./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 932d0be5444dce6d8d9a378b61966d0cdf64a5cb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:53:25,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:53:25,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:53:25,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:53:25,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:53:25,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:53:25,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:53:25,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:53:25,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:53:25,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:53:25,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:53:25,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:53:25,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:53:25,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:53:25,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:53:25,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:53:25,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:53:25,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:53:25,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:53:25,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:53:25,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:53:25,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:53:25,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:53:25,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:53:25,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:53:25,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:53:25,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:53:25,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:53:25,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:53:25,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:53:25,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:53:25,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:53:25,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:53:25,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:53:25,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:53:25,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:53:25,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:53:25,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:53:25,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:53:25,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:53:25,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:53:25,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 18:53:25,254 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:53:25,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:53:25,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:53:25,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:53:25,255 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:53:25,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:53:25,255 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:53:25,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:53:25,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:53:25,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:53:25,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:53:25,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:53:25,256 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 18:53:25,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:53:25,257 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:53:25,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:53:25,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:53:25,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:53:25,257 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:53:25,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:53:25,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:53:25,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:53:25,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:53:25,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:53:25,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:53:25,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:53:25,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:53:25,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:53:25,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 -> 932d0be5444dce6d8d9a378b61966d0cdf64a5cb [2019-12-07 18:53:25,358 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:53:25,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:53:25,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:53:25,369 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:53:25,369 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:53:25,370 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2019-12-07 18:53:25,406 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/data/09e2b571c/b6ee09b83ba64140bf7f049ed903cfc4/FLAG22a51bd02 [2019-12-07 18:53:25,838 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:53:25,838 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2019-12-07 18:53:25,844 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/data/09e2b571c/b6ee09b83ba64140bf7f049ed903cfc4/FLAG22a51bd02 [2019-12-07 18:53:25,855 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/data/09e2b571c/b6ee09b83ba64140bf7f049ed903cfc4 [2019-12-07 18:53:25,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:53:25,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:53:25,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:53:25,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:53:25,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:53:25,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:53:25" (1/1) ... [2019-12-07 18:53:25,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354778c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:25, skipping insertion in model container [2019-12-07 18:53:25,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:53:25" (1/1) ... [2019-12-07 18:53:25,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:53:25,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:53:25,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:53:25,978 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:53:26,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:53:26,032 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:53:26,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:26 WrapperNode [2019-12-07 18:53:26,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:53:26,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:53:26,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:53:26,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:53:26,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:26" (1/1) ... [2019-12-07 18:53:26,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:26" (1/1) ... [2019-12-07 18:53:26,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:53:26,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:53:26,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:53:26,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:53:26,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:26" (1/1) ... [2019-12-07 18:53:26,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:26" (1/1) ... [2019-12-07 18:53:26,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:26" (1/1) ... [2019-12-07 18:53:26,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:26" (1/1) ... [2019-12-07 18:53:26,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:26" (1/1) ... [2019-12-07 18:53:26,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:26" (1/1) ... [2019-12-07 18:53:26,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:26" (1/1) ... [2019-12-07 18:53:26,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:53:26,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:53:26,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:53:26,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:53:26,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 [2019-12-07 18:53:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:53:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:53:26,225 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:53:26,225 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 18:53:26,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:53:26 BoogieIcfgContainer [2019-12-07 18:53:26,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:53:26,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:53:26,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:53:26,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:53:26,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:53:25" (1/3) ... [2019-12-07 18:53:26,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abd7a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:53:26, skipping insertion in model container [2019-12-07 18:53:26,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:53:26" (2/3) ... [2019-12-07 18:53:26,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abd7a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:53:26, skipping insertion in model container [2019-12-07 18:53:26,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:53:26" (3/3) ... [2019-12-07 18:53:26,232 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random2d.c [2019-12-07 18:53:26,238 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:53:26,242 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-12-07 18:53:26,249 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-12-07 18:53:26,264 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:53:26,264 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:53:26,264 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:53:26,264 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:53:26,264 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:53:26,265 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:53:26,265 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:53:26,265 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:53:26,276 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-12-07 18:53:26,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 18:53:26,279 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:26,280 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 18:53:26,280 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:26,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:26,284 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-12-07 18:53:26,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:26,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427878937] [2019-12-07 18:53:26,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:26,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:26,383 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427878937] [2019-12-07 18:53:26,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:53:26,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 18:53:26,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208691886] [2019-12-07 18:53:26,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:53:26,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:26,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:53:26,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:53:26,397 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2019-12-07 18:53:26,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:26,427 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2019-12-07 18:53:26,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:53:26,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-07 18:53:26,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:26,435 INFO L225 Difference]: With dead ends: 43 [2019-12-07 18:53:26,435 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 18:53:26,437 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:53:26,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 18:53:26,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-12-07 18:53:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 18:53:26,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-12-07 18:53:26,460 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 3 [2019-12-07 18:53:26,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:26,461 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-12-07 18:53:26,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:53:26,461 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-12-07 18:53:26,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 18:53:26,461 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:26,461 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 18:53:26,462 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:26,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:26,462 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-12-07 18:53:26,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:26,462 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207412927] [2019-12-07 18:53:26,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:26,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:26,478 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207412927] [2019-12-07 18:53:26,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:53:26,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 18:53:26,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840003039] [2019-12-07 18:53:26,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:53:26,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:26,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:53:26,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:53:26,480 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 3 states. [2019-12-07 18:53:26,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:26,491 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-12-07 18:53:26,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:53:26,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 18:53:26,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:26,492 INFO L225 Difference]: With dead ends: 29 [2019-12-07 18:53:26,492 INFO L226 Difference]: Without dead ends: 28 [2019-12-07 18:53:26,493 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:53:26,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-07 18:53:26,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-07 18:53:26,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 18:53:26,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-12-07 18:53:26,498 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 4 [2019-12-07 18:53:26,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:26,498 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-12-07 18:53:26,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:53:26,499 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-12-07 18:53:26,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:53:26,499 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:26,499 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:53:26,499 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:26,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:26,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1366845466, now seen corresponding path program 1 times [2019-12-07 18:53:26,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:26,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609425961] [2019-12-07 18:53:26,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:26,522 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609425961] [2019-12-07 18:53:26,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:53:26,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 18:53:26,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770641482] [2019-12-07 18:53:26,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:53:26,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:26,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:53:26,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:53:26,523 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2019-12-07 18:53:26,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:26,548 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2019-12-07 18:53:26,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:53:26,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-07 18:53:26,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:26,550 INFO L225 Difference]: With dead ends: 51 [2019-12-07 18:53:26,550 INFO L226 Difference]: Without dead ends: 49 [2019-12-07 18:53:26,550 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:53:26,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-12-07 18:53:26,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2019-12-07 18:53:26,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-12-07 18:53:26,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2019-12-07 18:53:26,557 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 7 [2019-12-07 18:53:26,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:26,557 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2019-12-07 18:53:26,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:53:26,557 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2019-12-07 18:53:26,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:53:26,558 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:26,558 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-12-07 18:53:26,558 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:26,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:26,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1366808307, now seen corresponding path program 1 times [2019-12-07 18:53:26,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:26,559 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625009041] [2019-12-07 18:53:26,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:26,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625009041] [2019-12-07 18:53:26,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177350674] [2019-12-07 18:53:26,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 [2019-12-07 18:53:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:26,604 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:53:26,606 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:26,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:26,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:26,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-12-07 18:53:26,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886637376] [2019-12-07 18:53:26,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:53:26,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:26,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:53:26,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:53:26,621 INFO L87 Difference]: Start difference. First operand 43 states and 59 transitions. Second operand 4 states. [2019-12-07 18:53:26,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:26,640 INFO L93 Difference]: Finished difference Result 70 states and 92 transitions. [2019-12-07 18:53:26,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:53:26,640 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 18:53:26,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:26,641 INFO L225 Difference]: With dead ends: 70 [2019-12-07 18:53:26,641 INFO L226 Difference]: Without dead ends: 69 [2019-12-07 18:53:26,641 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:53:26,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-12-07 18:53:26,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2019-12-07 18:53:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-12-07 18:53:26,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions. [2019-12-07 18:53:26,647 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 7 [2019-12-07 18:53:26,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:26,647 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 88 transitions. [2019-12-07 18:53:26,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:53:26,648 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions. [2019-12-07 18:53:26,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 18:53:26,648 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:26,648 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:53:26,849 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:26,849 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:26,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:26,850 INFO L82 PathProgramCache]: Analyzing trace with hash 577463568, now seen corresponding path program 1 times [2019-12-07 18:53:26,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:26,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736043798] [2019-12-07 18:53:26,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:26,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:26,881 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736043798] [2019-12-07 18:53:26,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:53:26,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 18:53:26,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273836225] [2019-12-07 18:53:26,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:53:26,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:26,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:53:26,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:53:26,883 INFO L87 Difference]: Start difference. First operand 61 states and 88 transitions. Second operand 3 states. [2019-12-07 18:53:26,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:26,918 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2019-12-07 18:53:26,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:53:26,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 18:53:26,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:26,920 INFO L225 Difference]: With dead ends: 101 [2019-12-07 18:53:26,921 INFO L226 Difference]: Without dead ends: 99 [2019-12-07 18:53:26,921 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:53:26,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-12-07 18:53:26,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2019-12-07 18:53:26,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-12-07 18:53:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions. [2019-12-07 18:53:26,932 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 8 [2019-12-07 18:53:26,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:26,932 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 141 transitions. [2019-12-07 18:53:26,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:53:26,932 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions. [2019-12-07 18:53:26,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 18:53:26,933 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:26,933 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:53:26,933 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:26,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:26,934 INFO L82 PathProgramCache]: Analyzing trace with hash 721693167, now seen corresponding path program 1 times [2019-12-07 18:53:26,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:26,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293300633] [2019-12-07 18:53:26,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:26,951 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293300633] [2019-12-07 