./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label50.c -s /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/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 5e19c1710261daab1224ed195d8f9cf4ddce74c6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:42:17,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:42:17,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:42:17,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:42:17,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:42:17,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:42:17,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:42:17,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:42:17,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:42:17,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:42:17,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:42:17,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:42:17,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:42:17,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:42:17,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:42:17,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:42:17,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:42:17,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:42:17,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:42:17,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:42:17,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:42:17,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:42:17,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:42:17,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:42:17,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:42:17,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:42:17,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:42:17,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:42:17,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:42:17,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:42:17,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:42:17,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:42:17,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:42:17,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:42:17,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:42:17,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:42:17,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:42:17,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:42:17,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:42:17,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:42:17,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:42:17,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:42:17,288 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:42:17,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:42:17,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:42:17,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:42:17,296 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:42:17,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:42:17,297 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:42:17,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:42:17,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:42:17,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:42:17,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:42:17,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:42:17,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:42:17,300 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:42:17,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:42:17,301 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:42:17,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:42:17,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:42:17,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:42:17,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:42:17,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:42:17,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:42:17,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:42:17,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:42:17,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:42:17,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:42:17,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:42:17,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:42:17,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:42:17,305 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_39128527-b6b7-46b1-b639-443fe8498297/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e19c1710261daab1224ed195d8f9cf4ddce74c6 [2020-12-01 15:42:17,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:42:17,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:42:17,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:42:17,764 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:42:17,766 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:42:17,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2020-12-01 15:42:17,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/data/47bfd64b5/e39544292d9f4374bde8902179c7ea08/FLAG51d8a407c [2020-12-01 15:42:18,606 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:42:18,607 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2020-12-01 15:42:18,628 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/data/47bfd64b5/e39544292d9f4374bde8902179c7ea08/FLAG51d8a407c [2020-12-01 15:42:18,787 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/data/47bfd64b5/e39544292d9f4374bde8902179c7ea08 [2020-12-01 15:42:18,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:42:18,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:42:18,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:42:18,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:42:18,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:42:18,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:42:18" (1/1) ... [2020-12-01 15:42:18,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f89fdd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:18, skipping insertion in model container [2020-12-01 15:42:18,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:42:18" (1/1) ... [2020-12-01 15:42:18,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:42:18,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:42:19,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:42:19,533 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:42:19,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:42:19,792 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:42:19,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:19 WrapperNode [2020-12-01 15:42:19,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:42:19,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:42:19,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:42:19,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:42:19,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:19" (1/1) ... [2020-12-01 15:42:19,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:19" (1/1) ... [2020-12-01 15:42:19,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:42:19,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:42:19,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:42:19,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:42:19,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:19" (1/1) ... [2020-12-01 15:42:19,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:19" (1/1) ... [2020-12-01 15:42:19,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:19" (1/1) ... [2020-12-01 15:42:19,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:19" (1/1) ... [2020-12-01 15:42:19,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:19" (1/1) ... [2020-12-01 15:42:20,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:19" (1/1) ... [2020-12-01 15:42:20,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:19" (1/1) ... [2020-12-01 15:42:20,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:42:20,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:42:20,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:42:20,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:42:20,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:42:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:42:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:42:20,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:42:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:42:22,249 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:42:22,249 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:42:22,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:42:22 BoogieIcfgContainer [2020-12-01 15:42:22,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:42:22,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:42:22,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:42:22,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:42:22,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:42:18" (1/3) ... [2020-12-01 15:42:22,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9acf131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:42:22, skipping insertion in model container [2020-12-01 15:42:22,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:19" (2/3) ... [2020-12-01 15:42:22,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9acf131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:42:22, skipping insertion in model container [2020-12-01 15:42:22,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:42:22" (3/3) ... [2020-12-01 15:42:22,265 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label50.c [2020-12-01 15:42:22,287 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:42:22,291 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:42:22,306 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:42:22,357 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:42:22,358 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:42:22,358 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:42:22,358 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:42:22,358 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:42:22,358 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:42:22,358 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:42:22,359 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:42:22,391 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-12-01 15:42:22,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-01 15:42:22,412 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:22,413 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] [2020-12-01 15:42:22,413 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:22,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:22,421 INFO L82 PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times [2020-12-01 15:42:22,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:22,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982707549] [2020-12-01 15:42:22,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:22,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:42:22,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982707549] [2020-12-01 15:42:22,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:22,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:42:22,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236899197] [2020-12-01 15:42:22,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:42:22,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:22,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:42:22,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:42:22,927 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 4 states. [2020-12-01 15:42:24,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:24,952 INFO L93 Difference]: Finished difference Result 853 states and 1561 transitions. [2020-12-01 15:42:24,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:42:24,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-12-01 15:42:24,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:24,983 INFO L225 Difference]: With dead ends: 853 [2020-12-01 15:42:24,984 INFO L226 Difference]: Without dead ends: 538 [2020-12-01 15:42:24,988 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 [2020-12-01 15:42:25,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-12-01 15:42:25,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2020-12-01 15:42:25,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-12-01 15:42:25,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2020-12-01 15:42:25,082 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 37 [2020-12-01 15:42:25,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:25,082 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2020-12-01 15:42:25,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:42:25,084 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2020-12-01 15:42:25,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-12-01 15:42:25,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:25,098 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, 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] [2020-12-01 15:42:25,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:42:25,099 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:25,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:25,102 INFO L82 PathProgramCache]: Analyzing trace with hash 338206701, now seen corresponding path program 1 times [2020-12-01 15:42:25,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:25,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668658539] [2020-12-01 15:42:25,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:25,397 