./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 0.1.24-678e011 [2019-11-20 04:50:14,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:50:14,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:50:14,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:50:14,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:50:14,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:50:14,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:50:14,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:50:14,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:50:14,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:50:14,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:50:14,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:50:14,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:50:14,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:50:14,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:50:14,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:50:14,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:50:14,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:50:14,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:50:14,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:50:14,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:50:14,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:50:14,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:50:14,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:50:14,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:50:14,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:50:14,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:50:14,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:50:14,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:50:14,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:50:14,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:50:14,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:50:14,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:50:14,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:50:14,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:50:14,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:50:14,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:50:14,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:50:14,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:50:14,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:50:14,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:50:14,411 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 04:50:14,424 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:50:14,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:50:14,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:50:14,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:50:14,426 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:50:14,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:50:14,426 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 04:50:14,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:50:14,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:50:14,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:50:14,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:50:14,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:50:14,427 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 04:50:14,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:50:14,428 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:50:14,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:50:14,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:50:14,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:50:14,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:50:14,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:50:14,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:50:14,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:50:14,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:50:14,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:50:14,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:50:14,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:50:14,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:50:14,431 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_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:14,567 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:50:14,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:50:14,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:50:14,585 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:50:14,589 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:50:14,590 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2019-11-20 04:50:14,649 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/data/f40e07790/dccc44b00e8e45ab91c8cdf2f5a86a55/FLAG2f87fc5ab [2019-11-20 04:50:15,023 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:50:15,026 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2019-11-20 04:50:15,033 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/data/f40e07790/dccc44b00e8e45ab91c8cdf2f5a86a55/FLAG2f87fc5ab [2019-11-20 04:50:15,388 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/data/f40e07790/dccc44b00e8e45ab91c8cdf2f5a86a55 [2019-11-20 04:50:15,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:50:15,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:50:15,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:50:15,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:50:15,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:50:15,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:50:15" (1/1) ... [2019-11-20 04:50:15,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@784e7395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15, skipping insertion in model container [2019-11-20 04:50:15,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:50:15" (1/1) ... [2019-11-20 04:50:15,407 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:50:15,419 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:50:15,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:50:15,559 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:50:15,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:50:15,649 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:50:15,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15 WrapperNode [2019-11-20 04:50:15,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:50:15,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:50:15,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:50:15,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:50:15,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15" (1/1) ... [2019-11-20 04:50:15,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15" (1/1) ... [2019-11-20 04:50:15,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:50:15,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:50:15,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:50:15,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:50:15,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15" (1/1) ... [2019-11-20 04:50:15,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15" (1/1) ... [2019-11-20 04:50:15,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15" (1/1) ... [2019-11-20 04:50:15,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15" (1/1) ... [2019-11-20 04:50:15,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15" (1/1) ... [2019-11-20 04:50:15,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15" (1/1) ... [2019-11-20 04:50:15,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15" (1/1) ... [2019-11-20 04:50:15,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:50:15,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:50:15,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:50:15,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:50:15,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:50:15,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:50:16,047 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:50:16,047 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 04:50:16,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:50:16 BoogieIcfgContainer [2019-11-20 04:50:16,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:50:16,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:50:16,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:50:16,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:50:16,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:50:15" (1/3) ... [2019-11-20 04:50:16,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6dd949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:50:16, skipping insertion in model container [2019-11-20 04:50:16,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:50:15" (2/3) ... [2019-11-20 04:50:16,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6dd949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:50:16, skipping insertion in model container [2019-11-20 04:50:16,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:50:16" (3/3) ... [2019-11-20 04:50:16,071 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random2d.c [2019-11-20 04:50:16,080 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:50:16,085 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-11-20 04:50:16,095 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-11-20 04:50:16,124 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:50:16,124 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:50:16,124 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:50:16,125 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:50:16,125 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:50:16,125 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:50:16,125 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:50:16,125 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:50:16,139 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-11-20 04:50:16,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 04:50:16,144 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:16,145 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-20 04:50:16,145 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]=== [2019-11-20 04:50:16,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:16,151 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-20 04:50:16,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:16,159 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979681628] [2019-11-20 04:50:16,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:16,267 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979681628] [2019-11-20 04:50:16,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:50:16,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 04:50:16,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569041867] [2019-11-20 04:50:16,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:50:16,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:16,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:50:16,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:50:16,284 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2019-11-20 04:50:16,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:16,323 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2019-11-20 04:50:16,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:50:16,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-20 04:50:16,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:16,333 INFO L225 Difference]: With dead ends: 43 [2019-11-20 04:50:16,333 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 04:50:16,336 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 [2019-11-20 04:50:16,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 04:50:16,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-11-20 04:50:16,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 04:50:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-20 04:50:16,365 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 3 [2019-11-20 04:50:16,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:16,365 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-20 04:50:16,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:50:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-20 04:50:16,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 04:50:16,365 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:16,366 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-20 04:50:16,366 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]=== [2019-11-20 04:50:16,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:16,366 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-11-20 04:50:16,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:16,367 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622803355] [2019-11-20 04:50:16,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:16,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622803355] [2019-11-20 04:50:16,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:50:16,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 04:50:16,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063401833] [2019-11-20 04:50:16,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:50:16,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:16,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:50:16,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:50:16,390 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 3 states. [2019-11-20 04:50:16,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:16,410 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-11-20 04:50:16,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:50:16,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-20 04:50:16,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:16,412 INFO L225 Difference]: With dead ends: 29 [2019-11-20 04:50:16,412 INFO L226 Difference]: Without dead ends: 28 [2019-11-20 04:50:16,413 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 [2019-11-20 04:50:16,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-20 04:50:16,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-20 04:50:16,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-20 04:50:16,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-11-20 04:50:16,418 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 4 [2019-11-20 04:50:16,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:16,419 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-11-20 04:50:16,419 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:50:16,419 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-11-20 04:50:16,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 04:50:16,420 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:16,420 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:50:16,420 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]=== [2019-11-20 04:50:16,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:16,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1366845466, now seen corresponding path program 1 times [2019-11-20 04:50:16,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:16,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322736636] [2019-11-20 04:50:16,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:16,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322736636] [2019-11-20 04:50:16,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:50:16,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 04:50:16,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36439528] [2019-11-20 04:50:16,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:50:16,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:16,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:50:16,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:50:16,459 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2019-11-20 04:50:16,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:16,497 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2019-11-20 04:50:16,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:50:16,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-20 04:50:16,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:16,499 INFO L225 Difference]: With dead ends: 51 [2019-11-20 04:50:16,500 INFO L226 Difference]: Without dead ends: 49 [2019-11-20 04:50:16,500 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 [2019-11-20 04:50:16,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-20 04:50:16,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2019-11-20 04:50:16,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-20 04:50:16,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2019-11-20 04:50:16,508 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 7 [2019-11-20 04:50:16,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:16,508 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2019-11-20 04:50:16,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:50:16,509 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2019-11-20 04:50:16,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 04:50:16,509 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:16,509 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-20 04:50:16,510 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]=== [2019-11-20 04:50:16,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:16,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1366808307, now seen corresponding path program 1 times [2019-11-20 04:50:16,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:16,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795859665] [2019-11-20 04:50:16,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:16,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795859665] [2019-11-20 04:50:16,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729840458] [2019-11-20 04:50:16,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:16,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 04:50:16,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:16,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:16,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:16,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-20 04:50:16,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423636483] [2019-11-20 04:50:16,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:50:16,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:16,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:50:16,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:50:16,598 INFO L87 Difference]: Start difference. First operand 43 states and 59 transitions. Second operand 4 states. [2019-11-20 04:50:16,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:16,628 INFO L93 Difference]: Finished difference Result 70 states and 92 transitions. [2019-11-20 04:50:16,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:50:16,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-20 04:50:16,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:16,630 INFO L225 Difference]: With dead ends: 70 [2019-11-20 04:50:16,630 INFO L226 Difference]: Without dead ends: 69 [2019-11-20 04:50:16,630 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 [2019-11-20 04:50:16,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-20 04:50:16,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2019-11-20 04:50:16,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-20 04:50:16,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions. [2019-11-20 04:50:16,642 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 7 [2019-11-20 04:50:16,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:16,642 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 88 transitions. [2019-11-20 04:50:16,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:50:16,642 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions. [2019-11-20 04:50:16,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 04:50:16,643 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:16,643 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:50:16,863 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:16,866 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]=== [2019-11-20 04:50:16,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:16,866 INFO L82 PathProgramCache]: Analyzing trace with hash 577463568, now seen corresponding path program 1 times [2019-11-20 04:50:16,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:16,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531123005] [2019-11-20 04:50:16,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:16,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:16,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531123005] [2019-11-20 04:50:16,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:50:16,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 04:50:16,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620441084] [2019-11-20 04:50:16,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:50:16,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:16,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:50:16,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:50:16,904 INFO L87 Difference]: Start difference. First operand 61 states and 88 transitions. Second operand 3 states. [2019-11-20 04:50:16,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:16,945 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2019-11-20 04:50:16,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:50:16,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-20 04:50:16,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:16,948 INFO L225 Difference]: With dead ends: 101 [2019-11-20 04:50:16,948 INFO L226 Difference]: Without dead ends: 99 [2019-11-20 04:50:16,948 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 [2019-11-20 04:50:16,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-11-20 04:50:16,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2019-11-20 04:50:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-11-20 04:50:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions. [2019-11-20 04:50:16,971 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 8 [2019-11-20 04:50:16,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:16,972 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 141 transitions. [2019-11-20 04:50:16,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:50:16,973 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions. [2019-11-20 04:50:16,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 04:50:16,973 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:16,973 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:50:16,975 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]=== [2019-11-20 04:50:16,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:16,977 INFO L82 PathProgramCache]: Analyzing trace with hash 721693167, now seen corresponding path program 1 times [2019-11-20 04:50:16,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:16,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256986645] [2019-11-20 