18:53:26,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:53:26,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 18:53:26,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564287266] [2019-12-07 18:53:26,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:53:26,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:26,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:53:26,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:53:26,953 INFO L87 Difference]: Start difference. First operand 94 states and 141 transitions. Second operand 3 states. [2019-12-07 18:53:26,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:26,974 INFO L93 Difference]: Finished difference Result 165 states and 252 transitions. [2019-12-07 18:53:26,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:53:26,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-07 18:53:26,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:26,976 INFO L225 Difference]: With dead ends: 165 [2019-12-07 18:53:26,976 INFO L226 Difference]: Without dead ends: 163 [2019-12-07 18:53:26,976 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:53:26,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-12-07 18:53:26,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 154. [2019-12-07 18:53:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-07 18:53:26,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 234 transitions. [2019-12-07 18:53:26,989 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 234 transitions. Word has length 9 [2019-12-07 18:53:26,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:26,990 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 234 transitions. [2019-12-07 18:53:26,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:53:26,990 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 234 transitions. [2019-12-07 18:53:26,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:53:26,990 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:26,990 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:53:26,991 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:26,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:26,991 INFO L82 PathProgramCache]: Analyzing trace with hash 897651769, now seen corresponding path program 1 times [2019-12-07 18:53:26,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:26,991 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312763731] [2019-12-07 18:53:26,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:27,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:27,009 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312763731] [2019-12-07 18:53:27,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:53:27,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 18:53:27,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217191754] [2019-12-07 18:53:27,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:53:27,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:27,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:53:27,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:53:27,010 INFO L87 Difference]: Start difference. First operand 154 states and 234 transitions. Second operand 3 states. [2019-12-07 18:53:27,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:27,030 INFO L93 Difference]: Finished difference Result 283 states and 438 transitions. [2019-12-07 18:53:27,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:53:27,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-07 18:53:27,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:27,032 INFO L225 Difference]: With dead ends: 283 [2019-12-07 18:53:27,032 INFO L226 Difference]: Without dead ends: 281 [2019-12-07 18:53:27,033 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:53:27,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-12-07 18:53:27,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 276. [2019-12-07 18:53:27,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-12-07 18:53:27,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 424 transitions. [2019-12-07 18:53:27,046 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 424 transitions. Word has length 10 [2019-12-07 18:53:27,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:27,046 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 424 transitions. [2019-12-07 18:53:27,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:53:27,047 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 424 transitions. [2019-12-07 18:53:27,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:53:27,047 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:27,047 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1] [2019-12-07 18:53:27,047 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:27,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:27,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1830298297, now seen corresponding path program 2 times [2019-12-07 18:53:27,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:27,048 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693640834] [2019-12-07 18:53:27,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:27,066 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-07 18:53:27,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693640834] [2019-12-07 18:53:27,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212006855] [2019-12-07 18:53:27,066 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 [2019-12-07 18:53:27,081 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 18:53:27,081 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:27,081 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:53:27,082 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:27,084 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-07 18:53:27,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:27,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-12-07 18:53:27,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357210444] [2019-12-07 18:53:27,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:53:27,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:27,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:53:27,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:53:27,085 INFO L87 Difference]: Start difference. First operand 276 states and 424 transitions. Second operand 4 states. [2019-12-07 18:53:27,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:27,098 INFO L93 Difference]: Finished difference Result 276 states and 424 transitions. [2019-12-07 18:53:27,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:53:27,099 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 18:53:27,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:27,100 INFO L225 Difference]: With dead ends: 276 [2019-12-07 18:53:27,100 INFO L226 Difference]: Without dead ends: 275 [2019-12-07 18:53:27,101 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-12-07 18:53:27,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 249. [2019-12-07 18:53:27,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2019-12-07 18:53:27,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 377 transitions. [2019-12-07 18:53:27,110 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 377 transitions. Word has length 11 [2019-12-07 18:53:27,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:27,110 INFO L462 AbstractCegarLoop]: Abstraction has 249 states and 377 transitions. [2019-12-07 18:53:27,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:53:27,110 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 377 transitions. [2019-12-07 18:53:27,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:53:27,110 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:27,110 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-12-07 18:53:27,311 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:27,311 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:27,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:27,312 INFO L82 PathProgramCache]: Analyzing trace with hash -795491305, now seen corresponding path program 1 times [2019-12-07 18:53:27,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:27,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137163339] [2019-12-07 18:53:27,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:27,351 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:27,351 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137163339] [2019-12-07 18:53:27,351 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937238990] [2019-12-07 18:53:27,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 [2019-12-07 18:53:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:27,388 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:53:27,390 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:27,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:27,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:27,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-12-07 18:53:27,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939398050] [2019-12-07 18:53:27,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:53:27,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:27,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:53:27,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:53:27,399 INFO L87 Difference]: Start difference. First operand 249 states and 377 transitions. Second operand 4 states. [2019-12-07 18:53:27,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:27,453 INFO L93 Difference]: Finished difference Result 449 states and 688 transitions. [2019-12-07 18:53:27,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:53:27,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-07 18:53:27,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:27,456 INFO L225 Difference]: With dead ends: 449 [2019-12-07 18:53:27,456 INFO L226 Difference]: Without dead ends: 447 [2019-12-07 18:53:27,456 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:53:27,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-12-07 18:53:27,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 357. [2019-12-07 18:53:27,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-12-07 18:53:27,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 543 transitions. [2019-12-07 18:53:27,466 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 543 transitions. Word has length 14 [2019-12-07 18:53:27,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:27,466 INFO L462 AbstractCegarLoop]: Abstraction has 357 states and 543 transitions. [2019-12-07 18:53:27,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:53:27,466 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 543 transitions. [2019-12-07 18:53:27,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 18:53:27,467 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:27,467 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:53:27,667 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:27,668 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:27,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:27,669 INFO L82 PathProgramCache]: Analyzing trace with hash 592160614, now seen corresponding path program 1 times [2019-12-07 18:53:27,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:27,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696072774] [2019-12-07 18:53:27,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:27,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696072774] [2019-12-07 18:53:27,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260750726] [2019-12-07 18:53:27,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 [2019-12-07 18:53:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:27,750 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:53:27,752 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:27,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:27,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 18:53:27,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-12-07 18:53:27,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658301309] [2019-12-07 18:53:27,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:53:27,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:27,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:53:27,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:27,766 INFO L87 Difference]: Start difference. First operand 357 states and 543 transitions. Second operand 3 states. [2019-12-07 18:53:27,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:27,789 INFO L93 Difference]: Finished difference Result 357 states and 543 transitions. [2019-12-07 18:53:27,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:53:27,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-12-07 18:53:27,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:27,793 INFO L225 Difference]: With dead ends: 357 [2019-12-07 18:53:27,793 INFO L226 Difference]: Without dead ends: 356 [2019-12-07 18:53:27,794 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:27,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-12-07 18:53:27,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-12-07 18:53:27,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-12-07 18:53:27,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 535 transitions. [2019-12-07 18:53:27,805 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 535 transitions. Word has length 16 [2019-12-07 18:53:27,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:27,806 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 535 transitions. [2019-12-07 18:53:27,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:53:27,806 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 535 transitions. [2019-12-07 18:53:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 18:53:27,807 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:27,807 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-12-07 18:53:28,008 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:28,009 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:28,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:28,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1177295603, now seen corresponding path program 1 times [2019-12-07 18:53:28,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:28,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787611985] [2019-12-07 18:53:28,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:28,046 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787611985] [2019-12-07 18:53:28,046 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746091865] [2019-12-07 18:53:28,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 [2019-12-07 18:53:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:28,081 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:53:28,082 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:28,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:28,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-12-07 18:53:28,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580973184] [2019-12-07 18:53:28,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:53:28,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:28,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:53:28,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:53:28,088 INFO L87 Difference]: Start difference. First operand 356 states and 535 transitions. Second operand 4 states. [2019-12-07 18:53:28,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:28,151 INFO L93 Difference]: Finished difference Result 609 states and 919 transitions. [2019-12-07 18:53:28,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:53:28,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 18:53:28,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:28,157 INFO L225 Difference]: With dead ends: 609 [2019-12-07 18:53:28,158 INFO L226 Difference]: Without dead ends: 608 [2019-12-07 18:53:28,159 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:53:28,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-12-07 18:53:28,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 464. [2019-12-07 18:53:28,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2019-12-07 18:53:28,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 701 transitions. [2019-12-07 18:53:28,185 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 701 transitions. Word has length 17 [2019-12-07 18:53:28,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:28,186 INFO L462 AbstractCegarLoop]: Abstraction has 464 states and 701 transitions. [2019-12-07 18:53:28,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:53:28,186 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 701 transitions. [2019-12-07 18:53:28,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 18:53:28,188 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:28,188 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-12-07 18:53:28,389 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:28,390 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:28,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:28,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1222343671, now seen corresponding path program 1 times [2019-12-07 18:53:28,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:28,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290284662] [2019-12-07 18:53:28,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:28,436 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:28,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290284662] [2019-12-07 18:53:28,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551110238] [2019-12-07 18:53:28,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 [2019-12-07 18:53:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:28,480 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:53:28,482 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:28,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:28,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-12-07 18:53:28,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500465225] [2019-12-07 18:53:28,490 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:53:28,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:28,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:53:28,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:53:28,492 INFO L87 Difference]: Start difference. First operand 464 states and 701 transitions. Second operand 4 states. [2019-12-07 18:53:28,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:28,544 INFO L93 Difference]: Finished difference Result 834 states and 1284 transitions. [2019-12-07 18:53:28,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:53:28,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-12-07 18:53:28,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:28,548 INFO L225 Difference]: With dead ends: 834 [2019-12-07 18:53:28,548 INFO L226 Difference]: Without dead ends: 832 [2019-12-07 18:53:28,549 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:53:28,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2019-12-07 18:53:28,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 668. [2019-12-07 18:53:28,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-12-07 18:53:28,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1007 transitions. [2019-12-07 18:53:28,566 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1007 transitions. Word has length 18 [2019-12-07 18:53:28,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:28,566 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 1007 transitions. [2019-12-07 18:53:28,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:53:28,566 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1007 transitions. [2019-12-07 18:53:28,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 18:53:28,567 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:28,567 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:53:28,768 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:28,768 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:28,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:28,769 INFO L82 PathProgramCache]: Analyzing trace with hash -668230362, now seen corresponding path program 1 times [2019-12-07 18:53:28,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:28,769 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650972093] [2019-12-07 18:53:28,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:28,812 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:28,812 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650972093] [2019-12-07 18:53:28,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64775291] [2019-12-07 18:53:28,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 [2019-12-07 18:53:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:28,831 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:53:28,832 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:28,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 18:53:28,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-12-07 18:53:28,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555515725] [2019-12-07 18:53:28,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:53:28,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:28,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:53:28,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:28,841 INFO L87 Difference]: Start difference. First operand 668 states and 1007 transitions. Second operand 3 states. [2019-12-07 18:53:28,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:28,858 INFO L93 Difference]: Finished difference Result 668 states and 1007 transitions. [2019-12-07 18:53:28,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:53:28,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-12-07 18:53:28,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:28,863 INFO L225 Difference]: With dead ends: 668 [2019-12-07 18:53:28,863 INFO L226 Difference]: Without dead ends: 667 [2019-12-07 18:53:28,864 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:28,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-12-07 18:53:28,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2019-12-07 18:53:28,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2019-12-07 18:53:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 991 transitions. [2019-12-07 18:53:28,885 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 991 transitions. Word has length 20 [2019-12-07 18:53:28,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:28,886 INFO L462 AbstractCegarLoop]: Abstraction has 667 states and 991 transitions. [2019-12-07 18:53:28,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:53:28,886 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 991 transitions. [2019-12-07 18:53:28,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 18:53:28,887 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:28,887 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1] [2019-12-07 18:53:29,088 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:29,088 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:29,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:29,089 INFO L82 PathProgramCache]: Analyzing trace with hash 2023206598, now seen corresponding path program 2 times [2019-12-07 18:53:29,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:29,089 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568222039] [2019-12-07 18:53:29,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:29,117 