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-01 15:42:25,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668658539] [2020-12-01 15:42:25,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:25,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:42:25,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746242060] [2020-12-01 15:42:25,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:42:25,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:25,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:42:25,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:42:25,402 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand 3 states. [2020-12-01 15:42:26,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:26,493 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2020-12-01 15:42:26,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:42:26,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2020-12-01 15:42:26,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:26,499 INFO L225 Difference]: With dead ends: 1074 [2020-12-01 15:42:26,499 INFO L226 Difference]: Without dead ends: 716 [2020-12-01 15:42:26,502 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 [2020-12-01 15:42:26,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-01 15:42:26,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-12-01 15:42:26,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-12-01 15:42:26,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2020-12-01 15:42:26,545 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 185 [2020-12-01 15:42:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:26,546 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2020-12-01 15:42:26,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:42:26,546 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2020-12-01 15:42:26,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-12-01 15:42:26,558 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:26,559 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, 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] [2020-12-01 15:42:26,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:42:26,559 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:26,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:26,560 INFO L82 PathProgramCache]: Analyzing trace with hash -2052662940, now seen corresponding path program 1 times [2020-12-01 15:42:26,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:26,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396391124] [2020-12-01 15:42:26,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:26,954 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 15:42:26,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396391124] [2020-12-01 15:42:26,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:26,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:42:26,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231435674] [2020-12-01 15:42:26,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:42:26,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:26,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:42:26,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:42:26,958 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand 4 states. [2020-12-01 15:42:28,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:28,124 INFO L93 Difference]: Finished difference Result 1637 states and 2268 transitions. [2020-12-01 15:42:28,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:42:28,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 208 [2020-12-01 15:42:28,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:28,133 INFO L225 Difference]: With dead ends: 1637 [2020-12-01 15:42:28,134 INFO L226 Difference]: Without dead ends: 1072 [2020-12-01 15:42:28,135 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 [2020-12-01 15:42:28,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-01 15:42:28,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2020-12-01 15:42:28,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-12-01 15:42:28,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2020-12-01 15:42:28,174 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 208 [2020-12-01 15:42:28,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:28,175 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2020-12-01 15:42:28,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:42:28,175 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2020-12-01 15:42:28,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-12-01 15:42:28,185 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:28,186 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, 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:42:28,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:42:28,187 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:28,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:28,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1310585928, now seen corresponding path program 1 times [2020-12-01 15:42:28,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:28,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808277175] [2020-12-01 15:42:28,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 168 proven. 130 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-12-01 15:42:29,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808277175] [2020-12-01 15:42:29,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951313385] [2020-12-01 15:42:29,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/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 [2020-12-01 15:42:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:29,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:42:29,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:42:30,009 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2020-12-01 15:42:30,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:42:30,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-01 15:42:30,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761929353] [2020-12-01 15:42:30,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:42:30,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:30,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:42:30,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:42:30,012 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand 3 states. [2020-12-01 15:42:30,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:30,981 INFO L93 Difference]: Finished difference Result 2320 states and 2778 transitions. [2020-12-01 15:42:30,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:42:30,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2020-12-01 15:42:30,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:30,999 INFO L225 Difference]: With dead ends: 2320 [2020-12-01 15:42:30,999 INFO L226 Difference]: Without dead ends: 1606 [2020-12-01 15:42:31,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:42:31,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-12-01 15:42:31,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2020-12-01 15:42:31,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-12-01 15:42:31,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1627 transitions. [2020-12-01 15:42:31,037 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1627 transitions. Word has length 339 [2020-12-01 15:42:31,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:31,040 INFO L481 AbstractCegarLoop]: Abstraction has 1428 states and 1627 transitions. [2020-12-01 15:42:31,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:42:31,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1627 transitions. [2020-12-01 15:42:31,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2020-12-01 15:42:31,086 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:31,087 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:42:31,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:42:31,297 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:31,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:31,298 INFO L82 PathProgramCache]: Analyzing trace with hash 300591091, now seen corresponding path program 1 times [2020-12-01 15:42:31,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:31,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146147316] [2020-12-01 15:42:31,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:32,032 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 533 proven. 130 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-01 15:42:32,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146147316] [2020-12-01 15:42:32,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829674920] [2020-12-01 15:42:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/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 [2020-12-01 15:42:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:32,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:42:32,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:42:32,761 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2020-12-01 15:42:32,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:42:32,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-01 15:42:32,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87400262] [2020-12-01 15:42:32,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:42:32,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:32,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:42:32,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:42:32,764 INFO L87 Difference]: Start difference. First operand 1428 states and 1627 transitions. Second operand 3 states. [2020-12-01 15:42:33,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:33,707 INFO L93 Difference]: Finished difference Result 3388 states and 3938 transitions. [2020-12-01 15:42:33,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:42:33,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 438 [2020-12-01 15:42:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:33,720 INFO L225 Difference]: With dead ends: 3388 [2020-12-01 15:42:33,721 INFO L226 Difference]: Without dead ends: 2140 [2020-12-01 15:42:33,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:42:33,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-01 15:42:33,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2020-12-01 15:42:33,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-12-01 15:42:33,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2218 transitions. [2020-12-01 15:42:33,781 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2218 transitions. Word has length 438 [2020-12-01 15:42:33,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:33,782 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2218 transitions. [2020-12-01 15:42:33,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:42:33,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2218 transitions. [2020-12-01 15:42:33,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-12-01 15:42:33,794 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:33,795 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:42:34,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:42:34,011 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:34,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:34,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1174222630, now seen corresponding path program 1 times [2020-12-01 15:42:34,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:34,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760740300] [2020-12-01 15:42:34,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 590 proven. 130 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-01 15:42:34,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760740300] [2020-12-01 15:42:34,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793939375] [2020-12-01 15:42:34,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/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 [2020-12-01 15:42:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:34,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:42:34,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:42:35,428 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2020-12-01 15:42:35,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:42:35,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-01 15:42:35,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921052333] [2020-12-01 15:42:35,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:42:35,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:35,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:42:35,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:42:35,434 INFO L87 Difference]: Start difference. First operand 1962 states and 2218 transitions. Second operand 3 states. [2020-12-01 15:42:36,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:36,233 INFO L93 Difference]: Finished difference Result 4278 states and 4939 transitions. [2020-12-01 15:42:36,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:42:36,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 457 [2020-12-01 15:42:36,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:36,249 INFO L225 Difference]: With dead ends: 4278 [2020-12-01 15:42:36,249 INFO L226 Difference]: Without dead ends: 2496 [2020-12-01 15:42:36,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:42:36,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-12-01 15:42:36,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2140. [2020-12-01 15:42:36,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-01 15:42:36,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2493 transitions. [2020-12-01 15:42:36,315 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2493 transitions. Word has length 457 [2020-12-01 15:42:36,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:36,316 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2493 transitions. [2020-12-01 15:42:36,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:42:36,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2493 transitions. [2020-12-01 15:42:36,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2020-12-01 15:42:36,327 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:36,328 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:42:36,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:42:36,541 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:36,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:36,542 INFO L82 PathProgramCache]: Analyzing trace with hash 600969501, now seen corresponding path program 1 times [2020-12-01 15:42:36,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:36,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317839216] [2020-12-01 15:42:36,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 606 proven. 