./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Fibonacci03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/Fibonacci03.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/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 c18b98479d83d3111a28d9798b2d068fc51f15fb ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:27:49,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:27:49,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:27:49,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:27:49,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:27:49,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:27:49,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:27:49,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:27:49,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:27:49,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:27:49,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:27:49,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:27:49,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:27:49,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:27:49,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:27:49,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:27:49,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:27:49,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:27:49,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:27:49,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:27:49,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:27:49,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:27:49,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:27:49,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:27:49,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:27:49,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:27:49,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:27:49,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:27:49,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:27:49,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:27:49,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:27:49,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:27:49,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:27:49,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:27:49,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:27:49,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:27:49,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:27:49,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:27:49,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:27:49,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:27:49,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:27:49,226 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:27:49,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:27:49,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:27:49,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:27:49,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:27:49,273 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:27:49,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:27:49,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:27:49,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:27:49,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:27:49,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:27:49,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:27:49,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:27:49,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:27:49,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:27:49,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:27:49,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:27:49,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:27:49,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:27:49,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:27:49,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:27:49,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:27:49,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:27:49,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:27:49,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:27:49,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:27:49,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:27:49,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:27:49,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:27:49,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:27:49,279 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_4342d4e8-03a6-471e-9871-15bc71f86713/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c18b98479d83d3111a28d9798b2d068fc51f15fb [2020-11-29 23:27:49,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:27:49,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:27:49,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:27:49,623 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:27:49,626 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:27:49,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/../../sv-benchmarks/c/recursive/Fibonacci03.c [2020-11-29 23:27:49,715 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/data/6fa467512/b51097f1639c4eed9e28e96ffcde033e/FLAG2b0f22633 [2020-11-29 23:27:50,215 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:27:50,216 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/sv-benchmarks/c/recursive/Fibonacci03.c [2020-11-29 23:27:50,226 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/data/6fa467512/b51097f1639c4eed9e28e96ffcde033e/FLAG2b0f22633 [2020-11-29 23:27:50,580 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/data/6fa467512/b51097f1639c4eed9e28e96ffcde033e [2020-11-29 23:27:50,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:27:50,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:27:50,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:27:50,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:27:50,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:27:50,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:27:50" (1/1) ... [2020-11-29 23:27:50,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64dfccca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50, skipping insertion in model container [2020-11-29 23:27:50,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:27:50" (1/1) ... [2020-11-29 23:27:50,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:27:50,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:27:50,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:27:50,793 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:27:50,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:27:50,832 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:27:50,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50 WrapperNode [2020-11-29 23:27:50,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:27:50,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:27:50,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:27:50,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:27:50,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50" (1/1) ... [2020-11-29 23:27:50,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50" (1/1) ... [2020-11-29 23:27:50,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:27:50,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:27:50,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:27:50,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:27:50,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50" (1/1) ... [2020-11-29 23:27:50,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50" (1/1) ... [2020-11-29 23:27:50,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50" (1/1) ... [2020-11-29 23:27:50,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50" (1/1) ... [2020-11-29 23:27:50,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50" (1/1) ... [2020-11-29 23:27:50,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50" (1/1) ... [2020-11-29 23:27:50,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50" (1/1) ... [2020-11-29 23:27:50,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:27:50,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:27:50,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:27:50,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:27:50,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:27:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-11-29 