 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:12,062 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:12,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:58:12,063 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:12,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:12,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1991475346, now seen corresponding path program 1 times [2020-11-30 00:58:12,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:12,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778060394] [2020-11-30 00:58:12,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:12,333 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-30 00:58:12,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778060394] [2020-11-30 00:58:12,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:12,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:12,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399183374] [2020-11-30 00:58:12,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:58:12,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:12,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:58:12,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:58:12,337 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand 4 states. [2020-11-30 00:58:13,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:13,770 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2020-11-30 00:58:13,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:58:13,771 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 214 [2020-11-30 00:58:13,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:13,782 INFO L225 Difference]: With dead ends: 2705 [2020-11-30 00:58:13,783 INFO L226 Difference]: Without dead ends: 1606 [2020-11-30 00:58:13,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:58:13,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-11-30 00:58:13,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-11-30 00:58:13,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-11-30 00:58:13,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2020-11-30 00:58:13,838 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 214 [2020-11-30 00:58:13,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:13,840 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2020-11-30 00:58:13,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:58:13,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2020-11-30 00:58:13,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-11-30 00:58:13,847 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:13,847 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:13,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:58:13,848 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:13,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:13,849 INFO L82 PathProgramCache]: Analyzing trace with hash -306723624, now seen corresponding path program 1 times [2020-11-30 00:58:13,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:13,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105516207] [2020-11-30 00:58:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:14,523 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 206 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-11-30 00:58:14,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105516207] [2020-11-30 00:58:14,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567289084] [2020-11-30 00:58:14,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:58:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:14,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:58:14,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-11-30 00:58:15,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:58:15,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 00:58:15,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377236928] [2020-11-30 00:58:15,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:15,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:15,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:15,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:58:15,216 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand 3 states. [2020-11-30 00:58:16,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:16,519 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2020-11-30 00:58:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:16,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 341 [2020-11-30 00:58:16,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:16,542 INFO L225 Difference]: With dead ends: 3388 [2020-11-30 00:58:16,542 INFO L226 Difference]: Without dead ends: 1962 [2020-11-30 00:58:16,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:58:16,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-11-30 00:58:16,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2020-11-30 00:58:16,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-11-30 00:58:16,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2220 transitions. [2020-11-30 00:58:16,608 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2220 transitions. Word has length 341 [2020-11-30 00:58:16,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:16,612 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2220 transitions. [2020-11-30 00:58:16,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:16,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2220 transitions. [2020-11-30 00:58:16,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-11-30 00:58:16,619 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:16,619 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:16,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:58:16,834 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:16,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:16,835 INFO L82 PathProgramCache]: Analyzing trace with hash -329069406, now seen corresponding path program 1 times [2020-11-30 00:58:16,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:16,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766463400] [2020-11-30 00:58:16,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:17,475 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 289 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:17,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766463400] [2020-11-30 00:58:17,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366384579] [2020-11-30 00:58:17,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:58:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:17,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:58:17,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-11-30 00:58:17,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:58:17,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-30 00:58:17,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891138716] [2020-11-30 00:58:17,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:17,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:17,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:17,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:58:17,936 INFO L87 Difference]: Start difference. First operand 1962 states and 2220 transitions. Second operand 3 states. [2020-11-30 00:58:19,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:19,282 INFO L93 Difference]: Finished difference Result 4278 states and 4910 transitions. [2020-11-30 