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568222039] [2019-12-07 18:53:29,117 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566469290] [2019-12-07 18:53:29,117 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 [2019-12-07 18:53:29,136 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:53:29,137 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:29,137 INFO L264 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:53:29,138 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:29,142 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:29,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:29,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-12-07 18:53:29,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691374700] [2019-12-07 18:53:29,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:53:29,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:29,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:53:29,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:29,144 INFO L87 Difference]: Start difference. First operand 667 states and 991 transitions. Second operand 5 states. [2019-12-07 18:53:29,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:29,183 INFO L93 Difference]: Finished difference Result 1152 states and 1729 transitions. [2019-12-07 18:53:29,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:53:29,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-12-07 18:53:29,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:29,188 INFO L225 Difference]: With dead ends: 1152 [2019-12-07 18:53:29,188 INFO L226 Difference]: Without dead ends: 1150 [2019-12-07 18:53:29,189 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:29,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2019-12-07 18:53:29,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 913. [2019-12-07 18:53:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2019-12-07 18:53:29,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1351 transitions. [2019-12-07 18:53:29,220 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1351 transitions. Word has length 21 [2019-12-07 18:53:29,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:29,220 INFO L462 AbstractCegarLoop]: Abstraction has 913 states and 1351 transitions. [2019-12-07 18:53:29,220 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:53:29,220 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1351 transitions. [2019-12-07 18:53:29,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 18:53:29,221 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:29,221 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-12-07 18:53:29,421 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:29,422 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:29,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:29,422 INFO L82 PathProgramCache]: Analyzing trace with hash 759881029, now seen corresponding path program 1 times [2019-12-07 18:53:29,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:29,423 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882881988] [2019-12-07 18:53:29,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:29,446 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:29,446 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882881988] [2019-12-07 18:53:29,446 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549536049] [2019-12-07 18:53:29,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 [2019-12-07 18:53:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:29,464 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:53:29,465 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:29,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:29,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-12-07 18:53:29,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639054115] [2019-12-07 18:53:29,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:53:29,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:29,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:53:29,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:53:29,468 INFO L87 Difference]: Start difference. First operand 913 states and 1351 transitions. Second operand 4 states. [2019-12-07 18:53:29,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:29,509 INFO L93 Difference]: Finished difference Result 1557 states and 2328 transitions. [2019-12-07 18:53:29,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:53:29,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-12-07 18:53:29,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:29,517 INFO L225 Difference]: With dead ends: 1557 [2019-12-07 18:53:29,517 INFO L226 Difference]: Without dead ends: 1556 [2019-12-07 18:53:29,519 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:53:29,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2019-12-07 18:53:29,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1193. [2019-12-07 18:53:29,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2019-12-07 18:53:29,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1768 transitions. [2019-12-07 18:53:29,548 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1768 transitions. Word has length 21 [2019-12-07 18:53:29,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:29,548 INFO L462 AbstractCegarLoop]: Abstraction has 1193 states and 1768 transitions. [2019-12-07 18:53:29,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:53:29,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1768 transitions. [2019-12-07 18:53:29,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 18:53:29,549 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:29,549 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2019-12-07 18:53:29,749 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:29,750 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:29,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:29,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1092753757, now seen corresponding path program 2 times [2019-12-07 18:53:29,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:29,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964384355] [2019-12-07 18:53:29,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:29,771 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964384355] [2019-12-07 18:53:29,771 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924166770] [2019-12-07 18:53:29,771 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/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 [2019-12-07 18:53:29,789 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:53:29,789 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:29,789 INFO L264 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:53:29,790 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:29,793 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:29,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:29,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-12-07 18:53:29,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914448583] [2019-12-07 18:53:29,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:53:29,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:29,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:53:29,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:29,794 INFO L87 Difference]: Start difference. First operand 1193 states and 1768 transitions. Second operand 5 states. [2019-12-07 18:53:29,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:29,831 INFO L93 Difference]: Finished difference Result 1951 states and 2902 transitions. [2019-12-07 18:53:29,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:53:29,832 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 18:53:29,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:29,839 INFO L225 Difference]: With dead ends: 1951 [2019-12-07 18:53:29,839 INFO L226 Difference]: Without dead ends: 1950 [2019-12-07 18:53:29,840 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2019-12-07 18:53:29,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1429. [2019-12-07 18:53:29,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1429 states. [2019-12-07 18:53:29,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2114 transitions. [2019-12-07 18:53:29,864 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2114 transitions. Word has length 25 [2019-12-07 18:53:29,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:29,864 INFO L462 AbstractCegarLoop]: Abstraction has 1429 states and 2114 transitions. [2019-12-07 18:53:29,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:53:29,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2114 transitions. [2019-12-07 18:53:29,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 18:53:29,865 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:29,865 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1] [2019-12-07 18:53:30,065 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:30,066 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:30,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:30,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1883170607, now seen corresponding path program 2 times [2019-12-07 18:53:30,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:30,067 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431166291] [2019-12-07 18:53:30,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:30,107 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:30,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431166291] [2019-12-07 18:53:30,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608133907] [2019-12-07 18:53:30,107 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:30,154 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:53:30,154 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:30,155 INFO L264 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:53:30,157 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:30,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:30,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-12-07 18:53:30,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035232692] [2019-12-07 18:53:30,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:53:30,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:30,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:53:30,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:30,166 INFO L87 Difference]: Start difference. First operand 1429 states and 2114 transitions. Second operand 5 states. [2019-12-07 18:53:30,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:30,261 INFO L93 Difference]: Finished difference Result 2462 states and 3693 transitions. [2019-12-07 18:53:30,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:53:30,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-12-07 18:53:30,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:30,278 INFO L225 Difference]: With dead ends: 2462 [2019-12-07 18:53:30,279 INFO L226 Difference]: Without dead ends: 2460 [2019-12-07 18:53:30,282 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:30,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2019-12-07 18:53:30,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 1959. [2019-12-07 18:53:30,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2019-12-07 18:53:30,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 2882 transitions. [2019-12-07 18:53:30,319 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 2882 transitions. Word has length 27 [2019-12-07 18:53:30,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:30,319 INFO L462 AbstractCegarLoop]: Abstraction has 1959 states and 2882 transitions. [2019-12-07 18:53:30,319 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:53:30,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 2882 transitions. [2019-12-07 18:53:30,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 18:53:30,320 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:30,320 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1] [2019-12-07 18:53:30,520 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:30,521 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:30,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:30,521 INFO L82 PathProgramCache]: Analyzing trace with hash -748146377, now seen corresponding path program 3 times [2019-12-07 18:53:30,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:30,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173097446] [2019-12-07 18:53:30,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:30,551 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:30,551 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173097446] [2019-12-07 18:53:30,551 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438858832] [2019-12-07 18:53:30,551 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:30,577 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-12-07 18:53:30,577 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:30,578 INFO L264 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:53:30,579 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:30,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:30,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 18:53:30,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644376389] [2019-12-07 18:53:30,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:53:30,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:30,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:53:30,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:53:30,585 INFO L87 Difference]: Start difference. First operand 1959 states and 2882 transitions. Second operand 6 states. [2019-12-07 18:53:30,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:30,636 INFO L93 Difference]: Finished difference Result 3173 states and 4732 transitions. [2019-12-07 18:53:30,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:53:30,636 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2019-12-07 18:53:30,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:30,648 INFO L225 Difference]: With dead ends: 3173 [2019-12-07 18:53:30,648 INFO L226 Difference]: Without dead ends: 3171 [2019-12-07 18:53:30,651 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:53:30,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2019-12-07 18:53:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 2563. [2019-12-07 18:53:30,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2563 states. [2019-12-07 18:53:30,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3749 transitions. [2019-12-07 18:53:30,691 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3749 transitions. Word has length 28 [2019-12-07 18:53:30,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:30,691 INFO L462 AbstractCegarLoop]: Abstraction has 2563 states and 3749 transitions. [2019-12-07 18:53:30,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:53:30,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3749 transitions. [2019-12-07 18:53:30,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 18:53:30,692 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:30,692 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2019-12-07 18:53:30,892 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:30,894 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:30,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:30,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1682870728, now seen corresponding path program 2 times [2019-12-07 18:53:30,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:30,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660419330] [2019-12-07 18:53:30,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:30,942 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:30,943 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660419330] [2019-12-07 18:53:30,943 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570770892] [2019-12-07 18:53:30,943 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:30,981 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:53:30,981 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:30,982 INFO L264 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:53:30,984 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:30,990 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:30,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:30,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-12-07 18:53:30,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173565538] [2019-12-07 18:53:30,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:53:30,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:30,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:53:30,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:30,992 INFO L87 Difference]: Start difference. First operand 2563 states and 3749 transitions. Second operand 5 states. [2019-12-07 18:53:31,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:31,064 INFO L93 Difference]: Finished difference Result 4182 states and 6155 transitions. [2019-12-07 18:53:31,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:53:31,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 18:53:31,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:31,084 INFO L225 Difference]: With dead ends: 4182 [2019-12-07 18:53:31,084 INFO L226 Difference]: Without dead ends: 4181 [2019-12-07 18:53:31,087 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:53:31,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2019-12-07 18:53:31,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 3071. [2019-12-07 18:53:31,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3071 states. [2019-12-07 18:53:31,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 4483 transitions. [2019-12-07 18:53:31,129 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 4483 transitions. Word has length 31 [2019-12-07 18:53:31,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:31,129 INFO L462 AbstractCegarLoop]: Abstraction has 3071 states and 4483 transitions. [2019-12-07 18:53:31,130 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:53:31,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 4483 transitions. [2019-12-07 18:53:31,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 18:53:31,130 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:31,130 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2019-12-07 18:53:31,331 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:31,332 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:31,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:31,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1047523897, now seen corresponding path program 3 times [2019-12-07 18:53:31,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:31,334 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153239603] [2019-12-07 18:53:31,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:31,391 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:31,391 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153239603] [2019-12-07 18:53:31,391 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556391372] [2019-12-07 18:53:31,391 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:31,432 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-12-07 18:53:31,432 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:31,433 INFO L264 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:53:31,447 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:31,455 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:31,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:31,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 18:53:31,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622208899] [2019-12-07 18:53:31,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:53:31,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:31,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:53:31,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:53:31,457 INFO L87 Difference]: Start difference. First operand 3071 states and 4483 transitions. Second operand 6 states. [2019-12-07 18:53:31,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:31,576 INFO L93 Difference]: Finished difference Result 4727 states and 6947 transitions. [2019-12-07 18:53:31,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:53:31,577 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-07 18:53:31,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:31,604 INFO L225 Difference]: With dead ends: 4727 [2019-12-07 18:53:31,604 INFO L226 Difference]: Without dead ends: 4726 [2019-12-07 18:53:31,608 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:53:31,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2019-12-07 18:53:31,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 3459. [2019-12-07 18:53:31,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3459 states. [2019-12-07 18:53:31,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5047 transitions. [2019-12-07 18:53:31,653 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5047 transitions. Word has length 33 [2019-12-07 18:53:31,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:31,654 INFO L462 AbstractCegarLoop]: Abstraction has 3459 states and 5047 transitions. [2019-12-07 18:53:31,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:53:31,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5047 transitions. [2019-12-07 18:53:31,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 18:53:31,654 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:31,654 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-12-07 18:53:31,855 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:31,855 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:31,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:31,856 INFO L82 PathProgramCache]: Analyzing trace with hash -507101786, now seen corresponding path program 4 times [2019-12-07 18:53:31,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:31,856 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525882095] [2019-12-07 18:53:31,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:31,913 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:31,914 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525882095] [2019-12-07 18:53:31,914 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922170336] [2019-12-07 18:53:31,914 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:31,963 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 18:53:31,963 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:31,964 INFO L264 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:53:31,966 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:31,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:31,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-12-07 18:53:31,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554979111] [2019-12-07 18:53:31,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:53:31,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:31,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:53:31,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:53:31,973 INFO L87 Difference]: Start difference. First operand 3459 states and 5047 transitions. Second operand 7 states. [2019-12-07 18:53:32,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:32,041 INFO L93 Difference]: Finished difference Result 5326 states and 7884 transitions. [2019-12-07 18:53:32,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:53:32,041 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-07 