23:27:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-11-29 23:27:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:27:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:27:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:27:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:27:51,287 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:27:51,287 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 23:27:51,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:27:51 BoogieIcfgContainer [2020-11-29 23:27:51,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:27:51,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:27:51,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:27:51,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:27:51,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:27:50" (1/3) ... [2020-11-29 23:27:51,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e0939a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:27:51, skipping insertion in model container [2020-11-29 23:27:51,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:50" (2/3) ... [2020-11-29 23:27:51,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e0939a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:27:51, skipping insertion in model container [2020-11-29 23:27:51,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:27:51" (3/3) ... [2020-11-29 23:27:51,326 INFO L111 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2020-11-29 23:27:51,337 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:27:51,350 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:27:51,364 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:27:51,402 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:27:51,405 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:27:51,405 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:27:51,405 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:27:51,405 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:27:51,405 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:27:51,406 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:27:51,407 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:27:51,435 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-29 23:27:51,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:27:51,440 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:51,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:51,442 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:51,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:51,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1130427778, now seen corresponding path program 1 times [2020-11-29 23:27:51,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:51,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741737485] [2020-11-29 23:27:51,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:51,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:27:51,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741737485] [2020-11-29 23:27:51,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:27:51,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:27:51,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454571921] [2020-11-29 23:27:51,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:27:51,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:51,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:27:51,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:27:51,810 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2020-11-29 23:27:51,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:51,959 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2020-11-29 23:27:51,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:27:51,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-29 23:27:51,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:51,975 INFO L225 Difference]: With dead ends: 33 [2020-11-29 23:27:51,975 INFO L226 Difference]: Without dead ends: 19 [2020-11-29 23:27:51,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:27:51,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-29 23:27:52,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-29 23:27:52,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-29 23:27:52,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2020-11-29 23:27:52,030 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 11 [2020-11-29 23:27:52,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:52,031 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-11-29 23:27:52,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:27:52,032 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-11-29 23:27:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:27:52,034 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:52,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:52,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:27:52,036 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:52,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:52,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1373030608, now seen corresponding path program 1 times [2020-11-29 23:27:52,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:52,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681989703] [2020-11-29 23:27:52,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:52,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:52,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:27:52,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681989703] [2020-11-29 23:27:52,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:27:52,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:27:52,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345586387] [2020-11-29 23:27:52,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:27:52,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:52,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:27:52,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:27:52,148 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 5 states. [2020-11-29 23:27:52,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:52,233 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2020-11-29 23:27:52,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:27:52,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-29 23:27:52,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:52,236 INFO L225 Difference]: With dead ends: 25 [2020-11-29 23:27:52,236 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 23:27:52,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:27:52,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 23:27:52,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2020-11-29 23:27:52,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-29 23:27:52,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2020-11-29 23:27:52,243 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2020-11-29 23:27:52,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:52,244 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-11-29 23:27:52,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:27:52,244 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-11-29 23:27:52,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 23:27:52,245 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:52,245 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:52,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:27:52,246 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:52,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:52,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1177011487, now seen corresponding path program 1 times [2020-11-29 23:27:52,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:52,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75187387] [2020-11-29 23:27:52,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:52,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:52,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:52,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-29 23:27:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:52,416 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 23:27:52,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75187387] [2020-11-29 23:27:52,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147147844] [2020-11-29 