00:58:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:19,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 345 [2020-11-30 00:58:19,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:19,307 INFO L225 Difference]: With dead ends: 4278 [2020-11-30 00:58:19,307 INFO L226 Difference]: Without dead ends: 2496 [2020-11-30 00:58:19,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:58:19,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-11-30 00:58:19,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2020-11-30 00:58:19,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-11-30 00:58:19,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2795 transitions. [2020-11-30 00:58:19,395 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2795 transitions. Word has length 345 [2020-11-30 00:58:19,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:19,403 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2795 transitions. [2020-11-30 00:58:19,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:19,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2795 transitions. [2020-11-30 00:58:19,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-11-30 00:58:19,415 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:19,416 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:19,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:58:19,642 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:19,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:19,643 INFO L82 PathProgramCache]: Analyzing trace with hash 422750355, now seen corresponding path program 1 times [2020-11-30 00:58:19,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:19,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849530052] [2020-11-30 00:58:19,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:20,154 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 219 proven. 130 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-11-30 00:58:20,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849530052] [2020-11-30 00:58:20,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390515737] [2020-11-30 00:58:20,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:58:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:20,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:58:20,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-11-30 00:58:20,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:58:20,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-11-30 00:58:20,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106521164] [2020-11-30 00:58:20,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:20,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:20,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:20,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:58:20,551 INFO L87 Difference]: Start difference. First operand 2496 states and 2795 transitions. Second operand 3 states. [2020-11-30 00:58:21,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:21,660 INFO L93 Difference]: Finished difference Result 5524 states and 6312 transitions. [2020-11-30 00:58:21,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:21,662 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 354 [2020-11-30 00:58:21,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:21,685 INFO L225 Difference]: With dead ends: 5524 [2020-11-30 00:58:21,685 INFO L226 Difference]: Without dead ends: 3208 [2020-11-30 00:58:21,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:58:21,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-11-30 00:58:21,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2020-11-30 00:58:21,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-11-30 00:58:21,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3381 transitions. [2020-11-30 00:58:21,792 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3381 transitions. Word has length 354 [2020-11-30 00:58:21,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:21,793 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3381 transitions. [2020-11-30 00:58:21,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:21,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3381 transitions. [2020-11-30 00:58:21,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2020-11-30 00:58:21,805 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:21,806 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:22,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:58:22,030 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:22,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:22,031 INFO L82 PathProgramCache]: Analyzing trace with hash 428544215, now seen corresponding path program 1 times [2020-11-30 00:58:22,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:22,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265086878] [2020-11-30 00:58:22,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:22,392 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-30 00:58:22,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265086878] [2020-11-30 00:58:22,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:22,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:22,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84160526] [2020-11-30 00:58:22,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:22,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:22,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:22,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:22,395 INFO L87 Difference]: Start difference. First operand 3030 states and 3381 transitions. Second operand 3 states. [2020-11-30 00:58:23,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:23,405 INFO L93 Difference]: Finished difference Result 6592 states and 7451 transitions. [2020-11-30 00:58:23,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:23,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 379 [2020-11-30 00:58:23,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:23,432 INFO L225 Difference]: With dead ends: 6592 [2020-11-30 00:58:23,433 INFO L226 Difference]: Without dead ends: 3742 [2020-11-30 00:58:23,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:23,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-11-30 00:58:23,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2020-11-30 00:58:23,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-11-30 00:58:23,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4194 transitions. [2020-11-30 00:58:23,555 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4194 transitions. Word has length 379 [2020-11-30 00:58:23,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:23,557 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 4194 transitions. [2020-11-30 00:58:23,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:23,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4194 transitions. [2020-11-30 00:58:23,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2020-11-30 00:58:23,564 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:23,564 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:23,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:58:23,565 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:23,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:23,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1042853293, now seen corresponding path program 1 times [2020-11-30 00:58:23,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:23,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977917287] [2020-11-30 