130 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-01 15:42:37,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317839216] [2020-12-01 15:42:37,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322490486] [2020-12-01 15:42:37,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/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 [2020-12-01 15:42:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:37,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:42:37,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:42:38,224 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2020-12-01 15:42:38,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:42:38,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-12-01 15:42:38,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306232556] [2020-12-01 15:42:38,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:42:38,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:38,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:42:38,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:42:38,226 INFO L87 Difference]: Start difference. First operand 2140 states and 2493 transitions. Second operand 3 states. [2020-12-01 15:42:39,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:39,039 INFO L93 Difference]: Finished difference Result 4278 states and 4999 transitions. [2020-12-01 15:42:39,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:42:39,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 471 [2020-12-01 15:42:39,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:39,053 INFO L225 Difference]: With dead ends: 4278 [2020-12-01 15:42:39,053 INFO L226 Difference]: Without dead ends: 2318 [2020-12-01 15:42:39,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:42:39,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-12-01 15:42:39,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2020-12-01 15:42:39,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-12-01 15:42:39,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2657 transitions. [2020-12-01 15:42:39,124 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2657 transitions. Word has length 471 [2020-12-01 15:42:39,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:39,125 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2657 transitions. [2020-12-01 15:42:39,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:42:39,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2657 transitions. [2020-12-01 15:42:39,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2020-12-01 15:42:39,159 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:39,160 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, 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, 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, 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] [2020-12-01 15:42:39,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:42:39,361 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:39,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:39,361 INFO L82 PathProgramCache]: Analyzing trace with hash 213266864, now seen corresponding path program 1 times [2020-12-01 15:42:39,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:39,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169454984] [2020-12-01 15:42:39,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 639 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2020-12-01 15:42:39,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169454984] [2020-12-01 15:42:39,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:39,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:42:39,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592270181] [2020-12-01 15:42:39,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:42:39,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:39,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:42:39,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:42:39,871 INFO L87 Difference]: Start difference. First operand 2318 states and 2657 transitions. Second operand 3 states. [2020-12-01 15:42:40,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:40,818 INFO L93 Difference]: Finished difference Result 4456 states and 5133 transitions. [2020-12-01 15:42:40,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:42:40,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 538 [2020-12-01 15:42:40,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:40,832 INFO L225 Difference]: With dead ends: 4456 [2020-12-01 15:42:40,832 INFO L226 Difference]: Without dead ends: 2318 [2020-12-01 15:42:40,835 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 [2020-12-01 15:42:40,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-12-01 15:42:40,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2020-12-01 15:42:40,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-12-01 15:42:40,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2602 transitions. [2020-12-01 15:42:40,896 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2602 transitions. Word has length 538 [2020-12-01 15:42:40,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:40,897 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2602 transitions. [2020-12-01 15:42:40,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:42:40,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2602 transitions. [2020-12-01 15:42:40,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2020-12-01 15:42:40,904 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:40,905 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-01 15:42:40,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 15:42:40,906 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:40,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:40,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1275869497, now seen corresponding path program 1 times [2020-12-01 15:42:40,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:40,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327026881] [2020-12-01 15:42:40,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:41,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 900 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2020-12-01 15:42:41,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327026881] [2020-12-01 15:42:41,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:41,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:42:41,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158590745] [2020-12-01 15:42:41,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:42:41,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:41,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:42:41,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:42:41,520 INFO L87 Difference]: Start difference. First operand 2318 states and 2602 transitions. Second operand 3 states. [2020-12-01 15:42:42,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:42,212 INFO L93 Difference]: Finished difference Result 5524 states and 6261 transitions. [2020-12-01 15:42:42,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:42:42,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 651 [2020-12-01 15:42:42,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:42,231 INFO L225 Difference]: With dead ends: 5524 [2020-12-01 15:42:42,231 INFO L226 Difference]: Without dead ends: 3386 [2020-12-01 15:42:42,234 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 [2020-12-01 15:42:42,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-12-01 15:42:42,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2020-12-01 15:42:42,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-12-01 15:42:42,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3781 transitions. [2020-12-01 15:42:42,321 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3781 transitions. Word has length 651 [2020-12-01 15:42:42,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:42,322 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3781 transitions. [2020-12-01 15:42:42,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:42:42,323 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3781 transitions. [2020-12-01 15:42:42,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2020-12-01 15:42:42,332 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:42,333 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2020-12-01 15:42:42,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 15:42:42,334 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:42,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:42,335 INFO L82 PathProgramCache]: Analyzing trace with hash 321804815, now seen corresponding path program 1 times [2020-12-01 15:42:42,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:42,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482938318] [2020-12-01 15:42:42,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:43,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 1022 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2020-12-01 15:42:43,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482938318] [2020-12-01 15:42:43,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:43,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:42:43,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227602576] [2020-12-01 15:42:43,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:42:43,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:43,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:42:43,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:42:43,053 INFO L87 Difference]: Start difference. First operand 3386 states and 3781 transitions. Second operand 3 states. [2020-12-01 15:42:43,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:43,806 INFO L93 Difference]: Finished difference Result 6592 states and 7381 transitions. [2020-12-01 15:42:43,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:42:43,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 711 [2020-12-01 15:42:43,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:43,824 INFO L225 Difference]: With dead ends: 6592 [2020-12-01 15:42:43,824 INFO L226 Difference]: Without dead ends: 3386 [2020-12-01 15:42:43,828 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 [2020-12-01 15:42:43,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-12-01 15:42:43,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2020-12-01 15:42:43,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-12-01 15:42:43,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3741 transitions. [2020-12-01 15:42:43,947 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3741 transitions. Word has length 711 [2020-12-01 15:42:43,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:43,948 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3741 transitions. [2020-12-01 15:42:43,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:42:43,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3741 transitions. [2020-12-01 15:42:43,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 736 [2020-12-01 15:42:43,961 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:43,962 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, 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, 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, 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, 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] [2020-12-01 15:42:43,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-01 15:42:43,963 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:43,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:43,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1379265069, now seen corresponding path program 1 times [2020-12-01 15:42:43,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:43,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675269427] [2020-12-01 15:42:43,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:45,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 839 proven. 