23:27:52,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:27:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:52,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:27:52,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:27:52,613 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 23:27:52,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:27:52,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-11-29 23:27:52,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699982257] [2020-11-29 23:27:52,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 23:27:52,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:52,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:27:52,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:27:52,616 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 9 states. [2020-11-29 23:27:52,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:52,812 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2020-11-29 23:27:52,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:27:52,813 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-11-29 23:27:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:52,814 INFO L225 Difference]: With dead ends: 36 [2020-11-29 23:27:52,814 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 23:27:52,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:27:52,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 23:27:52,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-29 23:27:52,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-29 23:27:52,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-11-29 23:27:52,824 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 24 [2020-11-29 23:27:52,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:52,824 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-11-29 23:27:52,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 23:27:52,825 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-11-29 23:27:52,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 23:27:52,829 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:52,829 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:53,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-29 23:27:53,049 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:53,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:53,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1178789999, now seen corresponding path program 1 times [2020-11-29 23:27:53,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:53,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033142702] [2020-11-29 23:27:53,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:53,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:53,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:53,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:53,186 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 23:27:53,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033142702] [2020-11-29 23:27:53,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959641236] [2020-11-29 23:27:53,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:27:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:53,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:27:53,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:27:53,287 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 23:27:53,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:27:53,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-11-29 23:27:53,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413868719] [2020-11-29 23:27:53,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 23:27:53,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:53,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 23:27:53,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:27:53,289 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 7 states. [2020-11-29 23:27:53,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:53,442 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-11-29 23:27:53,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:27:53,443 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-11-29 23:27:53,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:53,445 INFO L225 Difference]: With dead ends: 39 [2020-11-29 23:27:53,445 INFO L226 Difference]: Without dead ends: 35 [2020-11-29 23:27:53,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:27:53,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-29 23:27:53,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-29 23:27:53,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-29 23:27:53,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-11-29 23:27:53,456 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 25 [2020-11-29 23:27:53,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:53,457 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-11-29 23:27:53,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 23:27:53,457 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-11-29 23:27:53,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-29 23:27:53,459 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:53,459 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:53,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:27:53,673 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:53,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:53,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1759764718, now seen corresponding path program 2 times [2020-11-29 23:27:53,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:53,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267978486] [2020-11-29 23:27:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:53,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:53,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:53,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:53,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:53,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:27:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:53,849 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-11-29 23:27:53,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267978486] [2020-11-29 23:27:53,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722856446] [2020-11-29 23:27:53,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:27:53,913 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 23:27:53,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:27:53,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:27:53,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:27:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-11-29 23:27:54,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:27:54,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2020-11-29 23:27:54,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932628010] [2020-11-29 23:27:54,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 23:27:54,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:54,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 23:27:54,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-29 23:27:54,042 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 12 states. [2020-11-29 23:27:54,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:54,386 INFO L93 Difference]: Finished difference Result 69 states and 104 transitions. [2020-11-29 23:27:54,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 23:27:54,386 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-11-29 23:27:54,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:54,388 INFO L225 Difference]: With dead ends: 69 [2020-11-29 23:27:54,388 INFO L226 Difference]: Without dead ends: 36 [2020-11-29 23:27:54,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2020-11-29 23:27:54,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-29 23:27:54,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-29 23:27:54,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-29 23:27:54,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-11-29 23:27:54,397 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 38 [2020-11-29 23:27:54,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:54,398 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-11-29 23:27:54,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 23:27:54,398 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-11-29 