04:50:16,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:17,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:17,034 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256986645] [2019-11-20 04:50:17,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:50:17,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 04:50:17,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631732205] [2019-11-20 04:50:17,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:50:17,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:17,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:50:17,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:50:17,036 INFO L87 Difference]: Start difference. First operand 94 states and 141 transitions. Second operand 3 states. [2019-11-20 04:50:17,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:17,114 INFO L93 Difference]: Finished difference Result 165 states and 252 transitions. [2019-11-20 04:50:17,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:50:17,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-20 04:50:17,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:17,123 INFO L225 Difference]: With dead ends: 165 [2019-11-20 04:50:17,123 INFO L226 Difference]: Without dead ends: 163 [2019-11-20 04:50:17,123 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 [2019-11-20 04:50:17,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-20 04:50:17,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 154. [2019-11-20 04:50:17,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-20 04:50:17,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 234 transitions. [2019-11-20 04:50:17,140 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 234 transitions. Word has length 9 [2019-11-20 04:50:17,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:17,140 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 234 transitions. [2019-11-20 04:50:17,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:50:17,140 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 234 transitions. [2019-11-20 04:50:17,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 04:50:17,141 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:17,141 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:50:17,142 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]=== [2019-11-20 04:50:17,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:17,142 INFO L82 PathProgramCache]: Analyzing trace with hash 897651769, now seen corresponding path program 1 times [2019-11-20 04:50:17,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:17,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349450596] [2019-11-20 04:50:17,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:17,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:17,163 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349450596] [2019-11-20 04:50:17,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:50:17,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 04:50:17,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421859862] [2019-11-20 04:50:17,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:50:17,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:17,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:50:17,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:50:17,164 INFO L87 Difference]: Start difference. First operand 154 states and 234 transitions. Second operand 3 states. [2019-11-20 04:50:17,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:17,222 INFO L93 Difference]: Finished difference Result 283 states and 438 transitions. [2019-11-20 04:50:17,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:50:17,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-20 04:50:17,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:17,225 INFO L225 Difference]: With dead ends: 283 [2019-11-20 04:50:17,225 INFO L226 Difference]: Without dead ends: 281 [2019-11-20 04:50:17,226 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 [2019-11-20 04:50:17,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-11-20 04:50:17,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 276. [2019-11-20 04:50:17,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-11-20 04:50:17,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 424 transitions. [2019-11-20 04:50:17,263 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 424 transitions. Word has length 10 [2019-11-20 04:50:17,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:17,263 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 424 transitions. [2019-11-20 04:50:17,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:50:17,263 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 424 transitions. [2019-11-20 04:50:17,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 04:50:17,264 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:17,264 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1] [2019-11-20 04:50:17,265 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]=== [2019-11-20 04:50:17,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:17,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1830298297, now seen corresponding path program 2 times [2019-11-20 04:50:17,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:17,266 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490325091] [2019-11-20 04:50:17,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:17,305 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 04:50:17,305 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490325091] [2019-11-20 04:50:17,305 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269839845] [2019-11-20 04:50:17,305 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-20 04:50:17,331 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-20 04:50:17,331 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:17,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 04:50:17,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:17,335 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 04:50:17,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:17,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-20 04:50:17,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339063061] [2019-11-20 04:50:17,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:50:17,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:17,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:50:17,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:50:17,337 INFO L87 Difference]: Start difference. First operand 276 states and 424 transitions. Second operand 4 states. Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:17,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:17,368 INFO L93 Difference]: Finished difference Result 276 states and 424 transitions. [2019-11-20 04:50:17,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:50:17,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-20 04:50:17,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:17,381 INFO L225 Difference]: With dead ends: 276 [2019-11-20 04:50:17,383 INFO L226 Difference]: Without dead ends: 275 [2019-11-20 04:50:17,384 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 [2019-11-20 04:50:17,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-11-20 04:50:17,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 249. [2019-11-20 04:50:17,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2019-11-20 04:50:17,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 377 transitions. [2019-11-20 04:50:17,406 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 377 transitions. Word has length 11 [2019-11-20 04:50:17,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:17,406 INFO L462 AbstractCegarLoop]: Abstraction has 249 states and 377 transitions. [2019-11-20 04:50:17,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:50:17,406 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 377 transitions. [2019-11-20 04:50:17,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 04:50:17,407 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:17,407 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-11-20 04:50:17,610 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:17,610 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]=== [2019-11-20 04:50:17,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:17,611 INFO L82 PathProgramCache]: Analyzing trace with hash -795491305, now seen corresponding path program 1 times [2019-11-20 04:50:17,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:17,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784030009] [2019-11-20 04:50:17,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:17,643 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:17,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784030009] [2019-11-20 04:50:17,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157029698] [2019-11-20 04:50:17,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:17,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 04:50:17,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:17,672 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:17,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:17,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-20 04:50:17,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866533422] [2019-11-20 04:50:17,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:50:17,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:17,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:50:17,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:50:17,674 INFO L87 Difference]: Start difference. First operand 249 states and 377 transitions. Second operand 4 states. [2019-11-20 04:50:17,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:17,743 INFO L93 Difference]: Finished difference Result 449 states and 688 transitions. [2019-11-20 04:50:17,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:50:17,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-20 04:50:17,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:17,747 INFO L225 Difference]: With dead ends: 449 [2019-11-20 04:50:17,747 INFO L226 Difference]: Without dead ends: 447 [2019-11-20 04:50:17,748 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 [2019-11-20 04:50:17,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-11-20 04:50:17,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 357. [2019-11-20 04:50:17,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-11-20 04:50:17,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 543 transitions. [2019-11-20 04:50:17,770 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 543 transitions. Word has length 14 [2019-11-20 04:50:17,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:17,770 INFO L462 AbstractCegarLoop]: Abstraction has 357 states and 543 transitions. [2019-11-20 04:50:17,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:50:17,771 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 543 transitions. [2019-11-20 04:50:17,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 04:50:17,772 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:17,772 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:50:17,977 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:17,977 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]=== [2019-11-20 04:50:17,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:17,978 INFO L82 PathProgramCache]: Analyzing trace with hash 592160614, now seen corresponding path program 1 times [2019-11-20 04:50:17,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:17,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258405000] [2019-11-20 04:50:17,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:18,028 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:18,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258405000] [2019-11-20 04:50:18,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968787017] [2019-11-20 04:50:18,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:18,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 04:50:18,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:18,072 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:18,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:50:18,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-11-20 04:50:18,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793451264] [2019-11-20 04:50:18,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:50:18,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:18,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:50:18,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:50:18,074 INFO L87 Difference]: Start difference. First operand 357 states and 543 transitions. Second operand 3 states. [2019-11-20 04:50:18,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:18,095 INFO L93 Difference]: Finished difference Result 357 states and 543 transitions. [2019-11-20 04:50:18,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:50:18,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-20 04:50:18,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:18,098 INFO L225 Difference]: With dead ends: 357 [2019-11-20 04:50:18,099 INFO L226 Difference]: Without dead ends: 356 [2019-11-20 04:50:18,099 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 [2019-11-20 04:50:18,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-11-20 04:50:18,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-11-20 04:50:18,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-11-20 04:50:18,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 535 transitions. [2019-11-20 04:50:18,113 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 535 transitions. Word has length 16 [2019-11-20 04:50:18,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:18,114 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 535 transitions. [2019-11-20 04:50:18,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:50:18,114 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 535 transitions. [2019-11-20 04:50:18,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 04:50:18,115 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:18,115 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-11-20 04:50:18,321 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:18,321 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]=== [2019-11-20 04:50:18,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:18,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1177295603, now seen corresponding path program 1 times [2019-11-20 04:50:18,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:18,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128826881] [2019-11-20 04:50:18,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:18,383 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:18,383 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128826881] [2019-11-20 04:50:18,383 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359553870] [2019-11-20 04:50:18,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:18,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 04:50:18,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:18,425 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:18,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:18,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-20 04:50:18,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852059389] [2019-11-20 04:50:18,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:50:18,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:18,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:50:18,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:50:18,426 INFO L87 Difference]: Start difference. First operand 356 states and 535 transitions. Second operand 4 states. [2019-11-20 04:50:18,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:18,481 INFO L93 Difference]: Finished difference Result 609 states and 919 transitions. [2019-11-20 04:50:18,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:50:18,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-20 04:50:18,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:18,485 INFO L225 Difference]: With dead ends: 609 [2019-11-20 04:50:18,485 INFO L226 Difference]: Without dead ends: 608 [2019-11-20 04:50:18,486 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 [2019-11-20 04:50:18,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-11-20 04:50:18,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 464. [2019-11-20 04:50:18,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2019-11-20 04:50:18,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 701 transitions. [2019-11-20 04:50:18,505 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 701 transitions. Word has length 17 [2019-11-20 04:50:18,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:18,505 INFO L462 AbstractCegarLoop]: Abstraction has 464 states and 701 transitions. [2019-11-20 04:50:18,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:50:18,506 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 701 transitions. [2019-11-20 04:50:18,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 04:50:18,507 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:18,507 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-11-20 04:50:18,711 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:18,711 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]=== [2019-11-20 04:50:18,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:18,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1222343671, now seen corresponding path program 1 times [2019-11-20 04:50:18,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:18,712 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884100782] [2019-11-20 04:50:18,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:18,747 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:18,747 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884100782] [2019-11-20 04:50:18,747 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655507746] [2019-11-20 04:50:18,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:18,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 04:50:18,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:18,784 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:18,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:18,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-20 04:50:18,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204182521] [2019-11-20 04:50:18,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:50:18,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:18,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:50:18,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:50:18,786 INFO L87 Difference]: Start difference. First operand 464 states and 701 transitions. Second operand 4 states. [2019-11-20 04:50:18,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:18,846 INFO L93 Difference]: Finished difference Result 834 states and 1284 transitions. [2019-11-20 04:50:18,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:50:18,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-20 04:50:18,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:18,852 INFO L225 Difference]: With dead ends: 834 [2019-11-20 04:50:18,852 INFO L226 Difference]: Without dead ends: 832 [2019-11-20 04:50:18,853 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 [2019-11-20 04:50:18,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2019-11-20 04:50:18,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 668. [2019-11-20 04:50:18,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-11-20 04:50:18,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1007 transitions. [2019-11-20 04:50:18,876 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1007 transitions. Word has length 18 [2019-11-20 04:50:18,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:18,877 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 1007 transitions. [2019-11-20 04:50:18,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:50:18,877 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1007 transitions. [2019-11-20 04:50:18,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 04:50:18,879 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:18,879 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:50:19,085 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:19,085 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]=== [2019-11-20 04:50:19,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:19,086 INFO L82 PathProgramCache]: Analyzing trace with hash -668230362, now seen corresponding path program 1 times [2019-11-20 04:50:19,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:19,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879609154] [2019-11-20 04:50:19,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:19,135 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:19,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879609154] [2019-11-20 04:50:19,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552166869] [2019-11-20 04:50:19,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:19,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 04:50:19,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:19,183 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:19,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:50:19,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-11-20 04:50:19,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545320059] [2019-11-20 04:50:19,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:50:19,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:19,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:50:19,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:50:19,185 INFO L87 Difference]: Start difference. First operand 668 states and 1007 transitions. Second operand 3 states. [2019-11-20 04:50:19,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:19,208 INFO L93 Difference]: Finished difference Result 668 states and 1007 transitions. [2019-11-20 04:50:19,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:50:19,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-20 04:50:19,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:19,213 INFO L225 Difference]: With dead ends: 668 [2019-11-20 04:50:19,213 INFO L226 Difference]: Without dead ends: 667 [2019-11-20 04:50:19,214 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 [2019-11-20 04:50:19,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-11-20 04:50:19,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2019-11-20 04:50:19,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2019-11-20 04:50:19,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 991 transitions. [2019-11-20 04:50:19,236 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 991 transitions. Word has length 20 [2019-11-20 04:50:19,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:19,236 INFO L462 AbstractCegarLoop]: Abstraction has 667 states and 991 transitions. [2019-11-20 04:50:19,237 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:50:19,237 