18:53:32,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:32,056 INFO L225 Difference]: With dead ends: 5326 [2019-12-07 18:53:32,056 INFO L226 Difference]: Without dead ends: 5324 [2019-12-07 18:53:32,060 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:53:32,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2019-12-07 18:53:32,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 4377. [2019-12-07 18:53:32,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4377 states. [2019-12-07 18:53:32,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 6353 transitions. [2019-12-07 18:53:32,114 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 6353 transitions. Word has length 35 [2019-12-07 18:53:32,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:32,115 INFO L462 AbstractCegarLoop]: Abstraction has 4377 states and 6353 transitions. [2019-12-07 18:53:32,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:53:32,115 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 6353 transitions. [2019-12-07 18:53:32,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-07 18:53:32,115 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:32,116 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1] [2019-12-07 18:53:32,316 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:32,316 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:32,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:32,316 INFO L82 PathProgramCache]: Analyzing trace with hash -32854327, now seen corresponding path program 3 times [2019-12-07 18:53:32,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:32,317 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524510077] [2019-12-07 18:53:32,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:32,338 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:32,338 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524510077] [2019-12-07 18:53:32,338 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134215942] [2019-12-07 18:53:32,338 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:32,357 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-12-07 18:53:32,357 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:32,357 INFO L264 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:53:32,358 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:32,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:32,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 18:53:32,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301003350] [2019-12-07 18:53:32,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:53:32,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:32,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:53:32,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:53:32,362 INFO L87 Difference]: Start difference. First operand 4377 states and 6353 transitions. Second operand 6 states. [2019-12-07 18:53:32,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:32,418 INFO L93 Difference]: Finished difference Result 7069 states and 10425 transitions. [2019-12-07 18:53:32,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:53:32,418 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-12-07 18:53:32,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:32,427 INFO L225 Difference]: With dead ends: 7069 [2019-12-07 18:53:32,427 INFO L226 Difference]: Without dead ends: 7067 [2019-12-07 18:53:32,431 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:53:32,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2019-12-07 18:53:32,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 5729. [2019-12-07 18:53:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5729 states. [2019-12-07 18:53:32,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 8265 transitions. [2019-12-07 18:53:32,497 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 8265 transitions. Word has length 36 [2019-12-07 18:53:32,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:32,497 INFO L462 AbstractCegarLoop]: Abstraction has 5729 states and 8265 transitions. [2019-12-07 18:53:32,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:53:32,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 8265 transitions. [2019-12-07 18:53:32,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 18:53:32,498 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:32,498 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2019-12-07 18:53:32,698 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:32,699 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:32,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:32,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1137071253, now seen corresponding path program 3 times [2019-12-07 18:53:32,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:32,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552816305] [2019-12-07 18:53:32,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:32,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552816305] [2019-12-07 18:53:32,760 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641500584] [2019-12-07 18:53:32,760 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:32,791 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-12-07 18:53:32,791 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:32,791 INFO L264 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:53:32,793 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:32,798 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:32,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:32,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 18:53:32,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807929943] [2019-12-07 18:53:32,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:53:32,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:32,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:53:32,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:53:32,799 INFO L87 Difference]: Start difference. First operand 5729 states and 8265 transitions. Second operand 6 states. [2019-12-07 18:53:32,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:32,877 INFO L93 Difference]: Finished difference Result 8806 states and 12809 transitions. [2019-12-07 18:53:32,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:53:32,877 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2019-12-07 18:53:32,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:32,889 INFO L225 Difference]: With dead ends: 8806 [2019-12-07 18:53:32,889 INFO L226 Difference]: Without dead ends: 8805 [2019-12-07 18:53:32,894 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:53:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8805 states. [2019-12-07 18:53:32,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8805 to 6453. [2019-12-07 18:53:32,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6453 states. [2019-12-07 18:53:32,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 9305 transitions. [2019-12-07 18:53:32,970 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 9305 transitions. Word has length 41 [2019-12-07 18:53:32,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:32,970 INFO L462 AbstractCegarLoop]: Abstraction has 6453 states and 9305 transitions. [2019-12-07 18:53:32,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:53:32,970 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 9305 transitions. [2019-12-07 18:53:32,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 18:53:32,971 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:32,971 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-12-07 18:53:33,172 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:33,172 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:33,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:33,173 INFO L82 PathProgramCache]: Analyzing trace with hash 589297713, now seen corresponding path program 4 times [2019-12-07 18:53:33,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:33,173 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493166192] [2019-12-07 18:53:33,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:33,231 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493166192] [2019-12-07 18:53:33,231 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457498102] [2019-12-07 18:53:33,231 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:33,253 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 18:53:33,253 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:33,253 INFO L264 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:53:33,254 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:33,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:33,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-12-07 18:53:33,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408420678] [2019-12-07 18:53:33,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:53:33,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:33,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:53:33,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:53:33,259 INFO L87 Difference]: Start difference. First operand 6453 states and 9305 transitions. Second operand 7 states. [2019-12-07 18:53:33,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:33,322 INFO L93 Difference]: Finished difference Result 9500 states and 13815 transitions. [2019-12-07 18:53:33,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:53:33,323 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2019-12-07 18:53:33,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:33,331 INFO L225 Difference]: With dead ends: 9500 [2019-12-07 18:53:33,331 INFO L226 Difference]: Without dead ends: 9499 [2019-12-07 18:53:33,337 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:53:33,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9499 states. [2019-12-07 18:53:33,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9499 to 7025. [2019-12-07 18:53:33,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7025 states. [2019-12-07 18:53:33,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 10131 transitions. [2019-12-07 18:53:33,413 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 10131 transitions. Word has length 41 [2019-12-07 18:53:33,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:33,413 INFO L462 AbstractCegarLoop]: Abstraction has 7025 states and 10131 transitions. [2019-12-07 18:53:33,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:53:33,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 10131 transitions. [2019-12-07 18:53:33,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-07 18:53:33,414 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:33,414 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 1, 1] [2019-12-07 18:53:33,615 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:33,615 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:33,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:33,616 INFO L82 PathProgramCache]: Analyzing trace with hash 644163159, now seen corresponding path program 5 times [2019-12-07 18:53:33,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:33,616 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174425398] [2019-12-07 18:53:33,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:33,673 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:33,673 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174425398] [2019-12-07 18:53:33,674 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628607576] [2019-12-07 18:53:33,674 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:33,695 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-12-07 18:53:33,695 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:33,696 INFO L264 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:53:33,697 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:33,702 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:33,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:33,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-12-07 18:53:33,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646917396] [2019-12-07 18:53:33,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:53:33,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:33,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:53:33,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:53:33,704 INFO L87 Difference]: Start difference. First operand 7025 states and 10131 transitions. Second operand 8 states. [2019-12-07 18:53:33,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:33,771 INFO L93 Difference]: Finished difference Result 10381 states and 15206 transitions. [2019-12-07 18:53:33,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:53:33,771 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-12-07 18:53:33,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:33,778 INFO L225 Difference]: With dead ends: 10381 [2019-12-07 18:53:33,778 INFO L226 Difference]: Without dead ends: 10379 [2019-12-07 18:53:33,784 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:53:33,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10379 states. [2019-12-07 18:53:33,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10379 to 8665. [2019-12-07 18:53:33,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8665 states. [2019-12-07 18:53:33,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8665 states to 8665 states and 12438 transitions. [2019-12-07 18:53:33,883 INFO L78 Accepts]: Start accepts. Automaton has 8665 states and 12438 transitions. Word has length 42 [2019-12-07 18:53:33,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:33,883 INFO L462 AbstractCegarLoop]: Abstraction has 8665 states and 12438 transitions. [2019-12-07 18:53:33,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:53:33,884 INFO L276 IsEmpty]: Start isEmpty. Operand 8665 states and 12438 transitions. [2019-12-07 18:53:33,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-07 18:53:33,885 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:33,885 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-12-07 18:53:34,086 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:34,086 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:34,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:34,087 INFO L82 PathProgramCache]: Analyzing trace with hash -809708433, now seen corresponding path program 4 times [2019-12-07 18:53:34,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:34,088 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789177995] [2019-12-07 18:53:34,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:34,146 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:34,146 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789177995] [2019-12-07 18:53:34,146 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674080527] [2019-12-07 18:53:34,146 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:34,170 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 18:53:34,171 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:34,171 INFO L264 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:53:34,172 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:34,176 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:34,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:34,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-12-07 18:53:34,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630780011] [2019-12-07 18:53:34,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:53:34,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:34,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:53:34,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:53:34,177 INFO L87 Difference]: Start difference. First operand 8665 states and 12438 transitions. Second operand 7 states. [2019-12-07 18:53:34,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:34,256 INFO L93 Difference]: Finished difference Result 13312 states and 19429 transitions. [2019-12-07 18:53:34,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:53:34,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-12-07 18:53:34,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:34,265 INFO L225 Difference]: With dead ends: 13312 [2019-12-07 18:53:34,265 INFO L226 Difference]: Without dead ends: 13310 [2019-12-07 18:53:34,268 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:53:34,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13310 states. [2019-12-07 18:53:34,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13310 to 10967. [2019-12-07 18:53:34,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10967 states. [2019-12-07 18:53:34,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10967 states to 10967 states and 15657 transitions. [2019-12-07 18:53:34,380 INFO L78 Accepts]: Start accepts. Automaton has 10967 states and 15657 transitions. Word has length 45 [2019-12-07 18:53:34,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:34,381 INFO L462 AbstractCegarLoop]: Abstraction has 10967 states and 15657 transitions. [2019-12-07 18:53:34,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:53:34,381 INFO L276 IsEmpty]: Start isEmpty. Operand 10967 states and 15657 transitions. [2019-12-07 18:53:34,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-07 18:53:34,382 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:34,383 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1] [2019-12-07 18:53:34,583 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:34,583 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:34,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:34,584 INFO L82 PathProgramCache]: Analyzing trace with hash -144620410, now seen corresponding path program 6 times [2019-12-07 18:53:34,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:34,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418555904] [2019-12-07 18:53:34,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:34,625 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:34,625 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418555904] [2019-12-07 18:53:34,625 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394888675] [2019-12-07 18:53:34,625 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:34,647 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-12-07 18:53:34,647 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:34,648 INFO L264 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:53:34,648 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:34,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:34,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-12-07 18:53:34,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980825085] [2019-12-07 18:53:34,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 18:53:34,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:34,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 18:53:34,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:53:34,654 INFO L87 Difference]: Start difference. First operand 10967 states and 15657 transitions. Second operand 9 states. [2019-12-07 18:53:34,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:34,741 INFO L93 Difference]: Finished difference Result 15622 states and 22665 transitions. [2019-12-07 18:53:34,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:53:34,742 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2019-12-07 18:53:34,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:34,752 INFO L225 Difference]: With dead ends: 15622 [2019-12-07 18:53:34,753 INFO L226 Difference]: Without dead ends: 15620 [2019-12-07 18:53:34,756 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:53:34,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15620 states. [2019-12-07 18:53:34,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15620 to 13091. [2019-12-07 18:53:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13091 states. [2019-12-07 18:53:34,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13091 states to 13091 states and 18609 transitions. [2019-12-07 18:53:34,919 INFO L78 Accepts]: Start accepts. Automaton has 13091 states and 18609 transitions. Word has length 49 [2019-12-07 18:53:34,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:34,919 INFO L462 AbstractCegarLoop]: Abstraction has 13091 states and 18609 transitions. [2019-12-07 18:53:34,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 18:53:34,919 INFO L276 IsEmpty]: Start isEmpty. Operand 13091 states and 18609 transitions. [2019-12-07 18:53:34,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-07 18:53:34,920 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:34,921 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2019-12-07 18:53:35,121 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:35,121 INFO L410 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:35,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:35,122 INFO L82 PathProgramCache]: Analyzing trace with hash 2004605083, now seen corresponding path program 5 times [2019-12-07 18:53:35,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:35,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295746559] [2019-12-07 18:53:35,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:35,162 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:35,162 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295746559] [2019-12-07 18:53:35,162 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827806433] [2019-12-07 18:53:35,162 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:35,183 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-12-07 18:53:35,183 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:35,184 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:53:35,184 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:35,189 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:35,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:35,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-12-07 18:53:35,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333256067] [2019-12-07 18:53:35,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:53:35,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:35,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:53:35,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:53:35,190 INFO L87 Difference]: Start difference. First operand 13091 states and 18609 transitions. Second operand 8 states. [2019-12-07 18:53:35,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:35,291 INFO L93 Difference]: Finished difference Result 19890 states and 28521 transitions. [2019-12-07 18:53:35,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:53:35,291 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2019-12-07 18:53:35,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:35,306 INFO L225 Difference]: With dead ends: 19890 [2019-12-07 18:53:35,306 INFO L226 Difference]: Without dead ends: 19889 [2019-12-07 18:53:35,310 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:53:35,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19889 states. [2019-12-07 18:53:35,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19889 to 14129. [2019-12-07 18:53:35,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14129 states. [2019-12-07 18:53:35,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14129 states to 14129 states and 20097 transitions. [2019-12-07 18:53:35,474 INFO L78 Accepts]: Start accepts. Automaton has 14129 states and 20097 transitions. Word has length 49 [2019-12-07 18:53:35,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:35,475 