23:27:54,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-11-29 23:27:54,401 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:54,402 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:54,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:27:54,632 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:54,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:54,633 INFO L82 PathProgramCache]: Analyzing trace with hash 516620815, now seen corresponding path program 3 times [2020-11-29 23:27:54,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:54,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141900979] [2020-11-29 23:27:54,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:54,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:54,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:54,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:54,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:54,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:54,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:27:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:54,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:27:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:54,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:54,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:54,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:54,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:27:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:54,971 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 22 proven. 127 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-11-29 23:27:54,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141900979] [2020-11-29 23:27:54,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106957] [2020-11-29 23:27:54,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:27:55,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2020-11-29 23:27:55,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:27:55,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:27:55,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:27:55,146 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 89 proven. 32 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-11-29 23:27:55,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:27:55,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2020-11-29 23:27:55,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442183213] [2020-11-29 23:27:55,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 23:27:55,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:55,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 23:27:55,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-11-29 23:27:55,153 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 11 states. [2020-11-29 23:27:55,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:55,456 INFO L93 Difference]: Finished difference Result 94 states and 140 transitions. [2020-11-29 23:27:55,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-29 23:27:55,456 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-11-29 23:27:55,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:55,460 INFO L225 Difference]: With dead ends: 94 [2020-11-29 23:27:55,460 INFO L226 Difference]: Without dead ends: 88 [2020-11-29 23:27:55,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-11-29 23:27:55,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-11-29 23:27:55,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2020-11-29 23:27:55,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-29 23:27:55,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 122 transitions. [2020-11-29 23:27:55,485 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 122 transitions. Word has length 80 [2020-11-29 23:27:55,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:55,486 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 122 transitions. [2020-11-29 23:27:55,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 23:27:55,486 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 122 transitions. [2020-11-29 23:27:55,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-11-29 23:27:55,492 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:55,492 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 23, 14, 14, 14, 14, 14, 14, 14, 9, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:55,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:27:55,717 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:55,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:55,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1693198702, now seen corresponding path program 4 times [2020-11-29 23:27:55,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:55,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158324142] [2020-11-29 23:27:55,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:55,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:55,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:27:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:27:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:27:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:27:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-29 23:27:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:27:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:27:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:27:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2241 backedges. 422 proven. 660 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked. [2020-11-29 23:27:56,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158324142] [2020-11-29 23:27:56,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902869219] [2020-11-29 23:27:56,535 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:27:56,667 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-29 23:27:56,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:27:56,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 22 conjunts are in the unsatisfiable core [2020-11-29 23:27:56,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:27:56,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2241 backedges. 453 proven. 734 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2020-11-29 23:27:56,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:27:56,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2020-11-29 23:27:56,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289152812] [2020-11-29 23:27:56,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-29 23:27:56,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:56,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-29 23:27:56,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2020-11-29 23:27:56,881 INFO L87 Difference]: Start difference. First operand 82 states and 122 transitions. Second operand 18 states. [2020-11-29 23:27:57,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:57,702 INFO L93 Difference]: Finished difference Result 166 states and 297 transitions. [2020-11-29 23:27:57,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-29 23:27:57,703 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 202 [2020-11-29 23:27:57,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:57,706 INFO L225 Difference]: With dead ends: 166 [2020-11-29 23:27:57,706 INFO L226 Difference]: Without dead ends: 86 [2020-11-29 23:27:57,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2020-11-29 23:27:57,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-11-29 23:27:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 79. [2020-11-29 23:27:57,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-29 23:27:57,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 104 transitions. [2020-11-29 23:27:57,739 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 104 transitions. Word has length 202 [2020-11-29 23:27:57,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:57,740 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 104 transitions. [2020-11-29 23:27:57,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-29 23:27:57,741 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2020-11-29 23:27:57,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-11-29 23:27:57,749 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:57,749 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 33, 20, 20, 20, 20, 