./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/hostid.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/hostid.i -s /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3b6e96321d82dea19b0b24b62173907aded16288 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:36:01,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:36:01,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:36:01,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:36:01,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:36:01,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:36:01,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:36:01,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:36:01,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:36:01,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:36:01,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:36:01,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:36:01,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:36:01,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:36:01,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:36:01,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:36:01,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:36:01,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:36:01,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:36:01,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:36:01,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:36:01,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:36:01,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:36:01,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:36:01,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:36:01,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:36:01,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:36:01,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:36:01,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:36:01,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:36:01,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:36:01,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:36:01,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:36:01,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:36:01,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:36:01,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:36:01,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:36:01,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:36:01,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:36:01,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:36:01,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:36:01,253 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-29 23:36:01,282 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:36:01,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:36:01,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:36:01,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:36:01,284 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:36:01,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:36:01,284 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:36:01,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:36:01,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:36:01,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:36:01,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:36:01,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:36:01,286 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 23:36:01,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:36:01,286 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:36:01,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:36:01,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:36:01,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:36:01,287 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:36:01,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:36:01,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:36:01,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:36:01,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:36:01,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:36:01,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:36:01,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:36:01,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:36:01,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:36:01,290 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_709b3d43-dddd-4df4-9a32-d6732296782d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b6e96321d82dea19b0b24b62173907aded16288 [2020-11-29 23:36:01,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:36:01,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:36:01,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:36:01,572 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:36:01,573 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:36:01,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/../../sv-benchmarks/c/busybox-1.22.0/hostid.i [2020-11-29 23:36:01,650 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/data/4378cf991/c2e2e8301ade4530927874536d31b237/FLAG61b64a583 [2020-11-29 23:36:02,330 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:36:02,331 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/sv-benchmarks/c/busybox-1.22.0/hostid.i [2020-11-29 23:36:02,364 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/data/4378cf991/c2e2e8301ade4530927874536d31b237/FLAG61b64a583 [2020-11-29 23:36:02,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/data/4378cf991/c2e2e8301ade4530927874536d31b237 [2020-11-29 23:36:02,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:36:02,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:36:02,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:36:02,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:36:02,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:36:02,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:36:02" (1/1) ... [2020-11-29 23:36:02,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e768623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:02, skipping insertion in model container [2020-11-29 23:36:02,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:36:02" (1/1) ... [2020-11-29 23:36:02,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:36:02,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:36:03,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:36:03,656 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:36:03,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:36:04,222 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:36:04,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:04 WrapperNode [2020-11-29 23:36:04,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:36:04,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:36:04,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:36:04,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:36:04,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:04" (1/1) ... [2020-11-29 23:36:04,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:04" (1/1) ... [2020-11-29 23:36:04,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:36:04,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:36:04,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:36:04,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:36:04,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:04" (1/1) ... [2020-11-29 23:36:04,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:04" (1/1) ... [2020-11-29 23:36:04,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:04" (1/1) ... [2020-11-29 23:36:04,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:04" (1/1) ... [2020-11-29 23:36:04,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:04" (1/1) ... [2020-11-29 23:36:04,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:04" (1/1) ... [2020-11-29 23:36:04,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:04" (1/1) ... [2020-11-29 23:36:04,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:36:04,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:36:04,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:36:04,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:36:04,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:36:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:36:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 