00:58:23,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:24,141 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-11-30 00:58:24,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977917287] [2020-11-30 00:58:24,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:24,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:24,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543150014] [2020-11-30 00:58:24,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:24,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:24,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:24,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:24,145 INFO L87 Difference]: Start difference. First operand 3742 states and 4194 transitions. Second operand 3 states. [2020-11-30 00:58:25,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:25,168 INFO L93 Difference]: Finished difference Result 7838 states and 8810 transitions. [2020-11-30 00:58:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:25,169 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 439 [2020-11-30 00:58:25,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:25,194 INFO L225 Difference]: With dead ends: 7838 [2020-11-30 00:58:25,194 INFO L226 Difference]: Without dead ends: 4276 [2020-11-30 00:58:25,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:25,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-11-30 00:58:25,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2020-11-30 00:58:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-11-30 00:58:25,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4753 transitions. [2020-11-30 00:58:25,327 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4753 transitions. Word has length 439 [2020-11-30 00:58:25,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:25,329 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4753 transitions. [2020-11-30 00:58:25,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:25,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4753 transitions. [2020-11-30 00:58:25,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2020-11-30 00:58:25,337 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:25,338 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:25,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 00:58:25,340 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:25,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:25,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1509773508, now seen corresponding path program 1 times [2020-11-30 00:58:25,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:25,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769939754] [2020-11-30 00:58:25,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:26,084 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-11-30 00:58:26,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769939754] [2020-11-30 00:58:26,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:26,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:26,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379086507] [2020-11-30 00:58:26,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:58:26,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:26,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:58:26,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:58:26,089 INFO L87 Difference]: Start difference. First operand 4276 states and 4753 transitions. Second operand 4 states. [2020-11-30 00:58:27,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:27,159 INFO L93 Difference]: Finished difference Result 8608 states and 9579 transitions. [2020-11-30 00:58:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:58:27,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 519 [2020-11-30 00:58:27,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:27,187 INFO L225 Difference]: With dead ends: 8608 [2020-11-30 00:58:27,188 INFO L226 Difference]: Without dead ends: 4454 [2020-11-30 00:58:27,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:58:27,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-11-30 00:58:27,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4276. [2020-11-30 00:58:27,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-11-30 00:58:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4615 transitions. [2020-11-30 00:58:27,323 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4615 transitions. Word has length 519 [2020-11-30 00:58:27,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:27,324 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4615 transitions. [2020-11-30 00:58:27,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:58:27,324 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4615 transitions. [2020-11-30 00:58:27,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2020-11-30 00:58:27,332 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:27,333 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:27,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 00:58:27,334 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:27,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:27,335 INFO L82 PathProgramCache]: Analyzing trace with hash 824243095, now seen corresponding path program 1 times [2020-11-30 00:58:27,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:27,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125679357] [2020-11-30 00:58:27,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-11-30 00:58:27,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125679357] [2020-11-30 00:58:27,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:27,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:27,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964053453] [2020-11-30 00:58:27,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:27,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:27,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:27,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:27,804 INFO L87 Difference]: Start difference. First operand 4276 states and 4615 transitions. Second operand 3 states. [2020-11-30 00:58:28,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:28,788 INFO L93 Difference]: Finished difference Result 9084 states and 9847 transitions. [2020-11-30 00:58:28,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:28,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 534 [2020-11-30 00:58:28,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:28,820 INFO L225 Difference]: With dead ends: 9084 [2020-11-30 00:58:28,820 INFO L226 Difference]: Without dead ends: 4988 [2020-11-30 00:58:28,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:28,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-11-30 00:58:28,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4632. [2020-11-30 00:58:28,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-11-30 00:58:28,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4996 transitions. [2020-11-30 00:58:28,947 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4996 transitions. Word has length 534 [2020-11-30 00:58:28,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:28,948 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4996 transitions. [2020-11-30 00:58:28,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:28,949 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4996 transitions. [2020-11-30 