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 991 transitions. [2019-11-20 04:50:19,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 04:50:19,238 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:19,238 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1] [2019-11-20 04:50:19,453 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:19,453 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]=== [2019-11-20 04:50:19,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:19,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2023206598, now seen corresponding path program 2 times [2019-11-20 04:50:19,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:19,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136717332] [2019-11-20 04:50:19,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:19,504 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:19,504 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136717332] [2019-11-20 04:50:19,504 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382872948] [2019-11-20 04:50:19,504 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:19,537 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 04:50:19,538 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:19,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 04:50:19,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:19,545 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:19,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:19,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-20 04:50:19,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534129264] [2019-11-20 04:50:19,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:50:19,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:19,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:50:19,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:50:19,547 INFO L87 Difference]: Start difference. First operand 667 states and 991 transitions. Second operand 5 states. [2019-11-20 04:50:19,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:19,611 INFO L93 Difference]: Finished difference Result 1152 states and 1729 transitions. [2019-11-20 04:50:19,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:50:19,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-20 04:50:19,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:19,618 INFO L225 Difference]: With dead ends: 1152 [2019-11-20 04:50:19,618 INFO L226 Difference]: Without dead ends: 1150 [2019-11-20 04:50:19,619 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 [2019-11-20 04:50:19,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2019-11-20 04:50:19,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 913. [2019-11-20 04:50:19,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2019-11-20 04:50:19,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1351 transitions. [2019-11-20 04:50:19,646 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1351 transitions. Word has length 21 [2019-11-20 04:50:19,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:19,647 INFO L462 AbstractCegarLoop]: Abstraction has 913 states and 1351 transitions. [2019-11-20 04:50:19,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:50:19,647 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1351 transitions. [2019-11-20 04:50:19,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 04:50:19,648 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:19,648 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-11-20 04:50:19,850 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:19,851 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]=== [2019-11-20 04:50:19,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:19,851 INFO L82 PathProgramCache]: Analyzing trace with hash 759881029, now seen corresponding path program 1 times [2019-11-20 04:50:19,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:19,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914341535] [2019-11-20 04:50:19,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:19,894 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:19,895 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914341535] [2019-11-20 04:50:19,895 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917038802] [2019-11-20 04:50:19,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:19,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 04:50:19,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:19,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:19,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-20 04:50:19,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102554422] [2019-11-20 04:50:19,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:50:19,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:19,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:50:19,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:50:19,936 INFO L87 Difference]: Start difference. First operand 913 states and 1351 transitions. Second operand 4 states. [2019-11-20 04:50:19,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:19,995 INFO L93 Difference]: Finished difference Result 1557 states and 2328 transitions. [2019-11-20 04:50:19,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:50:19,995 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-11-20 04:50:19,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:20,004 INFO L225 Difference]: With dead ends: 1557 [2019-11-20 04:50:20,004 INFO L226 Difference]: Without dead ends: 1556 [2019-11-20 04:50:20,006 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 [2019-11-20 04:50:20,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2019-11-20 04:50:20,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1193. [2019-11-20 04:50:20,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2019-11-20 04:50:20,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1768 transitions. [2019-11-20 04:50:20,045 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1768 transitions. Word has length 21 [2019-11-20 04:50:20,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:20,046 INFO L462 AbstractCegarLoop]: Abstraction has 1193 states and 1768 transitions. [2019-11-20 04:50:20,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:50:20,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1768 transitions. [2019-11-20 04:50:20,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 04:50:20,047 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:20,047 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2019-11-20 04:50:20,259 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:20,260 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]=== [2019-11-20 04:50:20,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:20,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1092753757, now seen corresponding path program 2 times [2019-11-20 04:50:20,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:20,261 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526330339] [2019-11-20 04:50:20,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:20,292 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:20,292 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526330339] [2019-11-20 04:50:20,292 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575265478] [2019-11-20 04:50:20,292 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:20,323 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 04:50:20,323 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:20,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 04:50:20,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:20,329 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:20,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:20,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-20 04:50:20,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716757707] [2019-11-20 04:50:20,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:50:20,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:20,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:50:20,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:50:20,331 INFO L87 Difference]: Start difference. First operand 1193 states and 1768 transitions. Second operand 5 states. [2019-11-20 04:50:20,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:20,443 INFO L93 Difference]: Finished difference Result 1951 states and 2902 transitions. [2019-11-20 04:50:20,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:50:20,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-20 04:50:20,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:20,454 INFO L225 Difference]: With dead ends: 1951 [2019-11-20 04:50:20,454 INFO L226 Difference]: Without dead ends: 1950 [2019-11-20 04:50:20,456 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 [2019-11-20 04:50:20,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2019-11-20 04:50:20,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1429. [2019-11-20 04:50:20,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1429 states. [2019-11-20 04:50:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2114 transitions. [2019-11-20 04:50:20,499 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2114 transitions. Word has length 25 [2019-11-20 04:50:20,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:20,500 INFO L462 AbstractCegarLoop]: Abstraction has 1429 states and 2114 transitions. [2019-11-20 04:50:20,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:50:20,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2114 transitions. [2019-11-20 04:50:20,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 04:50:20,502 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:20,502 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1] [2019-11-20 04:50:20,714 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:20,714 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]=== [2019-11-20 04:50:20,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:20,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1883170607, now seen corresponding path program 2 times [2019-11-20 04:50:20,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:20,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042514910] [2019-11-20 04:50:20,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:20,764 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:20,764 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042514910] [2019-11-20 04:50:20,765 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076655196] [2019-11-20 04:50:20,765 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:20,800 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 04:50:20,801 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:20,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 04:50:20,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:20,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:20,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-20 04:50:20,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127788858] [2019-11-20 04:50:20,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:50:20,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:20,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:50:20,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:50:20,811 INFO L87 Difference]: Start difference. First operand 1429 states and 2114 transitions. Second operand 5 states. [2019-11-20 04:50:20,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:20,877 INFO L93 Difference]: Finished difference Result 2462 states and 3693 transitions. [2019-11-20 04:50:20,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:50:20,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-20 04:50:20,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:20,890 INFO L225 Difference]: With dead ends: 2462 [2019-11-20 04:50:20,890 INFO L226 Difference]: Without dead ends: 2460 [2019-11-20 04:50:20,893 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 [2019-11-20 04:50:20,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2019-11-20 04:50:20,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 1959. [2019-11-20 04:50:20,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2019-11-20 04:50:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 2882 transitions. [2019-11-20 04:50:20,948 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 2882 transitions. Word has length 27 [2019-11-20 04:50:20,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:20,948 INFO L462 AbstractCegarLoop]: Abstraction has 1959 states and 2882 transitions. [2019-11-20 04:50:20,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:50:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 2882 transitions. [2019-11-20 04:50:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 04:50:20,951 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:20,951 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1] [2019-11-20 04:50:21,154 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:21,155 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]=== [2019-11-20 04:50:21,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:21,155 INFO L82 PathProgramCache]: Analyzing trace with hash -748146377, now seen corresponding path program 3 times [2019-11-20 04:50:21,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:21,156 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819730688] [2019-11-20 04:50:21,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:21,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819730688] [2019-11-20 04:50:21,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131141032] [2019-11-20 04:50:21,213 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:21,255 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-20 04:50:21,255 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:21,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:50:21,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:21,269 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:21,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:21,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 04:50:21,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507055911] [2019-11-20 04:50:21,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 04:50:21,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:21,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 04:50:21,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:50:21,271 INFO L87 Difference]: Start difference. First operand 1959 states and 2882 transitions. Second operand 6 states. [2019-11-20 04:50:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:21,346 INFO L93 Difference]: Finished difference Result 3173 states and 4732 transitions. [2019-11-20 04:50:21,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:50:21,347 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2019-11-20 04:50:21,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:21,364 INFO L225 Difference]: With dead ends: 3173 [2019-11-20 04:50:21,364 INFO L226 Difference]: Without dead ends: 3171 [2019-11-20 04:50:21,370 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 [2019-11-20 04:50:21,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2019-11-20 04:50:21,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 2563. [2019-11-20 04:50:21,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2563 states. [2019-11-20 04:50:21,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3749 transitions. [2019-11-20 04:50:21,438 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3749 transitions. Word has length 28 [2019-11-20 04:50:21,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:21,439 INFO L462 AbstractCegarLoop]: Abstraction has 2563 states and 3749 transitions. [2019-11-20 04:50:21,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 04:50:21,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3749 transitions. [2019-11-20 04:50:21,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 04:50:21,440 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:21,440 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2019-11-20 04:50:21,643 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:21,644 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]=== [2019-11-20 04:50:21,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:21,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1682870728, now seen corresponding path program 2 times [2019-11-20 04:50:21,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:21,646 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596507469] [2019-11-20 04:50:21,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:21,694 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:21,695 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596507469] [2019-11-20 04:50:21,695 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312426495] [2019-11-20 04:50:21,695 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:21,735 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 04:50:21,736 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:21,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 04:50:21,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:21,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:21,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-20 04:50:21,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964712640] [2019-11-20 04:50:21,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:50:21,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:21,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:50:21,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:50:21,756 INFO L87 Difference]: Start difference. First operand 2563 states and 3749 transitions. Second operand 5 states. [2019-11-20 04:50:21,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:21,835 INFO L93 Difference]: Finished difference Result 4182 states and 6155 transitions. [2019-11-20 04:50:21,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:50:21,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-20 04:50:21,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:21,857 INFO L225 Difference]: With dead ends: 4182 [2019-11-20 04:50:21,857 INFO L226 Difference]: Without dead ends: 4181 [2019-11-20 04:50:21,860 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 [2019-11-20 04:50:21,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2019-11-20 04:50:21,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 3071. [2019-11-20 04:50:21,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3071 states. [2019-11-20 04:50:21,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 4483 transitions. [2019-11-20 04:50:21,949 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 4483 transitions. Word has length 31 [2019-11-20 04:50:21,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:21,950 INFO L462 AbstractCegarLoop]: Abstraction has 3071 states and 4483 transitions. [2019-11-20 04:50:21,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:50:21,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 4483 transitions. [2019-11-20 04:50:21,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 04:50:21,951 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:21,951 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2019-11-20 04:50:22,155 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:22,155 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]=== [2019-11-20 04:50:22,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:22,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1047523897, now seen corresponding path program 3 times [2019-11-20 04:50:22,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:22,156 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893873324] [2019-11-20 04:50:22,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:22,195 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:22,195 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893873324] [2019-11-20 04:50:22,195 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817709754] [2019-11-20 04:50:22,195 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:22,235 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-20 04:50:22,235 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:22,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:50:22,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:22,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:22,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 04:50:22,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604388047] [2019-11-20 04:50:22,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 04:50:22,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:22,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 04:50:22,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:50:22,248 INFO L87 Difference]: Start difference. First operand 3071 states and 4483 transitions. Second operand 6 states. [2019-11-20 04:50:22,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:22,339 INFO L93 Difference]: Finished difference Result 4727 states and 6947 transitions. [2019-11-20 04:50:22,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:50:22,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-20 04:50:22,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:22,362 INFO L225 Difference]: With dead ends: 4727 [2019-11-20 04:50:22,362 INFO L226 Difference]: Without dead ends: 4726 [2019-11-20 04:50:22,366 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 [2019-11-20 04:50:22,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2019-11-20 04:50:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 3459. [2019-11-20 04:50:22,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3459 states. [2019-11-20 04:50:22,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5047 transitions. [2019-11-20 04:50:22,455 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5047 transitions. Word has length 33 [2019-11-20 04:50:22,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:22,455 INFO L462 AbstractCegarLoop]: Abstraction has 3459 states and 5047 transitions. [2019-11-20 04:50:22,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 04:50:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5047 transitions. [2019-11-20 04:50:22,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 04:50:22,457 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:22,457 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-11-20 04:50:22,672 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:22,672 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]=== [2019-11-20 04:50:22,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:22,672 INFO L82 PathProgramCache]: Analyzing trace with hash -507101786, now seen corresponding path program 4 times [2019-11-20 04:50:22,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:22,672 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659404622] [2019-11-20 04:50:22,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:22,722 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:22,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659404622] [2019-11-20 