23 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2020-12-01 15:42:45,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675269427] [2020-12-01 15:42:45,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157818691] [2020-12-01 15:42:45,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/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 [2020-12-01 15:42:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:45,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:42:45,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:42:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 862 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2020-12-01 15:42:46,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:42:46,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-01 15:42:46,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354441811] [2020-12-01 15:42:46,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:42:46,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:46,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:42:46,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:42:46,361 INFO L87 Difference]: Start difference. First operand 3386 states and 3741 transitions. Second operand 4 states. [2020-12-01 15:42:47,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:47,574 INFO L93 Difference]: Finished difference Result 7126 states and 7872 transitions. [2020-12-01 15:42:47,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:42:47,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 735 [2020-12-01 15:42:47,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:47,593 INFO L225 Difference]: With dead ends: 7126 [2020-12-01 15:42:47,594 INFO L226 Difference]: Without dead ends: 3564 [2020-12-01 15:42:47,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 733 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:42:47,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2020-12-01 15:42:47,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2020-12-01 15:42:47,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-12-01 15:42:47,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3444 transitions. [2020-12-01 15:42:47,676 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3444 transitions. Word has length 735 [2020-12-01 15:42:47,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:47,677 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3444 transitions. [2020-12-01 15:42:47,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:42:47,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3444 transitions. [2020-12-01 15:42:47,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2020-12-01 15:42:47,687 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:47,688 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, 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, 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, 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] [2020-12-01 15:42:47,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-01 15:42:47,917 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:47,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:47,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1194277337, now seen corresponding path program 1 times [2020-12-01 15:42:47,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:47,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782042758] [2020-12-01 15:42:47,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2020-12-01 15:42:48,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782042758] [2020-12-01 15:42:48,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94866361] [2020-12-01 15:42:48,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/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 [2020-12-01 15:42:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:49,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:42:49,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:42:50,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2020-12-01 15:42:50,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:42:50,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-12-01 15:42:50,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627936284] [2020-12-01 15:42:50,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:42:50,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:50,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:42:50,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:42:50,313 INFO L87 Difference]: Start difference. First operand 3208 states and 3444 transitions. Second operand 4 states. [2020-12-01 15:42:51,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:51,777 INFO L93 Difference]: Finished difference Result 7304 states and 7873 transitions. [2020-12-01 15:42:51,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:42:51,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 806 [2020-12-01 15:42:51,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:51,800 INFO L225 Difference]: With dead ends: 7304 [2020-12-01 15:42:51,800 INFO L226 Difference]: Without dead ends: 4276 [2020-12-01 15:42:51,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 807 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:42:51,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-12-01 15:42:51,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3920. [2020-12-01 15:42:51,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-12-01 15:42:51,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4220 transitions. [2020-12-01 15:42:51,903 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4220 transitions. Word has length 806 [2020-12-01 15:42:51,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:51,904 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4220 transitions. [2020-12-01 15:42:51,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:42:51,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4220 transitions. [2020-12-01 15:42:51,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2020-12-01 15:42:51,917 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:51,918 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-12-01 15:42:52,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:42:52,137 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:52,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:52,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1898396470, now seen corresponding path program 1 times [2020-12-01 15:42:52,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:52,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550013344] [2020-12-01 15:42:52,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:53,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2343 backedges. 1521 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2020-12-01 15:42:53,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550013344] [2020-12-01 15:42:53,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:53,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:42:53,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233657186] [2020-12-01 15:42:53,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:42:53,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:53,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:42:53,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:42:53,069 INFO L87 Difference]: Start difference. First operand 3920 states and 4220 transitions. Second operand 3 states. [2020-12-01 15:42:53,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:53,811 INFO L93 Difference]: Finished difference Result 8194 states and 8877 transitions. [2020-12-01 15:42:53,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:42:53,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 878 [2020-12-01 15:42:53,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:53,846 INFO L225 Difference]: With dead ends: 8194 [2020-12-01 15:42:53,846 INFO L226 Difference]: Without dead ends: 4454 [2020-12-01 15:42:53,851 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 [2020-12-01 15:42:53,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-12-01 15:42:53,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2020-12-01 15:42:53,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-12-01 15:42:53,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4800 transitions. [2020-12-01 15:42:53,936 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4800 transitions. Word has length 878 [2020-12-01 15:42:53,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:53,937 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4800 transitions. [2020-12-01 15:42:53,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:42:53,938 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4800 transitions. [2020-12-01 15:42:53,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2020-12-01 15:42:53,951 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:53,952 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-12-01 15:42:53,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-01 15:42:53,952 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:53,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:53,953 INFO L82 PathProgramCache]: Analyzing trace with hash -866416253, now seen corresponding path program 1 times [2020-12-01 15:42:53,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:53,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965054650] [2020-12-01 15:42:53,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:54,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1683 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2020-12-01 15:42:54,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965054650] [2020-12-01 15:42:54,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:54,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:42:54,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368198905] [2020-12-01 15:42:54,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:42:54,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:54,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:42:54,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:42:54,957 INFO L87 Difference]: Start difference. First operand 4454 states and 4800 transitions. Second operand 3 states. [2020-12-01 15:42:55,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:55,830 INFO L93 Difference]: Finished difference Result 8906 states and 9598 transitions. [2020-12-01 15:42:55,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:42:55,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 896 [2020-12-01 15:42:55,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:55,856 INFO L225 Difference]: With dead ends: 8906 [2020-12-01 15:42:55,856 INFO L226 Difference]: Without dead ends: 4632 [2020-12-01 15:42:55,862 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 [2020-12-01 15:42:55,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-12-01 15:42:55,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2020-12-01 15:42:55,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-12-01 15:42:55,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4751 transitions. [2020-12-01 15:42:55,951 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4751 transitions. Word has length 896 [2020-12-01 15:42:55,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:55,952 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4751 transitions. [2020-12-01 15:42:55,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:42:55,952 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4751 transitions. [2020-12-01 15:42:55,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 974 [2020-12-01 15:42:55,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:55,967 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-12-01 15:42:55,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-01 15:42:55,968 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:55,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:55,968 INFO L82 PathProgramCache]: Analyzing trace with hash -30959450, now seen corresponding path program 1 times [2020-12-01 15:42:55,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:55,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791931839] [2020-12-01 15:42:55,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:57,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2929 backedges. 981 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2020-12-01 15:42:57,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791931839] [2020-12-01 15:42:57,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:57,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:42:57,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778683119] [2020-12-01 15:42:57,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:42:57,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:57,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:42:57,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:42:57,254 INFO L87 Difference]: Start difference. First operand 4454 states and 4751 transitions. Second operand 3 states. [2020-12-01 15:42:57,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:57,965 INFO L93 Difference]: Finished difference Result 8728 states and 9321 transitions. [2020-12-01 15:42:57,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:42:57,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 973 [2020-12-01 15:42:57,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:57,989 INFO L225 Difference]: With dead ends: 8728 [2020-12-01 15:42:57,990 INFO L226 Difference]: Without dead ends: 4454 [2020-12-01 15:42:57,996 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 [2020-12-01 15:42:58,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-12-01 15:42:58,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2020-12-01 15:42:58,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-12-01 15:42:58,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4689 transitions. [2020-12-01 15:42:58,081 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4689 transitions. Word has length 973 [2020-12-01 15:42:58,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:58,082 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4689 transitions. [2020-12-01 15:42:58,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:42:58,082 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4689 transitions. [2020-12-01 15:42:58,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1049 [2020-12-01 15:42:58,099 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:58,100 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-12-01 15:42:58,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-01 15:42:58,100 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:58,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:58,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1448559944, now seen corresponding path program 1 times [2020-12-01 15:42:58,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:58,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777281084] [2020-12-01 15:42:58,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3560 backedges. 