./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.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_15e95f4d-a99a-4724-86e2-47adb49ad5dc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/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 88858f97a31c3235966ebf494d20d53d69d426d8 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:56:20,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:20,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:21,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:21,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:21,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:21,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:21,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:21,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:21,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:21,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:21,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:21,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:21,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:21,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:21,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:21,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:21,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:21,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:21,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:21,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:21,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:21,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:21,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:21,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:21,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:21,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:21,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:21,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:21,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:21,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:21,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:21,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:21,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:21,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:21,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:21,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:21,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:21,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:21,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:21,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:21,126 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:56:21,175 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:21,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:21,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:21,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:21,178 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:21,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:21,178 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:21,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:21,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:21,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:21,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:21,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:21,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:21,181 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:21,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:21,181 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:21,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:21,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:21,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:21,182 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:21,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:21,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:21,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:21,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:21,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:21,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:21,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:21,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:21,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:21,184 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_15e95f4d-a99a-4724-86e2-47adb49ad5dc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88858f97a31c3235966ebf494d20d53d69d426d8 [2020-11-28 02:56:21,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:21,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:21,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:21,543 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:21,544 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:21,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c [2020-11-28 02:56:21,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/bin/uautomizer/data/9c80664a5/b167e36062ad4045aa4e1ae7bc0a4432/FLAG5134556a6 [2020-11-28 02:56:22,057 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:22,057 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c [2020-11-28 02:56:22,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/bin/uautomizer/data/9c80664a5/b167e36062ad4045aa4e1ae7bc0a4432/FLAG5134556a6 [2020-11-28 02:56:22,080 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/bin/uautomizer/data/9c80664a5/b167e36062ad4045aa4e1ae7bc0a4432 [2020-11-28 02:56:22,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:22,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:22,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:22,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:22,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:22,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e5d0bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22, skipping insertion in model container [2020-11-28 02:56:22,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:22,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:22,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:22,334 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:22,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:22,380 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:22,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22 WrapperNode [2020-11-28 02:56:22,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:22,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:22,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:22,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:22,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:22,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:22,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:22,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:22,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:22,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:22,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:22,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:22,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/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 [2020-11-28 02:56:22,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:56:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:22,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:22,894 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:22,895 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-11-28 02:56:22,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:22 BoogieIcfgContainer [2020-11-28 02:56:22,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:22,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:22,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:22,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:22,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:22" (1/3) ... [2020-11-28 02:56:22,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f608f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:22, skipping insertion in model container [2020-11-28 02:56:22,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (2/3) ... [2020-11-28 