INFO L462 AbstractCegarLoop]: Abstraction has 14129 states and 20097 transitions. [2019-12-07 18:53:35,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:53:35,475 INFO L276 IsEmpty]: Start isEmpty. Operand 14129 states and 20097 transitions. [2019-12-07 18:53:35,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 18:53:35,476 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:35,476 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-12-07 18:53:35,677 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:35,677 INFO L410 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:35,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:35,677 INFO L82 PathProgramCache]: Analyzing trace with hash -85375778, now seen corresponding path program 4 times [2019-12-07 18:53:35,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:35,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784474132] [2019-12-07 18:53:35,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:35,707 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:35,707 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784474132] [2019-12-07 18:53:35,707 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790262740] [2019-12-07 18:53:35,707 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:35,734 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 18:53:35,735 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:35,735 INFO L264 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:53:35,736 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:35,740 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:35,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:35,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-12-07 18:53:35,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563873851] [2019-12-07 18:53:35,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:53:35,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:35,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:53:35,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:53:35,742 INFO L87 Difference]: Start difference. First operand 14129 states and 20097 transitions. Second operand 7 states. [2019-12-07 18:53:35,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:35,871 INFO L93 Difference]: Finished difference Result 20774 states and 29837 transitions. [2019-12-07 18:53:35,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:53:35,871 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-12-07 18:53:35,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:35,885 INFO L225 Difference]: With dead ends: 20774 [2019-12-07 18:53:35,885 INFO L226 Difference]: Without dead ends: 20773 [2019-12-07 18:53:35,889 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:53:35,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20773 states. [2019-12-07 18:53:36,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20773 to 15381. [2019-12-07 18:53:36,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15381 states. [2019-12-07 18:53:36,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15381 states to 15381 states and 21881 transitions. [2019-12-07 18:53:36,054 INFO L78 Accepts]: Start accepts. Automaton has 15381 states and 21881 transitions. Word has length 51 [2019-12-07 18:53:36,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:36,054 INFO L462 AbstractCegarLoop]: Abstraction has 15381 states and 21881 transitions. [2019-12-07 18:53:36,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:53:36,054 INFO L276 IsEmpty]: Start isEmpty. Operand 15381 states and 21881 transitions. [2019-12-07 18:53:36,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-12-07 18:53:36,056 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:36,056 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1] [2019-12-07 18:53:36,256 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:36,257 INFO L410 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:36,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:36,257 INFO L82 PathProgramCache]: Analyzing trace with hash -884758135, now seen corresponding path program 5 times [2019-12-07 18:53:36,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:36,258 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520153324] [2019-12-07 18:53:36,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:36,297 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:36,298 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520153324] [2019-12-07 18:53:36,298 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47265301] [2019-12-07 18:53:36,298 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:36,325 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-12-07 18:53:36,325 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:36,325 INFO L264 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:53:36,326 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:36,331 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:36,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:36,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-12-07 18:53:36,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746436439] [2019-12-07 18:53:36,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:53:36,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:36,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:53:36,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:53:36,332 INFO L87 Difference]: Start difference. First operand 15381 states and 21881 transitions. Second operand 8 states. [2019-12-07 18:53:36,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:36,448 INFO L93 Difference]: Finished difference Result 22697 states and 32841 transitions. [2019-12-07 18:53:36,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:53:36,448 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2019-12-07 18:53:36,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:36,464 INFO L225 Difference]: With dead ends: 22697 [2019-12-07 18:53:36,465 INFO L226 Difference]: Without dead ends: 22695 [2019-12-07 18:53:36,468 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:53:36,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22695 states. [2019-12-07 18:53:36,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22695 to 18973. [2019-12-07 18:53:36,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18973 states. [2019-12-07 18:53:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18973 states to 18973 states and 26864 transitions. [2019-12-07 18:53:36,689 INFO L78 Accepts]: Start accepts. Automaton has 18973 states and 26864 transitions. Word has length 54 [2019-12-07 18:53:36,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:36,689 INFO L462 AbstractCegarLoop]: Abstraction has 18973 states and 26864 transitions. [2019-12-07 18:53:36,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:53:36,689 INFO L276 IsEmpty]: Start isEmpty. Operand 18973 states and 26864 transitions. [2019-12-07 18:53:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-12-07 18:53:36,692 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:36,692 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 1, 1] [2019-12-07 18:53:36,892 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:36,892 INFO L410 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:36,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:36,893 INFO L82 PathProgramCache]: Analyzing trace with hash -931224713, now seen corresponding path program 7 times [2019-12-07 18:53:36,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:36,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567929735] [2019-12-07 18:53:36,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:36,949 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:36,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567929735] [2019-12-07 18:53:36,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854493435] [2019-12-07 18:53:36,950 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:37,004 INFO L264 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:53:37,005 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:37,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:37,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-12-07 18:53:37,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778058672] [2019-12-07 18:53:37,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:53:37,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:37,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:53:37,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:53:37,011 INFO L87 Difference]: Start difference. First operand 18973 states and 26864 transitions. Second operand 10 states. [2019-12-07 18:53:37,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:37,155 INFO L93 Difference]: Finished difference Result 26251 states and 37778 transitions. [2019-12-07 18:53:37,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 18:53:37,156 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2019-12-07 18:53:37,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:37,177 INFO L225 Difference]: With dead ends: 26251 [2019-12-07 18:53:37,177 INFO L226 Difference]: Without dead ends: 26249 [2019-12-07 18:53:37,182 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:53:37,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26249 states. [2019-12-07 18:53:37,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26249 to 22311. [2019-12-07 18:53:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22311 states. [2019-12-07 18:53:37,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22311 states to 22311 states and 31473 transitions. [2019-12-07 18:53:37,419 INFO L78 Accepts]: Start accepts. Automaton has 22311 states and 31473 transitions. Word has length 56 [2019-12-07 18:53:37,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:37,419 INFO L462 AbstractCegarLoop]: Abstraction has 22311 states and 31473 transitions. [2019-12-07 18:53:37,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:53:37,420 INFO L276 IsEmpty]: Start isEmpty. Operand 22311 states and 31473 transitions. [2019-12-07 18:53:37,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-12-07 18:53:37,422 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:37,422 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2019-12-07 18:53:37,622 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:37,622 INFO L410 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:37,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:37,623 INFO L82 PathProgramCache]: Analyzing trace with hash -2041729275, now seen corresponding path program 6 times [2019-12-07 18:53:37,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:37,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397438214] [2019-12-07 18:53:37,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:37,667 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397438214] [2019-12-07 18:53:37,667 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691939427] [2019-12-07 18:53:37,667 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:37,689 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-12-07 18:53:37,689 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:37,690 INFO L264 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:53:37,690 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:37,696 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:37,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:37,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-12-07 18:53:37,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12663186] [2019-12-07 18:53:37,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 18:53:37,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:37,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 18:53:37,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:53:37,697 INFO L87 Difference]: Start difference. First operand 22311 states and 31473 transitions. Second operand 9 states. [2019-12-07 18:53:37,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:37,852 INFO L93 Difference]: Finished difference Result 32955 states and 46932 transitions. [2019-12-07 18:53:37,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:53:37,852 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-12-07 18:53:37,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:37,879 INFO L225 Difference]: With dead ends: 32955 [2019-12-07 18:53:37,880 INFO L226 Difference]: Without dead ends: 32954 [2019-12-07 18:53:37,885 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:53:37,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32954 states. [2019-12-07 18:53:38,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32954 to 23705. [2019-12-07 18:53:38,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23705 states. [2019-12-07 18:53:38,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23705 states to 23705 states and 33462 transitions. [2019-12-07 18:53:38,189 INFO L78 Accepts]: Start accepts. Automaton has 23705 states and 33462 transitions. Word has length 57 [2019-12-07 18:53:38,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:38,190 INFO L462 AbstractCegarLoop]: Abstraction has 23705 states and 33462 transitions. [2019-12-07 18:53:38,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 18:53:38,190 INFO L276 IsEmpty]: Start isEmpty. Operand 23705 states and 33462 transitions. [2019-12-07 18:53:38,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-12-07 18:53:38,192 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:38,192 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2019-12-07 18:53:38,393 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:38,393 INFO L410 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:38,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:38,394 INFO L82 PathProgramCache]: Analyzing trace with hash 2087316113, now seen corresponding path program 5 times [2019-12-07 18:53:38,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:38,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787108718] [2019-12-07 18:53:38,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:38,451 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787108718] [2019-12-07 18:53:38,451 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41739250] [2019-12-07 18:53:38,451 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:38,477 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-12-07 18:53:38,477 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:38,478 INFO L264 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:53:38,478 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:38,485 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:38,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:38,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-12-07 18:53:38,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715280263] [2019-12-07 18:53:38,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:53:38,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:38,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:53:38,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:53:38,486 INFO L87 Difference]: Start difference. First operand 23705 states and 33462 transitions. Second operand 8 states. [2019-12-07 18:53:38,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:38,644 INFO L93 Difference]: Finished difference Result 33669 states and 48018 transitions. [2019-12-07 18:53:38,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:53:38,644 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2019-12-07 18:53:38,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:38,671 INFO L225 Difference]: With dead ends: 33669 [2019-12-07 18:53:38,672 INFO L226 Difference]: Without dead ends: 33668 [2019-12-07 18:53:38,677 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:53:38,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33668 states. [2019-12-07 18:53:39,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33668 to 25269. [2019-12-07 18:53:39,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25269 states. [2019-12-07 18:53:39,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25269 states to 25269 states and 35684 transitions. [2019-12-07 18:53:39,036 INFO L78 Accepts]: Start accepts. Automaton has 25269 states and 35684 transitions. Word has length 61 [2019-12-07 18:53:39,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:39,037 INFO L462 AbstractCegarLoop]: Abstraction has 25269 states and 35684 transitions. [2019-12-07 18:53:39,037 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:53:39,037 INFO L276 IsEmpty]: Start isEmpty. Operand 25269 states and 35684 transitions. [2019-12-07 18:53:39,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-12-07 18:53:39,040 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:39,040 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1] [2019-12-07 18:53:39,240 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:39,241 INFO L410 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:39,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:39,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1714864998, now seen corresponding path program 8 times [2019-12-07 18:53:39,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:39,242 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400067844] [2019-12-07 18:53:39,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:39,327 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:39,327 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400067844] [2019-12-07 18:53:39,328 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388016754] [2019-12-07 18:53:39,328 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:39,362 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:53:39,362 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:39,363 INFO L264 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 18:53:39,364 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:39,372 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:39,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:39,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-12-07 18:53:39,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490084800] [2019-12-07 18:53:39,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 18:53:39,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:39,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 18:53:39,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 18:53:39,374 INFO L87 Difference]: Start difference. First operand 25269 states and 35684 transitions. Second operand 11 states. [2019-12-07 18:53:39,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:39,571 INFO L93 Difference]: Finished difference Result 34130 states and 48968 transitions. [2019-12-07 18:53:39,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 18:53:39,571 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2019-12-07 18:53:39,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:39,599 INFO L225 Difference]: With dead ends: 34130 [2019-12-07 18:53:39,599 INFO L226 Difference]: Without dead ends: 34128 [2019-12-07 18:53:39,605 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 18:53:39,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34128 states. [2019-12-07 18:53:39,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34128 to 29345. [2019-12-07 18:53:39,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29345 states. [2019-12-07 18:53:39,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29345 states to 29345 states and 41306 transitions. [2019-12-07 18:53:39,934 INFO L78 Accepts]: Start accepts. Automaton has 29345 states and 41306 transitions. Word has length 63 [2019-12-07 18:53:39,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:39,934 INFO L462 AbstractCegarLoop]: Abstraction has 29345 states and 41306 transitions. [2019-12-07 18:53:39,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 18:53:39,934 INFO L276 IsEmpty]: Start isEmpty. Operand 29345 states and 41306 transitions. [2019-12-07 18:53:39,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-12-07 18:53:39,937 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:39,937 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1] [2019-12-07 18:53:40,137 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:40,137 INFO L410 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:40,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:40,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1360130479, now seen corresponding path program 6 times [2019-12-07 18:53:40,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:40,138 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822555449] [2019-12-07 18:53:40,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:40,182 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:40,182 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822555449] [2019-12-07 18:53:40,182 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19144756] [2019-12-07 18:53:40,182 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:40,206 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-12-07 18:53:40,206 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:40,207 INFO L264 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:53:40,207 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:40,213 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:40,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:40,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-12-07 18:53:40,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839486193] [2019-12-07 18:53:40,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 18:53:40,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:40,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 18:53:40,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:53:40,214 INFO L87 Difference]: Start difference. First operand 29345 states and 41306 transitions. Second operand 9 states. [2019-12-07 18:53:40,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:40,449 INFO L93 Difference]: Finished difference Result 41880 states and 59971 transitions. [2019-12-07 18:53:40,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:53:40,450 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2019-12-07 18:53:40,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:40,480 INFO L225 Difference]: With dead ends: 41880 [2019-12-07 18:53:40,480 INFO L226 Difference]: Without dead ends: 41878 [2019-12-07 18:53:40,485 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:53:40,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41878 states. [2019-12-07 18:53:40,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41878 to 35465. [2019-12-07 18:53:40,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35465 states. [2019-12-07 18:53:40,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35465 states to 35465 states and 49718 transitions. [2019-12-07 18:53:40,869 INFO L78 Accepts]: Start accepts. Automaton has 35465 states and 49718 transitions. Word has length 63 [2019-12-07 18:53:40,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:40,869 INFO L462 AbstractCegarLoop]: Abstraction has 35465 states and 49718 transitions. [2019-12-07 18:53:40,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 18:53:40,869 INFO L276 IsEmpty]: Start isEmpty. Operand 35465 states and 49718 transitions. [2019-12-07 18:53:40,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-12-07 18:53:40,873 