04:50:22,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470988252] [2019-11-20 04:50:22,723 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:22,758 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 04:50:22,758 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:22,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 04:50:22,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:22,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:22,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-20 04:50:22,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415858173] [2019-11-20 04:50:22,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:50:22,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:22,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:50:22,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:50:22,767 INFO L87 Difference]: Start difference. First operand 3459 states and 5047 transitions. Second operand 7 states. [2019-11-20 04:50:22,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:22,871 INFO L93 Difference]: Finished difference Result 5326 states and 7884 transitions. [2019-11-20 04:50:22,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 04:50:22,871 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-11-20 04:50:22,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:22,905 INFO L225 Difference]: With dead ends: 5326 [2019-11-20 04:50:22,905 INFO L226 Difference]: Without dead ends: 5324 [2019-11-20 04:50:22,910 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 [2019-11-20 04:50:22,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2019-11-20 04:50:23,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 4377. [2019-11-20 04:50:23,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4377 states. [2019-11-20 04:50:23,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 6353 transitions. [2019-11-20 04:50:23,024 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 6353 transitions. Word has length 35 [2019-11-20 04:50:23,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:23,024 INFO L462 AbstractCegarLoop]: Abstraction has 4377 states and 6353 transitions. [2019-11-20 04:50:23,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:50:23,024 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 6353 transitions. [2019-11-20 04:50:23,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-20 04:50:23,026 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:23,026 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1] [2019-11-20 04:50:23,233 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:23,233 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]=== [2019-11-20 04:50:23,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:23,233 INFO L82 PathProgramCache]: Analyzing trace with hash -32854327, now seen corresponding path program 3 times [2019-11-20 04:50:23,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:23,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204373357] [2019-11-20 04:50:23,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:23,281 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204373357] [2019-11-20 04:50:23,281 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117756085] [2019-11-20 04:50:23,281 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:23,315 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-20 04:50:23,315 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:23,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:50:23,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:23,328 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:23,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:23,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 04:50:23,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181788274] [2019-11-20 04:50:23,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 04:50:23,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:23,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 04:50:23,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:50:23,330 INFO L87 Difference]: Start difference. First operand 4377 states and 6353 transitions. Second operand 6 states. [2019-11-20 04:50:23,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:23,451 INFO L93 Difference]: Finished difference Result 7069 states and 10425 transitions. [2019-11-20 04:50:23,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:50:23,477 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-11-20 04:50:23,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:23,493 INFO L225 Difference]: With dead ends: 7069 [2019-11-20 04:50:23,493 INFO L226 Difference]: Without dead ends: 7067 [2019-11-20 04:50:23,498 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 [2019-11-20 04:50:23,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2019-11-20 04:50:23,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 5729. [2019-11-20 04:50:23,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5729 states. [2019-11-20 04:50:23,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 8265 transitions. [2019-11-20 04:50:23,600 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 8265 transitions. Word has length 36 [2019-11-20 04:50:23,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:23,600 INFO L462 AbstractCegarLoop]: Abstraction has 5729 states and 8265 transitions. [2019-11-20 04:50:23,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 04:50:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 8265 transitions. [2019-11-20 04:50:23,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-20 04:50:23,602 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:23,602 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2019-11-20 04:50:23,805 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:23,805 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]=== [2019-11-20 04:50:23,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:23,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1137071253, now seen corresponding path program 3 times [2019-11-20 04:50:23,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:23,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686987858] [2019-11-20 04:50:23,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:23,841 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:23,842 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686987858] [2019-11-20 04:50:23,842 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552653668] [2019-11-20 04:50:23,842 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-20 04:50:23,885 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-20 04:50:23,885 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:23,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:50:23,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:23,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:23,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 04:50:23,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923645404] [2019-11-20 04:50:23,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 04:50:23,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:23,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 04:50:23,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:50:23,894 INFO L87 Difference]: Start difference. First operand 5729 states and 8265 transitions. Second operand 6 states. Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:24,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:24,008 INFO L93 Difference]: Finished difference Result 8806 states and 12809 transitions. [2019-11-20 04:50:24,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:50:24,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2019-11-20 04:50:24,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:24,023 INFO L225 Difference]: With dead ends: 8806 [2019-11-20 04:50:24,024 INFO L226 Difference]: Without dead ends: 8805 [2019-11-20 04:50:24,031 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 [2019-11-20 04:50:24,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8805 states. [2019-11-20 04:50:24,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8805 to 6453. [2019-11-20 04:50:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6453 states. [2019-11-20 04:50:24,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 9305 transitions. [2019-11-20 04:50:24,150 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 9305 transitions. Word has length 41 [2019-11-20 04:50:24,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:24,150 INFO L462 AbstractCegarLoop]: Abstraction has 6453 states and 9305 transitions. [2019-11-20 04:50:24,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 04:50:24,150 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 9305 transitions. [2019-11-20 04:50:24,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-20 04:50:24,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:24,152 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-11-20 04:50:24,355 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:24,355 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]=== [2019-11-20 04:50:24,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:24,356 INFO L82 PathProgramCache]: Analyzing trace with hash 589297713, now seen corresponding path program 4 times [2019-11-20 04:50:24,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:24,356 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434577772] [2019-11-20 04:50:24,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:24,419 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434577772] [2019-11-20 04:50:24,420 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492540933] [2019-11-20 04:50:24,420 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:24,460 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 04:50:24,460 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:24,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 04:50:24,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:24,468 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:24,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:24,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-20 04:50:24,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785954061] [2019-11-20 04:50:24,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:50:24,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:24,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:50:24,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:50:24,470 INFO L87 Difference]: Start difference. First operand 6453 states and 9305 transitions. Second operand 7 states. [2019-11-20 04:50:24,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:24,583 INFO L93 Difference]: Finished difference Result 9500 states and 13815 transitions. [2019-11-20 04:50:24,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 04:50:24,584 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2019-11-20 04:50:24,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:24,600 INFO L225 Difference]: With dead ends: 9500 [2019-11-20 04:50:24,600 INFO L226 Difference]: Without dead ends: 9499 [2019-11-20 04:50:24,608 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 [2019-11-20 04:50:24,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9499 states. [2019-11-20 04:50:24,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9499 to 7025. [2019-11-20 04:50:24,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7025 states. [2019-11-20 04:50:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 10131 transitions. [2019-11-20 04:50:24,728 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 10131 transitions. Word has length 41 [2019-11-20 04:50:24,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:24,728 INFO L462 AbstractCegarLoop]: Abstraction has 7025 states and 10131 transitions. [2019-11-20 04:50:24,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:50:24,728 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 10131 transitions. [2019-11-20 04:50:24,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-20 04:50:24,730 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:24,730 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 1, 1] [2019-11-20 04:50:24,934 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:24,935 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]=== [2019-11-20 04:50:24,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:24,935 INFO L82 PathProgramCache]: Analyzing trace with hash 644163159, now seen corresponding path program 5 times [2019-11-20 04:50:24,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:24,935 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769077016] [2019-11-20 04:50:24,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:24,995 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769077016] [2019-11-20 04:50:24,995 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972617918] [2019-11-20 04:50:24,995 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:25,044 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-20 04:50:25,045 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:25,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:50:25,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:25,052 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:25,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:25,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-20 04:50:25,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516386947] [2019-11-20 04:50:25,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:50:25,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:25,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:50:25,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:50:25,054 INFO L87 Difference]: Start difference. First operand 7025 states and 10131 transitions. Second operand 8 states. [2019-11-20 04:50:25,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:25,184 INFO L93 Difference]: Finished difference Result 10381 states and 15206 transitions. [2019-11-20 04:50:25,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 04:50:25,184 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-11-20 04:50:25,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:25,202 INFO L225 Difference]: With dead ends: 10381 [2019-11-20 04:50:25,202 INFO L226 Difference]: Without dead ends: 10379 [2019-11-20 04:50:25,210 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 [2019-11-20 04:50:25,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10379 states. [2019-11-20 04:50:25,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10379 to 8665. [2019-11-20 04:50:25,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8665 states. [2019-11-20 04:50:25,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8665 states to 8665 states and 12438 transitions. [2019-11-20 04:50:25,377 INFO L78 Accepts]: Start accepts. Automaton has 8665 states and 12438 transitions. Word has length 42 [2019-11-20 04:50:25,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:25,378 INFO L462 AbstractCegarLoop]: Abstraction has 8665 states and 12438 transitions. [2019-11-20 04:50:25,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:50:25,378 INFO L276 IsEmpty]: Start isEmpty. Operand 8665 states and 12438 transitions. [2019-11-20 04:50:25,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 04:50:25,380 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:25,380 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-11-20 04:50:25,584 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:25,584 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]=== [2019-11-20 04:50:25,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:25,585 INFO L82 PathProgramCache]: Analyzing trace with hash -809708433, now seen corresponding path program 4 times [2019-11-20 04:50:25,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:25,585 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169363753] [2019-11-20 04:50:25,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:25,688 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:25,688 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169363753] [2019-11-20 04:50:25,688 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393180755] [2019-11-20 04:50:25,688 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:25,726 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 04:50:25,727 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:25,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 04:50:25,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:25,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:25,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-20 04:50:25,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743022537] [2019-11-20 04:50:25,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:50:25,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:25,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:50:25,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:50:25,741 INFO L87 Difference]: Start difference. First operand 8665 states and 12438 transitions. Second operand 7 states. [2019-11-20 04:50:25,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:25,876 INFO L93 Difference]: Finished difference Result 13312 states and 19429 transitions. [2019-11-20 04:50:25,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 04:50:25,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-11-20 04:50:25,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:25,898 INFO L225 Difference]: With dead ends: 13312 [2019-11-20 04:50:25,898 INFO L226 Difference]: Without dead ends: 13310 [2019-11-20 04:50:25,902 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 [2019-11-20 04:50:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13310 states. [2019-11-20 04:50:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13310 to 10967. [2019-11-20 04:50:26,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10967 states. [2019-11-20 04:50:26,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10967 states to 10967 states and 15657 transitions. [2019-11-20 04:50:26,076 INFO L78 Accepts]: Start accepts. Automaton has 10967 states and 15657 transitions. Word has length 45 [2019-11-20 04:50:26,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:26,077 INFO L462 AbstractCegarLoop]: Abstraction has 10967 states and 15657 transitions. [2019-11-20 04:50:26,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:50:26,077 INFO L276 IsEmpty]: Start isEmpty. Operand 10967 states and 15657 transitions. [2019-11-20 04:50:26,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-20 04:50:26,079 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:26,079 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1] [2019-11-20 04:50:26,282 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:26,283 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]=== [2019-11-20 04:50:26,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:26,283 INFO L82 PathProgramCache]: Analyzing trace with hash -144620410, now seen corresponding path program 6 times [2019-11-20 04:50:26,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:26,284 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747607050] [2019-11-20 04:50:26,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:26,353 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:26,354 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747607050] [2019-11-20 04:50:26,354 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175201110] [2019-11-20 04:50:26,354 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:26,395 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-20 04:50:26,395 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:26,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:50:26,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:26,405 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:26,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:26,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-20 04:50:26,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684222018] [2019-11-20 04:50:26,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 04:50:26,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:26,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 04:50:26,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-20 04:50:26,409 INFO L87 Difference]: Start difference. First operand 10967 states and 15657 transitions. Second operand 9 states. [2019-11-20 04:50:26,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:26,571 INFO L93 Difference]: Finished difference Result 15622 states and 22665 transitions. [2019-11-20 04:50:26,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 04:50:26,571 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2019-11-20 04:50:26,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:26,602 INFO L225 Difference]: With dead ends: 15622 [2019-11-20 04:50:26,602 INFO L226 Difference]: Without dead ends: 15620 [2019-11-20 04:50:26,607 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 [2019-11-20 04:50:26,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15620 states. [2019-11-20 04:50:26,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15620 to 13091. [2019-11-20 04:50:26,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13091 states. [2019-11-20 04:50:26,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13091 states to 13091 states and 18609 transitions. [2019-11-20 04:50:26,808 INFO L78 Accepts]: Start accepts. Automaton has 13091 states and 18609 transitions. Word has length 49 [2019-11-20 04:50:26,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:26,809 INFO L462 AbstractCegarLoop]: Abstraction has 13091 states and 18609 transitions. [2019-11-20 04:50:26,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 04:50:26,809 INFO L276 IsEmpty]: Start isEmpty. Operand 13091 states and 18609 transitions. [2019-11-20 04:50:26,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-20 04:50:26,811 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:26,811 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2019-11-20 04:50:27,015 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:27,015 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]=== [2019-11-20 04:50:27,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:27,015 INFO L82 PathProgramCache]: Analyzing trace with hash 2004605083, now seen corresponding path program 5 times [2019-11-20 04:50:27,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:27,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551672379] [2019-11-20 04:50:27,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:27,087 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551672379] [2019-11-20 04:50:27,088 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676770852] [2019-11-20 04:50:27,088 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:27,126 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-20 04:50:27,127 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:27,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:50:27,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:27,136 