02:56:22,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f608f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:22, skipping insertion in model container [2020-11-28 02:56:22,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:22" (3/3) ... [2020-11-28 02:56:22,921 INFO L111 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound2.c [2020-11-28 02:56:22,941 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:22,947 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 02:56:22,957 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 02:56:22,982 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:22,982 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:22,982 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:22,983 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:22,983 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:22,983 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:22,983 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:22,983 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:23,010 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-28 02:56:23,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 02:56:23,016 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:23,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:23,018 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:23,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:23,025 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-11-28 02:56:23,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:23,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696377882] [2020-11-28 02:56:23,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:23,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:23,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696377882] [2020-11-28 02:56:23,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:23,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:23,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864028848] [2020-11-28 02:56:23,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 02:56:23,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:23,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:56:23,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:56:23,217 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-11-28 02:56:23,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:23,233 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions. [2020-11-28 02:56:23,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:56:23,234 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-28 02:56:23,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:23,243 INFO L225 Difference]: With dead ends: 43 [2020-11-28 02:56:23,243 INFO L226 Difference]: Without dead ends: 19 [2020-11-28 02:56:23,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:56:23,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-28 02:56:23,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-28 02:56:23,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-28 02:56:23,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-11-28 02:56:23,279 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2020-11-28 02:56:23,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:23,280 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-11-28 02:56:23,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 02:56:23,280 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-11-28 02:56:23,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 02:56:23,280 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:23,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:23,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:56:23,281 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:23,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:23,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-11-28 02:56:23,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:23,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590195116] [2020-11-28 02:56:23,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:23,314 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:23,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1135602216] [2020-11-28 02:56:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/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 [2020-11-28 02:56:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:23,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 02:56:23,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:23,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:23,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590195116] [2020-11-28 02:56:23,521 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:23,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135602216] [2020-11-28 02:56:23,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:23,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:56:23,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798356439] [2020-11-28 02:56:23,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:56:23,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:23,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:56:23,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:56:23,525 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 4 states. [2020-11-28 02:56:23,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:23,636 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-11-28 02:56:23,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:56:23,637 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-28 02:56:23,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:23,638 INFO L225 Difference]: With dead ends: 32 [2020-11-28 02:56:23,638 INFO L226 Difference]: Without dead ends: 30 [2020-11-28 02:56:23,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:23,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-28 02:56:23,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 21. [2020-11-28 02:56:23,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 02:56:23,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-28 02:56:23,645 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2020-11-28 02:56:23,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:23,646 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-28 02:56:23,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:56:23,646 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-28 02:56:23,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 02:56:23,647 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:23,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:23,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 02:56:23,848 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:23,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:23,849 INFO L82 PathProgramCache]: Analyzing trace with hash -936571807, now seen corresponding path program 1 times [2020-11-28 02:56:23,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:23,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425935551] [2020-11-28 02:56:23,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:23,899 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:23,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2143915117] [2020-11-28 02:56:23,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/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 [2020-11-28 02:56:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:23,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 02:56:23,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:24,038 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 02:56:24,041 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:24,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425935551] [2020-11-28 02:56:24,071 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:24,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143915117] [2020-11-28 02:56:24,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:24,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:56:24,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697050470] [2020-11-28 