1091 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2020-12-01 15:42:59,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777281084] [2020-12-01 15:42:59,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:59,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:42:59,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001813705] [2020-12-01 15:42:59,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:42:59,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:59,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:42:59,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:42:59,482 INFO L87 Difference]: Start difference. First operand 4454 states and 4689 transitions. Second operand 3 states. [2020-12-01 15:43:00,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:43:00,213 INFO L93 Difference]: Finished difference Result 9084 states and 9569 transitions. [2020-12-01 15:43:00,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:43:00,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1048 [2020-12-01 15:43:00,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:43:00,225 INFO L225 Difference]: With dead ends: 9084 [2020-12-01 15:43:00,225 INFO L226 Difference]: Without dead ends: 4810 [2020-12-01 15:43:00,231 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 [2020-12-01 15:43:00,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2020-12-01 15:43:00,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2020-12-01 15:43:00,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2020-12-01 15:43:00,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5021 transitions. [2020-12-01 15:43:00,338 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5021 transitions. Word has length 1048 [2020-12-01 15:43:00,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:43:00,339 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 5021 transitions. [2020-12-01 15:43:00,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:43:00,340 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5021 transitions. [2020-12-01 15:43:00,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1097 [2020-12-01 15:43:00,358 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:43:00,359 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 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] [2020-12-01 15:43:00,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-01 15:43:00,359 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:43:00,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:00,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1729624128, now seen corresponding path program 1 times [2020-12-01 15:43:00,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:00,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062954071] [2020-12-01 15:43:00,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:01,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2746 proven. 72 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2020-12-01 15:43:01,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062954071] [2020-12-01 15:43:01,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112312506] [2020-12-01 15:43:01,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:43:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:02,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:43:02,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:43:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2459 proven. 0 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2020-12-01 15:43:03,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:43:03,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2020-12-01 15:43:03,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067815296] [2020-12-01 15:43:03,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:43:03,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:43:03,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:43:03,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:43:03,860 INFO L87 Difference]: Start difference. First operand 4810 states and 5021 transitions. Second operand 4 states. [2020-12-01 15:43:05,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:43:05,082 INFO L93 Difference]: Finished difference Result 10686 states and 11180 transitions. [2020-12-01 15:43:05,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:43:05,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1096 [2020-12-01 15:43:05,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:43:05,097 INFO L225 Difference]: With dead ends: 10686 [2020-12-01 15:43:05,097 INFO L226 Difference]: Without dead ends: 6056 [2020-12-01 15:43:05,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1100 GetRequests, 1095 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:43:05,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2020-12-01 15:43:05,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5344. [2020-12-01 15:43:05,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5344 states. [2020-12-01 15:43:05,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5577 transitions. [2020-12-01 15:43:05,218 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5577 transitions. Word has length 1096 [2020-12-01 15:43:05,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:43:05,220 INFO L481 AbstractCegarLoop]: Abstraction has 5344 states and 5577 transitions. [2020-12-01 15:43:05,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:43:05,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5577 transitions. [2020-12-01 15:43:05,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2020-12-01 15:43:05,256 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:43:05,257 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-12-01 15:43:05,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-01 15:43:05,479 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:43:05,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:05,480 INFO L82 PathProgramCache]: Analyzing trace with hash -153848726, now seen corresponding path program 1 times [2020-12-01 15:43:05,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:05,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824330459] [2020-12-01 15:43:05,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 5871 backedges. 3038 proven. 0 refuted. 0 times theorem prover too weak. 2833 trivial. 0 not checked. [2020-12-01 15:43:07,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824330459] [2020-12-01 15:43:07,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:43:07,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:43:07,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116439344] [2020-12-01 15:43:07,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:43:07,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:43:07,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:43:07,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:43:07,356 INFO L87 Difference]: Start difference. First operand 5344 states and 5577 transitions. Second operand 3 states. [2020-12-01 15:43:07,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:43:07,954 INFO L93 Difference]: Finished difference Result 10864 states and 11349 transitions. [2020-12-01 15:43:07,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:43:07,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1336 [2020-12-01 15:43:07,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:43:07,969 INFO L225 Difference]: With dead ends: 10864 [2020-12-01 15:43:07,969 INFO L226 Difference]: Without dead ends: 5700 [2020-12-01 15:43:07,975 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 [2020-12-01 15:43:07,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2020-12-01 15:43:08,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5344. [2020-12-01 15:43:08,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5344 states. [2020-12-01 15:43:08,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5567 transitions. [2020-12-01 15:43:08,064 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5567 transitions. Word has length 1336 [2020-12-01 15:43:08,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:43:08,065 INFO L481 AbstractCegarLoop]: Abstraction has 5344 states and 5567 transitions. [2020-12-01 15:43:08,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:43:08,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5567 transitions. [2020-12-01 15:43:08,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1634 [2020-12-01 15:43:08,099 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:43:08,101 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:43:08,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-01 15:43:08,101 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:43:08,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:08,102 INFO L82 PathProgramCache]: Analyzing trace with hash 862325082, now seen corresponding path program 1 times [2020-12-01 15:43:08,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:08,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339863366] [2020-12-01 15:43:08,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:12,442 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 4297 proven. 588 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2020-12-01 15:43:12,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339863366] [2020-12-01 15:43:12,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451724857] [2020-12-01 15:43:12,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:43:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:12,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1998 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:43:12,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:43:14,512 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:43:14,664 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-01 15:43:14,716 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:43:14,726 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:43:14,735 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-01 15:43:14,766 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:43:14,771 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-01 15:43:14,788 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-01 15:43:14,864 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 15:43:14,868 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 15:43:14,963 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-01 15:43:15,078 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:43:15,083 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:43:15,085 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-01 15:43:15,099 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:43:15,106 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-01 15:43:15,115 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-01 15:43:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 3486 proven. 438 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2020-12-01 15:43:17,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:43:17,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2020-12-01 15:43:17,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967961548] [2020-12-01 15:43:17,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-01 15:43:17,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:43:17,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-01 15:43:17,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-12-01 15:43:17,780 INFO L87 Difference]: Start difference. First operand 5344 states and 5567 transitions. Second operand 11 states. [2020-12-01 15:43:27,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:43:27,040 INFO L93 Difference]: Finished difference Result 13373 states and 13953 transitions. [2020-12-01 15:43:27,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-01 15:43:27,041 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1633 [2020-12-01 15:43:27,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:43:27,056 INFO L225 Difference]: With dead ends: 13373 [2020-12-01 15:43:27,057 INFO L226 Difference]: Without dead ends: 8192 [2020-12-01 15:43:27,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1659 GetRequests, 1640 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2020-12-01 15:43:27,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8192 states. [2020-12-01 15:43:27,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8192 to 6590. [2020-12-01 15:43:27,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6590 states. [2020-12-01 15:43:27,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 6826 transitions. [2020-12-01 15:43:27,209 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 6826 transitions. Word has length 1633 [2020-12-01 15:43:27,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:43:27,211 INFO L481 AbstractCegarLoop]: Abstraction has 6590 states and 6826 transitions. [2020-12-01 15:43:27,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-01 15:43:27,212 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 6826 transitions. [2020-12-01 15:43:27,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1807 [2020-12-01 15:43:27,274 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:43:27,276 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:43:27,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:43:27,501 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:43:27,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:27,502 INFO L82 PathProgramCache]: Analyzing trace with hash -415038957, now seen corresponding path program 1 times [2020-12-01 15:43:27,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:27,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042655490] [2020-12-01 15:43:27,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:31,820 INFO L134 CoverageAnalysis]: Checked inductivity of 10109 backedges. 