20, 20, 20, 13, 8, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:57,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-29 23:27:57,977 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:57,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:57,977 INFO L82 PathProgramCache]: Analyzing trace with hash -528287288, now seen corresponding path program 5 times [2020-11-29 23:27:57,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:57,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411517765] [2020-11-29 23:27:57,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:27:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:27:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:27:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:27:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-29 23:27:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:27:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:27:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-11-29 23:27:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:27:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:27:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:27:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:27:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:27:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:27:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 189 proven. 1130 refuted. 0 times theorem prover too weak. 3249 trivial. 0 not checked. [2020-11-29 23:27:58,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411517765] [2020-11-29 23:27:58,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875097685] [2020-11-29 23:27:58,846 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:27:59,029 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 41 check-sat command(s) [2020-11-29 23:27:59,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:27:59,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 23:27:59,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:27:59,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 801 proven. 327 refuted. 0 times theorem prover too weak. 3440 trivial. 0 not checked. [2020-11-29 23:27:59,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:27:59,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 13 [2020-11-29 23:27:59,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751861124] [2020-11-29 23:27:59,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-29 23:27:59,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:59,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-29 23:27:59,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:27:59,238 INFO L87 Difference]: Start difference. First operand 79 states and 104 transitions. Second operand 13 states. [2020-11-29 23:27:59,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:59,678 INFO L93 Difference]: Finished difference Result 181 states and 285 transitions. [2020-11-29 23:27:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-29 23:27:59,680 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 284 [2020-11-29 23:27:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:59,685 INFO L225 Difference]: With dead ends: 181 [2020-11-29 23:27:59,689 INFO L226 Difference]: Without dead ends: 103 [2020-11-29 23:27:59,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 363 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-11-29 23:27:59,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-11-29 23:27:59,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 95. [2020-11-29 23:27:59,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-29 23:27:59,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2020-11-29 23:27:59,728 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 284 [2020-11-29 23:27:59,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:59,730 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2020-11-29 23:27:59,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-29 23:27:59,730 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2020-11-29 23:27:59,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2020-11-29 23:27:59,746 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:59,747 INFO L422 BasicCegarLoop]: trace histogram [77, 77, 62, 38, 38, 38, 38, 38, 38, 38, 24, 15, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:59,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:27:59,961 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:59,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:59,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1789205782, now seen corresponding path program 6 times [2020-11-29 23:27:59,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:59,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3471992] [2020-11-29 23:27:59,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-29 23:28:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-11-29 23:28:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-11-29 23:28:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-29 23:28:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-11-29 23:28:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,993 INFO L134 CoverageAnalysis]: Checked inductivity of 16407 backedges. 2940 proven. 2962 refuted. 0 times theorem prover too weak. 10505 trivial. 0 not checked. [2020-11-29 23:28:01,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3471992] [2020-11-29 23:28:01,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684079810] [2020-11-29 23:28:01,993 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/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 [2020-11-29 23:28:02,156 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2020-11-29 23:28:02,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:28:02,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 23:28:02,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:28:02,460 INFO L134 CoverageAnalysis]: Checked inductivity of 16407 backedges. 533 proven. 2177 refuted. 0 times theorem prover too weak. 13697 trivial. 0 not checked. [2020-11-29 23:28:02,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:28:02,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11] total 21 [2020-11-29 23:28:02,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092229355] [2020-11-29 23:28:02,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-29 23:28:02,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:02,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-29 23:28:02,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2020-11-29 23:28:02,463 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand 21 states. [2020-11-29 23:28:03,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:03,723 INFO L93 Difference]: Finished difference Result 222 states and 390 transitions. [2020-11-29 23:28:03,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-11-29 23:28:03,724 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 529 [2020-11-29 23:28:03,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:03,727 INFO L225 Difference]: With dead ends: 222 [2020-11-29 23:28:03,727 INFO L226 Difference]: Without dead ends: 131 [2020-11-29 23:28:03,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=481, Invalid=1871, Unknown=0, NotChecked=0, Total=2352 [2020-11-29 23:28:03,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-29 23:28:03,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 113. [2020-11-29 23:28:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-29 23:28:03,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 161 transitions. [2020-11-29 23:28:03,747 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 161 transitions. Word has length 529 [2020-11-29 23:28:03,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:03,748 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 161 transitions. [2020-11-29 23:28:03,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-29 23:28:03,749 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 161 transitions. [2020-11-29 23:28:03,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1034 [2020-11-29 23:28:03,797 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:03,797 INFO L422 BasicCegarLoop]: trace histogram [151, 151, 122, 75, 75, 75, 75, 75, 75, 75, 47, 29, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:28:04,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:28:04,013 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:04,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:04,013 INFO L82 PathProgramCache]: Analyzing trace with hash -821876979, now seen corresponding path program 7 times [2020-11-29 23:28:04,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:04,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445024269] [2020-11-29 23:28:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:04,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-29 23:28:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-11-29 23:28:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-11-29 23:28:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-29 23:28:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-11-29 23:28:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-29 23:28:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-11-29 23:28:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-11-29 23:28:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2020-11-29 23:28:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:06,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-29 23:28:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 63781 backedges. 