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:27,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:27,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-20 04:50:27,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980994426] [2019-11-20 04:50:27,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:50:27,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:27,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:50:27,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:50:27,139 INFO L87 Difference]: Start difference. First operand 13091 states and 18609 transitions. Second operand 8 states. [2019-11-20 04:50:27,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:27,394 INFO L93 Difference]: Finished difference Result 19890 states and 28521 transitions. [2019-11-20 04:50:27,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 04:50:27,394 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2019-11-20 04:50:27,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:27,417 INFO L225 Difference]: With dead ends: 19890 [2019-11-20 04:50:27,417 INFO L226 Difference]: Without dead ends: 19889 [2019-11-20 04:50:27,421 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 [2019-11-20 04:50:27,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19889 states. [2019-11-20 04:50:27,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19889 to 14129. [2019-11-20 04:50:27,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14129 states. [2019-11-20 04:50:27,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14129 states to 14129 states and 20097 transitions. [2019-11-20 04:50:27,661 INFO L78 Accepts]: Start accepts. Automaton has 14129 states and 20097 transitions. Word has length 49 [2019-11-20 04:50:27,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:27,662 INFO L462 AbstractCegarLoop]: Abstraction has 14129 states and 20097 transitions. [2019-11-20 04:50:27,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:50:27,662 INFO L276 IsEmpty]: Start isEmpty. Operand 14129 states and 20097 transitions. [2019-11-20 04:50:27,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-20 04:50:27,665 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:27,665 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-11-20 04:50:27,868 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:27,868 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]=== [2019-11-20 04:50:27,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:27,868 INFO L82 PathProgramCache]: Analyzing trace with hash -85375778, now seen corresponding path program 4 times [2019-11-20 04:50:27,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:27,868 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166608794] [2019-11-20 04:50:27,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:27,930 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:27,931 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166608794] [2019-11-20 04:50:27,931 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746831035] [2019-11-20 04:50:27,931 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:27,961 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 04:50:27,961 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:27,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 04:50:27,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:27,969 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:27,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:27,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-20 04:50:27,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007602679] [2019-11-20 04:50:27,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:50:27,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:27,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:50:27,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:50:27,971 INFO L87 Difference]: Start difference. First operand 14129 states and 20097 transitions. Second operand 7 states. [2019-11-20 04:50:28,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:28,144 INFO L93 Difference]: Finished difference Result 20774 states and 29837 transitions. [2019-11-20 04:50:28,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 04:50:28,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-11-20 04:50:28,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:28,164 INFO L225 Difference]: With dead ends: 20774 [2019-11-20 04:50:28,164 INFO L226 Difference]: Without dead ends: 20773 [2019-11-20 04:50:28,170 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 [2019-11-20 04:50:28,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20773 states. [2019-11-20 04:50:28,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20773 to 15381. [2019-11-20 04:50:28,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15381 states. [2019-11-20 04:50:28,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15381 states to 15381 states and 21881 transitions. [2019-11-20 04:50:28,406 INFO L78 Accepts]: Start accepts. Automaton has 15381 states and 21881 transitions. Word has length 51 [2019-11-20 04:50:28,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:28,406 INFO L462 AbstractCegarLoop]: Abstraction has 15381 states and 21881 transitions. [2019-11-20 04:50:28,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:50:28,407 INFO L276 IsEmpty]: Start isEmpty. Operand 15381 states and 21881 transitions. [2019-11-20 04:50:28,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-11-20 04:50:28,410 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:28,410 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1] [2019-11-20 04:50:28,613 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:28,613 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]=== [2019-11-20 04:50:28,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:28,613 INFO L82 PathProgramCache]: Analyzing trace with hash -884758135, now seen corresponding path program 5 times [2019-11-20 04:50:28,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:28,614 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989852720] [2019-11-20 04:50:28,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:28,675 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989852720] [2019-11-20 04:50:28,675 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585966349] [2019-11-20 04:50:28,675 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:28,714 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-20 04:50:28,714 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:28,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:50:28,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:28,719 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:28,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:28,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-20 04:50:28,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647407978] [2019-11-20 04:50:28,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:50:28,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:28,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:50:28,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:50:28,721 INFO L87 Difference]: Start difference. First operand 15381 states and 21881 transitions. Second operand 8 states. [2019-11-20 04:50:28,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:28,913 INFO L93 Difference]: Finished difference Result 22697 states and 32841 transitions. [2019-11-20 04:50:28,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 04:50:28,914 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2019-11-20 04:50:28,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:28,937 INFO L225 Difference]: With dead ends: 22697 [2019-11-20 04:50:28,938 INFO L226 Difference]: Without dead ends: 22695 [2019-11-20 04:50:28,945 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 [2019-11-20 04:50:28,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22695 states. [2019-11-20 04:50:29,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22695 to 18973. [2019-11-20 04:50:29,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18973 states. [2019-11-20 04:50:29,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18973 states to 18973 states and 26864 transitions. [2019-11-20 04:50:29,313 INFO L78 Accepts]: Start accepts. Automaton has 18973 states and 26864 transitions. Word has length 54 [2019-11-20 04:50:29,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:29,313 INFO L462 AbstractCegarLoop]: Abstraction has 18973 states and 26864 transitions. [2019-11-20 04:50:29,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:50:29,313 INFO L276 IsEmpty]: Start isEmpty. Operand 18973 states and 26864 transitions. [2019-11-20 04:50:29,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-20 04:50:29,316 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:29,316 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 1, 1] [2019-11-20 04:50:29,518 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:29,519 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]=== [2019-11-20 04:50:29,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:29,519 INFO L82 PathProgramCache]: Analyzing trace with hash -931224713, now seen corresponding path program 7 times [2019-11-20 04:50:29,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:29,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318963666] [2019-11-20 04:50:29,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:29,605 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:29,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318963666] [2019-11-20 04:50:29,606 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517450433] [2019-11-20 04:50:29,606 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:29,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 04:50:29,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:29,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:29,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-20 04:50:29,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279603849] [2019-11-20 04:50:29,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 04:50:29,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:29,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 04:50:29,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 04:50:29,653 INFO L87 Difference]: Start difference. First operand 18973 states and 26864 transitions. Second operand 10 states. [2019-11-20 04:50:29,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:29,868 INFO L93 Difference]: Finished difference Result 26251 states and 37778 transitions. [2019-11-20 04:50:29,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 04:50:29,868 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2019-11-20 04:50:29,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:29,891 INFO L225 Difference]: With dead ends: 26251 [2019-11-20 04:50:29,891 INFO L226 Difference]: Without dead ends: 26249 [2019-11-20 04:50:29,895 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 [2019-11-20 04:50:29,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26249 states. [2019-11-20 04:50:30,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26249 to 22311. [2019-11-20 04:50:30,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22311 states. [2019-11-20 04:50:30,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22311 states to 22311 states and 31473 transitions. [2019-11-20 04:50:30,125 INFO L78 Accepts]: Start accepts. Automaton has 22311 states and 31473 transitions. Word has length 56 [2019-11-20 04:50:30,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:30,126 INFO L462 AbstractCegarLoop]: Abstraction has 22311 states and 31473 transitions. [2019-11-20 04:50:30,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 04:50:30,126 INFO L276 IsEmpty]: Start isEmpty. Operand 22311 states and 31473 transitions. [2019-11-20 04:50:30,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-20 04:50:30,129 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:30,129 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2019-11-20 04:50:30,332 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:30,332 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]=== [2019-11-20 04:50:30,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:30,333 INFO L82 PathProgramCache]: Analyzing trace with hash -2041729275, now seen corresponding path program 6 times [2019-11-20 04:50:30,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:30,333 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857496658] [2019-11-20 04:50:30,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:30,409 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857496658] [2019-11-20 04:50:30,409 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001502189] [2019-11-20 04:50:30,410 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:30,450 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-20 04:50:30,451 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:30,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:50:30,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:30,462 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:30,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:30,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-20 04:50:30,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753039518] [2019-11-20 04:50:30,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 04:50:30,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:30,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 04:50:30,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-20 04:50:30,464 INFO L87 Difference]: Start difference. First operand 22311 states and 31473 transitions. Second operand 9 states. [2019-11-20 04:50:30,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:30,832 INFO L93 Difference]: Finished difference Result 32955 states and 46932 transitions. [2019-11-20 04:50:30,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 04:50:30,833 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-11-20 04:50:30,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:30,859 INFO L225 Difference]: With dead ends: 32955 [2019-11-20 04:50:30,859 INFO L226 Difference]: Without dead ends: 32954 [2019-11-20 04:50:30,862 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 [2019-11-20 04:50:30,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32954 states. [2019-11-20 04:50:31,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32954 to 23705. [2019-11-20 04:50:31,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23705 states. [2019-11-20 04:50:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23705 states to 23705 states and 33462 transitions. [2019-11-20 04:50:31,125 INFO L78 Accepts]: Start accepts. Automaton has 23705 states and 33462 transitions. Word has length 57 [2019-11-20 04:50:31,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:31,125 INFO L462 AbstractCegarLoop]: Abstraction has 23705 states and 33462 transitions. [2019-11-20 04:50:31,125 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 04:50:31,126 INFO L276 IsEmpty]: Start isEmpty. Operand 23705 states and 33462 transitions. [2019-11-20 04:50:31,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-11-20 04:50:31,129 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:31,129 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2019-11-20 04:50:31,332 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:31,332 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]=== [2019-11-20 04:50:31,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:31,332 INFO L82 PathProgramCache]: Analyzing trace with hash 2087316113, now seen corresponding path program 5 times [2019-11-20 04:50:31,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:31,333 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274015289] [2019-11-20 04:50:31,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:31,388 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:31,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274015289] [2019-11-20 04:50:31,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521107667] [2019-11-20 04:50:31,389 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:31,425 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-20 04:50:31,425 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:31,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:50:31,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:31,436 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:31,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:31,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-20 04:50:31,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662840503] [2019-11-20 04:50:31,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:50:31,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:31,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:50:31,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:50:31,438 INFO L87 Difference]: Start difference. First operand 23705 states and 33462 transitions. Second operand 8 states. [2019-11-20 04:50:31,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:31,681 INFO L93 Difference]: Finished difference Result 33669 states and 48018 transitions. [2019-11-20 04:50:31,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 04:50:31,682 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2019-11-20 04:50:31,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:31,720 INFO L225 Difference]: With dead ends: 33669 [2019-11-20 04:50:31,721 INFO L226 Difference]: Without dead ends: 33668 [2019-11-20 04:50:31,729 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 [2019-11-20 04:50:31,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33668 states. [2019-11-20 04:50:32,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33668 to 25269. [2019-11-20 04:50:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25269 states. [2019-11-20 04:50:32,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25269 states to 25269 states and 35684 transitions. [2019-11-20 04:50:32,110 INFO L78 Accepts]: Start accepts. Automaton has 25269 states and 35684 transitions. Word has length 61 [2019-11-20 04:50:32,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:32,111 INFO L462 AbstractCegarLoop]: Abstraction has 25269 states and 35684 transitions. [2019-11-20 04:50:32,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:50:32,111 INFO L276 IsEmpty]: Start isEmpty. Operand 25269 states and 35684 transitions. [2019-11-20 04:50:32,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-20 04:50:32,115 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:32,116 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1] [2019-11-20 04:50:32,319 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:32,319 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]=== [2019-11-20 04:50:32,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:32,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1714864998, now seen corresponding path program 8 times [2019-11-20 04:50:32,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:32,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8943101] [2019-11-20 04:50:32,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:32,433 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8943101] [2019-11-20 04:50:32,433 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732077994] [2019-11-20 04:50:32,433 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:32,478 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 04:50:32,478 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:32,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:50:32,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:32,503 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:32,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:32,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-20 04:50:32,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529494328] [2019-11-20 04:50:32,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 04:50:32,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:32,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 04:50:32,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-20 04:50:32,505 INFO L87 Difference]: Start difference. First operand 25269 states and 35684 transitions. Second operand 11 states. [2019-11-20 04:50:32,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:32,847 INFO L93 Difference]: Finished difference Result 34130 states and 48968 transitions. [2019-11-20 04:50:32,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 04:50:32,848 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2019-11-20 04:50:32,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:32,882 INFO L225 Difference]: With dead ends: 34130 [2019-11-20 04:50:32,882 INFO L226 Difference]: Without dead ends: 34128 [2019-11-20 04:50:32,888 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 [2019-11-20 04:50:33,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34128 states. [2019-11-20 04:50:33,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34128 to 29345. [2019-11-20 04:50:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29345 states. [2019-11-20 04:50:33,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29345 states to 29345 states and 41306 transitions. [2019-11-20 04:50:33,392 INFO L78 Accepts]: Start accepts. Automaton has 29345 states and 41306 transitions. Word has length 63 [2019-11-20 04:50:33,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:33,392 INFO L462 AbstractCegarLoop]: Abstraction has 29345 states and 41306 transitions. [2019-11-20 04:50:33,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 04:50:33,392 INFO L276 IsEmpty]: Start isEmpty. Operand 29345 states and 41306 transitions. [2019-11-20 04:50:33,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-20 04:50:33,394 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:33,394 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1] [2019-11-20 04:50:33,595 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:33,595 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]=== [2019-11-20 04:50:33,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:33,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1360130479, now seen corresponding path program 6 times [2019-11-20 04:50:33,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:33,596 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024995210] [2019-11-20 04:50:33,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:33,650 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:33,650 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024995210] [2019-11-20 04:50:33,650 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946704247] [2019-11-20 04:50:33,651 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:33,685 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-20 04:50:33,685 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:33,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:50:33,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:33,695 