00:58:28,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2020-11-30 00:58:28,957 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:28,958 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:28,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 00:58:28,958 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:28,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:28,959 INFO L82 PathProgramCache]: Analyzing trace with hash -216026533, now seen corresponding path program 2 times [2020-11-30 00:58:28,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:28,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169606380] [2020-11-30 00:58:28,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:29,876 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 527 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-30 00:58:29,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169606380] [2020-11-30 00:58:29,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:29,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:29,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259423921] [2020-11-30 00:58:29,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:29,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:29,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:29,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:29,879 INFO L87 Difference]: Start difference. First operand 4632 states and 4996 transitions. Second operand 3 states. [2020-11-30 00:58:30,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:30,716 INFO L93 Difference]: Finished difference Result 9440 states and 10198 transitions. [2020-11-30 00:58:30,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:30,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 545 [2020-11-30 00:58:30,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:30,739 INFO L225 Difference]: With dead ends: 9440 [2020-11-30 00:58:30,746 INFO L226 Difference]: Without dead ends: 4988 [2020-11-30 00:58:30,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:30,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-11-30 00:58:30,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4454. [2020-11-30 00:58:30,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-11-30 00:58:30,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4807 transitions. [2020-11-30 00:58:30,842 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4807 transitions. Word has length 545 [2020-11-30 00:58:30,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:30,843 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4807 transitions. [2020-11-30 00:58:30,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:30,843 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4807 transitions. [2020-11-30 00:58:30,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2020-11-30 00:58:30,851 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:30,852 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:30,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 00:58:30,853 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:30,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:30,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1711640348, now seen corresponding path program 1 times [2020-11-30 00:58:30,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:30,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446193038] [2020-11-30 00:58:30,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:31,491 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 534 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-30 00:58:31,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446193038] [2020-11-30 00:58:31,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:31,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:31,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68410704] [2020-11-30 00:58:31,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:31,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:31,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:31,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:31,498 INFO L87 Difference]: Start difference. First operand 4454 states and 4807 transitions. Second operand 3 states. [2020-11-30 00:58:32,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:32,174 INFO L93 Difference]: Finished difference Result 8906 states and 9627 transitions. [2020-11-30 00:58:32,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:32,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 552 [2020-11-30 00:58:32,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:32,182 INFO L225 Difference]: With dead ends: 8906 [2020-11-30 00:58:32,182 INFO L226 Difference]: Without dead ends: 4632 [2020-11-30 00:58:32,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:32,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-11-30 00:58:32,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2020-11-30 00:58:32,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-11-30 00:58:32,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4765 transitions. [2020-11-30 00:58:32,273 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4765 transitions. Word has length 552 [2020-11-30 00:58:32,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:32,274 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4765 transitions. [2020-11-30 00:58:32,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4765 transitions. [2020-11-30 00:58:32,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2020-11-30 00:58:32,283 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:32,284 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:32,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 00:58:32,284 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:32,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:32,285 INFO L82 PathProgramCache]: Analyzing trace with hash 17986279, now seen corresponding path program 1 times [2020-11-30 00:58:32,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:32,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241647488] [2020-11-30 00:58:32,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2020-11-30 00:58:33,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241647488] [2020-11-30 00:58:33,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369816563] [2020-11-30 00:58:33,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:58:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:33,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:58:33,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:33,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2020-11-30 00:58:33,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:58:33,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-30 00:58:33,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24576033] [2020-11-30 00:58:33,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:33,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:33,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:33,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:33,910 INFO L87 Difference]: Start difference. First operand 4454 states and 4765 transitions. Second operand 3 states. [2020-11-30 00:58:34,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:34,741 INFO L93 Difference]: Finished difference Result 5702 states and 6086 transitions. [2020-11-30 00:58:34,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:34,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 