4264 proven. 7122 refuted. 0 times theorem prover too weak. 52395 trivial. 0 not checked. [2020-11-29 23:28:08,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445024269] [2020-11-29 23:28:08,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047974436] [2020-11-29 23:28:08,724 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/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 [2020-11-29 23:28:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:09,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 2324 conjuncts, 34 conjunts are in the unsatisfiable core [2020-11-29 23:28:09,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:28:09,968 INFO L134 CoverageAnalysis]: Checked inductivity of 63781 backedges. 4165 proven. 8809 refuted. 0 times theorem prover too weak. 50807 trivial. 0 not checked. [2020-11-29 23:28:09,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:28:09,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 23 [2020-11-29 23:28:09,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001522194] [2020-11-29 23:28:09,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-29 23:28:09,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:09,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-29 23:28:09,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2020-11-29 23:28:09,972 INFO L87 Difference]: Start difference. First operand 113 states and 161 transitions. Second operand 23 states. [2020-11-29 23:28:11,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:11,159 INFO L93 Difference]: Finished difference Result 256 states and 442 transitions. [2020-11-29 23:28:11,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-11-29 23:28:11,160 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 1033 [2020-11-29 23:28:11,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:11,164 INFO L225 Difference]: With dead ends: 256 [2020-11-29 23:28:11,165 INFO L226 Difference]: Without dead ends: 149 [2020-11-29 23:28:11,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1387 GetRequests, 1332 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=653, Invalid=2539, Unknown=0, NotChecked=0, Total=3192 [2020-11-29 23:28:11,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-11-29 23:28:11,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 127. [2020-11-29 23:28:11,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-11-29 23:28:11,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2020-11-29 23:28:11,213 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 1033 [2020-11-29 23:28:11,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:11,216 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2020-11-29 23:28:11,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-29 23:28:11,216 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2020-11-29 23:28:11,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 748 [2020-11-29 23:28:11,222 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:11,222 INFO L422 BasicCegarLoop]: trace histogram [109, 109, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:28:11,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-29 23:28:11,437 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:11,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:11,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1513590258, now seen corresponding path program 8 times [2020-11-29 23:28:11,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:11,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159521241] [2020-11-29 23:28:11,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:11,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:12,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:12,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:12,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:12,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:12,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:12,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-29 23:28:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-11-29 23:28:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-11-29 23:28:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-29 23:28:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-11-29 23:28:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:13,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-29 23:28:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-11-29 23:28:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-29 23:28:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-29 23:28:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 23:28:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-29 23:28:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:14,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-29 23:28:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:15,296 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2020-11-29 23:28:15,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159521241] [2020-11-29 23:28:15,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476354433] [2020-11-29 23:28:15,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/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 [2020-11-29 23:28:15,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 23:28:15,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:28:15,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 220 conjunts are in the unsatisfiable core [2020-11-29 23:28:15,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:28:16,832 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2020-11-29 23:28:16,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:28:16,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 36 [2020-11-29 23:28:16,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742860940] [2020-11-29 23:28:16,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-11-29 23:28:16,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:16,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-11-29 23:28:16,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=1013, Unknown=0, NotChecked=0, Total=1260 [2020-11-29 23:28:16,836 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand 36 states. [2020-11-29 23:28:17,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:17,131 INFO L93 Difference]: Finished difference Result 128 states and 184 transitions. [2020-11-29 23:28:17,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-29 23:28:17,132 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 747 [2020-11-29 23:28:17,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:17,134 INFO L225 Difference]: With dead ends: 128 [2020-11-29 23:28:17,134 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:28:17,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1186 GetRequests, 1151 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=1061, Unknown=0, NotChecked=0, Total=1332 [2020-11-29 23:28:17,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:28:17,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:28:17,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:28:17,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:28:17,137 