23:36:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-11-29 23:36:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 23:36:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:36:04,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:36:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:36:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 23:36:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:36:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:36:05,175 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:36:05,176 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 23:36:05,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:36:05 BoogieIcfgContainer [2020-11-29 23:36:05,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:36:05,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:36:05,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:36:05,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:36:05,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:36:02" (1/3) ... [2020-11-29 23:36:05,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec71cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:36:05, skipping insertion in model container [2020-11-29 23:36:05,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:04" (2/3) ... [2020-11-29 23:36:05,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec71cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:36:05, skipping insertion in model container [2020-11-29 23:36:05,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:36:05" (3/3) ... [2020-11-29 23:36:05,201 INFO L111 eAbstractionObserver]: Analyzing ICFG hostid.i [2020-11-29 23:36:05,226 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:36:05,231 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-11-29 23:36:05,243 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-11-29 23:36:05,267 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:36:05,268 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:36:05,268 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:36:05,268 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:36:05,268 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:36:05,268 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:36:05,268 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:36:05,268 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:36:05,284 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-11-29 23:36:05,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 23:36:05,289 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:05,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 23:36:05,290 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:05,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:05,296 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-11-29 23:36:05,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:05,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219173250] [2020-11-29 23:36:05,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:05,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:05,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219173250] [2020-11-29 23:36:05,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:36:05,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:36:05,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343066889] [2020-11-29 23:36:05,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:36:05,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:05,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:36:05,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:05,784 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2020-11-29 23:36:05,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:05,837 INFO L93 Difference]: Finished difference Result 98 states and 116 transitions. [2020-11-29 23:36:05,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:36:05,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-29 23:36:05,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:05,847 INFO L225 Difference]: With dead ends: 98 [2020-11-29 23:36:05,847 INFO L226 Difference]: Without dead ends: 49 [2020-11-29 23:36:05,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:05,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-11-29 23:36:05,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-11-29 23:36:05,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-29 23:36:05,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-11-29 23:36:05,902 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 4 [2020-11-29 23:36:05,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:05,903 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-11-29 23:36:05,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:36:05,903 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-11-29 23:36:05,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 23:36:05,904 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:05,904 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-11-29 23:36:05,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:36:05,905 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:05,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:05,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2020-11-29 23:36:05,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:05,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488686362] [2020-11-29 23:36:05,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:36:06,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488686362] [2020-11-29 23:36:06,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:36:06,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:36:06,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781279438] [2020-11-29 23:36:06,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:36:06,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:06,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:36:06,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:06,013 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 3 states. [2020-11-29 23:36:06,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:06,042 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-11-29 23:36:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:36:06,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-29 23:36:06,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:06,043 INFO L225 Difference]: With dead ends: 49 [2020-11-29 23:36:06,044 INFO L226 Difference]: Without dead ends: 48 [2020-11-29 23:36:06,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:06,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-11-29 23:36:06,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-11-29 23:36:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-11-29 23:36:06,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-11-29 23:36:06,051 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 7 [2020-11-29 23:36:06,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:06,052 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-11-29 23:36:06,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:36:06,052 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-11-29 23:36:06,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 23:36:06,052 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:06,053 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2020-11-29 23:36:06,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:36:06,053 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:06,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:06,054 INFO L82 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2020-11-29 23:36:06,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:06,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635902191] [2020-11-29 23:36:06,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:06,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635902191] [2020-11-29 23:36:06,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260014914] [2020-11-29 