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:40,874 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2019-12-07 18:53:41,074 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:41,075 INFO L410 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:41,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:41,076 INFO L82 PathProgramCache]: Analyzing trace with hash -851477649, now seen corresponding path program 7 times [2019-12-07 18:53:41,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:41,076 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766902910] [2019-12-07 18:53:41,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:41,153 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:41,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766902910] [2019-12-07 18:53:41,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447367053] [2019-12-07 18:53:41,154 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:41,177 INFO L264 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:53:41,177 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:41,185 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:41,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:41,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-12-07 18:53:41,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776234588] [2019-12-07 18:53:41,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:53:41,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:41,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:53:41,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:53:41,186 INFO L87 Difference]: Start difference. First operand 35465 states and 49718 transitions. Second operand 10 states. [2019-12-07 18:53:41,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:41,424 INFO L93 Difference]: Finished difference Result 51129 states and 72397 transitions. [2019-12-07 18:53:41,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 18:53:41,425 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2019-12-07 18:53:41,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:41,477 INFO L225 Difference]: With dead ends: 51129 [2019-12-07 18:53:41,477 INFO L226 Difference]: Without dead ends: 51128 [2019-12-07 18:53:41,486 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:53:41,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51128 states. [2019-12-07 18:53:41,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51128 to 37261. [2019-12-07 18:53:41,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37261 states. [2019-12-07 18:53:42,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37261 states to 37261 states and 52271 transitions. [2019-12-07 18:53:42,023 INFO L78 Accepts]: Start accepts. Automaton has 37261 states and 52271 transitions. Word has length 65 [2019-12-07 18:53:42,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:42,023 INFO L462 AbstractCegarLoop]: Abstraction has 37261 states and 52271 transitions. [2019-12-07 18:53:42,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:53:42,023 INFO L276 IsEmpty]: Start isEmpty. Operand 37261 states and 52271 transitions. [2019-12-07 18:53:42,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-12-07 18:53:42,027 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:42,027 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 1, 1] [2019-12-07 18:53:42,228 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:42,228 INFO L410 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:42,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:42,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1457084265, now seen corresponding path program 9 times [2019-12-07 18:53:42,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:42,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047676206] [2019-12-07 18:53:42,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:42,292 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:42,292 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047676206] [2019-12-07 18:53:42,292 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470172603] [2019-12-07 18:53:42,292 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:42,320 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-12-07 18:53:42,321 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:42,321 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 18:53:42,322 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:42,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:42,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-12-07 18:53:42,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841143880] [2019-12-07 18:53:42,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 18:53:42,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:42,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 18:53:42,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:53:42,330 INFO L87 Difference]: Start difference. First operand 37261 states and 52271 transitions. Second operand 12 states. [2019-12-07 18:53:42,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:42,578 INFO L93 Difference]: Finished difference Result 49299 states and 70254 transitions. [2019-12-07 18:53:42,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 18:53:42,579 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2019-12-07 18:53:42,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:42,623 INFO L225 Difference]: With dead ends: 49299 [2019-12-07 18:53:42,623 INFO L226 Difference]: Without dead ends: 49297 [2019-12-07 18:53:42,632 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:53:42,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49297 states. [2019-12-07 18:53:43,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49297 to 42813. [2019-12-07 18:53:43,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42813 states. [2019-12-07 18:53:43,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42813 states to 42813 states and 59889 transitions. [2019-12-07 18:53:43,168 INFO L78 Accepts]: Start accepts. Automaton has 42813 states and 59889 transitions. Word has length 70 [2019-12-07 18:53:43,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:43,168 INFO L462 AbstractCegarLoop]: Abstraction has 42813 states and 59889 transitions. [2019-12-07 18:53:43,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 18:53:43,168 INFO L276 IsEmpty]: Start isEmpty. Operand 42813 states and 59889 transitions. [2019-12-07 18:53:43,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-12-07 18:53:43,172 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:43,172 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2019-12-07 18:53:43,372 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:43,373 INFO L410 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:43,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:43,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1593226108, now seen corresponding path program 6 times [2019-12-07 18:53:43,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:43,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586426834] [2019-12-07 18:53:43,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:43,466 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:43,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586426834] [2019-12-07 18:53:43,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409343238] [2019-12-07 18:53:43,466 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:43,515 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-12-07 18:53:43,515 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:43,516 INFO L264 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:53:43,518 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:43,534 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:43,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:43,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-12-07 18:53:43,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207828676] [2019-12-07 18:53:43,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 18:53:43,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:43,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 18:53:43,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:53:43,536 INFO L87 Difference]: Start difference. First operand 42813 states and 59889 transitions. Second operand 9 states. [2019-12-07 18:53:43,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:43,803 INFO L93 Difference]: Finished difference Result 59102 states and 83563 transitions. [2019-12-07 18:53:43,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:53:43,803 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2019-12-07 18:53:43,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:43,857 INFO L225 Difference]: With dead ends: 59102 [2019-12-07 18:53:43,858 INFO L226 Difference]: Without dead ends: 59101 [2019-12-07 18:53:43,868 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:53:43,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59101 states. [2019-12-07 18:53:44,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59101 to 45005. [2019-12-07 18:53:44,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45005 states. [2019-12-07 18:53:44,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45005 states to 45005 states and 62987 transitions. [2019-12-07 18:53:44,394 INFO L78 Accepts]: Start accepts. Automaton has 45005 states and 62987 transitions. Word has length 71 [2019-12-07 18:53:44,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:44,394 INFO L462 AbstractCegarLoop]: Abstraction has 45005 states and 62987 transitions. [2019-12-07 18:53:44,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 18:53:44,395 INFO L276 IsEmpty]: Start isEmpty. Operand 45005 states and 62987 transitions. [2019-12-07 18:53:44,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-12-07 18:53:44,399 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:44,399 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1] [2019-12-07 18:53:44,599 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:44,599 INFO L410 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:44,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:44,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1572566089, now seen corresponding path program 7 times [2019-12-07 18:53:44,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:44,600 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365170775] [2019-12-07 18:53:44,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:44,649 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:44,649 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365170775] [2019-12-07 18:53:44,650 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082831714] [2019-12-07 18:53:44,650 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:44,680 INFO L264 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:53:44,681 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:44,689 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:44,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:44,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-12-07 18:53:44,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022625210] [2019-12-07 18:53:44,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:53:44,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:44,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:53:44,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:53:44,690 INFO L87 Difference]: Start difference. First operand 45005 states and 62987 transitions. Second operand 10 states. [2019-12-07 18:53:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:45,070 INFO L93 Difference]: Finished difference Result 62465 states and 88920 transitions. [2019-12-07 18:53:45,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 18:53:45,070 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2019-12-07 18:53:45,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:45,122 INFO L225 Difference]: With dead ends: 62465 [2019-12-07 18:53:45,122 INFO L226 Difference]: Without dead ends: 62463 [2019-12-07 18:53:45,129 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:53:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62463 states. [2019-12-07 18:53:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62463 to 53489. [2019-12-07 18:53:45,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53489 states. [2019-12-07 18:53:45,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53489 states to 53489 states and 74598 transitions. [2019-12-07 18:53:45,729 INFO L78 Accepts]: Start accepts. Automaton has 53489 states and 74598 transitions. Word has length 72 [2019-12-07 18:53:45,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:45,729 INFO L462 AbstractCegarLoop]: Abstraction has 53489 states and 74598 transitions. [2019-12-07 18:53:45,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:53:45,729 INFO L276 IsEmpty]: Start isEmpty. Operand 53489 states and 74598 transitions. [2019-12-07 18:53:45,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-12-07 18:53:45,734 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:45,734 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2019-12-07 18:53:45,934 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:45,935 INFO L410 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:45,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:45,935 INFO L82 PathProgramCache]: Analyzing trace with hash 2147171801, now seen corresponding path program 8 times [2019-12-07 18:53:45,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:45,935 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5674278] [2019-12-07 18:53:45,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:46,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5674278] [2019-12-07 18:53:46,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302584379] [2019-12-07 18:53:46,002 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:46,025 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:53:46,025 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:46,025 INFO L264 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 18:53:46,026 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:46,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:46,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-12-07 18:53:46,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417606428] [2019-12-07 18:53:46,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 18:53:46,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:46,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 18:53:46,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 18:53:46,036 INFO L87 Difference]: Start difference. First operand 53489 states and 74598 transitions. Second operand 11 states. [2019-12-07 18:53:46,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:46,377 INFO L93 Difference]: Finished difference Result 75498 states and 106380 transitions. [2019-12-07 18:53:46,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 18:53:46,377 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2019-12-07 18:53:46,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:46,444 INFO L225 Difference]: With dead ends: 75498 [2019-12-07 18:53:46,444 INFO L226 Difference]: Without dead ends: 75497 [2019-12-07 18:53:46,457 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 18:53:46,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75497 states. [2019-12-07 18:53:47,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75497 to 55733. [2019-12-07 18:53:47,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55733 states. [2019-12-07 18:53:47,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55733 states to 55733 states and 77778 transitions. [2019-12-07 18:53:47,214 INFO L78 Accepts]: Start accepts. Automaton has 55733 states and 77778 transitions. Word has length 73 [2019-12-07 18:53:47,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:47,215 INFO L462 AbstractCegarLoop]: Abstraction has 55733 states and 77778 transitions. [2019-12-07 18:53:47,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 18:53:47,215 INFO L276 IsEmpty]: Start isEmpty. Operand 55733 states and 77778 transitions. [2019-12-07 18:53:47,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-12-07 18:53:47,220 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:47,220 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1] [2019-12-07 18:53:47,420 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:47,421 INFO L410 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:47,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:47,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1519696454, now seen corresponding path program 10 times [2019-12-07 18:53:47,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:47,422 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324952698] [2019-12-07 18:53:47,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2019-12-07 18:53:47,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324952698] [2019-12-07 18:53:47,477 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748679332] [2019-12-07 18:53:47,477 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:47,509 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 18:53:47,509 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:47,510 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 18:53:47,511 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:47,620 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:47,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 18:53:47,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [3] total 15 [2019-12-07 18:53:47,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547396259] [2019-12-07 18:53:47,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-12-07 18:53:47,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:47,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-12-07 18:53:47,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-12-07 18:53:47,621 INFO L87 Difference]: Start difference. First operand 55733 states and 77778 transitions. Second operand 13 states. [2019-12-07 18:53:47,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:47,917 INFO L93 Difference]: Finished difference Result 74113 states and 102475 transitions. [2019-12-07 18:53:47,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 18:53:47,917 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 77 [2019-12-07 18:53:47,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:47,919 INFO L225 Difference]: With dead ends: 74113 [2019-12-07 18:53:47,919 INFO L226 Difference]: Without dead ends: 1343 [2019-12-07 18:53:47,958 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-12-07 18:53:47,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2019-12-07 18:53:47,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 585. [2019-12-07 18:53:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2019-12-07 18:53:47,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 700 transitions. [2019-12-07 18:53:47,968 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 700 transitions. Word has length 77 [2019-12-07 18:53:47,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:47,968 INFO L462 AbstractCegarLoop]: Abstraction has 585 states and 700 transitions. [2019-12-07 18:53:47,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-12-07 18:53:47,968 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 700 transitions. [2019-12-07 18:53:47,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-12-07 18:53:47,969 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:47,969 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1] [2019-12-07 18:53:48,169 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:48,169 INFO L410 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:48,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:48,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1093517585, now seen corresponding path program 8 times [2019-12-07 18:53:48,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:48,170 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161919884] [2019-12-07 18:53:48,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:48,272 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:48,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161919884] [2019-12-07 18:53:48,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206846729] [2019-12-07 18:53:48,273 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:48,320 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:53:48,320 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:48,321 INFO L264 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 18:53:48,323 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:48,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:48,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-12-07 18:53:48,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497197136] [2019-12-07 18:53:48,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 18:53:48,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:48,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 18:53:48,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 18:53:48,339 INFO L87 Difference]: Start difference. First operand 585 states and 700 transitions. Second operand 11 states. [2019-12-07 18:53:48,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:48,375 INFO L93 Difference]: Finished difference Result 701 states and 822 transitions. [2019-12-07 18:53:48,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 18:53:48,375 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2019-12-07 18:53:48,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:48,376 INFO L225 Difference]: With dead ends: 701 [2019-12-07 18:53:48,376 INFO L226 Difference]: Without dead ends: 587 [2019-12-07 18:53:48,376 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 18:53:48,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2019-12-07 18:53:48,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 481. [2019-12-07 18:53:48,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2019-12-07 18:53:48,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 563 transitions. [2019-12-07 18:53:48,382 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 563 transitions. Word has length 81 [2019-12-07 18:53:48,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:48,382 INFO L462 AbstractCegarLoop]: Abstraction has 481 states and 563 transitions. [2019-12-07 18:53:48,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 18:53:48,382 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 563 transitions. [2019-12-07 18:53:48,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-12-07 18:53:48,383 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:48,383 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2019-12-07 18:53:48,584 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:48,584 INFO L410 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:48,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:48,584 INFO L82 PathProgramCache]: Analyzing trace with hash -944170313, now seen corresponding path program 7 times [2019-12-07 18:53:48,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:48,585 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64035857] [2019-12-07 18:53:48,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:48,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64035857] [2019-12-07 18:53:48,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511434785] [2019-12-07 