02:56:24,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:24,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:24,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:24,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:24,074 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 5 states. [2020-11-28 02:56:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:24,206 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2020-11-28 02:56:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:56:24,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-28 02:56:24,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:24,208 INFO L225 Difference]: With dead ends: 28 [2020-11-28 02:56:24,208 INFO L226 Difference]: Without dead ends: 24 [2020-11-28 02:56:24,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 02:56:24,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-28 02:56:24,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2020-11-28 02:56:24,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 02:56:24,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-11-28 02:56:24,213 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 14 [2020-11-28 02:56:24,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:24,214 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-28 02:56:24,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:24,214 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-28 02:56:24,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 02:56:24,215 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:24,215 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:24,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:24,416 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:24,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:24,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1947257600, now seen corresponding path program 1 times [2020-11-28 02:56:24,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:24,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270362333] [2020-11-28 02:56:24,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:24,431 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:24,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1287126545] [2020-11-28 02:56:24,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/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 [2020-11-28 02:56:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:24,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 35 conjunts are in the unsatisfiable core [2020-11-28 02:56:24,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:24,518 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 02:56:24,519 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:24,564 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 02:56:24,564 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:24,707 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 02:56:24,707 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:25,015 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-28 02:56:25,030 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-28 02:56:25,645 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 26 [2020-11-28 02:56:25,655 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 7, 1] term [2020-11-28 02:56:25,655 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:25,666 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:25,674 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:25,679 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:25,683 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:25,689 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:25,693 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:25,700 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:25,705 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:25,714 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:25,721 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:25,726 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:25,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270362333] [2020-11-28 02:56:25,787 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:25,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287126545] [2020-11-28 02:56:25,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:56:25,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-11-28 02:56:25,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172396173] [2020-11-28 02:56:25,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-28 02:56:25,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:25,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-28 02:56:25,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-11-28 02:56:25,790 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 13 states. [2020-11-28 02:56:26,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:26,626 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-11-28 02:56:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 02:56:26,627 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 16 [2020-11-28 02:56:26,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:26,627 INFO L225 Difference]: With dead ends: 37 [2020-11-28 02:56:26,627 INFO L226 Difference]: Without dead ends: 31 [2020-11-28 02:56:26,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2020-11-28 02:56:26,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-28 02:56:26,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2020-11-28 02:56:26,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 02:56:26,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-11-28 02:56:26,635 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 16 [2020-11-28 02:56:26,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:26,635 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-11-28 02:56:26,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-28 02:56:26,635 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-11-28 02:56:26,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 02:56:26,647 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:26,647 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:26,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:26,872 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:26,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:26,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1949104642, now seen corresponding path program 1 times [2020-11-28 02:56:26,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:26,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844364121] [2020-11-28 02:56:26,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:26,894 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:26,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1766347454] [2020-11-28 02:56:26,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/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 [2020-11-28 02:56:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:26,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 34 conjunts are in the unsatisfiable core [2020-11-28 02:56:26,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:27,016 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 02:56:27,016 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:27,085 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 02:56:27,085 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:27,442 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:27,447 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:27,455 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:27,465 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:27,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:27,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844364121] [2020-11-28 02:56:27,610 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:27,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766347454] [2020-11-28 02:56:27,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:56:27,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-11-28 