23:36:06,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:06,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:36:06,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:06,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:36:06,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-11-29 23:36:06,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444600227] [2020-11-29 23:36:06,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:36:06,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:06,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:36:06,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:36:06,414 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 4 states. [2020-11-29 23:36:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:06,440 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-11-29 23:36:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:36:06,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-29 23:36:06,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:06,444 INFO L225 Difference]: With dead ends: 48 [2020-11-29 23:36:06,444 INFO L226 Difference]: Without dead ends: 47 [2020-11-29 23:36:06,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:36:06,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-29 23:36:06,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-11-29 23:36:06,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-29 23:36:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-11-29 23:36:06,454 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 8 [2020-11-29 23:36:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:06,456 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-11-29 23:36:06,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:36:06,456 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-11-29 23:36:06,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 23:36:06,457 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:06,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:06,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-29 23:36:06,670 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:06,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:06,671 INFO L82 PathProgramCache]: Analyzing trace with hash -334468778, now seen corresponding path program 1 times [2020-11-29 23:36:06,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:06,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331823931] [2020-11-29 23:36:06,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:06,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:06,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331823931] [2020-11-29 23:36:06,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593887512] [2020-11-29 23:36:06,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:06,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:36:06,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:06,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:06,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:36:06,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-11-29 23:36:06,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468693248] [2020-11-29 23:36:06,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:36:06,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:06,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:36:06,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:36:06,911 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 5 states. [2020-11-29 23:36:06,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:06,981 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2020-11-29 23:36:06,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:36:06,985 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-29 23:36:06,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:06,986 INFO L225 Difference]: With dead ends: 89 [2020-11-29 23:36:06,986 INFO L226 Difference]: Without dead ends: 50 [2020-11-29 23:36:06,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:36:06,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-29 23:36:06,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-11-29 23:36:06,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-11-29 23:36:06,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-11-29 23:36:06,995 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 9 [2020-11-29 23:36:06,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:06,995 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-11-29 23:36:06,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:36:06,996 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-11-29 23:36:06,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:36:06,996 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:06,996 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:07,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:07,222 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:07,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:07,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1759164880, now seen corresponding path program 2 times [2020-11-29 23:36:07,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:07,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698971547] [2020-11-29 23:36:07,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:07,345 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:07,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698971547] [2020-11-29 23:36:07,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246259103] [2020-11-29 23:36:07,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:07,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-29 23:36:07,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:36:07,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:36:07,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:07,512 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-29 23:36:07,513 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:36:07,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 23:36:07,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:36:07,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-29 23:36:07,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200916289] [2020-11-29 23:36:07,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:36:07,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:07,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:36:07,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:36:07,530 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 4 states. [2020-11-29 23:36:07,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:07,647 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-11-29 23:36:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:36:07,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-29 23:36:07,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:07,648 INFO L225 Difference]: With dead ends: 48 [2020-11-29 23:36:07,648 INFO L226 Difference]: Without dead ends: 40 [2020-11-29 23:36:07,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:36:07,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-11-29 23:36:07,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-11-29 23:36:07,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-29 23:36:07,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-11-29 23:36:07,655 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 12 [2020-11-29 23:36:07,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:07,655 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-11-29 23:36:07,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:36:07,656 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-11-29 23:36:07,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 23:36:07,656 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:07,657 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:07,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:07,862 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:07,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:07,862 INFO L82 PathProgramCache]: Analyzing trace with hash -172633462, now seen corresponding path program 1 times [2020-11-29 23:36:07,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:07,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95311675] [2020-11-29 23:36:07,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:07,987 