3302 proven. 1045 refuted. 0 times theorem prover too weak. 5762 trivial. 0 not checked. [2020-12-01 15:43:31,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042655490] [2020-12-01 15:43:31,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370776823] [2020-12-01 15:43:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:43:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:32,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 2198 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:43:32,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:43:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 10109 backedges. 4347 proven. 0 refuted. 0 times theorem prover too weak. 5762 trivial. 0 not checked. [2020-12-01 15:43:35,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:43:35,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-01 15:43:35,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021371378] [2020-12-01 15:43:35,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:43:35,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:43:35,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:43:35,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:43:35,912 INFO L87 Difference]: Start difference. First operand 6590 states and 6826 transitions. Second operand 3 states. [2020-12-01 15:43:36,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:43:36,651 INFO L93 Difference]: Finished difference Result 14602 states and 15099 transitions. [2020-12-01 15:43:36,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:43:36,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1806 [2020-12-01 15:43:36,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:43:36,662 INFO L225 Difference]: With dead ends: 14602 [2020-12-01 15:43:36,662 INFO L226 Difference]: Without dead ends: 4454 [2020-12-01 15:43:36,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1809 GetRequests, 1805 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:43:36,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-12-01 15:43:36,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4276. [2020-12-01 15:43:36,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-12-01 15:43:36,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4349 transitions. [2020-12-01 15:43:36,734 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4349 transitions. Word has length 1806 [2020-12-01 15:43:36,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:43:36,736 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4349 transitions. [2020-12-01 15:43:36,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:43:36,736 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4349 transitions. [2020-12-01 15:43:36,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1878 [2020-12-01 15:43:36,775 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:43:36,777 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:43:37,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:43:37,005 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:43:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:37,006 INFO L82 PathProgramCache]: Analyzing trace with hash -707835083, now seen corresponding path program 1 times [2020-12-01 15:43:37,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:37,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986020479] [2020-12-01 15:43:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:40,258 INFO L134 CoverageAnalysis]: Checked inductivity of 11531 backedges. 4599 proven. 121 refuted. 0 times theorem prover too weak. 6811 trivial. 0 not checked. [2020-12-01 15:43:40,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986020479] [2020-12-01 15:43:40,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989093136] [2020-12-01 15:43:40,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:43:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:40,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 2288 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:43:40,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:43:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 11531 backedges. 6920 proven. 0 refuted. 0 times theorem prover too weak. 4611 trivial. 0 not checked. [2020-12-01 15:43:44,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:43:44,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 7 [2020-12-01 15:43:44,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243459326] [2020-12-01 15:43:44,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:43:44,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:43:44,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:43:44,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:43:44,995 INFO L87 Difference]: Start difference. First operand 4276 states and 4349 transitions. Second operand 6 states. [2020-12-01 15:43:46,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:43:46,887 INFO L93 Difference]: Finished difference Result 10152 states and 10358 transitions. [2020-12-01 15:43:46,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:43:46,888 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1877 [2020-12-01 15:43:46,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:43:46,898 INFO L225 Difference]: With dead ends: 10152 [2020-12-01 15:43:46,898 INFO L226 Difference]: Without dead ends: 5700 [2020-12-01 15:43:46,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1880 GetRequests, 1875 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:43:46,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2020-12-01 15:43:46,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4988. [2020-12-01 15:43:46,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4988 states. [2020-12-01 15:43:46,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5060 transitions. [2020-12-01 15:43:46,979 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5060 transitions. Word has length 1877 [2020-12-01 15:43:46,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:43:46,981 INFO L481 AbstractCegarLoop]: Abstraction has 4988 states and 5060 transitions. [2020-12-01 15:43:46,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:43:46,981 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5060 transitions. [2020-12-01 15:43:47,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2128 [2020-12-01 15:43:47,029 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:43:47,030 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 12, 12, 12, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 7, 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, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:43:47,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:43:47,249 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:43:47,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:47,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1889162223, now seen corresponding path program 1 times [2020-12-01 15:43:47,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:47,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562079097] [2020-12-01 15:43:47,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:55,792 INFO L134 CoverageAnalysis]: Checked inductivity of 14633 backedges. 10201 proven. 103 refuted. 0 times theorem prover too weak. 4329 trivial. 0 not checked. [2020-12-01 15:43:55,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562079097] [2020-12-01 15:43:55,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414809058] [2020-12-01 15:43:55,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:43:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:56,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 2584 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:43:56,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:44:01,903 INFO L134 CoverageAnalysis]: Checked inductivity of 14633 backedges. 9451 proven. 0 refuted. 0 times theorem prover too weak. 5182 trivial. 0 not checked. [2020-12-01 15:44:01,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:44:01,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-01 15:44:01,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792509289] [2020-12-01 15:44:01,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:44:01,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:44:01,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:44:01,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:44:01,908 INFO L87 Difference]: Start difference. First operand 4988 states and 5060 transitions. Second operand 3 states. [2020-12-01 15:44:02,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:44:02,522 INFO L93 Difference]: Finished difference Result 8728 states and 8847 transitions. [2020-12-01 15:44:02,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:44:02,523 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2127 [2020-12-01 15:44:02,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:44:02,529 INFO L225 Difference]: With dead ends: 8728 [2020-12-01 15:44:02,529 INFO L226 Difference]: Without dead ends: 4098 [2020-12-01 15:44:02,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2131 GetRequests, 2126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:44:02,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-12-01 15:44:02,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2020-12-01 15:44:02,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-12-01 15:44:02,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3778 transitions. [2020-12-01 15:44:02,569 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3778 transitions. Word has length 2127 [2020-12-01 15:44:02,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:44:02,570 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3778 transitions. [2020-12-01 15:44:02,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:44:02,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3778 transitions. [2020-12-01 15:44:02,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2348 [2020-12-01 15:44:02,655 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:44:02,656 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 14, 14, 14, 13, 13, 13, 13, 12, 11, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 7, 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, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:44:02,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-12-01 15:44:02,857 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:44:02,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:44:02,858 INFO L82 PathProgramCache]: Analyzing trace with hash 776693447, now seen corresponding path program 1 times [2020-12-01 15:44:02,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:44:02,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646169631] [2020-12-01 15:44:02,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:44:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:44:07,276 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 4239 proven. 0 refuted. 0 times theorem prover too weak. 13152 trivial. 