02:56:27,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526654197] [2020-11-28 02:56:27,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 02:56:27,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:27,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 02:56:27,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-11-28 02:56:27,612 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 12 states. [2020-11-28 02:56:27,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:27,989 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2020-11-28 02:56:27,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 02:56:27,989 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-11-28 02:56:27,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:27,990 INFO L225 Difference]: With dead ends: 45 [2020-11-28 02:56:27,990 INFO L226 Difference]: Without dead ends: 34 [2020-11-28 02:56:27,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-11-28 02:56:27,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-28 02:56:27,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-11-28 02:56:27,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-28 02:56:27,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2020-11-28 02:56:27,997 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 16 [2020-11-28 02:56:27,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:27,997 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2020-11-28 02:56:27,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 02:56:27,997 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2020-11-28 02:56:27,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 02:56:27,998 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:27,998 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:28,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:28,220 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:28,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:28,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1355346681, now seen corresponding path program 2 times [2020-11-28 02:56:28,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:28,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078321078] [2020-11-28 02:56:28,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:28,233 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:28,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124331872] [2020-11-28 02:56:28,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/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 [2020-11-28 02:56:28,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 02:56:28,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 02:56:28,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-28 02:56:28,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:28,320 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 02:56:28,320 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:28,359 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 02:56:28,359 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:28,404 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:28,408 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-28 02:56:28,426 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-28 02:56:28,593 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:28,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078321078] [2020-11-28 02:56:28,594 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:28,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124331872] [2020-11-28 02:56:28,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:56:28,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-28 02:56:28,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354110642] [2020-11-28 02:56:28,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 02:56:28,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:28,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 02:56:28,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-11-28 02:56:28,596 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 10 states. [2020-11-28 02:56:28,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:28,950 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2020-11-28 02:56:28,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 02:56:28,951 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-11-28 02:56:28,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:28,952 INFO L225 Difference]: With dead ends: 42 [2020-11-28 02:56:28,952 INFO L226 Difference]: Without dead ends: 27 [2020-11-28 02:56:28,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-11-28 02:56:28,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-28 02:56:28,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-28 02:56:28,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 02:56:28,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2020-11-28 02:56:28,957 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 21 [2020-11-28 02:56:28,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:28,957 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2020-11-28 02:56:28,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 02:56:28,958 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-11-28 02:56:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 02:56:28,958 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:28,958 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:29,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-28 02:56:29,160 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:29,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:29,161 INFO L82 PathProgramCache]: Analyzing trace with hash 962319671, now seen corresponding path program 1 times [2020-11-28 02:56:29,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:29,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877431931] [2020-11-28 02:56:29,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:29,173 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:29,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785925011] [2020-11-28 02:56:29,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/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 [2020-11-28 02:56:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:29,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 32 conjunts are in the unsatisfiable core [2020-11-28 02:56:29,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:29,251 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 02:56:29,251 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:29,651 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:29,663 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:29,694 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:29,721 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:29,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877431931] [2020-11-28 02:56:29,815 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:29,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785925011] [2020-11-28 02:56:29,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:56:29,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-28 02:56:29,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383899242] [2020-11-28 02:56:29,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 02:56:29,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:29,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 02:56:29,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-11-28 02:56:29,817 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 11 states. [2020-11-28 02:56:30,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:30,220 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-11-28 02:56:30,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 02:56:30,225 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-11-28 02:56:30,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:30,225 INFO L225 Difference]: With dead ends: 27 [2020-11-28 02:56:30,225 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 02:56:30,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-11-28 02:56:30,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 