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 23:36:07,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95311675] [2020-11-29 23:36:07,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:36:07,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:36:07,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770944475] [2020-11-29 23:36:07,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:36:07,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:07,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:36:07,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:07,990 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 3 states. [2020-11-29 23:36:08,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:08,030 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2020-11-29 23:36:08,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:36:08,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-29 23:36:08,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:08,035 INFO L225 Difference]: With dead ends: 64 [2020-11-29 23:36:08,035 INFO L226 Difference]: Without dead ends: 43 [2020-11-29 23:36:08,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:08,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-11-29 23:36:08,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-11-29 23:36:08,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-11-29 23:36:08,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2020-11-29 23:36:08,041 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 22 [2020-11-29 23:36:08,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:08,041 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2020-11-29 23:36:08,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:36:08,041 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2020-11-29 23:36:08,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 23:36:08,042 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:08,045 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:08,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 23:36:08,046 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:08,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:08,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1845883481, now seen corresponding path program 1 times [2020-11-29 23:36:08,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:08,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267659848] [2020-11-29 23:36:08,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:08,122 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 23:36:08,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267659848] [2020-11-29 23:36:08,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:36:08,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:36:08,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705183004] [2020-11-29 23:36:08,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:36:08,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:08,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:36:08,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:08,124 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 3 states. [2020-11-29 23:36:08,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:08,169 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2020-11-29 23:36:08,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:36:08,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-29 23:36:08,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:08,172 INFO L225 Difference]: With dead ends: 67 [2020-11-29 23:36:08,172 INFO L226 Difference]: Without dead ends: 65 [2020-11-29 23:36:08,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:08,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-29 23:36:08,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 52. [2020-11-29 23:36:08,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-29 23:36:08,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2020-11-29 23:36:08,183 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 25 [2020-11-29 23:36:08,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:08,184 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2020-11-29 23:36:08,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:36:08,184 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2020-11-29 23:36:08,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 23:36:08,185 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:08,185 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:08,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 23:36:08,185 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:08,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:08,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1845883426, now seen corresponding path program 1 times [2020-11-29 23:36:08,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:08,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724534856] [2020-11-29 23:36:08,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:08,286 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 23:36:08,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724534856] [2020-11-29 23:36:08,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:36:08,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:36:08,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042815186] [2020-11-29 23:36:08,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:36:08,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:08,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:36:08,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:08,288 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 3 states. [2020-11-29 23:36:08,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:08,312 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2020-11-29 23:36:08,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:36:08,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-29 23:36:08,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:08,314 INFO L225 Difference]: With dead ends: 52 [2020-11-29 23:36:08,314 INFO L226 Difference]: Without dead ends: 51 [2020-11-29 23:36:08,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:08,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-29 23:36:08,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-29 23:36:08,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-29 23:36:08,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2020-11-29 23:36:08,320 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 25 [2020-11-29 23:36:08,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:08,320 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2020-11-29 23:36:08,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:36:08,321 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2020-11-29 23:36:08,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 23:36:08,322 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:08,322 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:08,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 23:36:08,322 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:08,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:08,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1387811266, now seen corresponding path program 1 times [2020-11-29 23:36:08,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:08,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552317577] [2020-11-29 23:36:08,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 23:36:08,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552317577] [2020-11-29 23:36:08,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479179352] [2020-11-29 23:36:08,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:08,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:36:08,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:08,643 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 23:36:08,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:36:08,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 7 [2020-11-29 23:36:08,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683023301] [2020-11-29 23:36:08,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 23:36:08,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:08,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 