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 747 [2020-11-29 23:28:17,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:17,137 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:28:17,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-11-29 23:28:17,137 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:28:17,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:28:17,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:28:17,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:28:18,050 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 45 [2020-11-29 23:28:18,266 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 6 [2020-11-29 23:28:18,311 INFO L274 CegarLoopResult]: For program point fibonacciFINAL(lines 16 24) no Hoare annotation was computed. [2020-11-29 23:28:18,312 INFO L277 CegarLoopResult]: At program point fibonacciENTRY(lines 16 24) the Hoare annotation is: true [2020-11-29 23:28:18,312 INFO L270 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (and (= fibonacci_~n |fibonacci_#in~n|) (<= 2 |fibonacci_#in~n|)) [2020-11-29 23:28:18,312 INFO L274 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-11-29 23:28:18,312 INFO L270 CegarLoopResult]: At program point L22-2(line 22) the Hoare annotation is: (let ((.cse0 (= fibonacci_~n |fibonacci_#in~n|)) (.cse1 (<= 1 |fibonacci_#t~ret7|))) (or (and (<= 5 |fibonacci_#in~n|) .cse0 (<= 3 |fibonacci_#t~ret7|) (<= |fibonacci_#in~n| 5)) (and (<= 5 |fibonacci_#t~ret7|) .cse0 (<= fibonacci_~n 6) (<= 6 |fibonacci_#in~n|)) (and (<= 13 |fibonacci_#t~ret7|) (<= |fibonacci_#in~n| 8) .cse0 (<= 7 fibonacci_~n)) (and .cse0 (<= 8 |fibonacci_#t~ret7|) (<= 7 |fibonacci_#in~n|) (<= |fibonacci_#in~n| 7)) (and (<= 4 |fibonacci_#in~n|) (<= 2 |fibonacci_#t~ret7|) .cse0 (<= |fibonacci_#in~n| 4)) (and (<= 8 |fibonacci_#in~n|) .cse0 (<= 21 |fibonacci_#t~ret7|)) (and (<= |fibonacci_#in~n| 2) .cse0 .cse1 (<= 2 |fibonacci_#in~n|)) (and (<= |fibonacci_#in~n| 3) .cse0 (<= 3 |fibonacci_#in~n|) .cse1))) [2020-11-29 23:28:18,312 INFO L274 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2020-11-29 23:28:18,312 INFO L274 CegarLoopResult]: For program point L22-3(line 22) no Hoare annotation was computed. [2020-11-29 23:28:18,313 INFO L274 CegarLoopResult]: For program point fibonacciEXIT(lines 16 24) no Hoare annotation was computed. [2020-11-29 23:28:18,313 INFO L274 CegarLoopResult]: For program point L17(lines 17 23) no Hoare annotation was computed. [2020-11-29 23:28:18,313 INFO L274 CegarLoopResult]: For program point L33(lines 33 37) no Hoare annotation was computed. [2020-11-29 23:28:18,313 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:28:18,313 INFO L277 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: true [2020-11-29 23:28:18,313 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:28:18,313 INFO L274 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-11-29 23:28:18,313 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:28:18,313 INFO L274 CegarLoopResult]: For program point L29(lines 29 31) no Hoare annotation was computed. [2020-11-29 23:28:18,313 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:28:18,313 INFO L277 CegarLoopResult]: At program point L27(lines 27 38) the Hoare annotation is: true [2020-11-29 23:28:18,314 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 23:28:18,314 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-11-29 23:28:18,314 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 23:28:18,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:28:18 BoogieIcfgContainer [2020-11-29 23:28:18,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:28:18,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:28:18,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:28:18,326 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:28:18,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:27:51" (3/4) ... [2020-11-29 23:28:18,329 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:28:18,336 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fibonacci [2020-11-29 23:28:18,341 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-29 23:28:18,341 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 23:28:18,341 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:28:18,342 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:28:18,394 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4342d4e8-03a6-471e-9871-15bc71f86713/bin/uautomizer/witness.graphml [2020-11-29 23:28:18,398 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:28:18,399 INFO L168 Benchmark]: Toolchain (without parser) took 27815.25 ms. Allocated memory was 86.0 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 56.8 MB in the beginning and 1.6 GB in the end (delta: -1.6 GB). Peak memory consumption was 63.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:18,402 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 43.0 MB in the beginning and 43.0 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:28:18,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.86 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 56.6 MB in the beginning and 86.7 MB in the end (delta: -30.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:18,403 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.10 ms. Allocated memory is still 109.1 MB. Free memory was 86.7 MB in the beginning and 85.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:28:18,403 INFO L168 Benchmark]: Boogie Preprocessor took 25.86 ms. Allocated memory is still 109.1 MB. Free memory was 85.5 MB in the beginning and 84.6 MB in the end (delta: 909.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:18,404 INFO L168 Benchmark]: RCFGBuilder took 382.18 ms. Allocated memory is still 109.1 MB. Free memory was 84.2 MB in the beginning and 72.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:18,404 INFO L168 Benchmark]: TraceAbstraction took 27017.39 ms. Allocated memory was 109.1 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 72.4 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 854.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:18,405 INFO L168 Benchmark]: Witness Printer took 72.10 ms. Allocated memory is still 1.7 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:18,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 43.0 MB in the beginning and 43.0 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.86 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 56.6 MB in the beginning and 86.7 MB in the end (delta: -30.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.10 ms. Allocated memory is still 109.1 MB. Free memory was 86.7 MB in the beginning and 85.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.86 ms. Allocated memory is still 109.1 MB. Free memory was 85.5 MB in the beginning and 84.6 MB in the end (delta: 909.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 382.18 ms. Allocated memory is still 109.1 MB. Free memory was 84.2 MB in the beginning and 72.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27017.39 ms. Allocated memory was 109.1 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 72.4 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 854.9 MB. Max. memory is 16.1 GB. * Witness Printer took 72.10 ms. Allocated memory is still 1.7 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 27]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.9s, OverallIterations: 11, TraceHistogramMax: 151, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 273 SDtfs, 856 SDslu, 1165 SDs, 0 SdLazy, 2186 SolverSat, 904 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4254 GetRequests, 4004 SyntacticMatches, 2 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2052 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 63 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 287 PreInvPairs, 378 NumberOfFragments, 112 HoareAnnotationTreeSize, 287 FomulaSimplifications, 776 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 5 FomulaSimplificationsInter, 2535 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 14.6s InterpolantComputationTime, 5947 NumberOfCodeBlocks, 5574 NumberOfCodeBlocksAsserted, 94 NumberOfCheckSat, 5927 ConstructedInterpolants, 0 QuantifiedInterpolants, 6253183 SizeOfPredicates, 57 NumberOfNonLiveVariables, 5971 ConjunctsInSsa, 334 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 206909/240922 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...