02:56:30,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 02:56:30,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 02:56:30,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 02:56:30,227 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-28 02:56:30,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:30,227 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:56:30,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 02:56:30,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:56:30,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 02:56:30,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:30,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 02:56:30,828 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2020-11-28 02:56:31,216 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2020-11-28 02:56:31,219 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-11-28 02:56:31,219 INFO L277 CegarLoopResult]: At program point L48(lines 20 49) the Hoare annotation is: true [2020-11-28 02:56:31,219 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 02:56:31,219 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 02:56:31,220 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 02:56:31,220 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-11-28 02:56:31,220 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 02:56:31,220 INFO L274 CegarLoopResult]: For program point L13(lines 13 16) no Hoare annotation was computed. [2020-11-28 02:56:31,220 INFO L270 CegarLoopResult]: At program point L13-1(lines 36 37) the Hoare annotation is: (let ((.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse0 (<= ULTIMATE.start_main_~a~0 2)) (.cse2 (<= 0 ULTIMATE.start_main_~a~0)) (.cse6 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse4 (= ULTIMATE.start_main_~z~0 0)) (.cse5 (<= 1 ULTIMATE.start_main_~b~0))) (or (and (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~a~0 2)) .cse0 (<= ULTIMATE.start_main_~y~0 1) .cse1 .cse2 .cse3 .cse4 (= (div ULTIMATE.start_main_~b~0 2) ULTIMATE.start_main_~y~0) (not (= (mod ULTIMATE.start_main_~b~0 2) 1)) .cse5) (and (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~z~0 2)) (<= ULTIMATE.start_main_~b~0 2) .cse0 (<= 0 ULTIMATE.start_main_~y~0) (= (+ (* (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) 2) ULTIMATE.start_main_~z~0) .cse6) .cse1 (exists ((aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 Int) (aux_div_v_ULTIMATE.start_main_~y~0_17_37 Int)) (let ((.cse7 (* 2 aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48))) (let ((.cse8 (+ .cse7 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_17_37)))) (and (< .cse7 2) (<= ULTIMATE.start_main_~y~0 aux_div_v_ULTIMATE.start_main_~y~0_17_37) (<= 0 .cse7) (<= 0 .cse8) (<= .cse8 1))))) .cse2 .cse3 .cse5) (and .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2 (= (+ ULTIMATE.start_main_~z~0 (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)) .cse6) .cse3 .cse4 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse5 (<= ULTIMATE.start_main_~y~0 2)))) [2020-11-28 02:56:31,220 INFO L274 CegarLoopResult]: For program point L13-2(lines 13 16) no Hoare annotation was computed. [2020-11-28 02:56:31,220 INFO L277 CegarLoopResult]: At program point L13-3(lines 12 18) the Hoare annotation is: true [2020-11-28 02:56:31,221 INFO L274 CegarLoopResult]: For program point L9(lines 9 11) no Hoare annotation was computed. [2020-11-28 02:56:31,221 INFO L274 CegarLoopResult]: For program point L9-1(lines 9 11) no Hoare annotation was computed. [2020-11-28 02:56:31,221 INFO L274 CegarLoopResult]: For program point L9-2(lines 9 11) no Hoare annotation was computed. [2020-11-28 02:56:31,221 INFO L270 CegarLoopResult]: At program point L34-2(lines 34 45) the Hoare annotation is: (let ((.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse0 (<= ULTIMATE.start_main_~a~0 2)) (.cse2 (<= 0 ULTIMATE.start_main_~a~0)) (.cse6 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse4 (= ULTIMATE.start_main_~z~0 0)) (.cse5 (<= 1 ULTIMATE.start_main_~b~0))) (or (and (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~a~0 2)) .cse0 (<= ULTIMATE.start_main_~y~0 1) .cse1 .cse2 .cse3 .cse4 (= (div ULTIMATE.start_main_~b~0 2) ULTIMATE.start_main_~y~0) (not (= (mod ULTIMATE.start_main_~b~0 2) 1)) .cse5) (and (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~z~0 2)) (<= ULTIMATE.start_main_~b~0 2) .cse0 (<= 0 ULTIMATE.start_main_~y~0) (= (+ (* (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) 2) ULTIMATE.start_main_~z~0) .cse6) .cse1 (exists ((aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 Int) (aux_div_v_ULTIMATE.start_main_~y~0_17_37 Int)) (let ((.cse7 (* 2 aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48))) (let ((.cse8 (+ .cse7 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_17_37)))) (and (< .cse7 2) (<= ULTIMATE.start_main_~y~0 aux_div_v_ULTIMATE.start_main_~y~0_17_37) (<= 0 .cse7) (<= 0 .cse8) (<= .cse8 1))))) .cse2 .cse3 .cse5) (and .cse0 .cse2 (= (+ ULTIMATE.start_main_~z~0 (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)) .cse6) .cse3 .cse4 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse5 (<= ULTIMATE.start_main_~y~0 2)))) [2020-11-28 02:56:31,221 INFO L274 CegarLoopResult]: For program point L34-3(lines 34 45) no Hoare annotation was computed. [2020-11-28 02:56:31,221 INFO L274 CegarLoopResult]: For program point L14(lines 14 15) no Hoare annotation was computed. [2020-11-28 02:56:31,221 INFO L274 CegarLoopResult]: For program point L14-1(lines 14 15) no Hoare annotation was computed. [2020-11-28 02:56:31,221 INFO L274 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-11-28 02:56:31,222 INFO L274 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-11-28 02:56:31,222 INFO L274 CegarLoopResult]: For program point L39(lines 39 42) no Hoare annotation was computed. [2020-11-28 02:56:31,222 INFO L274 CegarLoopResult]: For program point L10-4(line 10) no Hoare annotation was computed. [2020-11-28 02:56:31,222 INFO L274 CegarLoopResult]: For program point L39-2(lines 39 42) no Hoare annotation was computed. [2020-11-28 02:56:31,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,244 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,258 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,259 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,259 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,259 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,259 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,259 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,259 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,273 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,273 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,273 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,274 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,274 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,274 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,274 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,275 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,275 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,275 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:31 BoogieIcfgContainer [2020-11-28 02:56:31,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:31,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:31,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:31,279 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:31,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:22" (3/4) ... [2020-11-28 02:56:31,283 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 02:56:31,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 02:56:31,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 02:56:31,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:56:31,308 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:56:31,335 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((x == a * 2 && a <= 2) && y <= 1) && 1 <= cond) && 0 <= a) && cond == 1) && z == 0) && b / 2 == y) && !