23:36:08,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:36:08,645 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 7 states. [2020-11-29 23:36:08,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:08,769 INFO L93 Difference]: Finished difference Result 108 states and 124 transitions. [2020-11-29 23:36:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:36:08,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-11-29 23:36:08,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:08,771 INFO L225 Difference]: With dead ends: 108 [2020-11-29 23:36:08,772 INFO L226 Difference]: Without dead ends: 66 [2020-11-29 23:36:08,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:36:08,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-29 23:36:08,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 49. [2020-11-29 23:36:08,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-29 23:36:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2020-11-29 23:36:08,784 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 26 [2020-11-29 23:36:08,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:08,784 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2020-11-29 23:36:08,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 23:36:08,784 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2020-11-29 23:36:08,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 23:36:08,785 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:08,786 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:09,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:09,010 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:09,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:09,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1627182508, now seen corresponding path program 1 times [2020-11-29 23:36:09,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:09,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012603106] [2020-11-29 23:36:09,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:09,096 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 23:36:09,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012603106] [2020-11-29 23:36:09,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:36:09,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:36:09,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579994678] [2020-11-29 23:36:09,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:36:09,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:09,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:36:09,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:09,098 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand 3 states. [2020-11-29 23:36:09,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:09,123 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-11-29 23:36:09,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:36:09,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-11-29 23:36:09,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:09,124 INFO L225 Difference]: With dead ends: 54 [2020-11-29 23:36:09,124 INFO L226 Difference]: Without dead ends: 52 [2020-11-29 23:36:09,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:09,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-29 23:36:09,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-29 23:36:09,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-29 23:36:09,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2020-11-29 23:36:09,131 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 31 [2020-11-29 23:36:09,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:09,131 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2020-11-29 23:36:09,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:36:09,132 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2020-11-29 23:36:09,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-29 23:36:09,133 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:09,133 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:09,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 23:36:09,139 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:09,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:09,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1901645191, now seen corresponding path program 1 times [2020-11-29 23:36:09,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:09,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763894966] [2020-11-29 23:36:09,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:09,248 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 23:36:09,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763894966] [2020-11-29 23:36:09,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516864735] [2020-11-29 23:36:09,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:09,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 23:36:09,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 23:36:09,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:36:09,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6] total 8 [2020-11-29 23:36:09,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324563840] [2020-11-29 23:36:09,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 23:36:09,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:09,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 23:36:09,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:36:09,465 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand 8 states. [2020-11-29 23:36:09,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:09,569 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2020-11-29 23:36:09,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 23:36:09,570 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-11-29 23:36:09,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:09,571 INFO L225 Difference]: With dead ends: 100 [2020-11-29 23:36:09,571 INFO L226 Difference]: Without dead ends: 60 [2020-11-29 23:36:09,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:36:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-29 23:36:09,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2020-11-29 23:36:09,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-29 23:36:09,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2020-11-29 23:36:09,576 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 34 [2020-11-29 23:36:09,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:09,576 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2020-11-29 23:36:09,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 23:36:09,577 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2020-11-29 23:36:09,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-29 23:36:09,578 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:09,578 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:09,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-29 23:36:09,786 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:09,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:09,787 INFO L82 PathProgramCache]: Analyzing trace with hash 71284786, now seen corresponding path program 1 times [2020-11-29 23:36:09,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:09,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777666729] [2020-11-29 23:36:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:09,888 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-29 23:36:09,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777666729] [2020-11-29 23:36:09,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761017914] [2020-11-29 23:36:09,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:10,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:36:10,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-29 23:36:10,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:36:10,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2020-11-29 23:36:10,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264348105] [2020-11-29 23:36:10,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 23:36:10,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:10,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:36:10,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:36:10,104 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand 9 states. [2020-11-29 23:36:10,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:10,185 INFO L93 Difference]: Finished difference Result 114 states and 128 transitions. [2020-11-29 23:36:10,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 23:36:10,186 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-11-29 23:36:10,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:10,187 INFO L225 Difference]: With dead ends: 114 [2020-11-29 23:36:10,187 INFO L226 Difference]: Without dead ends: 72 [2020-11-29 23:36:10,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:36:10,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-29 23:36:10,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2020-11-29 23:36:10,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-29 23:36:10,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2020-11-29 23:36:10,192 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 38 [2020-11-29 23:36:10,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:10,192 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2020-11-29 23:36:10,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 23:36:10,193 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2020-11-29 23:36:10,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-29 23:36:10,194 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:10,194 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:10,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:10,418 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:10,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:10,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1472783081, now seen corresponding path program 1 times [2020-11-29 23:36:10,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:10,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829065919] [2020-11-29 23:36:10,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:10,513 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-29 23:36:10,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829065919] [2020-11-29 23:36:10,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138540222] [2020-11-29 23:36:10,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:10,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 23:36:10,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:10,793 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 23:36:10,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:36:10,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 8] total 10 [2020-11-29 23:36:10,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920111335] [2020-11-29 23:36:10,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 23:36:10,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:10,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 23:36:10,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-29 23:36:10,795 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand 10 states. [2020-11-29 23:36:10,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:10,906 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2020-11-29 23:36:10,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 23:36:10,907 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2020-11-29 23:36:10,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:10,908 INFO L225 Difference]: With dead ends: 118 [2020-11-29 23:36:10,908 INFO L226 Difference]: Without dead ends: 70 [2020-11-29 23:36:10,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-29 23:36:10,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-29 23:36:10,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2020-11-29 23:36:10,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-29 23:36:10,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2020-11-29 23:36:10,920 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 41 [2020-11-29 23:36:10,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:10,920 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2020-11-29 23:36:10,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 23:36:10,920 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2020-11-29 23:36:10,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-29 23:36:10,925 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:10,926 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:11,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:11,142 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:11,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:11,143 INFO L82 PathProgramCache]: Analyzing trace with hash 312315462, now seen corresponding path program 2 times [2020-11-29 23:36:11,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:11,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453444295] [2020-11-29 23:36:11,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-11-29 23:36:11,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453444295] [2020-11-29 23:36:11,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540776055] [2020-11-29 23:36:11,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:11,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-29 23:36:11,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:36:11,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:36:11,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:11,429 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-11-29 23:36:11,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:36:11,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-11-29 23:36:11,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744670378] [2020-11-29 23:36:11,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:36:11,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:11,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:36:11,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:36:11,431 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand 4 states. [2020-11-29 23:36:11,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:11,486 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2020-11-29 23:36:11,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:36:11,486 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-11-29 23:36:11,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:11,487 INFO L225 Difference]: With dead ends: 68 [2020-11-29 23:36:11,487 INFO L226 Difference]: Without dead ends: 53 [2020-11-29 23:36:11,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:36:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-29 23:36:11,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-29 23:36:11,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-29 23:36:11,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2020-11-29 23:36:11,493 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 46 [2020-11-29 23:36:11,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:11,493 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2020-11-29 23:36:11,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:36:11,493 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2020-11-29 23:36:11,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-29 23:36:11,494 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:11,494 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:11,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-29 23:36:11,714 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:11,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:11,714 INFO L82 PathProgramCache]: Analyzing trace with hash -889966142, now seen corresponding path program 2 times [2020-11-29 23:36:11,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:11,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043101295] [2020-11-29 23:36:11,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:11,838 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-11-29 23:36:11,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043101295] [2020-11-29 23:36:11,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278864680] [2020-11-29 23:36:11,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:11,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-29 23:36:11,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:36:11,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:36:11,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:12,023 