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:33,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:33,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-20 04:50:33,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964420693] [2019-11-20 04:50:33,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 04:50:33,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:33,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 04:50:33,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-20 04:50:33,697 INFO L87 Difference]: Start difference. First operand 29345 states and 41306 transitions. Second operand 9 states. [2019-11-20 04:50:33,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:33,925 INFO L93 Difference]: Finished difference Result 41880 states and 59971 transitions. [2019-11-20 04:50:33,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 04:50:33,926 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2019-11-20 04:50:33,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:33,961 INFO L225 Difference]: With dead ends: 41880 [2019-11-20 04:50:33,961 INFO L226 Difference]: Without dead ends: 41878 [2019-11-20 04:50:33,968 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 [2019-11-20 04:50:33,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41878 states. [2019-11-20 04:50:34,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41878 to 35465. [2019-11-20 04:50:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35465 states. [2019-11-20 04:50:34,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35465 states to 35465 states and 49718 transitions. [2019-11-20 04:50:34,343 INFO L78 Accepts]: Start accepts. Automaton has 35465 states and 49718 transitions. Word has length 63 [2019-11-20 04:50:34,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:34,344 INFO L462 AbstractCegarLoop]: Abstraction has 35465 states and 49718 transitions. [2019-11-20 04:50:34,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 04:50:34,344 INFO L276 IsEmpty]: Start isEmpty. Operand 35465 states and 49718 transitions. [2019-11-20 04:50:34,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-20 04:50:34,348 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:34,348 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2019-11-20 04:50:34,551 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:34,551 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]=== [2019-11-20 04:50:34,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:34,552 INFO L82 PathProgramCache]: Analyzing trace with hash -851477649, now seen corresponding path program 7 times [2019-11-20 04:50:34,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:34,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948318990] [2019-11-20 04:50:34,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:34,644 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:34,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948318990] [2019-11-20 04:50:34,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360913113] [2019-11-20 04:50:34,644 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:34,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 04:50:34,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:34,697 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:34,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:34,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-20 04:50:34,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108194970] [2019-11-20 04:50:34,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 04:50:34,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:34,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 04:50:34,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 04:50:34,700 INFO L87 Difference]: Start difference. First operand 35465 states and 49718 transitions. Second operand 10 states. [2019-11-20 04:50:35,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:35,177 INFO L93 Difference]: Finished difference Result 51129 states and 72397 transitions. [2019-11-20 04:50:35,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 04:50:35,177 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2019-11-20 04:50:35,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:35,226 INFO L225 Difference]: With dead ends: 51129 [2019-11-20 04:50:35,226 INFO L226 Difference]: Without dead ends: 51128 [2019-11-20 04:50:35,235 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 [2019-11-20 04:50:35,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51128 states. [2019-11-20 04:50:35,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51128 to 37261. [2019-11-20 04:50:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37261 states. [2019-11-20 04:50:35,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37261 states to 37261 states and 52271 transitions. [2019-11-20 04:50:35,670 INFO L78 Accepts]: Start accepts. Automaton has 37261 states and 52271 transitions. Word has length 65 [2019-11-20 04:50:35,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:35,670 INFO L462 AbstractCegarLoop]: Abstraction has 37261 states and 52271 transitions. [2019-11-20 04:50:35,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 04:50:35,670 INFO L276 IsEmpty]: Start isEmpty. Operand 37261 states and 52271 transitions. [2019-11-20 04:50:35,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-20 04:50:35,674 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:35,674 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 1, 1] [2019-11-20 04:50:35,874 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:35,875 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]=== [2019-11-20 04:50:35,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:35,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1457084265, now seen corresponding path program 9 times [2019-11-20 04:50:35,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:35,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333058812] [2019-11-20 04:50:35,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:35,982 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:35,982 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333058812] [2019-11-20 04:50:35,982 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68419148] [2019-11-20 04:50:35,982 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:36,023 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-20 04:50:36,023 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:36,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 04:50:36,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:36,032 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:36,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:36,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-20 04:50:36,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927771179] [2019-11-20 04:50:36,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 04:50:36,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:36,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 04:50:36,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-20 04:50:36,034 INFO L87 Difference]: Start difference. First operand 37261 states and 52271 transitions. Second operand 12 states. [2019-11-20 04:50:36,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:36,387 INFO L93 Difference]: Finished difference Result 49299 states and 70254 transitions. [2019-11-20 04:50:36,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 04:50:36,388 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2019-11-20 04:50:36,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:36,434 INFO L225 Difference]: With dead ends: 49299 [2019-11-20 04:50:36,435 INFO L226 Difference]: Without dead ends: 49297 [2019-11-20 04:50:36,443 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 [2019-11-20 04:50:36,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49297 states. [2019-11-20 04:50:37,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49297 to 42813. [2019-11-20 04:50:37,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42813 states. [2019-11-20 04:50:37,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42813 states to 42813 states and 59889 transitions. [2019-11-20 04:50:37,339 INFO L78 Accepts]: Start accepts. Automaton has 42813 states and 59889 transitions. Word has length 70 [2019-11-20 04:50:37,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:37,339 INFO L462 AbstractCegarLoop]: Abstraction has 42813 states and 59889 transitions. [2019-11-20 04:50:37,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 04:50:37,339 INFO L276 IsEmpty]: Start isEmpty. Operand 42813 states and 59889 transitions. [2019-11-20 04:50:37,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-11-20 04:50:37,343 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:37,343 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2019-11-20 04:50:37,543 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:37,543 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]=== [2019-11-20 04:50:37,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:37,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1593226108, now seen corresponding path program 6 times [2019-11-20 04:50:37,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:37,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633633198] [2019-11-20 04:50:37,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:37,615 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:37,617 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633633198] [2019-11-20 04:50:37,617 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860752799] [2019-11-20 04:50:37,617 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:37,655 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-20 04:50:37,656 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:37,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:50:37,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:37,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:37,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-20 04:50:37,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729442611] [2019-11-20 04:50:37,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 04:50:37,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:37,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 04:50:37,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-20 04:50:37,670 INFO L87 Difference]: Start difference. First operand 42813 states and 59889 transitions. Second operand 9 states. [2019-11-20 04:50:37,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:37,962 INFO L93 Difference]: Finished difference Result 59102 states and 83563 transitions. [2019-11-20 04:50:37,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 04:50:37,963 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2019-11-20 04:50:37,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:38,018 INFO L225 Difference]: With dead ends: 59102 [2019-11-20 04:50:38,019 INFO L226 Difference]: Without dead ends: 59101 [2019-11-20 04:50:38,028 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 [2019-11-20 04:50:38,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59101 states. [2019-11-20 04:50:38,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59101 to 45005. [2019-11-20 04:50:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45005 states. [2019-11-20 04:50:38,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45005 states to 45005 states and 62987 transitions. [2019-11-20 04:50:38,526 INFO L78 Accepts]: Start accepts. Automaton has 45005 states and 62987 transitions. Word has length 71 [2019-11-20 04:50:38,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:38,526 INFO L462 AbstractCegarLoop]: Abstraction has 45005 states and 62987 transitions. [2019-11-20 04:50:38,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 04:50:38,527 INFO L276 IsEmpty]: Start isEmpty. Operand 45005 states and 62987 transitions. [2019-11-20 04:50:38,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-11-20 04:50:38,531 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:38,531 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1] [2019-11-20 04:50:38,733 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:38,733 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]=== [2019-11-20 04:50:38,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:38,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1572566089, now seen corresponding path program 7 times [2019-11-20 04:50:38,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:38,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979763449] [2019-11-20 04:50:38,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:38,828 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979763449] [2019-11-20 04:50:38,828 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820636320] [2019-11-20 04:50:38,828 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:38,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 04:50:38,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:38,879 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:38,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:38,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-20 04:50:38,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537835068] [2019-11-20 04:50:38,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 04:50:38,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:38,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 04:50:38,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 04:50:38,882 INFO L87 Difference]: Start difference. First operand 45005 states and 62987 transitions. Second operand 10 states. [2019-11-20 04:50:39,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:39,176 INFO L93 Difference]: Finished difference Result 62465 states and 88920 transitions. [2019-11-20 04:50:39,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 04:50:39,177 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2019-11-20 04:50:39,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:39,236 INFO L225 Difference]: With dead ends: 62465 [2019-11-20 04:50:39,236 INFO L226 Difference]: Without dead ends: 62463 [2019-11-20 04:50:39,246 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 [2019-11-20 04:50:39,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62463 states. [2019-11-20 04:50:40,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62463 to 53489. [2019-11-20 04:50:40,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53489 states. [2019-11-20 04:50:40,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53489 states to 53489 states and 74598 transitions. [2019-11-20 04:50:40,263 INFO L78 Accepts]: Start accepts. Automaton has 53489 states and 74598 transitions. Word has length 72 [2019-11-20 04:50:40,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:40,264 INFO L462 AbstractCegarLoop]: Abstraction has 53489 states and 74598 transitions. [2019-11-20 04:50:40,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 04:50:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 53489 states and 74598 transitions. [2019-11-20 04:50:40,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-11-20 04:50:40,268 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:40,269 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2019-11-20 04:50:40,470 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:40,470 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]=== [2019-11-20 04:50:40,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:40,470 INFO L82 PathProgramCache]: Analyzing trace with hash 2147171801, now seen corresponding path program 8 times [2019-11-20 04:50:40,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:40,470 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369857176] [2019-11-20 04:50:40,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:40,566 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:40,566 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369857176] [2019-11-20 04:50:40,566 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488180603] [2019-11-20 04:50:40,567 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:40,605 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 04:50:40,605 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:40,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:50:40,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:40,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:40,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-20 04:50:40,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615330733] [2019-11-20 04:50:40,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 04:50:40,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:40,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 04:50:40,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-20 04:50:40,622 INFO L87 Difference]: Start difference. First operand 53489 states and 74598 transitions. Second operand 11 states. [2019-11-20 04:50:41,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:41,100 INFO L93 Difference]: Finished difference Result 75498 states and 106380 transitions. [2019-11-20 04:50:41,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 04:50:41,100 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2019-11-20 04:50:41,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:41,198 INFO L225 Difference]: With dead ends: 75498 [2019-11-20 04:50:41,199 INFO L226 Difference]: Without dead ends: 75497 [2019-11-20 04:50:41,216 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 [2019-11-20 04:50:41,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75497 states. [2019-11-20 04:50:41,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75497 to 55733. [2019-11-20 04:50:41,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55733 states. [2019-11-20 04:50:41,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55733 states to 55733 states and 77778 transitions. [2019-11-20 04:50:41,930 INFO L78 Accepts]: Start accepts. Automaton has 55733 states and 77778 transitions. Word has length 73 [2019-11-20 04:50:41,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:41,931 INFO L462 AbstractCegarLoop]: Abstraction has 55733 states and 77778 transitions. [2019-11-20 04:50:41,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 04:50:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 55733 states and 77778 transitions. [2019-11-20 04:50:41,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-20 04:50:41,935 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:41,936 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1] [2019-11-20 04:50:42,136 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:42,136 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]=== [2019-11-20 04:50:42,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:42,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1519696454, now seen corresponding path program 10 times [2019-11-20 04:50:42,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:42,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792522949] [2019-11-20 04:50:42,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:42,213 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2019-11-20 04:50:42,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792522949] [2019-11-20 04:50:42,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038874311] [2019-11-20 04:50:42,214 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:42,264 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 04:50:42,264 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:42,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 04:50:42,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:42,504 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:42,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:50:42,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [3] total 15 [2019-11-20 04:50:42,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783501771] [2019-11-20 04:50:42,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 04:50:42,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:42,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 04:50:42,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-11-20 04:50:42,508 INFO L87 Difference]: Start difference. First operand 55733 states and 77778 transitions. Second operand 13 states. [2019-11-20 04:50:43,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:43,207 INFO L93 Difference]: Finished difference Result 74113 states and 102475 transitions. [2019-11-20 04:50:43,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 04:50:43,208 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 77 [2019-11-20 04:50:43,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:43,850 INFO L225 Difference]: With dead ends: 74113 [2019-11-20 04:50:43,850 INFO L226 Difference]: Without dead ends: 1343 [2019-11-20 04:50:43,915 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-11-20 04:50:43,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2019-11-20 04:50:43,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 585. [2019-11-20 04:50:43,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2019-11-20 04:50:43,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 700 transitions. [2019-11-20 04:50:43,930 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 700 transitions. Word has length 77 [2019-11-20 04:50:43,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:43,930 INFO L462 AbstractCegarLoop]: Abstraction has 585 states and 700 transitions. [2019-11-20 04:50:43,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 04:50:43,930 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 700 transitions. [2019-11-20 04:50:43,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-20 04:50:43,932 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:43,932 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1] [2019-11-20 04:50:44,135 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:44,135 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]=== [2019-11-20 04:50:44,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:44,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1093517585, now seen corresponding path program 8 times [2019-11-20 04:50:44,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:44,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238136293] [2019-11-20 04:50:44,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:44,233 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:44,233 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238136293] [2019-11-20 04:50:44,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757757412] [2019-11-20 04:50:44,234 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:44,278 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 04:50:44,278 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:44,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:50:44,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:44,291 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:44,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:44,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-20 