629 [2020-11-30 00:58:34,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:34,755 INFO L225 Difference]: With dead ends: 5702 [2020-11-30 00:58:34,756 INFO L226 Difference]: Without dead ends: 5700 [2020-11-30 00:58:34,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:34,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2020-11-30 00:58:34,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4632. [2020-11-30 00:58:34,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-11-30 00:58:34,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4952 transitions. [2020-11-30 00:58:34,851 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4952 transitions. Word has length 629 [2020-11-30 00:58:34,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:34,851 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4952 transitions. [2020-11-30 00:58:34,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:34,852 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4952 transitions. [2020-11-30 00:58:34,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2020-11-30 00:58:34,863 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:34,864 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:35,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:58:35,079 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:35,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:35,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1288878449, now seen corresponding path program 1 times [2020-11-30 00:58:35,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:35,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957187753] [2020-11-30 00:58:35,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:36,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 1293 proven. 104 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2020-11-30 00:58:36,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957187753] [2020-11-30 00:58:36,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221989313] [2020-11-30 00:58:36,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:58:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:36,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:58:36,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2020-11-30 00:58:37,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:58:37,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-30 00:58:37,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324152001] [2020-11-30 00:58:37,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:37,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:37,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:37,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:58:37,085 INFO L87 Difference]: Start difference. First operand 4632 states and 4952 transitions. Second operand 3 states. [2020-11-30 00:58:37,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:37,822 INFO L93 Difference]: Finished difference Result 10686 states and 11425 transitions. [2020-11-30 00:58:37,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:37,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 711 [2020-11-30 00:58:37,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:37,833 INFO L225 Difference]: With dead ends: 10686 [2020-11-30 00:58:37,833 INFO L226 Difference]: Without dead ends: 5700 [2020-11-30 00:58:37,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 710 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:58:37,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2020-11-30 00:58:37,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4632. [2020-11-30 00:58:37,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-11-30 00:58:37,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4931 transitions. [2020-11-30 00:58:37,993 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4931 transitions. Word has length 711 [2020-11-30 00:58:37,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:37,994 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4931 transitions. [2020-11-30 00:58:37,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:37,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4931 transitions. [2020-11-30 00:58:38,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2020-11-30 00:58:38,015 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:38,016 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:38,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-30 00:58:38,242 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:38,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:38,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1796766707, now seen corresponding path program 1 times [2020-11-30 00:58:38,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:38,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450281131] [2020-11-30 00:58:38,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:39,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2081 backedges. 1559 proven. 155 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2020-11-30 00:58:39,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450281131] [2020-11-30 00:58:39,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518617382] [2020-11-30 00:58:39,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:58:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:39,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:58:39,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:39,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2081 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 1764 trivial. 0 not checked. [2020-11-30 00:58:39,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:58:39,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-30 00:58:39,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95699542] [2020-11-30 00:58:39,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:58:39,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:39,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:39,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:39,996 INFO L87 Difference]: Start difference. First operand 4632 states and 4931 transitions. Second operand 3 states. [2020-11-30 00:58:40,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:40,764 INFO L93 Difference]: Finished difference Result 5522 states and 5870 transitions. [2020-11-30 00:58:40,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:40,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 880 [2020-11-30 00:58:40,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:40,793 INFO L225 Difference]: With dead ends: 5522 [2020-11-30 00:58:40,793 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:58:40,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 883 GetRequests, 880 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:40,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:58:40,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:58:40,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:58:40,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:58:40,803 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 880 [2020-11-30 00:58:40,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:40,803 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:58:40,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:58:40,804 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:58:40,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:58:41,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:58:41,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:58:41,173 