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-11-29 23:36:12,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:36:12,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-11-29 23:36:12,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342148456] [2020-11-29 23:36:12,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 23:36:12,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:12,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:36:12,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:36:12,025 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand 6 states. [2020-11-29 23:36:12,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:12,145 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2020-11-29 23:36:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:36:12,145 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-11-29 23:36:12,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:12,146 INFO L225 Difference]: With dead ends: 64 [2020-11-29 23:36:12,146 INFO L226 Difference]: Without dead ends: 63 [2020-11-29 23:36:12,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:36:12,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-29 23:36:12,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2020-11-29 23:36:12,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-29 23:36:12,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2020-11-29 23:36:12,151 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 50 [2020-11-29 23:36:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:12,154 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2020-11-29 23:36:12,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 23:36:12,154 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2020-11-29 23:36:12,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 23:36:12,155 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:12,155 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:12,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-29 23:36:12,370 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 23:36:12,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:12,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1819146527, now seen corresponding path program 1 times [2020-11-29 23:36:12,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:12,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495153550] [2020-11-29 23:36:12,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:12,520 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-11-29 23:36:12,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495153550] [2020-11-29 23:36:12,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989605042] [2020-11-29 23:36:12,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:12,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:36:12,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:12,786 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-29 23:36:12,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:36:12,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9] total 11 [2020-11-29 23:36:12,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557603966] [2020-11-29 23:36:12,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 23:36:12,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:12,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 23:36:12,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-29 23:36:12,788 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 11 states. [2020-11-29 23:36:12,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:12,914 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2020-11-29 23:36:12,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 23:36:12,915 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 51 [2020-11-29 23:36:12,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:12,915 INFO L225 Difference]: With dead ends: 87 [2020-11-29 23:36:12,915 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:36:12,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-29 23:36:12,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:36:12,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:36:12,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:36:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:36:12,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-11-29 23:36:12,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:12,917 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:36:12,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 23:36:12,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:36:12,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:36:13,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-11-29 23:36:13,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:36:13,438 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 25 [2020-11-29 23:36:13,671 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2020-11-29 23:36:13,671 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2020-11-29 23:36:13,671 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2020-11-29 23:36:13,671 INFO L274 CegarLoopResult]: For program point L1894-2(lines 1894 1895) no Hoare annotation was computed. [2020-11-29 23:36:13,671 INFO L274 CegarLoopResult]: For program point L1894-3(line 1894) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L270 CegarLoopResult]: At program point L1894-4(lines 1894 1895) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_main_~j~0 0)) (.cse2 (= ULTIMATE.start_main_~i~4 0)) (.cse0 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse1 (<= 1 ULTIMATE.start_main_~i~3)) (.cse8 (<= 1 ULTIMATE.start_main_~j~0)) (.cse7 (< ULTIMATE.start_main_~i~4 268435454)) (.cse6 (<= 1 ULTIMATE.start_main_~i~4)) (.cse4 (<= 1 ULTIMATE.start_main_~argc~0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse6 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse8 .cse2 .cse4 .cse5) (and .cse0 .cse1 .cse8 .cse7 .cse6 .cse4 .cse5))) [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point L1886(line 1886) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point L1886-1(line 1886) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point L1886-2(line 1886) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L277 CegarLoopResult]: At program point L1903(lines 1875 1904) the Hoare annotation is: true [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point L1887(line 1887) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point L1887-1(line 1887) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point L1887-2(line 1887) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point L1887-3(line 1887) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point L1879-2(lines 1879 1880) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point L1879-3(line 1879) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L270 CegarLoopResult]: At program point L1879-4(lines 1879 1880) the Hoare annotation is: (or (<= 1 ULTIMATE.start_main_~i~3) (= ULTIMATE.start_main_~i~3 0)) [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point L1879-5(lines 1879 1880) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L270 CegarLoopResult]: At program point L1789(lines 1780 1790) the Hoare annotation is: (and (<= ULTIMATE.start_main_~argc~0 10000) (<= 1 ULTIMATE.start_main_~i~3) (<= 1 ULTIMATE.start_main_~argc~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1)) [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point L1889-2(lines 1889 1896) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point L1889-3(line 1889) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L270 CegarLoopResult]: At program point L1889-4(lines 1889 1896) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse1 (<= 1 ULTIMATE.start_main_~i~3)) (.cse2 (<= 1 ULTIMATE.start_main_~argc~0)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 (<= 1 ULTIMATE.start_main_~j~0) (<= 1 ULTIMATE.start_main_~i~4) .cse2 .cse3) (and .cse0 .cse1 (= ULTIMATE.start_main_~i~4 0) .cse2 .cse3))) [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point L1889-5(lines 1889 1896) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point L1782(lines 1782 1783) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point L1782-1(lines 1782 1783) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point