0 not checked. [2020-12-01 15:44:07,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646169631] [2020-12-01 15:44:07,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:44:07,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:44:07,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467589815] [2020-12-01 15:44:07,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:44:07,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:44:07,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:44:07,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:44:07,280 INFO L87 Difference]: Start difference. First operand 3742 states and 3778 transitions. Second operand 3 states. [2020-12-01 15:44:07,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:44:07,876 INFO L93 Difference]: Finished difference Result 4810 states and 4863 transitions. [2020-12-01 15:44:07,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:44:07,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2347 [2020-12-01 15:44:07,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:44:07,879 INFO L225 Difference]: With dead ends: 4810 [2020-12-01 15:44:07,879 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:44:07,881 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 [2020-12-01 15:44:07,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:44:07,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:44:07,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:44:07,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:44:07,882 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2347 [2020-12-01 15:44:07,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:44:07,882 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:44:07,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:44:07,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:44:07,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:44:07,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-01 15:44:07,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:44:08,140 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 148 [2020-12-01 15:44:08,317 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 148 [2020-12-01 15:44:09,992 WARN L197 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 139 DAG size of output: 89 [2020-12-01 15:44:11,437 WARN L197 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 139 DAG size of output: 89 [2020-12-01 15:44:11,441 INFO L262 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-01 15:44:11,441 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-01 15:44:11,442 INFO L262 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-01 15:44:11,442 INFO L262 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-01 15:44:11,442 INFO L262 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-01 15:44:11,442 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,442 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,442 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,442 INFO L262 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-01 15:44:11,442 INFO L262 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-01 15:44:11,442 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-01 15:44:11,442 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-01 15:44:11,442 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-01 15:44:11,442 INFO L262 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-01 15:44:11,443 INFO L262 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-01 15:44:11,443 INFO L262 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-01 15:44:11,443 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,443 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,443 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,443 INFO L262 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-01 15:44:11,443 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-01 15:44:11,443 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-01 15:44:11,443 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-01 15:44:11,444 INFO L262 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-01 15:44:11,444 INFO L262 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-01 15:44:11,444 INFO L262 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-01 15:44:11,444 INFO L262 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-01 15:44:11,444 INFO L262 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-01 15:44:11,444 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,444 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,444 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,444 INFO L262 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-01 15:44:11,444 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-01 15:44:11,445 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-01 15:44:11,445 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-01 15:44:11,445 INFO L262 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-01 15:44:11,445 INFO L262 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-01 15:44:11,445 INFO L262 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-01 15:44:11,445 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,446 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,446 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,446 INFO L262 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-01 15:44:11,446 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-01 15:44:11,446 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-01 15:44:11,446 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-01 15:44:11,447 INFO L262 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-01 15:44:11,447 INFO L262 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-01 15:44:11,447 INFO L262 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-01 15:44:11,447 INFO L262 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-01 15:44:11,447 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,447 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,448 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,448 INFO L262 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-01 15:44:11,448 INFO L262 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-01 15:44:11,448 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-01 15:44:11,448 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-01 15:44:11,448 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-01 15:44:11,449 INFO L262 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-01 15:44:11,449 INFO L262 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-01 15:44:11,449 INFO L262 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-01 15:44:11,449 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,449 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,449 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,450 INFO L262 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-01 15:44:11,450 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-01 15:44:11,450 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-01 15:44:11,450 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-01 15:44:11,450 INFO L262 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-01 15:44:11,450 INFO L262 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-01 15:44:11,451 INFO L262 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-01 15:44:11,451 INFO L262 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-01 15:44:11,451 INFO L262 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-01 15:44:11,451 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,451 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,451 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,452 INFO L262 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-01 15:44:11,452 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-01 15:44:11,452 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-01 15:44:11,452 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-01 15:44:11,452 INFO L262 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-01 15:44:11,452 INFO L262 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-01 15:44:11,452 INFO L262 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-01 15:44:11,453 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:44:11,453 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,453 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,453 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,453 INFO L262 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-01 15:44:11,453 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-01 15:44:11,454 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-01 15:44:11,454 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-01 15:44:11,454 INFO L262 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-01 15:44:11,454 INFO L262 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-01 15:44:11,454 INFO L262 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-01 15:44:11,454 INFO L262 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-01 15:44:11,455 INFO L262 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-01 15:44:11,455 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,455 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,455 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,455 INFO L262 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-01 15:44:11,455 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-01 15:44:11,455 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-01 15:44:11,456 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-01 15:44:11,456 INFO L262 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-01 15:44:11,456 INFO L262 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-01 15:44:11,456 INFO L262 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-01 15:44:11,456 INFO L262 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-01 15:44:11,456 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,457 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,457 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,457 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-01 15:44:11,457 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-01 15:44:11,457 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-01 15:44:11,457 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:44:11,458 INFO L262 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-01 15:44:11,458 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 15:44:11,458 INFO L262 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-01 15:44:11,458 INFO L262 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-01 15:44:11,458 INFO L262 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-01 15:44:11,458 INFO L262 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-01 15:44:11,459 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,459 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,459 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,459 INFO L262 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-01 15:44:11,459 INFO L262 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-01 15:44:11,459 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-01 15:44:11,460 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-01 15:44:11,460 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-01 15:44:11,460 INFO L262 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-01 15:44:11,460 INFO L262 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-01 15:44:11,460 INFO L262 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-01 15:44:11,460 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,460 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,461 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,461 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-01 15:44:11,461 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-01 15:44:11,461 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-01 15:44:11,461 INFO L262 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-01 15:44:11,461 INFO L262 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-01 15:44:11,462 INFO L262 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-01 15:44:11,462 INFO L262 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-01 15:44:11,462 INFO L262 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-01 15:44:11,462 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,462 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,462 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,462 INFO L262 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-01 15:44:11,463 INFO L262 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-01 15:44:11,463 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-01 15:44:11,463 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-01 15:44:11,463 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-01 15:44:11,463 INFO L262 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-01 15:44:11,463 INFO L262 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-01 15:44:11,464 INFO L262 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-01 15:44:11,464 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,464 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,464 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,464 INFO L262 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-01 15:44:11,464 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-01 15:44:11,465 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-01 15:44:11,465 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-01 15:44:11,465 INFO L262 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-01 15:44:11,465 INFO L262 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-01 15:44:11,465 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 15:44:11,466 INFO L262 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-01 15:44:11,466 INFO L262 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-01 15:44:11,466 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,466 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,466 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,466 INFO L262 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-01 15:44:11,466 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-01 15:44:11,467 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-01 15:44:11,467 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-01 15:44:11,467 INFO L262 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-01 15:44:11,467 INFO L262 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-01 15:44:11,467 INFO L262 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-01 15:44:11,467 INFO L262 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-01 15:44:11,468 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,468 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,468 INFO L262 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-01 15:44:11,468 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-01 15:44:11,468 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-01 15:44:11,468 INFO L262 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-01 15:44:11,468 INFO L262 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-01 15:44:11,469 INFO L262 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-01 15:44:11,469 INFO L262 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-01 15:44:11,469 INFO L262 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-01 15:44:11,469 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,469 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,469 INFO L262 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-01 15:44:11,470 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:44:11,470 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-01 15:44:11,470 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-01 15:44:11,470 INFO L262 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-01 15:44:11,470 INFO L262 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-01 15:44:11,470 INFO L262 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-01 15:44:11,470 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,471 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,471 INFO L258 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse15 (+ ~a12~0 43))) (let ((.cse2 (< 0 .cse15)) (.cse3 (<= ~a12~0 10)) (.cse10 (<= 82 ~a12~0)) (.cse5 (<= 9 ~a15~0)) (.cse9 (<= 10 ~a21~0)) (.cse11 (<= ~a15~0 7)) (.cse14 (not (= 7 ~a15~0))) (.cse7 (< 18 ~a12~0)) (.cse8 (<= ~a12~0 71)) (.cse12 (<= .cse15 0)) (.cse4 (<= 8 ~a21~0)) (.cse6 (<= ~a21~0 8)) (.cse0 (= ~a24~0 1)) (.cse1 (<= ~a15~0 8)) (.cse13 (<= ~a21~0 6))) (or (and (<= (+ ~a12~0 (div (+ (* ~a12~0 (- 1)) (- 546123)) (- 9)) 450689) 0) .