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 72 [2020-11-30 00:58:41,550 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 32 [2020-11-30 00:58:41,775 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 32 [2020-11-30 00:58:41,778 INFO L274 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-11-30 00:58:41,778 INFO L274 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-11-30 00:58:41,778 INFO L274 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-11-30 00:58:41,779 INFO L274 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-11-30 00:58:41,779 INFO L274 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-11-30 00:58:41,779 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,779 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,779 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,779 INFO L274 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-11-30 00:58:41,779 INFO L274 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-11-30 00:58:41,779 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-30 00:58:41,779 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-30 00:58:41,779 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-30 00:58:41,779 INFO L274 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-11-30 00:58:41,780 INFO L274 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-11-30 00:58:41,781 INFO L274 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-11-30 00:58:41,781 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,781 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,781 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,781 INFO L274 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-11-30 00:58:41,781 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-30 00:58:41,782 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-30 00:58:41,782 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-30 00:58:41,782 INFO L274 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-11-30 00:58:41,782 INFO L274 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-11-30 00:58:41,782 INFO L274 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-11-30 00:58:41,782 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,782 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,783 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,783 INFO L274 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-11-30 00:58:41,783 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-30 00:58:41,783 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-30 00:58:41,783 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-30 00:58:41,783 INFO L274 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-11-30 00:58:41,784 INFO L274 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-11-30 00:58:41,784 INFO L274 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-11-30 00:58:41,784 INFO L274 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-11-30 00:58:41,784 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,784 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,784 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,785 INFO L274 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-11-30 00:58:41,785 INFO L274 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-11-30 00:58:41,785 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-30 00:58:41,785 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-30 00:58:41,785 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-30 00:58:41,785 INFO L274 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-11-30 00:58:41,785 INFO L274 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-11-30 00:58:41,786 INFO L274 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-11-30 00:58:41,786 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,786 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,786 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,786 INFO L274 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-11-30 00:58:41,786 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-30 00:58:41,787 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-30 00:58:41,787 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-30 00:58:41,787 INFO L274 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-11-30 00:58:41,787 INFO L274 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-11-30 00:58:41,787 INFO L274 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-11-30 00:58:41,787 INFO L274 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-11-30 00:58:41,788 INFO L274 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-11-30 00:58:41,788 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,788 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,788 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,788 INFO L274 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-11-30 00:58:41,788 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-30 00:58:41,788 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-30 00:58:41,789 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-30 00:58:41,789 INFO L274 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-11-30 00:58:41,789 INFO L274 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-11-30 00:58:41,789 INFO L274 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-11-30 00:58:41,789 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:58:41,789 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,790 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,790 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,790 INFO L274 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-11-30 00:58:41,790 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-30 00:58:41,790 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-30 00:58:41,790 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-30 00:58:41,790 INFO L274 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-11-30 00:58:41,791 INFO L274 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-11-30 00:58:41,791 INFO L274 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-11-30 00:58:41,791 INFO L274 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-11-30 00:58:41,791 INFO L274 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-11-30 00:58:41,791 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,791 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,791 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,792 INFO L274 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-11-30 00:58:41,792 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-30 00:58:41,792 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-30 00:58:41,792 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-30 00:58:41,792 INFO L274 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-11-30 00:58:41,792 INFO L274 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-11-30 00:58:41,793 INFO L274 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-11-30 00:58:41,793 INFO L274 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-11-30 00:58:41,793 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,793 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,793 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,793 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-30 00:58:41,793 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-30 