L1898-2(lines 1898 1899) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point L1898-3(line 1898) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L270 CegarLoopResult]: At program point L1898-4(lines 1898 1899) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse1 (<= 1 ULTIMATE.start_main_~i~3)) (.cse2 (<= 1 ULTIMATE.start_main_~argc~0)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~i~5 0) .cse3) (and .cse0 .cse1 (<= 1 ULTIMATE.start_main_~i~5) .cse2 .cse3))) [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point L1898-5(lines 1898 1899) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2020-11-29 23:36:13,675 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2020-11-29 23:36:13,675 INFO L270 CegarLoopResult]: At program point L1775(lines 1771 1776) the Hoare annotation is: (and (<= ULTIMATE.start_main_~argc~0 10000) (<= 1 ULTIMATE.start_main_~i~3) (<= 1 ULTIMATE.start_main_~argc~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1)) [2020-11-29 23:36:13,675 INFO L274 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-11-29 23:36:13,675 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:36:13,675 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2020-11-29 23:36:13,675 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2020-11-29 23:36:13,675 INFO L274 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-11-29 23:36:13,675 INFO L270 CegarLoopResult]: At program point L1793(lines 1791 1794) the Hoare annotation is: (and (<= ULTIMATE.start_main_~argc~0 10000) (<= 1 ULTIMATE.start_main_~i~3) (<= 1 ULTIMATE.start_main_~argc~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1)) [2020-11-29 23:36:13,675 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2020-11-29 23:36:13,675 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2020-11-29 23:36:13,675 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2020-11-29 23:36:13,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:36:13 BoogieIcfgContainer [2020-11-29 23:36:13,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:36:13,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:36:13,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:36:13,723 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:36:13,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:36:05" (3/4) ... [2020-11-29 23:36:13,734 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:36:13,747 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-29 23:36:13,747 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 23:36:13,747 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 23:36:13,748 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:36:13,797 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_709b3d43-dddd-4df4-9a32-d6732296782d/bin/uautomizer/witness.graphml [2020-11-29 23:36:13,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:36:13,798 INFO L168 Benchmark]: Toolchain (without parser) took 11116.87 ms. Allocated memory was 94.4 MB in the beginning and 205.5 MB in the end (delta: 111.1 MB). Free memory was 72.3 MB in the beginning and 133.3 MB in the end (delta: -61.0 MB). Peak memory consumption was 48.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,798 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory was 60.0 MB in the beginning and 59.9 MB in the end (delta: 62.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:36:13,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1541.97 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 72.0 MB in the beginning and 72.1 MB in the end (delta: -81.6 kB). Peak memory consumption was 54.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,799 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.44 ms. Allocated memory is still 125.8 MB. Free memory was 72.1 MB in the beginning and 67.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,800 INFO L168 Benchmark]: Boogie Preprocessor took 92.64 ms. Allocated memory is still 125.8 MB. Free memory was 67.9 MB in the beginning and 65.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,800 INFO L168 Benchmark]: RCFGBuilder took 771.69 ms. Allocated memory is still 125.8 MB. Free memory was 65.8 MB in the beginning and 88.6 MB in the end (delta: -22.8 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,800 INFO L168 Benchmark]: TraceAbstraction took 8526.80 ms. Allocated memory was 125.8 MB in the beginning and 205.5 MB in the end (delta: 79.7 MB). Free memory was 88.6 MB in the beginning and 137.5 MB in the end (delta: -48.9 MB). Peak memory consumption was 115.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,801 INFO L168 Benchmark]: Witness Printer took 75.66 ms. Allocated memory is still 205.5 MB. Free memory was 137.5 MB in the beginning and 133.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,803 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory was 60.0 MB in the beginning and 59.9 MB in the end (delta: 62.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1541.97 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 72.0 MB in the beginning and 72.1 MB in the end (delta: -81.6 kB). Peak memory consumption was 54.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.44 ms. Allocated memory is still 125.8 MB. Free memory was 72.1 MB in the beginning and 67.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.64 ms. Allocated memory is still 125.8 MB. Free memory was 67.9 MB in the beginning and 65.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 771.69 ms. Allocated memory is still 125.8 MB. Free memory was 65.8 MB in the beginning and 88.6 MB in the end (delta: -22.8 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8526.80 ms. Allocated memory was 125.8 MB in the beginning and 205.5 MB in the end (delta: 79.7 MB). Free memory was 88.6 MB in the beginning and 137.5 MB in the end (delta: -48.9 MB). Peak memory consumption was 115.0 MB. Max. memory is 16.1 GB. * Witness Printer took 75.66 ms. Allocated memory is still 205.5 MB. Free memory was 137.5 MB in the beginning and 133.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 1879]: Loop Invariant Derived loop invariant: 1 <= i || i == 0 - InvariantResult [Line: 1894]: Loop Invariant Derived loop invariant: (((((((argc <= 10000 && 1 <= i) && i == 0) && j == 0) && 1 <= argc) && cond == 1) || ((((((argc <= 10000 && 1 <= i) && 1 <= i) && i < 268435454) && j == 0) && 1 <= argc) && cond == 1)) || (((((argc <= 10000 && 1 <= i) && 1 <= j) && i == 0) && 1 <= argc) && cond == 1)) || ((((((argc <= 10000 && 1 <= i) && 1 <= j) && i < 268435454) && 1 <= i) && 1 <= argc) && cond == 1) - InvariantResult [Line: 1780]: Loop Invariant Derived loop invariant: ((argc <= 10000 && 1 <= i) && 1 <= argc) && cond == 1 - InvariantResult [Line: 1889]: Loop Invariant Derived loop invariant: (((((argc <= 10000 && 1 <= i) && 1 <= j) && 1 <= i) && 1 <= argc) && cond == 1) || ((((argc <= 10000 && 1 <= i) && i == 0) && 1 <= argc) && cond == 1) - InvariantResult [Line: 1898]: Loop Invariant Derived loop invariant: ((((argc <= 10000 && 1 <= i) && 1 <= argc) && i == 0) && cond == 1) || ((((argc <= 10000 && 1 <= i) && 1 <= i) && 1 <= argc) && cond == 1) - InvariantResult [Line: 1791]: Loop Invariant Derived loop invariant: ((argc <= 10000 && 1 <= i) && 1 <= argc) && cond == 1 - InvariantResult [Line: 1771]: Loop Invariant Derived loop invariant: ((argc <= 10000 && 1 <= i) && 1 <= argc) && cond == 1 - InvariantResult [Line: 1875]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.8s, OverallIterations: 16, TraceHistogramMax: 6, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 550 SDtfs, 272 SDslu, 900 SDs, 0 SdLazy, 422 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 357 GetRequests, 292 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 56 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 30 NumberOfFragments, 199 HoareAnnotationTreeSize, 8 FomulaSimplifications, 527 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 143 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 744 NumberOfCodeBlocks, 680 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 718 ConstructedInterpolants, 0 QuantifiedInterpolants, 45433 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1738 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 467/672 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...