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse0 .cse5 .cse6) (and (<= ~a21~0 7) .cse2 .cse3 .cse0 .cse1) (and .cse4 .cse0 .cse7 .cse8 .cse6) (and .cse3 .cse0 .cse9) (and .cse10 .cse4 .cse0 (<= ~a12~0 73282) .cse6) (and (<= ~a12~0 95433) .cse0 .cse5 (< 95380 ~a12~0)) (and .cse11 .cse12 .cse13) (and .cse10 (<= 7 ~a21~0) .cse0 .cse5) (and .cse4 .cse0 .cse1 (<= ~a21~0 9) .cse7 (<= ~a12~0 76)) (and (< 80 ~a12~0) .cse0 .cse9) (and (<= ~a24~0 1) .cse12 .cse1 .cse13) (and .cse11 .cse4 .cse0) (and (<= (+ ~a12~0 49) 0) .cse0 .cse1 .cse14) (and (<= 9 ~a21~0) (<= ~a12~0 11) .cse0 .cse1) (and .cse11 .cse0 .cse13) (and .cse11 .cse0 .cse14 .cse7 .cse8) (and .cse12 .cse4 .cse0 .cse1) (and .cse4 .cse0 (<= (+ ~a12~0 526767) 0) .cse6) (and .cse0 (<= 286349 ~a12~0) .cse1 .cse13)))) [2020-12-01 15:44:11,472 INFO L262 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-01 15:44:11,472 INFO L262 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-01 15:44:11,472 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-01 15:44:11,472 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-01 15:44:11,472 INFO L262 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-01 15:44:11,473 INFO L262 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-01 15:44:11,473 INFO L262 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-01 15:44:11,473 INFO L262 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-01 15:44:11,473 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,473 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,473 INFO L265 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-01 15:44:11,474 INFO L262 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-01 15:44:11,474 INFO L262 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-01 15:44:11,474 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-01 15:44:11,474 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-01 15:44:11,474 INFO L262 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-01 15:44:11,474 INFO L262 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-01 15:44:11,474 INFO L262 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-01 15:44:11,474 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,474 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,474 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:44:11,475 INFO L262 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-01 15:44:11,475 INFO L262 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-01 15:44:11,475 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-01 15:44:11,475 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-01 15:44:11,475 INFO L262 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-01 15:44:11,475 INFO L262 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-01 15:44:11,475 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,475 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,475 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-01 15:44:11,475 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,475 INFO L262 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L258 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse15 (+ ~a12~0 43))) (let ((.cse2 (< 0 .cse15)) (.cse3 (<= ~a12~0 10)) (.cse10 (<= 82 ~a12~0)) (.cse5 (<= 9 ~a15~0)) (.cse9 (<= 10 ~a21~0)) (.cse11 (<= ~a15~0 7)) (.cse14 (not (= 7 ~a15~0))) (.cse7 (< 18 ~a12~0)) (.cse8 (<= ~a12~0 71)) (.cse12 (<= .cse15 0)) (.cse4 (<= 8 ~a21~0)) (.cse6 (<= ~a21~0 8)) (.cse0 (= ~a24~0 1)) (.cse1 (<= ~a15~0 8)) (.cse13 (<= ~a21~0 6))) (or (and (<= (+ ~a12~0 (div (+ (* ~a12~0 (- 1)) (- 546123)) (- 9)) 450689) 0) .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse0 .cse5 .cse6) (and (<= ~a21~0 7) .cse2 .cse3 .cse0 .cse1) (and .cse4 .cse0 .cse7 .cse8 .cse6) (and .cse3 .cse0 .cse9) (and .cse10 .cse4 .cse0 (<= ~a12~0 73282) .cse6) (and (<= ~a12~0 95433) .cse0 .cse5 (< 95380 ~a12~0)) (and .cse11 .cse12 .cse13) (and .cse10 (<= 7 ~a21~0) .cse0 .cse5) (and .cse4 .cse0 .cse1 (<= ~a21~0 9) .cse7 (<= ~a12~0 76)) (and (< 80 ~a12~0) .cse0 .cse9) (and (<= ~a24~0 1) .cse12 .cse1 .cse13) (and .cse11 .cse4 .cse0) (and (<= (+ ~a12~0 49) 0) .cse0 .cse1 .cse14) (and (<= 9 ~a21~0) (<= ~a12~0 11) .cse0 .cse1) (and .cse11 .cse0 .cse13) (and .cse11 .cse0 .cse14 .cse7 .cse8) (and .cse12 .cse4 .cse0 .cse1) (and .cse4 .cse0 (<= (+ ~a12~0 526767) 0) .cse6) (and .cse0 (<= 286349 ~a12~0) .cse1 .cse13)))) [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-01 15:44:11,476 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-01 15:44:11,477 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-01 15:44:11,477 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-01 15:44:11,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:44:11 BoogieIcfgContainer [2020-12-01 15:44:11,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:44:11,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:44:11,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:44:11,546 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:44:11,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:42:22" (3/4) ... [2020-12-01 15:44:11,551 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:44:11,607 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-01 15:44:11,610 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:44:11,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:44:11,614 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:44:11,834 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_39128527-b6b7-46b1-b639-443fe8498297/bin/uautomizer/witness.graphml [2020-12-01 15:44:11,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:44:11,836 INFO L168 Benchmark]: Toolchain (without parser) took 113044.10 ms. Allocated memory was 111.1 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 74.4 MB in the beginning and 2.3 GB in the end (delta: -2.3 GB). Peak memory consumption was 559.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:44:11,837 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 75.5 MB. Free memory was 33.5 MB in the beginning and 33.5 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:44:11,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1000.25 ms. Allocated memory is still 111.1 MB. Free memory was 74.2 MB in the beginning and 64.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:44:11,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.43 ms. Allocated memory is still 111.1 MB. Free memory was 64.1 MB in the beginning and 54.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:44:11,839 INFO L168 Benchmark]: Boogie Preprocessor took 134.95 ms. Allocated memory is still 111.1 MB. Free memory was 54.8 MB in the beginning and 48.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:44:11,839 INFO L168 Benchmark]: RCFGBuilder took 2185.43 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 48.0 MB in the beginning and 51.6 MB in the end (delta: -3.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:44:11,840 INFO L168 Benchmark]: TraceAbstraction took 109289.35 ms. Allocated memory was 138.4 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 51.6 MB in the beginning and 2.3 GB in the end (delta: -2.3 GB). Peak memory consumption was 492.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:44:11,840 INFO L168 Benchmark]: Witness Printer took 289.18 ms. Allocated memory is still 2.9 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:44:11,843 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 75.5 MB. Free memory was 33.5 MB in the beginning and 33.5 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1000.25 ms. Allocated memory is still 111.1 MB. Free memory was 74.2 MB in the beginning and 64.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 137.43 ms. Allocated memory is still 111.1 MB. Free memory was 64.1 MB in the beginning and 54.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 134.95 ms. Allocated memory is still 111.1 MB. Free memory was 54.8 MB in the beginning and 48.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2185.43 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 48.0 MB in the beginning and 51.6 MB in the end (delta: -3.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 109289.35 ms. Allocated memory was 138.4 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 51.6 MB in the beginning and 2.3 GB in the end (delta: -2.3 GB). Peak memory consumption was 492.2 MB. Max. memory is 16.1 GB. * Witness Printer took 289.18 ms. Allocated memory is still 2.9 GB. Free memory was 2.3 GB in the beginning and 2.3 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: ((((((((((((((((((((a12 + (a12 * -1 + -546123) / -9 + 450689 <= 0 && a24 == 1) && a15 <= 8) || (((((0 < a12 + 43 && a12 <= 10) && 8 <= a21) && a24 == 1) && 9 <= a15) && a21 <= 8)) || ((((a21 <= 7 && 0 < a12 + 43) && a12 <= 10) && a24 == 1) && a15 <= 8)) || ((((8 <= a21 && a24 == 1) && 18 < a12) && a12 <= 71) && a21 <= 8)) || ((a12 <= 10 && a24 == 1) && 10 <= a21)) || ((((82 <= a12 && 8 <= a21) && a24 == 1) && a12 <= 73282) && a21 <= 8)) || (((a12 <= 95433 && a24 == 1) && 9 <= a15) && 95380 < a12)) || ((a15 <= 7 && a12 + 43 <= 0) && a21 <= 6)) || (((82 <= a12 && 7 <= a21) && a24 == 1) && 9 <= a15)) || (((((8 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && 18 < a12) && a12 <= 76)) || ((80 < a12 && a24 == 1) && 10 <= a21)) || (((a24 <= 1 && a12 + 43 <= 0) && a15 <= 8) && a21 <= 6)) || ((a15 <= 7 && 8 <= a21) && a24 == 1)) || (((a12 + 49 <= 0 && a24 == 1) && a15 <= 8) && !(7 == a15))) || (((9 <= a21 && a12 <= 11) && a24 == 1) && a15 <= 8)) || ((a15 <= 7 && a24 == 1) && a21 <= 6)) || ((((a15 <= 7 && a24 == 1) && !(7 == a15)) && 18 < a12) && a12 <= 71)) || (((a12 + 43 <= 0 && 8 <= a21) && a24 == 1) && a15 <= 8)) || (((8 <= a21 && a24 == 1) && a12 + 526767 <= 0) && a21 <= 8)) || (((a24 == 1 && 286349 <= a12) && a15 <= 8) && a21 <= 6) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a12 + (a12 * -1 + -546123) / -9 + 450689 <= 0 && a24 == 1) && a15 <= 8) || (((((0 < a12 + 43 && a12 <= 10) && 8 <= a21) && a24 == 1) && 9 <= a15) && a21 <= 8)) || ((((a21 <= 7 && 0 < a12 + 43) && a12 <= 10) && a24 == 1) && a15 <= 8)) || ((((8 <= a21 && a24 == 1) && 18 < a12) && a12 <= 71) && a21 <= 8)) || ((a12 <= 10 && a24 == 1) && 10 <= a21)) || ((((82 <= a12 && 8 <= a21) && a24 == 1) && a12 <= 73282) && a21 <= 8)) || (((a12 <= 95433 && a24 == 1) && 9 <= a15) && 95380 < a12)) || ((a15 <= 7 && a12 + 43 <= 0) && a21 <= 6)) || (((82 <= a12 && 7 <= a21) && a24 == 1) && 9 <= a15)) || (((((8 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && 18 < a12) && a12 <= 76)) || ((80 < a12 && a24 == 1) && 10 <= a21)) || (((a24 <= 1 && a12 + 43 <= 0) && a15 <= 8) && a21 <= 6)) || ((a15 <= 7 && 8 <= a21) && a24 == 1)) || (((a12 + 49 <= 0 && a24 == 1) && a15 <= 8) && !(7 == a15))) || (((9 <= a21 && a12 <= 11) && a24 == 1) && a15 <= 8)) || ((a15 <= 7 && a24 == 1) && a21 <= 6)) || ((((a15 <= 7 && a24 == 1) && !(7 == a15)) && 18 < a12) && a12 <= 71)) || (((a12 + 43 <= 0 && 8 <= a21) && a24 == 1) && a15 <= 8)) || (((8 <= a21 && a24 == 1) && a12 + 526767 <= 0) && a21 <= 8)) || (((a24 == 1 && 286349 <= a12) && a15 <= 8) && a21 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 105.5s, OverallIterations: 23, TraceHistogramMax: 19, AutomataDifference: 31.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3114 SDtfs, 3124 SDslu, 280 SDs, 0 SdLazy, 22086 SolverSat, 1877 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11883 GetRequests, 11803 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6590occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 23 MinimizatonAttempts, 5696 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 96 NumberOfFragments, 585 HoareAnnotationTreeSize, 3 FomulaSimplifications, 8332 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2430 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 4.7s SatisfiabilityAnalysisTime, 34.1s InterpolantComputationTime, 33378 NumberOfCodeBlocks, 33378 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 33344 ConstructedInterpolants, 0 QuantifiedInterpolants, 108935841 SizeOfPredicates, 1 NumberOfNonLiveVariables, 14674 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 34 InterpolantComputations, 21 PerfectInterpolantSequences, 143715/146935 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...