00:58:41,794 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-30 00:58:41,794 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:58:41,794 INFO L274 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-11-30 00:58:41,794 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:58:41,794 INFO L274 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-11-30 00:58:41,794 INFO L274 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-11-30 00:58:41,795 INFO L274 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-11-30 00:58:41,795 INFO L274 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-11-30 00:58:41,795 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,795 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,795 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,795 INFO L274 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-11-30 00:58:41,796 INFO L274 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-11-30 00:58:41,796 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-30 00:58:41,796 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-30 00:58:41,796 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-30 00:58:41,796 INFO L274 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-11-30 00:58:41,796 INFO L274 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-11-30 00:58:41,796 INFO L274 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-11-30 00:58:41,797 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,797 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,797 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,797 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-30 00:58:41,797 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-30 00:58:41,797 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-30 00:58:41,798 INFO L274 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-11-30 00:58:41,798 INFO L274 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-11-30 00:58:41,798 INFO L274 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-11-30 00:58:41,798 INFO L274 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-11-30 00:58:41,798 INFO L274 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-11-30 00:58:41,798 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,798 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,798 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-30 00:58:41,799 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-30 00:58:41,800 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-30 00:58:41,800 INFO L274 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-11-30 00:58:41,800 INFO L274 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-11-30 00:58:41,800 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:58:41,800 INFO L274 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-11-30 00:58:41,800 INFO L274 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-11-30 00:58:41,800 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,800 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,800 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,801 INFO L274 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-11-30 00:58:41,801 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-30 00:58:41,801 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-30 00:58:41,801 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-30 00:58:41,801 INFO L274 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-11-30 00:58:41,801 INFO L274 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-11-30 00:58:41,802 INFO L274 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-11-30 00:58:41,802 INFO L274 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-11-30 00:58:41,802 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,802 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,802 INFO L274 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-11-30 00:58:41,802 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-30 00:58:41,802 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-30 00:58:41,803 INFO L274 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-11-30 00:58:41,803 INFO L274 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-11-30 00:58:41,803 INFO L274 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-11-30 00:58:41,803 INFO L274 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-11-30 00:58:41,803 INFO L274 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-11-30 00:58:41,803 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,804 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,804 INFO L274 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-11-30 00:58:41,804 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:58:41,804 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-30 00:58:41,804 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-30 00:58:41,804 INFO L274 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-11-30 00:58:41,804 INFO L274 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-11-30 00:58:41,805 INFO L274 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-11-30 00:58:41,805 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,805 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,806 INFO L270 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse2 (<= ~a15~0 8)) (.cse0 (<= ~a15~0 5)) (.cse3 (<= ~a12~0 11)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and (<= 7 ~a15~0) .cse1 .cse2) (and (< 80 ~a12~0) .cse1) (and .cse3 .cse1 .cse2) (and (<= ~a21~0 7) .cse0 (<= (+ ~a12~0 49) 0)) (and .cse1 (<= ~a21~0 8)) (and .cse3 .cse1 (<= 10 ~a21~0)))) [2020-11-30 00:58:41,806 INFO L274 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-11-30 00:58:41,806 INFO L274 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-11-30 00:58:41,806 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-30 00:58:41,806 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-30 00:58:41,806 INFO L274 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-11-30 00:58:41,806 INFO L274 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-11-30 00:58:41,807 INFO L274 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-11-30 00:58:41,807 INFO L274 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-11-30 00:58:41,807 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,807 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,807 INFO L277 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-11-30 00:58:41,807 INFO L274 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-11-30 00:58:41,808 INFO L274 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-11-30 00:58:41,808 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-30 00:58:41,808 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-30 00:58:41,808 INFO L274 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-11-30 00:58:41,808 INFO L274 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-11-30 00:58:41,808 INFO L274 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-11-30 00:58:41,809 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,809 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,809 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:58:41,809 INFO L274 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-11-30 00:58:41,809 INFO L274 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-11-30 00:58:41,809 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-30 00:58:41,809 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-30 