18:53:48,635 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:48,660 INFO L264 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:53:48,661 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:48,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:48,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-12-07 18:53:48,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075364916] [2019-12-07 18:53:48,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:53:48,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:48,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:53:48,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:53:48,672 INFO L87 Difference]: Start difference. First operand 481 states and 563 transitions. Second operand 10 states. [2019-12-07 18:53:48,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:48,710 INFO L93 Difference]: Finished difference Result 546 states and 639 transitions. [2019-12-07 18:53:48,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 18:53:48,711 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2019-12-07 18:53:48,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:48,711 INFO L225 Difference]: With dead ends: 546 [2019-12-07 18:53:48,711 INFO L226 Difference]: Without dead ends: 379 [2019-12-07 18:53:48,711 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:53:48,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-12-07 18:53:48,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-12-07 18:53:48,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-12-07 18:53:48,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 417 transitions. [2019-12-07 18:53:48,716 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 417 transitions. Word has length 81 [2019-12-07 18:53:48,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:48,716 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 417 transitions. [2019-12-07 18:53:48,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:53:48,716 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 417 transitions. [2019-12-07 18:53:48,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-12-07 18:53:48,717 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:48,717 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2019-12-07 18:53:48,918 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:48,918 INFO L410 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:48,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:48,918 INFO L82 PathProgramCache]: Analyzing trace with hash -2010450365, now seen corresponding path program 9 times [2019-12-07 18:53:48,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:48,919 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009305674] [2019-12-07 18:53:48,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:48,984 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:48,984 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009305674] [2019-12-07 18:53:48,984 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989184660] [2019-12-07 18:53:48,984 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:49,013 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-12-07 18:53:49,013 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:49,014 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 18:53:49,014 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:49,025 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:49,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:49,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-12-07 18:53:49,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183624599] [2019-12-07 18:53:49,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 18:53:49,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:49,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 18:53:49,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:53:49,026 INFO L87 Difference]: Start difference. First operand 379 states and 417 transitions. Second operand 12 states. [2019-12-07 18:53:49,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:49,049 INFO L93 Difference]: Finished difference Result 464 states and 501 transitions. [2019-12-07 18:53:49,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 18:53:49,049 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2019-12-07 18:53:49,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:49,050 INFO L225 Difference]: With dead ends: 464 [2019-12-07 18:53:49,050 INFO L226 Difference]: Without dead ends: 397 [2019-12-07 18:53:49,050 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:53:49,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-12-07 18:53:49,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 306. [2019-12-07 18:53:49,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-12-07 18:53:49,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 344 transitions. [2019-12-07 18:53:49,054 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 344 transitions. Word has length 81 [2019-12-07 18:53:49,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:49,054 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 344 transitions. [2019-12-07 18:53:49,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 18:53:49,054 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 344 transitions. [2019-12-07 18:53:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-12-07 18:53:49,054 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:49,054 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1] [2019-12-07 18:53:49,255 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:49,255 INFO L410 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:49,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:49,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1856106743, now seen corresponding path program 9 times [2019-12-07 18:53:49,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:49,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181887328] [2019-12-07 18:53:49,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:49,336 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:49,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181887328] [2019-12-07 18:53:49,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683644952] [2019-12-07 18:53:49,336 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:49,366 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-12-07 18:53:49,366 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:49,367 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 18:53:49,367 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:49,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:49,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-12-07 18:53:49,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122827807] [2019-12-07 18:53:49,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 18:53:49,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:49,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 18:53:49,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:53:49,377 INFO L87 Difference]: Start difference. First operand 306 states and 344 transitions. Second operand 12 states. [2019-12-07 18:53:49,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:49,400 INFO L93 Difference]: Finished difference Result 319 states and 357 transitions. [2019-12-07 18:53:49,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 18:53:49,400 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2019-12-07 18:53:49,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:49,400 INFO L225 Difference]: With dead ends: 319 [2019-12-07 18:53:49,401 INFO L226 Difference]: Without dead ends: 242 [2019-12-07 18:53:49,401 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:53:49,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-12-07 18:53:49,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 222. [2019-12-07 18:53:49,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-12-07 18:53:49,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 260 transitions. [2019-12-07 18:53:49,404 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 260 transitions. Word has length 90 [2019-12-07 18:53:49,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:49,404 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 260 transitions. [2019-12-07 18:53:49,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 18:53:49,404 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 260 transitions. [2019-12-07 18:53:49,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-12-07 18:53:49,404 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:49,404 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2019-12-07 18:53:49,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:49,605 INFO L410 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:49,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:49,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1359938858, now seen corresponding path program 8 times [2019-12-07 18:53:49,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:49,606 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493214255] [2019-12-07 18:53:49,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:49,666 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:49,666 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493214255] [2019-12-07 18:53:49,667 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710166971] [2019-12-07 18:53:49,667 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:49,693 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:53:49,693 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:49,694 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 18:53:49,694 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:49,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:49,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-12-07 18:53:49,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23439241] [2019-12-07 18:53:49,707 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 18:53:49,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:49,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 18:53:49,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 18:53:49,707 INFO L87 Difference]: Start difference. First operand 222 states and 260 transitions. Second operand 11 states. [2019-12-07 18:53:49,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:49,731 INFO L93 Difference]: Finished difference Result 243 states and 280 transitions. [2019-12-07 18:53:49,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 18:53:49,731 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2019-12-07 18:53:49,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:49,731 INFO L225 Difference]: With dead ends: 243 [2019-12-07 18:53:49,731 INFO L226 Difference]: Without dead ends: 102 [2019-12-07 18:53:49,732 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-12-07 18:53:49,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-12-07 18:53:49,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-12-07 18:53:49,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-12-07 18:53:49,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 101 transitions. [2019-12-07 18:53:49,733 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 101 transitions. Word has length 91 [2019-12-07 18:53:49,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:49,733 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 101 transitions. [2019-12-07 18:53:49,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 18:53:49,734 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 101 transitions. [2019-12-07 18:53:49,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-12-07 18:53:49,734 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:53:49,734 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2019-12-07 18:53:49,934 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:49,934 INFO L410 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 18:53:49,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:53:49,935 INFO L82 PathProgramCache]: Analyzing trace with hash -498811939, now seen corresponding path program 9 times [2019-12-07 18:53:49,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:53:49,935 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320770867] [2019-12-07 18:53:49,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:53:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:53:50,006 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:50,006 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320770867] [2019-12-07 18:53:50,007 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104864505] [2019-12-07 18:53:50,007 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:50,040 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-12-07 18:53:50,040 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:53:50,041 INFO L264 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 18:53:50,042 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:53:50,071 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:53:50,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:53:50,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-12-07 18:53:50,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906900757] [2019-12-07 18:53:50,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 18:53:50,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:53:50,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 18:53:50,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:53:50,072 INFO L87 Difference]: Start difference. First operand 102 states and 101 transitions. Second operand 12 states. [2019-12-07 18:53:50,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:53:50,089 INFO L93 Difference]: Finished difference Result 102 states and 101 transitions. [2019-12-07 18:53:50,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 18:53:50,090 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2019-12-07 18:53:50,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:53:50,090 INFO L225 Difference]: With dead ends: 102 [2019-12-07 18:53:50,090 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:53:50,090 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:53:50,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:53:50,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:53:50,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:53:50,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:53:50,091 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-12-07 18:53:50,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:53:50,091 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:53:50,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 18:53:50,091 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:53:50,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:53:50,292 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:53:50,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:54:08,987 WARN L192 SmtUtils]: Spent 18.68 s on a formula simplification. DAG size of input: 2170 DAG size of output: 1834 [2019-12-07 18:55:06,040 WARN L192 SmtUtils]: Spent 57.03 s on a formula simplification. DAG size of input: 1797 DAG size of output: 328 [2019-12-07 18:55:06,044 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point L23(lines 23 31) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point L19-2(lines 19 33) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-12-07 18:55:06,045 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-12-07 18:55:06,046 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 18:55:06,046 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:55:06,046 INFO L246 CegarLoopResult]: For program point L29(lines 29 31) no Hoare annotation was computed. [2019-12-07 18:55:06,046 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-12-07 18:55:06,046 INFO L246 CegarLoopResult]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-12-07 18:55:06,046 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-12-07 18:55:06,046 INFO L249 CegarLoopResult]: At program point L34(lines 13 35) the Hoare annotation is: true [2019-12-07 18:55:06,046 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-12-07 18:55:06,046 INFO L246 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2019-12-07 18:55:06,046 INFO L246 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-12-07 18:55:06,046 INFO L246 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2019-12-07 18:55:06,046 INFO L246 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-12-07 18:55:06,046 INFO L246 CegarLoopResult]: For program point L22(lines 22 32) no Hoare annotation was computed. [2019-12-07 18:55:06,048 INFO L242 CegarLoopResult]: At program point L22-1(lines 19 33) the Hoare annotation is: (let ((.cse14 (<= 0 (+ ULTIMATE.start_main_~x~0 2))) (.cse42 (<= ULTIMATE.start_main_~x~0 2)) (.cse32 (<= 9 ULTIMATE.start_main_~i~0)) (.cse12 (<= 0 ULTIMATE.start_main_~y~0)) (.cse9 (<= ULTIMATE.start_main_~x~0 1)) (.cse11 (<= 0 ULTIMATE.start_main_~x~0)) (.cse19 (<= 0 (+ ULTIMATE.start_main_~x~0 1))) (.cse0 (<= ULTIMATE.start_main_~y~0 0)) (.cse1 (<= ULTIMATE.start_main_~N~0 10)) (.cse2 (<= ULTIMATE.start_main_~x~0 0)) (.cse3 (<= 8 ULTIMATE.start_main_~i~0)) (.cse48 (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648)))) (let ((.cse46 (or (and .cse0 .cse1 .cse9 .cse3 .cse48 .cse11) (and .cse19 .cse0 .cse1 .cse2 .cse3 .cse48))) (.cse18 (<= 1 ULTIMATE.start_main_~i~0)) (.cse39 (<= ULTIMATE.start_main_~x~0 9)) (.cse50 (or (and .cse32 .cse1 .cse9 .cse11 .cse12) (and .cse32 .cse19 .cse1 .cse2 .cse12))) (.cse51 (<= ULTIMATE.start_main_~y~0 8)) (.cse41 (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) (.cse23 (<= 0 (+ ULTIMATE.start_main_~x~0 5))) (.cse49 (or (and .cse32 .cse0 .cse1 .cse14 .cse2 .cse48) (and .cse32 .cse0 .cse1 .cse48 .cse42 .cse11))) (.cse47 (<= 0 (+ ULTIMATE.start_main_~y~0 7))) (.cse29 (<= 4 ULTIMATE.start_main_~i~0)) (.cse40 (<= ULTIMATE.start_main_~y~0 5)) (.cse37 (<= ULTIMATE.start_main_~x~0 3)) (.cse34 (<= 3 ULTIMATE.start_main_~i~0)) (.cse36 (<= 0 (+ ULTIMATE.start_main_~x~0 8))) (.cse35 (<= 0 (+ ULTIMATE.start_main_~y~0 3))) (.cse17 (<= ULTIMATE.start_main_~x~0 6)) (.cse16 (<= 0 (+ ULTIMATE.start_main_~y~0 4))) (.cse31 (<= ULTIMATE.start_main_~x~0 5)) (.cse26 (<= ULTIMATE.start_main_~x~0 4)) (.cse6 (<= 0 (+ ULTIMATE.start_main_~y~0 2))) (.cse25 (<= 0 (+ ULTIMATE.start_main_~y~0 6))) (.cse20 (<= ULTIMATE.start_main_~y~0 1)) (.cse44 (<= ULTIMATE.start_main_~x~0 8)) (.cse22 (<= 6 ULTIMATE.start_main_~i~0)) (.cse27 (<= ULTIMATE.start_main_~y~0 6)) (.cse7 (<= 0 (+ ULTIMATE.start_main_~x~0 6))) (.cse13 (<= 2 ULTIMATE.start_main_~i~0)) (.cse33 (<= 0 (+ ULTIMATE.start_main_~y~0 5))) (.cse30 (<= 7 ULTIMATE.start_main_~i~0)) (.cse45 (<= ULTIMATE.start_main_~y~0 7)) (.cse24 (<= ULTIMATE.start_main_~y~0 3)) (.cse4 (<= 0 (+ ULTIMATE.start_main_~x~0 7))) (.cse15 (<= 10 ULTIMATE.start_main_~i~0)) (.cse21 (<= 0 (+ ULTIMATE.start_main_~x~0 4))) (.cse8 (<= ULTIMATE.start_main_~y~0 4)) (.cse43 (<= ULTIMATE.start_main_~y~0 2)) (.cse28 (<= 0 (+ ULTIMATE.start_main_~x~0 3))) (.cse10 (<= 5 ULTIMATE.start_main_~i~0)) (.cse38 (<= ULTIMATE.start_main_~x~0 7)) (.cse5 (<= 0 (+ ULTIMATE.start_main_~y~0 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse10 .cse11 .cse12) (and .cse0 .cse1 .cse13 .cse14 .cse2 .cse12) (and .cse15 .cse16 .cse0 .cse1 .cse11 .cse17) (and (or (and .cse18 .cse0 .cse1 .cse9 .cse11) (and .cse18 .cse19 .cse0 .cse1 .cse2) (and .cse18 .cse20 .cse1 .cse2 .cse11)) .cse12) (and .cse21 .cse0 .cse1 .cse2 .cse6 .cse22) (and .cse23 .cse1 .cse24 .cse2 .cse3 .cse12) (and .cse0 .cse25 .cse1 .cse2 .cse22 .cse11) (and .cse15 .cse26 .cse1 .cse11 .cse12 .cse27) (and .cse20 .cse26 .cse1 .cse10 .cse11 .cse12) (and .cse1 .cse2 .cse22 .cse12 .cse11 .cse27) (and .cse0 .cse1 .cse2 .cse6 .cse28 .cse10) (and .cse20 (or (and .cse19 .cse1 .cse13 .cse2 .cse12) (and .cse1 .cse9 .cse13 .cse11 .cse12))) (and .cse20 .cse1 .cse2 .cse28 .cse29 .cse12) (and .cse0 .cse1 .cse30 .cse6 .cse31 .cse11) (and .cse32 .cse16 .cse0 .cse23 .cse1 .cse2) (and .cse32 .cse1 .cse24 .cse11 .cse12 .cse17) (and .cse32 .cse21 .cse0 .cse1 .cse2 .cse33) (and .cse34 .cse1 .cse24 .cse2 .cse11 .cse12) (and .cse0 .cse23 .cse1 .cse2 .cse3 .cse35) (and .cse0 .cse1 .cse10 .cse31 .cse11 .cse12) (and .cse0 .cse1 .cse2 .cse11 .cse12 (<= 0 ULTIMATE.start_main_~i~0)) (and .cse32 .cse8 .cse1 .cse31 .cse11 .cse12) (and .cse32 .cse0 .cse1 .cse2 .cse36 .cse5) (and .cse37 .cse8 .cse1 .cse30 .cse11 .cse12) (and .cse0 .cse23 .cse1 .cse2 .cse10 .cse12) (and .cse20 .cse34 .cse1 .cse14 .cse2 .cse12) (and .cse0 .cse34 .cse1 .cse2 .cse28 .cse12) (and .cse0 .cse1 .cse38 .cse30 .cse11 .cse12) (and .cse32 .cse0 .cse39 .cse1 .cse11 .cse12) (and .cse21 .cse0 .cse1 .cse2 .cse10 .cse5) (and .cse0 .cse1 .cse30 .cse5 .cse11 .cse17) (and .cse32 .cse26 .cse0 .cse1 .cse33 .cse11) (and .cse0 .cse25 .cse1 .cse30 .cse9 .cse11) (and .cse40 .cse1 .cse2 .cse3 .cse28 .cse12) (and .cse15 .cse21 .cse0 .cse25 .cse1 .cse2) (and .cse8 .cse1 .cse2 .cse29 .cse11 .cse12) (and .cse15 .cse41 .cse0 .cse1 .cse2 .cse5) (and .cse40 .cse15 .cse1 .cse31 .cse11 .cse12) (and .cse0 (or (and .cse19 .cse1 .cse2 .cse22) (and .cse1 .cse9 .cse22 .cse11)) .cse33) (and .cse20 .cse1 .cse31 .cse22 .cse11 .cse12) (and .cse26 .cse0 .cse1 .cse29 .cse11 .cse12) (and .cse8 .cse1 .cse30 .cse2 .cse28 .cse12) (and .cse19 .cse1 .cse24 .cse2 .cse29 .cse12) (and .cse20 .cse1 .cse30 .cse2 .cse7 .cse12) (and .cse0 .cse1 .cse30 .cse2 .cse7 .cse5) (and .cse15 .cse26 .cse0 .cse25 .cse1 .cse11) (and .cse0 .cse1 .cse6 .cse42 .cse29 .cse11) (and .cse35 (or (and .cse0 .cse1 .cse9 .cse29 .cse11) (and .cse19 .cse0 .cse1 .cse2 .cse29))) (and .cse21 .cse16 .cse0 .cse1 .cse2 .cse3) (and .cse15 .cse1 .cse42 .cse11 .cse12) (and .cse15 .cse0 .cse1 .cse2 .cse6 .cse36) (and .cse1 .cse24 .cse42 .cse10 .cse11 .cse12) (and .cse37 .cse32 .cse1 .cse11 .cse12 .cse27) (and .cse1 .cse24 .cse2 .cse28 .cse22 .cse12) (and .cse15 .cse0 .cse1 .cse11 .cse12) (and .cse26 .cse16 .cse0 .cse1 .cse3 .cse11) (and .cse32 .cse0 .cse1 .cse2 .cse6 .cse4) (and .cse40 .cse19 .cse1 .cse2 .cse22 .cse12) (and .cse0 .cse1 .cse42 .cse10 .cse35 .cse11) (and (or (and .cse19 .cse1 .cse30 .cse2 .cse12) (and .cse1 .cse30 .cse9 .cse11 .cse12)) .cse27) (and .cse43 .cse26 .cse1 .cse22 .cse11 .cse12) (and .cse32 .cse0 .cse38 .cse1 .cse6 .cse11) (and .cse40 .cse1 .cse9 .cse22 .cse11 .cse12) (and .cse26 .cse0 .cse1 .cse10 .cse5 .cse11) (and .cse0 .cse1 .cse2 .cse28 .cse35 .cse22) (and .cse15 .cse44 .cse43 .cse1 .cse11 .cse12) (and .cse32 .cse1 .cse14 .cse2 .cse12 .cse45) (and .cse8 .cse1 .cse14 .cse2 .cse22 .cse12) (and .cse0 .cse1 .cse2 .cse28 .cse29 .cse5) (and .cse0 .cse34 .cse1 .cse42 .cse5 .cse11) (and .cse15 .cse1 .cse2 .cse28 .cse12 .cse45) (and .cse32 .cse20 .cse1 .cse2 .cse36 .cse12) (and .cse32 .cse0 .cse1 .cse2 .cse35 .cse7) (and .cse15 .cse20 .cse1 .cse39 .cse11 .cse12) (and .cse1 .cse14 .cse2 .cse3 .cse12 .cse27) (and .cse16 .cse0 .cse1 .cse42 .cse22 .cse11) (and .cse26 .cse0 .cse1 .cse30 .cse35 .cse11) (and (or (and .cse0 .cse1 .cse30 .cse14 .cse2) (and .cse0 .cse1 .cse30 .cse42 .cse11)) .cse33) (and (<= 0 (+ ULTIMATE.start_main_~y~0 8)) .cse46 .cse11) (and .cse19 .cse0 .cse25 .cse1 .cse30 .cse2) (and .cse15 .cse38 .cse1 .cse24 .cse11 .cse12) (and .cse16 .cse0 .cse1 .cse2 .cse29 .cse11) (and .cse0 (or (and .cse19 .cse1 .cse13 .cse2) (and .cse1 .cse9 .cse13 .cse11)) .cse5) (and .cse37 .cse40 .cse1 .cse3 .cse11 .cse12) (and .cse37 .cse43 .cse1 .cse10 .cse11 .cse12) (and .cse15 .cse16 .cse0 .cse1 .cse2 .cse7) (and .cse0 .cse23 .cse1 .cse2 .cse22 .cse5) (and .cse1 .cse24 .cse9 .cse29 .cse11 .cse12) (and .cse47 .cse46) (and .cse21 .cse0 .cse1 .cse30 .cse2 .cse35) (and .cse20 .cse38 .cse1 .cse3 .cse11 .cse12) (and .cse37 .cse15 .cse0 .cse1 .cse48 .cse11) (and .cse0 .cse23 .cse1 .cse30 .cse2 .cse6) (and .cse37 .cse0 .cse1 .cse3 .cse33 .cse11) (and .cse43 .cse23 .cse1 .cse30 .cse2 .cse12) (and .cse0 .cse25 .cse1 .cse14 .cse2 .cse3) (and .cse32 .cse40 .cse21 .cse1 .cse2 .cse12) (and .cse32 .cse40 .cse26 .cse1 .cse11 .cse12) (and .cse40 .cse1 .cse30 .cse14 .cse2 .cse12) (and .cse21 .cse0 .cse1 .cse2 .cse29 .cse12) (and .cse20 .cse1 .cse30 .cse11 .cse12 .cse17) (and .cse16 .cse0 .cse1 .cse30 .cse2 .cse28) (and .cse18 .cse0 .cse1 .cse2 .cse5 .cse11) (and (<= 0 (+ ULTIMATE.start_main_~y~0 9)) .cse19 .cse49) (and .cse0 .cse1 .cse14 .cse2 .cse6 .cse29) (and .cse43 .cse19 .cse34 .cse1 .cse2 .cse12) (and .cse0 .cse1 .cse13 .cse42 .cse11 .cse12) (and .cse15 .cse0 .cse1 .cse2 .cse48 .cse28) (and .cse37 .cse0 .cse1 .cse29 .cse5 .cse11) (and .cse15 .cse0 .cse1 .cse39 .cse5 .cse11) (and (<= ULTIMATE.start_main_~y~0 9) .cse50 .cse11) (and .cse0 .cse1 .cse31 .cse22 .cse5 .cse11) (and .cse32 .cse43 .cse38 .cse1 .cse11 .cse12) (and .cse43 .cse1 .cse42 .cse29 .cse11 .cse12) (and .cse20 .cse1 .cse2 .cse3 .cse4 .cse12) (and .cse15 .cse0 .cse1 .cse2 .cse35 .cse4) (and .cse8 .cse1 .cse42 .cse22 .cse11 .cse12) (and .cse37 .cse15 .cse1 .cse11 .cse12 .cse45) (and .cse0 .cse1 .cse13 .cse6 .cse2 .cse11) (and .cse15 .cse0 .cse1 .cse31 .cse33 .cse11) (and .cse19 .cse8 .cse1 .cse2 .cse10 .cse12) (and .cse0 .cse1 .cse3 .cse35 .cse31 .cse11) (and .cse26 .cse1 .cse24 .cse30 .cse11 .cse12) (and .cse26 .cse8 .cse1 .cse3 .cse11 .cse12) (and .cse44 .cse0 .cse1 .cse3 .cse11 .cse12) (and .cse15 .cse0 .cse38 .cse1 .cse35 .cse11) (and .cse50 .cse51) (and .cse0 .cse34 .cse1 .cse2 .cse35 .cse11) (and .cse16 .cse0 .cse1 .cse9 .cse10 .cse11) (and .cse37 .cse20 .cse1 .cse29 .cse11 .cse12) (and .cse15 .cse44 .cse0 .cse1 .cse6 .cse11) (and .cse43 .cse1 .cse3 .cse11 .cse12 .cse17) (and .cse40 .cse15 .cse23 .cse1 .cse2 .cse12) (and .cse0 .cse1 .cse30 .cse2 .cse47 .cse11) (and .cse1 .cse3 .cse2 .cse51 .cse12 .cse11) (and .cse32 .cse8 .cse23 .cse1 .cse2 .cse12) (and .cse37 .cse0 .cse1 .cse35 .cse22 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse36 .cse12) (and .cse21 .cse1 .cse24 .cse30 .cse2 .cse12) (and .cse20 .cse23 .cse1 .cse2 .cse22 .cse12) (and .cse15 .cse20 .cse41 .cse1 .cse2 .cse12) (and .cse37 .cse16 .cse0 .cse1 .cse30 .cse11) (and .cse40 .cse1 .cse2 .cse10 .cse11 .cse12) (and .cse0 .cse6 (or (and .cse19 .cse34 .cse1 .cse2) (and .cse34 .cse1 .cse9 .cse11))) (and .cse0 .cse1 .cse2 .cse10 .cse33 .cse11) (and .cse37 .cse0 .cse34 .cse1 .cse11 .cse12) (and .cse32 .cse0 .cse1 .cse2 (<= 0 (+ ULTIMATE.start_main_~x~0 9)) .cse12) (and .cse15 .cse0 .cse23 .cse1 .cse2 .cse33) (and .cse16 .cse0 .cse1 .cse14 .cse2 .cse22) (and .cse43 .cse34 .cse1 .cse9 .cse11 .cse12) (and .cse49 .cse47) (and .cse0 .cse34 .cse1 .cse14 .cse2 .cse5) (and .cse43 .cse1 .cse14 .cse2 .cse29 .cse12) (and .cse19 .cse16 .cse0 .cse1 .cse2 .cse10) (and .cse0 .cse1 .cse3 .cse6 .cse11 .cse17) (and .cse43 .cse1 .cse2 .cse3 .cse7 .cse12) (and .cse32 .cse43 .cse1 .cse2 .cse4 .cse12) (and .cse20 .cse21 .cse1 .cse2 .cse10 .cse12) (and .cse32 .cse44 .cse0 .cse1 .cse5 .cse11) (and .cse32 .cse0 .cse25 .cse1 .cse2 .cse28) (and .cse37 .cse32 .cse0 .cse25 .cse1 .cse11) (and .cse40 .cse1 .cse30 .cse42 .cse11 .cse12) (and .cse1 .cse24 .cse3 .cse31 .cse11 .cse12) (and .cse43 .cse21 .cse1 .cse2 .cse22 .cse12) (and .cse37 .cse1 .cse24 .cse22 .cse11 .cse12) (and (or (and .cse1 .cse9 .cse3 .cse11 .cse12) (and .cse19 .cse1 .cse2 .cse3 .cse12)) .cse45) (and .cse15 .cse8 .cse1 .cse11 .cse12 .cse17) (and .cse37 .cse0 .cse1 .cse6 .cse10 .cse11) (and .cse20 .cse34 .cse1 .cse42 .cse11 .cse12) (and .cse0 .cse1 .cse14 .cse2 .cse10 .cse35) (and .cse15 .cse43 .cse1 .cse2 .cse36 .cse12) (and .cse43 .cse1 .cse30 .cse31 .cse11 .cse12) (and .cse0 .cse1 .cse22 .cse11 .cse12 .cse17) (and .cse15 .cse8 .cse1 .cse2 .cse7 .cse12) (and .cse15 .cse21 .cse1 .cse2 .cse12 .cse27) (and .cse32 .cse0 .cse1 .cse35 .cse11 .cse17) (and .cse32 .cse16 .cse0 .cse1 .cse31 .cse11) (and .cse26 .cse0 .cse1 .cse6 .cse22 .cse11) (and .cse32 .cse1 .cse2 .cse28 .cse12 .cse27) (and .cse0 .cse25 .cse1 .cse3 .cse42 .cse11) (and .cse32 .cse20 .cse44 .cse1 .cse11 .cse12) (and .cse0 .cse1 .cse2 .cse7 .cse22 .cse12) (and .cse1 .cse3 .cse42 .cse11 .cse12 .cse27) (and .cse32 .cse1 .cse24 .cse2 .cse7 .cse12) (and .cse0 .cse1 .cse30 .cse2 .cse4 .cse12) (and .cse43 .cse1 .cse13 .cse2 .cse11 .cse12) (and .cse0 .cse1 .cse2 .cse3 .cse28 .cse33) (and .cse1 .cse24 .cse14 .cse2 .cse10 .cse12) (and .cse1 .cse30 .cse2 .cse12 .cse11 .cse45) (and .cse32 .cse1 .cse42 .cse11 .cse12 .cse45) (and .cse15 .cse1 .cse24 .cse2 .cse4 .cse12) (and .cse15 .cse1 .cse14 .cse2 .cse12) (and .cse21 .cse8 .cse1 .cse2 .cse3 .cse12) (and .cse43 .cse1 .cse2 .cse28 .cse10 .cse12) (and .cse0 .cse38 .cse1 .cse3 .cse5 .cse11)))) [2019-12-07 18:55:06,048 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-12-07 18:55:06,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:55:06 BoogieIcfgContainer [2019-12-07 18:55:06,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:55:06,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:55:06,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:55:06,099 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:55:06,099 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:53:26" (3/4) ... [2019-12-07 18:55:06,101 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:55:06,109 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 18:55:06,109 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 18:55:06,145 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6884d3cf-5c7d-42ca-b2b7-efd0b13b34cc/bin/uautomizer/witness.graphml [2019-12-07 18:55:06,145 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:55:06,146 INFO L168 Benchmark]: Toolchain (without parser) took 100288.09 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.2 GB). Free memory was 940.7 MB in the beginning and 1.5 GB in the end (delta: -557.4 MB). Peak memory consumption was 655.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:06,147 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:55:06,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:06,147 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.16 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:55:06,147 INFO L168 Benchmark]: Boogie Preprocessor took 12.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:55:06,147 INFO L168 Benchmark]: RCFGBuilder took 157.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:06,148 INFO L168 Benchmark]: TraceAbstraction took 99871.87 ms. Allocated memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: 1.1 GB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -463.6 MB). Peak memory consumption was 2.8 GB. Max. memory is 11.5 GB. [2019-12-07 18:55:06,148 INFO L168 Benchmark]: Witness Printer took 46.93 ms. Allocated memory is still 2.2 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:06,149 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.16 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 157.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 99871.87 ms. Allocated memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: 1.1 GB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -463.6 MB). Peak memory consumption was 2.8 GB. Max. memory is 11.5 GB. * Witness Printer took 46.93 ms. Allocated memory is still 2.2 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 7) && 0 <= y + 1) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2) && 0 <= x + 6)) || (((((y <= 4 && N <= 10) && x <= 1) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && 0 <= x) && x <= 6)) || (((((((1 <= i && y <= 0) && N <= 10) && x <= 1) && 0 <= x) || ((((1 <= i && 0 <= x + 1) && y <= 0) && N <= 10) && x <= 0)) || ((((1 <= i && y <= 1) && N <= 10) && x <= 0) && 0 <= x)) && 0 <= y)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 6 <= i)) || (((((0 <= x + 5 && N <= 10) && y <= 3) && x <= 0) && 8 <= i) && 0 <= y)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && x <= 0) && 6 <= i) && 0 <= x)) || (((((10 <= i && x <= 4) && N <= 10) && 0 <= x) && 0 <= y) && y <= 6)) || (((((y <= 1 && x <= 4) && N <= 10) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((N <= 10 && x <= 0) && 6 <= i) && 0 <= y) && 0 <= x) && y <= 6)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 3) && 5 <= i)) || (y <= 1 && (((((0 <= x + 1 && N <= 10) && 2 <= i) && x <= 0) && 0 <= y) || ((((N <= 10 && x <= 1) && 2 <= i) && 0 <= x) && 0 <= y)))) || (((((y <= 1 && N <= 10) && x <= 0) && 0 <= x + 3) && 4 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && 0 <= y + 2) && x <= 5) && 0 <= x)) || (((((9 <= i && 0 <= y + 4) && y <= 0) && 0 <= x + 5) && N <= 10) && x <= 0)) || (((((9 <= i && N <= 10) && y <= 3) && 0 <= x) && 0 <= y) && x <= 6)) || (((((9 <= i && 0 <= x + 4) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 5)) || (((((3 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x) && 0 <= y)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 3)) || (((((y <= 0 && N <= 10) && 5 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x) && 0 <= y) && 0 <= i)) || (((((9 <= i && y <= 4) && N <= 10) && x <= 5) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y + 1)) || (((((x <= 3 && y <= 4) && N <= 10) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || (((((y <= 1 && 3 <= i) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 7) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && x <= 9) && N <= 10) && 0 <= x) && 0 <= y)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y + 1)) || (((((y <= 0 && N <= 10) && 7 <= i) && 0 <= y + 1) && 0 <= x) && x <= 6)) || (((((9 <= i && x <= 4) && y <= 0) && N <= 10) && 0 <= y + 5) && 0 <= x)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 7 <= i) && x <= 1) && 0 <= x)) || (((((y <= 5 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 3) && 0 <= y)) || (((((10 <= i && 0 <= x + 4) && y <= 0) && 0 <= y + 6) && N <= 10) && x <= 0)) || (((((y <= 4 && N <= 10) && x <= 0) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && 0 <= x + 2147483648) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 1)) || (((((y <= 5 && 10 <= i) && N <= 10) && x <= 5) && 0 <= x) && 0 <= y)) || ((y <= 0 && ((((0 <= x + 1 && N <= 10) && x <= 0) && 6 <= i) || (((N <= 10 && x <= 1) && 6 <= i) && 0 <= x))) && 0 <= y + 5)) || (((((y <= 1 && N <= 10) && x <= 5) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 4 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 3) && 0 <= y)) || (((((0 <= x + 1 && N <= 10) && y <= 3) && x <= 0) && 4 <= i) && 0 <= y)) || (((((y <= 1 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 6) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 6) && 0 <= y + 1)) || (((((10 <= i && x <= 4) && y <= 0) && 0 <= y + 6) && N <= 10) && 0 <= x)) || (((((y <= 0 && N <= 10) && 0 <= y + 2) && x <= 2) && 4 <= i) && 0 <= x)) || (0 <= y + 3 && (((((y <= 0 && N <= 10) && x <= 1) && 4 <= i) && 0 <= x) || ((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 4 <= i)))) || (((((0 <= x + 4 && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 8 <= i)) || ((((10 <= i && N <= 10) && x <= 2) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 8)) || (((((N <= 10 && y <= 3) && x <= 2) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 3 && 9 <= i) && N <= 10) && 0 <= x) && 0 <= y) && y <= 6)) || (((((N <= 10 && y <= 3) && x <= 0) && 0 <= x + 3) && 6 <= i) && 0 <= y)) || ((((10 <= i && y <= 0) && N <= 10) && 0 <= x) && 0 <= y)) || (((((x <= 4 && 0 <= y + 4) && y <= 0) && N <= 10) && 8 <= i) && 0 <= x)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 7)) || (((((y <= 5 && 0 <= x + 1) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 2) && 5 <= i) && 0 <= y + 3) && 0 <= x)) || ((((((0 <= x + 1 && N <= 10) && 7 <= i) && x <= 0) && 0 <= y) || ((((N <= 10 && 7 <= i) && x <= 1) && 0 <= x) && 0 <= y)) && y <= 6)) || (((((y <= 2 && x <= 4) && N <= 10) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && x <= 7) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((y <= 5 && N <= 10) && x <= 1) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 5 <= i) && 0 <= y + 1) && 0 <= x)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y + 3) && 6 <= i)) || (((((10 <= i && x <= 8) && y <= 2) && N <= 10) && 0 <= x) && 0 <= y)) || (((((9 <= i && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y) && y <= 7)) || (((((y <= 4 && N <= 10) && 0 <= x + 2) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 3) && 4 <= i) && 0 <= y + 1)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 2) && 0 <= y + 1) && 0 <= x)) || (((((10 <= i && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y) && y <= 7)) || (((((9 <= i && y <= 1) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x + 6)) || (((((10 <= i && y <= 1) && N <= 10) && x <= 9) && 0 <= x) && 0 <= y)) || (((((N <= 10 && 0 <= x + 2) && x <= 0) && 8 <= i) && 0 <= y) && y <= 6)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 2) && 6 <= i) && 0 <= x)) || (((((x <= 4 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 3) && 0 <= x)) || ((((((y <= 0 && N <= 10) && 7 <= i) && 0 <= x + 2) && x <= 0) || ((((y <= 0 && N <= 10) && 7 <= i) && x <= 2) && 0 <= x)) && 0 <= y + 5)) || ((0 <= y + 8 && ((((((y <= 0 && N <= 10) && x <= 1) && 8 <= i) && 0 <= y + 2147483648) && 0 <= x) || (((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2147483648))) && 0 <= x)) || (((((0 <= x + 1 && y <= 0) && 0 <= y + 6) && N <= 10) && 7 <= i) && x <= 0)) || (((((10 <= i && x <= 7) && N <= 10) && y <= 3) && 0 <= x) && 0 <= y)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) && 0 <= x)) || ((y <= 0 && ((((0 <= x + 1 && N <= 10) && 2 <= i) && x <= 0) || (((N <= 10 && x <= 1) && 2 <= i) && 0 <= x))) && 0 <= y + 1)) || (((((x <= 3 && y <= 5) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 3 && y <= 2) && N <= 10) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 6)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y + 1)) || (((((N <= 10 && y <= 3) && x <= 1) && 4 <= i) && 0 <= x) && 0 <= y)) || (0 <= y + 7 && ((((((y <= 0 && N <= 10) && x <= 1) && 8 <= i) && 0 <= y + 2147483648) && 0 <= x) || (((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2147483648)))) || (((((0 <= x + 4 && y <= 0) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 3)) || (((((y <= 1 && x <= 7) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 3 && 10 <= i) && y <= 0) && N <= 10) && 0 <= y + 2147483648) && 0 <= x)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 2)) || (((((x <= 3 && y <= 0) && N <= 10) && 8 <= i) && 0 <= y + 5) && 0 <= x)) || (((((y <= 2 && 0 <= x + 5) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 0 <= x + 2) && x <= 0) && 8 <= i)) || (((((9 <= i && y <= 5) && 0 <= x + 4) && N <= 10) && x <= 0) && 0 <= y)) || (((((9 <= i && y <= 5) && x <= 4) && N <= 10) && 0 <= x) && 0 <= y)) || (((((y <= 5 && N <= 10) && 7 <= i) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) && 0 <= y)) || (((((y <= 1 && N <= 10) && 7 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 3)) || (((((1 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 1) && 0 <= x)) || ((0 <= y + 9 && 0 <= x + 1) && ((((((9 <= i && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 2147483648) && x <= 2) && 0 <= x)))) || (((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2) && 4 <= i)) || (((((y <= 2 && 0 <= x + 1) && 3 <= i) && N <= 10) && x <= 0) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && x <= 2) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2147483648) && 0 <= x + 3)) || (((((x <= 3 && y <= 0) && N <= 10) && 4 <= i) && 0 <= y + 1) && 0 <= x)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 9) && 0 <= y + 1) && 0 <= x)) || ((y <= 9 && (((((9 <= i && N <= 10) && x <= 1) && 0 <= x) && 0 <= y) || ((((9 <= i && 0 <= x + 1) && N <= 10) && x <= 0) && 0 <= y))) && 0 <= x)) || (((((y <= 0 && N <= 10) && x <= 5) && 6 <= i) && 0 <= y + 1) && 0 <= x)) || (((((9 <= i && y <= 2) && x <= 7) && N <= 10) && 0 <= x) && 0 <= y)) || (((((y <= 2 && N <= 10) && x <= 2) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 1 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 7) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x + 7)) || (((((y <= 4 && N <= 10) && x <= 2) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 3 && 10 <= i) && N <= 10) && 0 <= x) && 0 <= y) && y <= 7)) || (((((y <= 0 && N <= 10) && 2 <= i) && 0 <= y + 2) && x <= 0) && 0 <= x)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 5) && 0 <= y + 5) && 0 <= x)) || (((((0 <= x + 1 && y <= 4) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && 8 <= i) && 0 <= y + 3) && x <= 5) && 0 <= x)) || (((((x <= 4 && N <= 10) && y <= 3) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 4 && y <= 4) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 8 && y <= 0) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 0) && x <= 7) && N <= 10) && 0 <= y + 3) && 0 <= x)) || ((((((9 <= i && N <= 10) && x <= 1) && 0 <= x) && 0 <= y) || ((((9 <= i && 0 <= x + 1) && N <= 10) && x <= 0) && 0 <= y)) && y <= 8)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 1) && 5 <= i) && 0 <= x)) || (((((x <= 3 && y <= 1) && N <= 10) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && x <= 8) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((y <= 2 && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((y <= 5 && 10 <= i) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 7) && 0 <= x)) || (((((N <= 10 && 8 <= i) && x <= 0) && y <= 8) && 0 <= y) && 0 <= x)) || (((((9 <= i && y <= 4) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y)) || (((((x <= 3 && y <= 0) && N <= 10) && 0 <= y + 3) && 6 <= i) && 0 <= x)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 8) && 0 <= y)) || (((((0 <= x + 4 && N <= 10) && y <= 3) && 7 <= i) && x <= 0) && 0 <= y)) || (((((y <= 1 && 0 <= x + 5) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((10 <= i && y <= 1) && 0 <= x + 2147483648) && N <= 10) && x <= 0) && 0 <= y)) || (((((x <= 3 && 0 <= y + 4) && y <= 0) && N <= 10) && 7 <= i) && 0 <= x)) || (((((y <= 5 && N <= 10) && x <= 0) && 5 <= i) && 0 <= x) && 0 <= y)) || ((y <= 0 && 0 <= y + 2) && ((((0 <= x + 1 && 3 <= i) && N <= 10) && x <= 0) || (((3 <= i && N <= 10) && x <= 1) && 0 <= x)))) || (((((y <= 0 && N <= 10) && x <= 0) && 5 <= i) && 0 <= y + 5) && 0 <= x)) || (((((x <= 3 && y <= 0) && 3 <= i) && N <= 10) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 9) && 0 <= y)) || (((((10 <= i && y <= 0) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y + 5)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 6 <= i)) || (((((y <= 2 && 3 <= i) && N <= 10) && x <= 1) && 0 <= x) && 0 <= y)) || (((((((9 <= i && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2147483648) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 2147483648) && x <= 2) && 0 <= x)) && 0 <= y + 7)) || (((((y <= 0 && 3 <= i) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 1)) || (((((y <= 2 && N <= 10) && 0 <= x + 2) && x <= 0) && 4 <= i) && 0 <= y)) || (((((0 <= x + 1 && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 5 <= i)) || (((((y <= 0 && N <= 10) && 8 <= i) && 0 <= y + 2) && 0 <= x) && x <= 6)) || (((((y <= 2 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 6) && 0 <= y)) || (((((9 <= i && y <= 2) && N <= 10) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((y <= 1 && 0 <= x + 4) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || (((((9 <= i && x <= 8) && y <= 0) && N <= 10) && 0 <= y + 1) && 0 <= x)) || (((((9 <= i && y <= 0) && 0 <= y + 6) && N <= 10) && x <= 0) && 0 <= x + 3)) || (((((x <= 3 && 9 <= i) && y <= 0) && 0 <= y + 6) && N <= 10) && 0 <= x)) || (((((y <= 5 && N <= 10) && 7 <= i) && x <= 2) && 0 <= x) && 0 <= y)) || (((((N <= 10 && y <= 3) && 8 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 2 && 0 <= x + 4) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((x <= 3 && N <= 10) && y <= 3) && 6 <= i) && 0 <= x) && 0 <= y)) || ((((((N <= 10 && x <= 1) && 8 <= i) && 0 <= x) && 0 <= y) || ((((0 <= x + 1 && N <= 10) && x <= 0) && 8 <= i) && 0 <= y)) && y <= 7)) || (((((10 <= i && y <= 4) && N <= 10) && 0 <= x) && 0 <= y) && x <= 6)) || (((((x <= 3 && y <= 0) && N <= 10) && 0 <= y + 2) && 5 <= i) && 0 <= x)) || (((((y <= 1 && 3 <= i) && N <= 10) && x <= 2) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 5 <= i) && 0 <= y + 3)) || (((((10 <= i && y <= 2) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y)) || (((((y <= 2 && N <= 10) && 7 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 6 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((10 <= i && y <= 4) && N <= 10) && x <= 0) && 0 <= x + 6) && 0 <= y)) || (((((10 <= i && 0 <= x + 4) && N <= 10) && x <= 0) && 0 <= y) && y <= 6)) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x) && x <= 6)) || (((((9 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 5) && 0 <= x)) || (((((x <= 4 && y <= 0) && N <= 10) && 0 <= y + 2) && 6 <= i) && 0 <= x)) || (((((9 <= i && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y) && y <= 6)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 8 <= i) && x <= 2) && 0 <= x)) || (((((9 <= i && y <= 1) && x <= 8) && N <= 10) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 6) && 6 <= i) && 0 <= y)) || (((((N <= 10 && 8 <= i) && x <= 2) && 0 <= x) && 0 <= y) && y <= 6)) || (((((9 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x + 6) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((y <= 2 && N <= 10) && 2 <= i) && x <= 0) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 3) && 0 <= y + 5)) || (((((N <= 10 && y <= 3) && 0 <= x + 2) && x <= 0) && 5 <= i) && 0 <= y)) || (((((N <= 10 && 7 <= i) && x <= 0) && 0 <= y) && 0 <= x) && y <= 7)) || (((((9 <= i && N <= 10) && x <= 2) && 0 <= x) && 0 <= y) && y <= 7)) || (((((10 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x + 7) && 0 <= y)) || ((((10 <= i && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((0 <= x + 4 && y <= 4) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y)) || (((((y <= 2 && N <= 10) && x <= 0) && 0 <= x + 3) && 5 <= i) && 0 <= y)) || (((((y <= 0 && x <= 7) && N <= 10) && 8 <= i) && 0 <= y + 1) && 0 <= x) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 10 error locations. Result: SAFE, OverallTime: 24.0s, OverallIterations: 47, TraceHistogramMax: 11, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 75.7s, HoareTripleCheckerStatistics: 1231 SDtfs, 5757 SDslu, 4420 SDs, 0 SdLazy, 1307 SolverSat, 863 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2197 GetRequests, 1950 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55733occurred in iteration=40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.1s AutomataMinimizationTime, 47 MinimizatonAttempts, 130578 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 1768 NumberOfFragments, 4432 HoareAnnotationTreeSize, 2 FomulaSimplifications, 59037 FormulaSimplificationTreeSizeReduction, 18.6s HoareSimplificationTime, 2 FomulaSimplificationsInter, 66445 FormulaSimplificationTreeSizeReductionInter, 57.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 4011 NumberOfCodeBlocks, 4003 NumberOfCodeBlocksAsserted, 193 NumberOfCheckSat, 3923 ConstructedInterpolants, 0 QuantifiedInterpolants, 966205 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4584 ConjunctsInSsa, 277 ConjunctsInUnsatCore, 88 InterpolantComputations, 9 PerfectInterpolantSequences, 724/11834 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...