(b % 2 == 1)) && 1 <= b) || (((((((((x == z * 2 && b <= 2) && a <= 2) && 0 <= y) && z * y * 2 + z == a * b) && 1 <= cond) && (\exists aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 : int, aux_div_v_ULTIMATE.start_main_~y~0_17_37 : int :: (((2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 < 2 && y <= aux_div_v_ULTIMATE.start_main_~y~0_17_37) && 0 <= 2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48) && 0 <= 2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 + 2 * aux_div_v_ULTIMATE.start_main_~y~0_17_37) && 2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 + 2 * aux_div_v_ULTIMATE.start_main_~y~0_17_37 <= 1)) && 0 <= a) && cond == 1) && 1 <= b)) || (((((((a <= 2 && 0 <= a) && z + x * y == a * b) && cond == 1) && z == 0) && b == y) && 1 <= b) && y <= 2) [2020-11-28 02:56:31,335 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((x == a * 2 && a <= 2) && y <= 1) && 1 <= cond) && 0 <= a) && cond == 1) && z == 0) && b / 2 == y) && !(b % 2 == 1)) && 1 <= b) || (((((((((x == z * 2 && b <= 2) && a <= 2) && 0 <= y) && z * y * 2 + z == a * b) && 1 <= cond) && (\exists aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 : int, aux_div_v_ULTIMATE.start_main_~y~0_17_37 : int :: (((2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 < 2 && y <= aux_div_v_ULTIMATE.start_main_~y~0_17_37) && 0 <= 2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48) && 0 <= 2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 + 2 * aux_div_v_ULTIMATE.start_main_~y~0_17_37) && 2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 + 2 * aux_div_v_ULTIMATE.start_main_~y~0_17_37 <= 1)) && 0 <= a) && cond == 1) && 1 <= b)) || ((((((((a <= 2 && 1 == cond) && 0 <= a) && z + x * y == a * b) && cond == 1) && z == 0) && b == y) && 1 <= b) && y <= 2) [2020-11-28 02:56:31,353 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_15e95f4d-a99a-4724-86e2-47adb49ad5dc/bin/uautomizer/witness.graphml [2020-11-28 02:56:31,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:31,354 INFO L168 Benchmark]: Toolchain (without parser) took 9269.58 ms. Allocated memory was 92.3 MB in the beginning and 174.1 MB in the end (delta: 81.8 MB). Free memory was 59.6 MB in the beginning and 73.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 67.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:31,355 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 75.5 MB. Free memory was 55.5 MB in the beginning and 55.4 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:31,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.61 ms. Allocated memory is still 92.3 MB. Free memory was 59.4 MB in the beginning and 69.9 MB in the end (delta: -10.5 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:31,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.89 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 68.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:31,356 INFO L168 Benchmark]: Boogie Preprocessor took 20.76 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 67.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:31,357 INFO L168 Benchmark]: RCFGBuilder took 462.12 ms. Allocated memory is still 92.3 MB. Free memory was 67.2 MB in the beginning and 54.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:31,357 INFO L168 Benchmark]: TraceAbstraction took 8365.35 ms. Allocated memory was 92.3 MB in the beginning and 174.1 MB in the end (delta: 81.8 MB). Free memory was 53.7 MB in the beginning and 76.7 MB in the end (delta: -23.1 MB). Peak memory consumption was 59.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:31,358 INFO L168 Benchmark]: Witness Printer took 73.77 ms. Allocated memory is still 174.1 MB. Free memory was 76.7 MB in the beginning and 73.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:31,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 75.5 MB. Free memory was 55.5 MB in the beginning and 55.4 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.61 ms. Allocated memory is still 92.3 MB. Free memory was 59.4 MB in the beginning and 69.9 MB in the end (delta: -10.5 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.89 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 68.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.76 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 67.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 462.12 ms. Allocated memory is still 92.3 MB. Free memory was 67.2 MB in the beginning and 54.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8365.35 ms. Allocated memory was 92.3 MB in the beginning and 174.1 MB in the end (delta: 81.8 MB). Free memory was 53.7 MB in the beginning and 76.7 MB in the end (delta: -23.1 MB). Peak memory consumption was 59.5 MB. Max. memory is 16.1 GB. * Witness Printer took 73.77 ms. Allocated memory is still 174.1 MB. Free memory was 76.7 MB in the beginning and 73.6 MB 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant [2020-11-28 02:56:31,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,375 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,377 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] Derived loop invariant: ((((((((((x == a * 2 && a <= 2) && y <= 1) && 1 <= cond) && 0 <= a) && cond == 1) && z == 0) && b / 2 == y) && !(b % 2 == 1)) && 1 <= b) || (((((((((x == z * 2 && b <= 2) && a <= 2) && 0 <= y) && z * y * 2 + z == a * b) && 1 <= cond) && (\exists aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 : int, aux_div_v_ULTIMATE.start_main_~y~0_17_37 : int :: (((2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 < 2 && y <= aux_div_v_ULTIMATE.start_main_~y~0_17_37) && 0 <= 2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48) && 0 <= 2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 + 2 * aux_div_v_ULTIMATE.start_main_~y~0_17_37) && 2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 + 2 * aux_div_v_ULTIMATE.start_main_~y~0_17_37 <= 1)) && 0 <= a) && cond == 1) && 1 <= b)) || (((((((a <= 2 && 0 <= a) && z + x * y == a * b) && cond == 1) && z == 0) && b == y) && 1 <= b) && y <= 2) - InvariantResult [Line: 36]: Loop Invariant [2020-11-28 02:56:31,378 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,378 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,378 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,378 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,378 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,378 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,379 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,379 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] [2020-11-28 02:56:31,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48,QUANTIFIED] [2020-11-28 02:56:31,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_17_37,QUANTIFIED] Derived loop invariant: ((((((((((x == a * 2 && a <= 2) && y <= 1) && 1 <= cond) && 0 <= a) && cond == 1) && z == 0) && b / 2 == y) && !(b % 2 == 1)) && 1 <= b) || (((((((((x == z * 2 && b <= 2) && a <= 2) && 0 <= y) && z * y * 2 + z == a * b) && 1 <= cond) && (\exists aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 : int, aux_div_v_ULTIMATE.start_main_~y~0_17_37 : int :: (((2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 < 2 && y <= aux_div_v_ULTIMATE.start_main_~y~0_17_37) && 0 <= 2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48) && 0 <= 2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 + 2 * aux_div_v_ULTIMATE.start_main_~y~0_17_37) && 2 * aux_div_aux_mod_v_ULTIMATE.start_main_~y~0_17_37_48 + 2 * aux_div_v_ULTIMATE.start_main_~y~0_17_37 <= 1)) && 0 <= a) && cond == 1) && 1 <= b)) || ((((((((a <= 2 && 1 == cond) && 0 <= a) && z + x * y == a * b) && cond == 1) && z == 0) && b == y) && 1 <= b) && y <= 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 84 SDtfs, 229 SDslu, 170 SDs, 0 SdLazy, 495 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 17 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 287 HoareAnnotationTreeSize, 4 FomulaSimplifications, 147 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 249 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 103 ConstructedInterpolants, 4 QuantifiedInterpolants, 21090 SizeOfPredicates, 51 NumberOfNonLiveVariables, 495 ConjunctsInSsa, 134 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 5/22 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...