00:58:41,810 INFO L274 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-11-30 00:58:41,810 INFO L274 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-11-30 00:58:41,810 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,810 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,810 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-30 00:58:41,810 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,811 INFO L274 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-11-30 00:58:41,811 INFO L270 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse2 (<= ~a15~0 8)) (.cse0 (<= ~a15~0 5)) (.cse3 (<= ~a12~0 11)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and (<= 7 ~a15~0) .cse1 .cse2) (and (< 80 ~a12~0) .cse1) (and .cse3 .cse1 .cse2) (and (<= ~a21~0 7) .cse0 (<= (+ ~a12~0 49) 0)) (and .cse1 (<= ~a21~0 8)) (and .cse3 .cse1 (<= 10 ~a21~0)))) [2020-11-30 00:58:41,811 INFO L274 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-11-30 00:58:41,811 INFO L274 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-11-30 00:58:41,811 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-30 00:58:41,812 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-30 00:58:41,812 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-30 00:58:41,812 INFO L274 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-11-30 00:58:41,812 INFO L274 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-11-30 00:58:41,812 INFO L274 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-11-30 00:58:41,812 INFO L274 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-11-30 00:58:41,812 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,813 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,813 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:58:41,813 INFO L274 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-11-30 00:58:41,813 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-30 00:58:41,813 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-30 00:58:41,813 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-30 00:58:41,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:58:41 BoogieIcfgContainer [2020-11-30 00:58:41,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:58:41,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:58:41,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:58:41,837 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:58:41,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:05" (3/4) ... [2020-11-30 00:58:41,842 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:58:41,871 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:58:41,873 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:58:41,875 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:58:41,877 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:58:42,052 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6b2d8905-ca0a-42e5-a0f7-d409ea8219c4/bin/uautomizer/witness.graphml [2020-11-30 00:58:42,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:58:42,054 INFO L168 Benchmark]: Toolchain (without parser) took 39365.02 ms. Allocated memory was 102.8 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 73.9 MB in the beginning and 1.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 372.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:42,054 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 102.8 MB. Free memory is still 61.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:58:42,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 954.61 ms. Allocated memory is still 102.8 MB. Free memory was 73.6 MB in the beginning and 57.2 MB in the end (delta: 16.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:42,055 INFO L168 Benchmark]: Boogie Procedure Inliner took 172.22 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 57.2 MB in the beginning and 96.3 MB in the end (delta: -39.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:42,055 INFO L168 Benchmark]: Boogie Preprocessor took 135.23 ms. Allocated memory is still 123.7 MB. Free memory was 95.7 MB in the beginning and 89.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:42,056 INFO L168 Benchmark]: RCFGBuilder took 2029.26 ms. Allocated memory is still 123.7 MB. Free memory was 89.4 MB in the beginning and 85.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:42,056 INFO L168 Benchmark]: TraceAbstraction took 35850.64 ms. Allocated memory was 123.7 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 85.7 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 345.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:42,057 INFO L168 Benchmark]: Witness Printer took 215.89 ms. Allocated memory is still 1.6 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:42,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 102.8 MB. Free memory is still 61.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 954.61 ms. Allocated memory is still 102.8 MB. Free memory was 73.6 MB in the beginning and 57.2 MB in the end (delta: 16.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 172.22 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 57.2 MB in the beginning and 96.3 MB in the end (delta: -39.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 135.23 ms. Allocated memory is still 123.7 MB. Free memory was 95.7 MB in the beginning and 89.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2029.26 ms. Allocated memory is still 123.7 MB. Free memory was 89.4 MB in the beginning and 85.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 35850.64 ms. Allocated memory was 123.7 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 85.7 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 345.4 MB. Max. memory is 16.1 GB. * Witness Printer took 215.89 ms. Allocated memory is still 1.6 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((a15 <= 5 && a24 == 1) || ((7 <= a15 && a24 == 1) && a15 <= 8)) || (80 < a12 && a24 == 1)) || ((a12 <= 11 && a24 == 1) && a15 <= 8)) || ((a21 <= 7 && a15 <= 5) && a12 + 49 <= 0)) || (a24 == 1 && a21 <= 8)) || ((a12 <= 11 && a24 == 1) && 10 <= a21) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((a15 <= 5 && a24 == 1) || ((7 <= a15 && a24 == 1) && a15 <= 8)) || (80 < a12 && a24 == 1)) || ((a12 <= 11 && a24 == 1) && a15 <= 8)) || ((a21 <= 7 && a15 <= 5) && a12 + 49 <= 0)) || (a24 == 1 && a21 <= 8)) || ((a12 <= 11 && a24 == 1) && 10 <= a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 34.9s, OverallIterations: 16, TraceHistogramMax: 7, AutomataDifference: 18.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1901 SDtfs, 1890 SDslu, 84 SDs, 0 SdLazy, 8079 SolverSat, 1018 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3309 GetRequests, 3271 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4632occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 3560 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 79 NumberOfFragments, 129 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1924 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1264 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 10051 NumberOfCodeBlocks, 10051 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 10029 ConstructedInterpolants, 0 QuantifiedInterpolants, 16545777 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4242 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 22 InterpolantComputations, 16 PerfectInterpolantSequences, 16243/17172 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...