04:50:44,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814408297] [2019-11-20 04:50:44,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 04:50:44,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:44,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 04:50:44,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-20 04:50:44,293 INFO L87 Difference]: Start difference. First operand 585 states and 700 transitions. Second operand 11 states. [2019-11-20 04:50:44,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:44,354 INFO L93 Difference]: Finished difference Result 701 states and 822 transitions. [2019-11-20 04:50:44,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 04:50:44,355 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2019-11-20 04:50:44,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:44,355 INFO L225 Difference]: With dead ends: 701 [2019-11-20 04:50:44,355 INFO L226 Difference]: Without dead ends: 587 [2019-11-20 04:50:44,356 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 [2019-11-20 04:50:44,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2019-11-20 04:50:44,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 481. [2019-11-20 04:50:44,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2019-11-20 04:50:44,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 563 transitions. [2019-11-20 04:50:44,368 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 563 transitions. Word has length 81 [2019-11-20 04:50:44,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:44,368 INFO L462 AbstractCegarLoop]: Abstraction has 481 states and 563 transitions. [2019-11-20 04:50:44,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 04:50:44,368 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 563 transitions. [2019-11-20 04:50:44,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-20 04:50:44,369 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:44,370 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2019-11-20 04:50:44,572 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:44,572 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]=== [2019-11-20 04:50:44,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:44,573 INFO L82 PathProgramCache]: Analyzing trace with hash -944170313, now seen corresponding path program 7 times [2019-11-20 04:50:44,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:44,573 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399864720] [2019-11-20 04:50:44,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:44,668 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399864720] [2019-11-20 04:50:44,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658013708] [2019-11-20 04:50:44,669 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:44,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 04:50:44,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:44,724 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:44,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:44,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-20 04:50:44,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745115813] [2019-11-20 04:50:44,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 04:50:44,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:44,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 04:50:44,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 04:50:44,727 INFO L87 Difference]: Start difference. First operand 481 states and 563 transitions. Second operand 10 states. [2019-11-20 04:50:44,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:44,794 INFO L93 Difference]: Finished difference Result 546 states and 639 transitions. [2019-11-20 04:50:44,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 04:50:44,795 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2019-11-20 04:50:44,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:44,795 INFO L225 Difference]: With dead ends: 546 [2019-11-20 04:50:44,795 INFO L226 Difference]: Without dead ends: 379 [2019-11-20 04:50:44,796 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 [2019-11-20 04:50:44,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-11-20 04:50:44,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-11-20 04:50:44,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-11-20 04:50:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 417 transitions. [2019-11-20 04:50:44,805 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 417 transitions. Word has length 81 [2019-11-20 04:50:44,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:44,806 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 417 transitions. [2019-11-20 04:50:44,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 04:50:44,807 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 417 transitions. [2019-11-20 04:50:44,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-20 04:50:44,808 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:44,808 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2019-11-20 04:50:45,011 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:45,011 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]=== [2019-11-20 04:50:45,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:45,011 INFO L82 PathProgramCache]: Analyzing trace with hash -2010450365, now seen corresponding path program 9 times [2019-11-20 04:50:45,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:45,011 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267309720] [2019-11-20 04:50:45,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:45,125 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267309720] [2019-11-20 04:50:45,125 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091472155] [2019-11-20 04:50:45,126 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:45,160 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-20 04:50:45,160 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:45,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 04:50:45,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:45,176 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:45,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:45,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-20 04:50:45,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136090194] [2019-11-20 04:50:45,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 04:50:45,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:45,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 04:50:45,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-20 04:50:45,178 INFO L87 Difference]: Start difference. First operand 379 states and 417 transitions. Second operand 12 states. [2019-11-20 04:50:45,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:45,226 INFO L93 Difference]: Finished difference Result 464 states and 501 transitions. [2019-11-20 04:50:45,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 04:50:45,227 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2019-11-20 04:50:45,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:45,227 INFO L225 Difference]: With dead ends: 464 [2019-11-20 04:50:45,227 INFO L226 Difference]: Without dead ends: 397 [2019-11-20 04:50:45,228 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 [2019-11-20 04:50:45,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-11-20 04:50:45,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 306. [2019-11-20 04:50:45,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-11-20 04:50:45,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 344 transitions. [2019-11-20 04:50:45,234 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 344 transitions. Word has length 81 [2019-11-20 04:50:45,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:45,234 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 344 transitions. [2019-11-20 04:50:45,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 04:50:45,234 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 344 transitions. [2019-11-20 04:50:45,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-11-20 04:50:45,235 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:45,235 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1] [2019-11-20 04:50:45,438 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:45,439 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]=== [2019-11-20 04:50:45,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:45,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1856106743, now seen corresponding path program 9 times [2019-11-20 04:50:45,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:45,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541329029] [2019-11-20 04:50:45,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:45,554 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:45,555 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541329029] [2019-11-20 04:50:45,555 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000459056] [2019-11-20 04:50:45,555 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:45,613 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-20 04:50:45,613 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:45,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 04:50:45,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:45,635 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:45,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:45,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-20 04:50:45,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597059981] [2019-11-20 04:50:45,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 04:50:45,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:45,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 04:50:45,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-20 04:50:45,637 INFO L87 Difference]: Start difference. First operand 306 states and 344 transitions. Second operand 12 states. [2019-11-20 04:50:45,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:45,677 INFO L93 Difference]: Finished difference Result 319 states and 357 transitions. [2019-11-20 04:50:45,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 04:50:45,677 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2019-11-20 04:50:45,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:45,678 INFO L225 Difference]: With dead ends: 319 [2019-11-20 04:50:45,678 INFO L226 Difference]: Without dead ends: 242 [2019-11-20 04:50:45,678 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 [2019-11-20 04:50:45,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-11-20 04:50:45,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 222. [2019-11-20 04:50:45,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-11-20 04:50:45,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 260 transitions. [2019-11-20 04:50:45,683 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 260 transitions. Word has length 90 [2019-11-20 04:50:45,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:45,683 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 260 transitions. [2019-11-20 04:50:45,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 04:50:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 260 transitions. [2019-11-20 04:50:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-11-20 04:50:45,684 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:45,684 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2019-11-20 04:50:45,888 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:45,888 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]=== [2019-11-20 04:50:45,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:45,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1359938858, now seen corresponding path program 8 times [2019-11-20 04:50:45,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:45,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739301005] [2019-11-20 04:50:45,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:46,006 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:46,006 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739301005] [2019-11-20 04:50:46,006 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723516036] [2019-11-20 04:50:46,006 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:46,042 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 04:50:46,042 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:46,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:50:46,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:46,057 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:46,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:46,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-20 04:50:46,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826850548] [2019-11-20 04:50:46,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 04:50:46,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:46,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 04:50:46,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-20 04:50:46,058 INFO L87 Difference]: Start difference. First operand 222 states and 260 transitions. Second operand 11 states. [2019-11-20 04:50:46,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:46,089 INFO L93 Difference]: Finished difference Result 243 states and 280 transitions. [2019-11-20 04:50:46,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 04:50:46,089 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2019-11-20 04:50:46,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:46,089 INFO L225 Difference]: With dead ends: 243 [2019-11-20 04:50:46,089 INFO L226 Difference]: Without dead ends: 102 [2019-11-20 04:50:46,090 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 [2019-11-20 04:50:46,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-20 04:50:46,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-11-20 04:50:46,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-20 04:50:46,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 101 transitions. [2019-11-20 04:50:46,092 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 101 transitions. Word has length 91 [2019-11-20 04:50:46,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:46,092 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 101 transitions. [2019-11-20 04:50:46,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 04:50:46,092 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 101 transitions. [2019-11-20 04:50:46,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-11-20 04:50:46,092 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:50:46,092 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2019-11-20 04:50:46,293 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:46,293 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]=== [2019-11-20 04:50:46,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:50:46,293 INFO L82 PathProgramCache]: Analyzing trace with hash -498811939, now seen corresponding path program 9 times [2019-11-20 04:50:46,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:50:46,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604402930] [2019-11-20 04:50:46,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:50:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:50:46,427 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:46,427 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604402930] [2019-11-20 04:50:46,427 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870426705] [2019-11-20 04:50:46,427 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/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 [2019-11-20 04:50:46,475 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-20 04:50:46,476 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:50:46,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 04:50:46,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:50:46,498 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:50:46,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:50:46,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-20 04:50:46,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209729147] [2019-11-20 04:50:46,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 04:50:46,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:50:46,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 04:50:46,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-20 04:50:46,500 INFO L87 Difference]: Start difference. First operand 102 states and 101 transitions. Second operand 12 states. [2019-11-20 04:50:46,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:50:46,525 INFO L93 Difference]: Finished difference Result 102 states and 101 transitions. [2019-11-20 04:50:46,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 04:50:46,526 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2019-11-20 04:50:46,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:50:46,526 INFO L225 Difference]: With dead ends: 102 [2019-11-20 04:50:46,526 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 04:50:46,526 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 [2019-11-20 04:50:46,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 04:50:46,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 04:50:46,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 04:50:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 04:50:46,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-11-20 04:50:46,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:50:46,527 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:50:46,527 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 04:50:46,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:50:46,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 04:50:46,728 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:50:46,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 04:51:08,654 WARN L191 SmtUtils]: Spent 21.91 s on a formula simplification. DAG size of input: 2170 DAG size of output: 1834 [2019-11-20 04:52:34,232 WARN L191 SmtUtils]: Spent 1.43 m on a formula simplification. DAG size of input: 1797 DAG size of output: 328 [2019-11-20 04:52:34,236 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-20 04:52:34,236 INFO L444 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2019-11-20 04:52:34,236 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 31) no Hoare annotation was computed. [2019-11-20 04:52:34,236 INFO L444 ceAbstractionStarter]: For program point L19-2(lines 19 33) no Hoare annotation was computed. [2019-11-20 04:52:34,236 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-11-20 04:52:34,236 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-20 04:52:34,236 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 04:52:34,237 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-20 04:52:34,237 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 04:52:34,237 INFO L444 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-20 04:52:34,237 INFO L444 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-11-20 04:52:34,237 INFO L444 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-20 04:52:34,237 INFO L444 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-11-20 04:52:34,237 INFO L444 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-20 04:52:34,237 INFO L444 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-20 04:52:34,237 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-11-20 04:52:34,237 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-20 04:52:34,237 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 04:52:34,238 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2019-11-20 04:52:34,238 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-20 04:52:34,238 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-11-20 04:52:34,238 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-11-20 04:52:34,238 INFO L447 ceAbstractionStarter]: At program point L34(lines 13 35) the Hoare annotation is: true [2019-11-20 04:52:34,238 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-20 04:52:34,238 INFO L444 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-11-20 04:52:34,238 INFO L444 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-11-20 04:52:34,238 INFO L444 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2019-11-20 04:52:34,238 INFO L444 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-11-20 04:52:34,238 INFO L444 ceAbstractionStarter]: For program point L22(lines 22 32) no Hoare annotation was computed. [2019-11-20 04:52:34,241 INFO L440 ceAbstractionStarter]: At program point L22-1(lines 19 33) the Hoare annotation is: (let ((.cse5 (<= 0 ULTIMATE.start_main_~y~0)) (.cse28 (<= 0 (+ ULTIMATE.start_main_~x~0 1))) (.cse27 (<= ULTIMATE.start_main_~x~0 1)) (.cse11 (<= 8 ULTIMATE.start_main_~i~0)) (.cse37 (<= 0 (+ ULTIMATE.start_main_~x~0 2))) (.cse3 (<= ULTIMATE.start_main_~x~0 0)) (.cse6 (<= 9 ULTIMATE.start_main_~i~0)) (.cse9 (<= ULTIMATE.start_main_~y~0 0)) (.cse1 (<= ULTIMATE.start_main_~N~0 10)) (.cse49 (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648))) (.cse19 (<= ULTIMATE.start_main_~x~0 2)) (.cse4 (<= 0 ULTIMATE.start_main_~x~0))) (let ((.cse43 (or (and .cse6 .cse9 .cse1 .cse37 .cse3 .cse49) (and .cse6 .cse9 .cse1 .cse49 .cse19 .cse4))) (.cse10 (<= ULTIMATE.start_main_~x~0 7)) (.cse15 (<= ULTIMATE.start_main_~x~0 8)) (.cse46 (<= ULTIMATE.start_main_~x~0 9)) (.cse18 (<= 2 ULTIMATE.start_main_~i~0)) (.cse33 (<= ULTIMATE.start_main_~y~0 2)) (.cse0 (<= 3 ULTIMATE.start_main_~i~0)) (.cse31 (<= 0 (+ ULTIMATE.start_main_~x~0 3))) (.cse32 (<= ULTIMATE.start_main_~y~0 6)) (.cse36 (<= ULTIMATE.start_main_~y~0 8)) (.cse41 (<= ULTIMATE.start_main_~x~0 4)) (.cse45 (<= 0 (+ ULTIMATE.start_main_~x~0 8))) (.cse13 (<= 5 ULTIMATE.start_main_~i~0)) (.cse50 (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) (.cse26 (<= 0 (+ ULTIMATE.start_main_~y~0 4))) (.cse8 (<= ULTIMATE.start_main_~x~0 5)) (.cse17 (<= 0 (+ ULTIMATE.start_main_~x~0 4))) (.cse24 (<= 0 (+ ULTIMATE.start_main_~y~0 3))) (.cse48 (<= 0 (+ ULTIMATE.start_main_~y~0 6))) (.cse51 (or (and .cse28 .cse9 .cse1 .cse3 .cse11 .cse49) (and .cse9 .cse1 .cse27 .cse11 .cse49 .cse4))) (.cse16 (<= ULTIMATE.start_main_~y~0 1)) (.cse40 (<= ULTIMATE.start_main_~x~0 3)) (.cse29 (<= ULTIMATE.start_main_~y~0 5)) (.cse21 (<= 6 ULTIMATE.start_main_~i~0)) (.cse39 (<= 1 ULTIMATE.start_main_~i~0)) (.cse12 (<= 0 (+ ULTIMATE.start_main_~y~0 1))) (.cse35 (or (and .cse6 .cse28 .cse1 .cse3 .cse5) (and .cse6 .cse1 .cse27 .cse4 .cse5))) (.cse2 (<= ULTIMATE.start_main_~y~0 3)) (.cse34 (<= 0 (+ ULTIMATE.start_main_~x~0 6))) (.cse42 (<= 0 (+ ULTIMATE.start_main_~x~0 5))) (.cse14 (<= 0 (+ ULTIMATE.start_main_~y~0 5))) (.cse22 (<= ULTIMATE.start_main_~x~0 6)) (.cse20 (<= ULTIMATE.start_main_~y~0 7)) (.cse30 (<= 7 ULTIMATE.start_main_~i~0)) (.cse44 (<= 0 (+ ULTIMATE.start_main_~y~0 7))) (.cse7 (<= ULTIMATE.start_main_~y~0 4)) (.cse47 (<= 4 ULTIMATE.start_main_~i~0)) (.cse38 (<= 0 (+ ULTIMATE.start_main_~y~0 2))) (.cse25 (<= 0 (+ ULTIMATE.start_main_~x~0 7))) (.cse23 (<= 10 ULTIMATE.start_main_~i~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse1 .cse8 .cse4 .cse5) (and .cse9 .cse10 .cse1 .cse11 .cse12 .cse4) (and .cse9 .cse1 .cse3 .cse13 .cse14 .cse4) (and .cse15 .cse9 .cse1 .cse11 .cse4 .cse5) (and .cse16 .cse17 .cse1 .cse3 .cse13 .cse5) (and .cse9 .cse1 .cse18 .cse19 .cse4 .cse5) (and .cse6 .cse1 .cse19 .cse4 .cse5 .cse20) (and .cse9 .cse1 .cse21 .cse4 .cse5 .cse22) (and .cse23 .cse9 .cse1 .cse3 .cse24 .cse25) (and .cse17 .cse26 .cse9 .cse1 .cse3 .cse11) (and (or (and .cse1 .cse27 .cse21 .cse4) (and .cse28 .cse1 .cse3 .cse21)) .cse9 .cse14) (and .cse17 .cse7 .cse1 .cse3 .cse11 .cse5) (and .cse29 .cse1 .cse30 .cse19 .cse4 .cse5) (and .cse6 .cse1 .cse3 .cse31 .cse5 .cse32) (and .cse33 .cse1 .cse3 .cse11 .cse34 .cse5) (and .cse6 .cse1 .cse2 .cse4 .cse5 .cse22) (and .cse6 .cse29 .cse17 .cse1 .cse3 .cse5) (and .cse33 .cse28 .cse0 .cse1 .cse3 .cse5) (and .cse35 .cse36) (and .cse1 .cse2 .cse19 .cse13 .cse4 .cse5) (and .cse16 (or (and .cse28 .cse1 .cse18 .cse3 .cse5) (and .cse1 .cse27 .cse18 .cse4 .cse5))) (and .cse1 .cse2 .cse37 .cse3 .cse13 .cse5) (and .cse6 .cse9 .cse10 .cse1 .cse38 .cse4) (and .cse1 .cse37 .cse3 .cse11 .cse5 .cse32) (and .cse5 (or (and .cse39 .cse9 .cse1 .cse27 .cse4) (and .cse39 .cse16 .cse1 .cse3 .cse4) (and .cse39 .cse28 .cse9 .cse1 .cse3))) (and (or (and .cse1 .cse27 .cse11 .cse4 .cse5) (and .cse28 .cse1 .cse3 .cse11 .cse5)) .cse20) (and .cse40 .cse33 .cse1 .cse13 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse34 .cse21 .cse5) (and .cse41 .cse26 .cse9 .cse1 .cse11 .cse4) (and .cse29 .cse23 .cse1 .cse8 .cse4 .cse5) (and .cse9 .cse42 .cse1 .cse3 .cse21 .cse12) (and .cse40 .cse9 .cse1 .cse38 .cse13 .cse4) (and .cse33 .cse0 .cse1 .cse27 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse31 .cse24 .cse21) (and .cse43 .cse44) (and .cse9 .cse1 .cse8 .cse21 .cse12 .cse4) (and .cse23 .cse33 .cse1 .cse3 .cse45 .cse5) (and .cse41 .cse9 .cse1 .cse13 .cse12 .cse4) (and .cse23 .cse26 .cse9 .cse1 .cse3 .cse34) (and .cse41 .cse9 .cse1 .cse30 .cse24 .cse4) (and .cse17 .cse1 .cse2 .cse30 .cse3 .cse5) (and .cse33 .cse41 .cse1 .cse21 .cse4 .cse5) (and .cse40 .cse1 .cse2 .cse21 .cse4 .cse5) (and .cse6 .cse9 .cse1 .cse24 .cse4 .cse22) (and (or (and .cse1 .cse27 .cse18 .cse4) (and .cse28 .cse1 .cse18 .cse3)) .cse9 .cse12) (and (or (and .cse0 .cse1 .cse27 .cse4) (and .cse28 .cse0 .cse1 .cse3)) .cse9 .cse38) (and .cse16 .cse41 .cse1 .cse13 .cse4 .cse5) (and .cse23 .cse1 .cse2 .cse3 .cse25 .cse5) (and .cse16 .cse1 .cse8 .cse21 .cse4 .cse5) (and .cse9 .cse1 .cse18 .cse38 .cse3 .cse4) (and .cse40 .cse23 .cse1 .cse4 .cse5 .cse20) (and .cse6 .cse7 .cse42 .cse1 .cse3 .cse5) (and .cse6 .cse9 .cse1 .cse3 .cse24 .cse34) (and .cse23 .cse9 .cse1 .cse3 .cse38 .cse45) (and .cse6 .cse26 .cse9 .cse42 .cse1 .cse3) (and .cse26 .cse9 .cse1 .cse27 .cse13 .cse4) (and .cse23 .cse15 .cse33 .cse1 .cse4 .cse5) (and .cse9 .cse1 .cse18 .cse37 .cse3 .cse5) (and .cse9 .cse1 .cse30 .cse3 .cse34 .cse12) (and (<= 0 (+ ULTIMATE.start_main_~y~0 9)) (and .cse28 .cse43)) (and .cse23 .cse16 .cse1 .cse46 .cse4 .cse5) (and .cse9 .cse1 .cse30 .cse3 .cse25 .cse5) (and .cse1 .cse2 .cse3 .cse31 .cse21 .cse5) (and .cse23 .cse1 .cse19 .cse4 .cse5) (and .cse28 .cse1 .cse2 .cse3 .cse47 .cse5) (and .cse1 .cse2 .cse27 .cse47 .cse4 .cse5) (and .cse16 .cse1 .cse3 .cse11 .cse25 .cse5) (and .cse23 .cse9 .cse1 .cse8 .cse14 .cse4) (and .cse33 .cse1 .cse11 .cse4 .cse5 .cse22) (and .cse33 .cse1 .cse3 .cse31 .cse13 .cse5) (and .cse9 .cse1 .cse30 .cse12 .cse4 .cse22) (and .cse29 .cse1 .cse3 .cse11 .cse31 .cse5) (and .cse23 .cse17 .cse9 .cse48 .cse1 .cse3) (and .cse40 .cse9 .cse1 .cse11 .cse14 .cse4) (and .cse6 .cse17 .cse9 .cse1 .cse3 .cse14) (and .cse29 .cse23 .cse42 .cse1 .cse3 .cse5) (and (or (and .cse9 .cse1 .cse30 .cse19 .cse4) (and .cse9 .cse1 .cse30 .cse37 .cse3)) .cse14) (and .cse28 .cse7 .cse1 .cse3 .cse13 .cse5) (and .cse6 .cse29 .cse41 .cse1 .cse4 .cse5) (and .cse9 .cse0 .cse1 .cse3 .cse31 .cse5) (and .cse41 .cse9 .cse1 .cse47 .cse4 .cse5) (and .cse33 .cse42 .cse1 .cse30 .cse3 .cse5) (and .cse33 .cse1 .cse19 .cse47 .cse4 .cse5) (and .cse9 .cse1 .cse10 .cse30 .cse4 .cse5) (and .cse17 .cse9 .cse1 .cse3 .cse38 .cse21) (and .cse7 .cse1 .cse30 .cse3 .cse31 .cse5) (and .cse33 .cse1 .cse30 .cse8 .cse4 .cse5) (and .cse7 .cse1 .cse19 .cse21 .cse4 .cse5) (and .cse23 .cse9 .cse1 .cse46 .cse12 .cse4) (and .cse17 .cse9 .cse1 .cse3 .cse47 .cse5) (and .cse41 .cse9 .cse1 .cse38 .cse21 .cse4) (and (or (and .cse1 .cse30 .cse27 .cse4 .cse5) (and .cse28 .cse1 .cse30 .cse3 .cse5)) .cse32) (and .cse29 .cse1 .cse30 .cse37 .cse3 .cse5) (and .cse33 .cse1 .cse37 .cse3 .cse47 .cse5) (and .cse26 .cse9 .cse1 .cse37 .cse3 .cse21) (and .cse16 .cse1 .cse3 .cse31 .cse47 .cse5) (and .cse23 .cse9 .cse1 .cse3 .cse49 .cse31) (and .cse40 .cse16 .cse1 .cse47 .cse4 .cse5) (and .cse26 .cse9 .cse1 .cse3 .cse47 .cse4) (and .cse16 .cse10 .cse1 .cse11 .cse4 .cse5) (and .cse29 .cse1 .cse3 .cse13 .cse4 .cse5) (and .cse6 .cse33 .cse10 .cse1 .cse4 .cse5) (or (and .cse28 .cse9 .cse48 .cse1 .cse30 .cse3) (and .cse9 .cse48 .cse1 .cse30 .cse27 .cse4)) (and .cse7 .cse1 .cse37 .cse3 .cse21 .cse5) (and .cse9 .cse42 .cse1 .cse30 .cse3 .cse38) (and .cse16 .cse1 .cse30 .cse4 .cse5 .cse22) (and .cse6 .cse33 .cse1 .cse3 .cse25 .cse5) (and .cse23 .cse41 .cse1 .cse4 .cse5 .cse32) (and .cse9 .cse48 .cse1 .cse11 .cse19 .cse4) (and .cse29 .cse28 .cse1 .cse3 .cse21 .cse5) (and .cse9 .cse1 .cse3 .cse31 .cse47 .cse12) (and .cse23 .cse15 .cse9 .cse1 .cse38 .cse4) (and .cse6 .cse16 .cse1 .cse3 .cse45 .cse5) (and .cse6 .cse16 .cse15 .cse1 .cse4 .cse5) (and .cse28 .cse26 .cse9 .cse1 .cse3 .cse13) (and .cse26 .cse9 .cse1 .cse30 .cse3 .cse31) (and .cse23 .cse16 .cse50 .cse1 .cse3 .cse5) (and .cse23 .cse9 .cse10 .cse1 .cse24 .cse4) (and .cse40 .cse29 .cse1 .cse11 .cse4 .cse5) (and .cse16 .cse0 .cse1 .cse19 .cse4 .cse5) (and .cse40 .cse6 .cse9 .cse48 .cse1 .cse4) (and (or (and .cse28 .cse9 .cse1 .cse3 .cse47) (and .cse9 .cse1 .cse27 .cse47 .cse4)) .cse24) (and .cse23 .cse10 .cse1 .cse2 .cse4 .cse5) (and .cse6 .cse41 .cse9 .cse1 .cse14 .cse4) (and .cse9 .cse0 .cse1 .cse3 .cse24 .cse4) (and .cse17 .cse9 .cse1 .cse3 .cse13 .cse12) (and .cse42 .cse1 .cse2 .cse3 .cse11 .cse5) (and .cse16 .cse1 .cse30 .cse3 .cse34 .cse5) (and .cse41 .cse1 .cse2 .cse30 .cse4 .cse5) (and .cse23 .cse7 .cse1 .cse4 .cse5 .cse22) (and .cse6 .cse9 .cse1 .cse3 (<= 0 (+ ULTIMATE.start_main_~x~0 9)) .cse5) (and .cse9 .cse1 .cse38 .cse19 .cse47 .cse4) (and .cse40 .cse9 .cse1 .cse24 .cse21 .cse4) (and .cse6 .cse15 .cse9 .cse1 .cse12 .cse4) (and .cse6 .cse9 .cse46 .cse1 .cse4 .cse5) (and .cse1 .cse11 .cse19 .cse4 .cse5 .cse32) (and .cse23 .cse1 .cse3 .cse31 .cse5 .cse20) (and .cse6 .cse9 .cse1 .cse3 .cse45 .cse12) (and .cse9 .cse1 .cse3 .cse11 .cse31 .cse14) (and .cse9 .cse42 .cse1 .cse3 .cse13 .cse5) (and .cse51 (<= 0 (+ ULTIMATE.start_main_~y~0 8)) .cse4) (and .cse9 .cse0 .cse1 .cse19 .cse12 .cse4) (and .cse9 .cse42 .cse1 .cse3 .cse11 .cse24) (and .cse1 .cse3 .cse21 .cse5 .cse4 .cse32) (and .cse9 .cse1 .cse3 .cse38 .cse31 .cse13) (and .cse9 .cse1 .cse30 .cse38 .cse8 .cse4) (and .cse33 .cse1 .cse18 .cse3 .cse4 .cse5) (and .cse40 .cse9 .cse0 .cse1 .cse4 .cse5) (and .cse23 .cse7 .cse1 .cse3 .cse34 .cse5) (and .cse23 .cse1 .cse37 .cse3 .cse5) (and .cse23 .cse17 .cse1 .cse3 .cse5 .cse32) (and .cse40 .cse26 .cse9 .cse1 .cse30 .cse4) (and .cse9 .cse1 .cse13 .cse8 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse4 .cse5 (<= 0 ULTIMATE.start_main_~i~0)) (and .cse16 .cse0 .cse1 .cse37 .cse3 .cse5) (and .cse1 .cse2 .cse11 .cse8 .cse4 .cse5) (and .cse9 .cse1 .cse11 .cse24 .cse8 .cse4) (and .cse9 .cse48 .cse1 .cse37 .cse3 .cse11) (and .cse40 .cse23 .cse9 .cse1 .cse49 .cse4) (and .cse26 .cse9 .cse1 .cse19 .cse21 .cse4) (and .cse33 .cse17 .cse1 .cse3 .cse21 .cse5) (and .cse9 .cse0 .cse1 .cse37 .cse3 .cse12) (and .cse6 .cse9 .cse48 .cse1 .cse3 .cse31) (and .cse23 .cse41 .cse9 .cse48 .cse1 .cse4) (and .cse1 .cse30 .cse3 .cse5 .cse4 .cse20) (and .cse40 .cse6 .cse1 .cse4 .cse5 .cse32) (and .cse1 .cse11 .cse3 .cse36 .cse5 .cse4) (and .cse23 .cse26 .cse9 .cse1 .cse4 .cse22) (or (and .cse9 .cse1 .cse37 .cse3 .cse13 .cse24) (and .cse9 .cse1 .cse19 .cse13 .cse24 .cse4)) (and .cse41 .cse7 .cse1 .cse11 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse11 .cse45 .cse5) (and .cse9 .cse1 .cse3 .cse11 .cse38 .cse34) (and .cse7 .cse1 .cse27 .cse13 .cse4 .cse5) (and .cse9 .cse1 .cse3 .cse11 .cse25 .cse12) (and .cse23 .cse50 .cse9 .cse1 .cse3 .cse12) (and .cse6 .cse26 .cse9 .cse1 .cse8 .cse4) (and .cse17 .cse9 .cse1 .cse30 .cse3 .cse24) (and .cse9 .cse48 .cse1 .cse3 .cse21 .cse4) (and .cse51 .cse44) (and .cse16 .cse42 .cse1 .cse3 .cse21 .cse5) (and .cse40 .cse9 .cse1 .cse47 .cse12 .cse4) (and .cse40 .cse7 .cse1 .cse30 .cse4 .cse5) (and .cse29 .cse1 .cse27 .cse21 .cse4 .cse5) (and .cse39 .cse9 .cse1 .cse3 .cse12 .cse4) (and .cse35 (<= ULTIMATE.start_main_~y~0 9) .cse4) (and .cse9 .cse1 .cse37 .cse3 .cse38 .cse47) (and .cse6 .cse1 .cse2 .cse3 .cse34 .cse5) (and .cse23 .cse9 .cse42 .cse1 .cse3 .cse14) (and .cse9 .cse1 .cse11 .cse38 .cse4 .cse22) (and .cse6 .cse1 .cse37 .cse3 .cse5 .cse20) (and .cse9 .cse1 .cse30 .cse3 .cse44 .cse4) (and .cse7 .cse1 .cse3 .cse47 .cse4 .cse5) (and .cse6 .cse9 .cse1 .cse3 .cse38 .cse25) (and .cse23 .cse9 .cse1 .cse4 .cse5)))) [2019-11-20 04:52:34,241 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-11-20 04:52:34,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:52:34 BoogieIcfgContainer [2019-11-20 04:52:34,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:52:34,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:52:34,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:52:34,310 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:52:34,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:50:16" (3/4) ... [2019-11-20 04:52:34,314 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 04:52:34,324 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 04:52:34,324 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 04:52:34,377 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_479174d8-7e21-407a-977d-08f39594a3a3/bin/uautomizer/witness.graphml [2019-11-20 04:52:34,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:52:34,379 INFO L168 Benchmark]: Toolchain (without parser) took 138986.36 ms. Allocated memory was 1.0 GB in the beginning and 4.4 GB in the end (delta: 3.3 GB). Free memory was 944.8 MB in the beginning and 894.3 MB in the end (delta: 50.5 MB). Peak memory consumption was 3.4 GB. Max. memory is 11.5 GB. [2019-11-20 04:52:34,379 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:52:34,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:52:34,380 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:52:34,380 INFO L168 Benchmark]: Boogie Preprocessor took 26.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-11-20 04:52:34,381 INFO L168 Benchmark]: RCFGBuilder took 341.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-20 04:52:34,381 INFO L168 Benchmark]: TraceAbstraction took 138260.37 ms. Allocated memory was 1.2 GB in the beginning and 4.4 GB in the end (delta: 3.2 GB). Free memory was 1.1 GB in the beginning and 917.5 MB in the end (delta: 179.1 MB). Peak memory consumption was 4.7 GB. Max. memory is 11.5 GB. [2019-11-20 04:52:34,382 INFO L168 Benchmark]: Witness Printer took 67.82 ms. Allocated memory is still 4.4 GB. Free memory was 917.5 MB in the beginning and 894.3 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 04:52:34,384 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 256.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 341.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 138260.37 ms. Allocated memory was 1.2 GB in the beginning and 4.4 GB in the end (delta: 3.2 GB). Free memory was 1.1 GB in the beginning and 917.5 MB in the end (delta: 179.1 MB). Peak memory consumption was 4.7 GB. Max. memory is 11.5 GB. * Witness Printer took 67.82 ms. Allocated memory is still 4.4 GB. Free memory was 917.5 MB in the beginning and 894.3 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 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: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((3 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x) && 0 <= y) || (((((9 <= i && y <= 4) && N <= 10) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && x <= 7) && N <= 10) && 8 <= i) && 0 <= y + 1) && 0 <= x)) || (((((y <= 0 && N <= 10) && x <= 0) && 5 <= i) && 0 <= y + 5) && 0 <= x)) || (((((x <= 8 && y <= 0) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 1 && 0 <= x + 4) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && x <= 2) && 0 <= x) && 0 <= y)) || (((((9 <= i && N <= 10) && x <= 2) && 0 <= x) && 0 <= y) && y <= 7)) || (((((y <= 0 && N <= 10) && 6 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x + 7)) || (((((0 <= x + 4 && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 8 <= i)) || ((((((N <= 10 && x <= 1) && 6 <= i) && 0 <= x) || (((0 <= x + 1 && N <= 10) && x <= 0) && 6 <= i)) && y <= 0) && 0 <= y + 5)) || (((((0 <= x + 4 && y <= 4) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y)) || (((((y <= 5 && N <= 10) && 7 <= i) && x <= 2) && 0 <= x) && 0 <= y)) || (((((9 <= i && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y) && y <= 6)) || (((((y <= 2 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 6) && 0 <= y)) || (((((9 <= i && N <= 10) && y <= 3) && 0 <= x) && 0 <= y) && x <= 6)) || (((((9 <= i && y <= 5) && 0 <= x + 4) && N <= 10) && x <= 0) && 0 <= y)) || (((((y <= 2 && 0 <= x + 1) && 3 <= i) && N <= 10) && x <= 0) && 0 <= y)) || ((((((9 <= i && 0 <= x + 1) && N <= 10) && x <= 0) && 0 <= y) || ((((9 <= i && N <= 10) && x <= 1) && 0 <= x) && 0 <= y)) && y <= 8)) || (((((N <= 10 && y <= 3) && x <= 2) && 5 <= i) && 0 <= x) && 0 <= y)) || (y <= 1 && (((((0 <= x + 1 && N <= 10) && 2 <= i) && x <= 0) && 0 <= y) || ((((N <= 10 && x <= 1) && 2 <= i) && 0 <= x) && 0 <= y)))) || (((((N <= 10 && y <= 3) && 0 <= x + 2) && x <= 0) && 5 <= i) && 0 <= y)) || (((((9 <= i && y <= 0) && x <= 7) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((N <= 10 && 0 <= x + 2) && x <= 0) && 8 <= i) && 0 <= y) && y <= 6)) || (0 <= y && ((((((1 <= i && y <= 0) && N <= 10) && x <= 1) && 0 <= x) || ((((1 <= i && y <= 1) && N <= 10) && x <= 0) && 0 <= x)) || ((((1 <= i && 0 <= x + 1) && y <= 0) && N <= 10) && x <= 0)))) || ((((((N <= 10 && x <= 1) && 8 <= i) && 0 <= x) && 0 <= y) || ((((0 <= x + 1 && N <= 10) && x <= 0) && 8 <= i) && 0 <= y)) && y <= 7)) || (((((x <= 3 && y <= 2) && N <= 10) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 6) && 6 <= i) && 0 <= y)) || (((((x <= 4 && 0 <= y + 4) && y <= 0) && N <= 10) && 8 <= i) && 0 <= x)) || (((((y <= 5 && 10 <= i) && N <= 10) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y + 1)) || (((((x <= 3 && y <= 0) && N <= 10) && 0 <= y + 2) && 5 <= i) && 0 <= x)) || (((((y <= 2 && 3 <= i) && N <= 10) && x <= 1) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y + 3) && 6 <= i)) || (((((((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 && N <= 10) && x <= 5) && 6 <= i) && 0 <= y + 1) && 0 <= x)) || (((((10 <= i && y <= 2) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 5 <= i) && 0 <= y + 1) && 0 <= x)) || (((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 6)) || (((((x <= 4 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 3) && 0 <= x)) || (((((0 <= x + 4 && N <= 10) && y <= 3) && 7 <= i) && x <= 0) && 0 <= y)) || (((((y <= 2 && x <= 4) && N <= 10) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((x <= 3 && N <= 10) && y <= 3) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x) && x <= 6)) || ((((((N <= 10 && x <= 1) && 2 <= i) && 0 <= x) || (((0 <= x + 1 && N <= 10) && 2 <= i) && x <= 0)) && y <= 0) && 0 <= y + 1)) || ((((((3 <= i && N <= 10) && x <= 1) && 0 <= x) || (((0 <= x + 1 && 3 <= i) && N <= 10) && x <= 0)) && y <= 0) && 0 <= y + 2)) || (((((y <= 1 && x <= 4) && N <= 10) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((y <= 1 && N <= 10) && x <= 5) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && 0 <= y + 2) && x <= 0) && 0 <= x)) || (((((x <= 3 && 10 <= i) && N <= 10) && 0 <= x) && 0 <= y) && y <= 7)) || (((((9 <= i && y <= 4) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x + 6)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 8)) || (((((9 <= i && 0 <= y + 4) && y <= 0) && 0 <= x + 5) && N <= 10) && x <= 0)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 1) && 5 <= i) && 0 <= x)) || (((((10 <= i && x <= 8) && y <= 2) && N <= 10) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 2 <= i) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 6) && 0 <= y + 1)) || (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)))) || (((((10 <= i && y <= 1) && N <= 10) && x <= 9) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((N <= 10 && y <= 3) && x <= 0) && 0 <= x + 3) && 6 <= i) && 0 <= y)) || ((((10 <= i && N <= 10) && x <= 2) && 0 <= x) && 0 <= y)) || (((((0 <= x + 1 && N <= 10) && y <= 3) && x <= 0) && 4 <= i) && 0 <= y)) || (((((N <= 10 && y <= 3) && x <= 1) && 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 <= 5) && 0 <= y + 5) && 0 <= x)) || (((((y <= 2 && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((y <= 2 && N <= 10) && x <= 0) && 0 <= x + 3) && 5 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && 7 <= i) && 0 <= y + 1) && 0 <= x) && x <= 6)) || (((((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)) || (((((x <= 3 && y <= 0) && N <= 10) && 8 <= i) && 0 <= y + 5) && 0 <= x)) || (((((9 <= i && 0 <= x + 4) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 5)) || (((((y <= 5 && 10 <= i) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y)) || ((((((y <= 0 && N <= 10) && 7 <= i) && x <= 2) && 0 <= x) || ((((y <= 0 && N <= 10) && 7 <= i) && 0 <= x + 2) && x <= 0)) && 0 <= y + 5)) || (((((0 <= x + 1 && y <= 4) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || (((((9 <= i && y <= 5) && x <= 4) && N <= 10) && 0 <= x) && 0 <= y)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 2 && 0 <= x + 5) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y)) || (((((y <= 2 && N <= 10) && x <= 2) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 7) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 6 <= i)) || (((((y <= 4 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 3) && 0 <= y)) || (((((y <= 2 && N <= 10) && 7 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 4 && N <= 10) && x <= 2) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 9) && 0 <= y + 1) && 0 <= x)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) && 0 <= y)) || (((((x <= 4 && y <= 0) && N <= 10) && 0 <= y + 2) && 6 <= i) && 0 <= x)) || ((((((N <= 10 && 7 <= i) && x <= 1) && 0 <= x) && 0 <= y) || ((((0 <= x + 1 && N <= 10) && 7 <= i) && x <= 0) && 0 <= y)) && y <= 6)) || (((((y <= 5 && N <= 10) && 7 <= i) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((y <= 2 && N <= 10) && 0 <= x + 2) && x <= 0) && 4 <= i) && 0 <= y)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && 0 <= x + 2) && x <= 0) && 6 <= i)) || (((((y <= 1 && N <= 10) && x <= 0) && 0 <= x + 3) && 4 <= i) && 0 <= y)) || (((((10 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2147483648) && 0 <= x + 3)) || (((((x <= 3 && y <= 1) && N <= 10) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) && 0 <= x)) || (((((y <= 1 && x <= 7) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 5 && N <= 10) && x <= 0) && 5 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 2) && x <= 7) && N <= 10) && 0 <= x) && 0 <= y)) || (((((0 <= x + 1 && y <= 0) && 0 <= y + 6) && N <= 10) && 7 <= i) && x <= 0) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 7 <= i) && x <= 1) && 0 <= x)) || (((((y <= 4 && N <= 10) && 0 <= x + 2) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 2)) || (((((y <= 1 && N <= 10) && 7 <= i) && 0 <= x) && 0 <= y) && x <= 6)) || (((((9 <= i && y <= 2) && N <= 10) && x <= 0) && 0 <= x + 7) && 0 <= y)) || (((((10 <= i && x <= 4) && N <= 10) && 0 <= x) && 0 <= y) && y <= 6)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 8 <= i) && x <= 2) && 0 <= x)) || (((((y <= 5 && 0 <= x + 1) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x + 3) && 4 <= i) && 0 <= y + 1)) || (((((10 <= i && x <= 8) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((9 <= i && y <= 1) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y)) || (((((9 <= i && y <= 1) && x <= 8) && N <= 10) && 0 <= x) && 0 <= y)) || (((((0 <= x + 1 && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 0) && 5 <= i)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 3)) || (((((10 <= i && y <= 1) && 0 <= x + 2147483648) && N <= 10) && x <= 0) && 0 <= y)) || (((((10 <= i && y <= 0) && x <= 7) && N <= 10) && 0 <= y + 3) && 0 <= x)) || (((((x <= 3 && y <= 5) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 1 && 3 <= i) && N <= 10) && x <= 2) && 0 <= x) && 0 <= y)) || (((((x <= 3 && 9 <= i) && y <= 0) && 0 <= y + 6) && N <= 10) && 0 <= x)) || ((((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 4 <= i) || ((((y <= 0 && N <= 10) && x <= 1) && 4 <= i) && 0 <= x)) && 0 <= y + 3)) || (((((10 <= i && x <= 7) && N <= 10) && y <= 3) && 0 <= x) && 0 <= y)) || (((((9 <= i && x <= 4) && y <= 0) && N <= 10) && 0 <= y + 5) && 0 <= x)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 0) && 0 <= y + 3) && 0 <= x)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y + 1)) || (((((0 <= x + 5 && N <= 10) && y <= 3) && x <= 0) && 8 <= i) && 0 <= y)) || (((((y <= 1 && N <= 10) && 7 <= i) && x <= 0) && 0 <= x + 6) && 0 <= y)) || (((((x <= 4 && N <= 10) && y <= 3) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 4) && N <= 10) && 0 <= x) && 0 <= y) && x <= 6)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 9) && 0 <= y)) || (((((y <= 0 && N <= 10) && 0 <= y + 2) && x <= 2) && 4 <= i) && 0 <= x)) || (((((x <= 3 && y <= 0) && N <= 10) && 0 <= y + 3) && 6 <= i) && 0 <= x)) || (((((9 <= i && x <= 8) && y <= 0) && N <= 10) && 0 <= y + 1) && 0 <= x)) || (((((9 <= i && y <= 0) && x <= 9) && N <= 10) && 0 <= x) && 0 <= y)) || (((((N <= 10 && 8 <= i) && x <= 2) && 0 <= x) && 0 <= y) && y <= 6)) || (((((10 <= i && N <= 10) && x <= 0) && 0 <= x + 3) && 0 <= y) && y <= 7)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= x + 8) && 0 <= y + 1)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 3) && 0 <= y + 5)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 5 <= i) && 0 <= y)) || ((((((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2147483648) || (((((y <= 0 && N <= 10) && x <= 1) && 8 <= i) && 0 <= y + 2147483648) && 0 <= x)) && 0 <= y + 8) && 0 <= x)) || (((((y <= 0 && 3 <= i) && N <= 10) && x <= 2) && 0 <= y + 1) && 0 <= x)) || (((((y <= 0 && 0 <= x + 5) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 3)) || (((((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 <= 0 && N <= 10) && 7 <= i) && 0 <= y + 2) && x <= 5) && 0 <= x)) || (((((y <= 2 && N <= 10) && 2 <= i) && x <= 0) && 0 <= x) && 0 <= y)) || (((((x <= 3 && y <= 0) && 3 <= i) && N <= 10) && 0 <= x) && 0 <= y)) || (((((10 <= i && y <= 4) && N <= 10) && x <= 0) && 0 <= x + 6) && 0 <= y)) || ((((10 <= i && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((10 <= i && 0 <= x + 4) && N <= 10) && x <= 0) && 0 <= y) && y <= 6)) || (((((x <= 3 && 0 <= y + 4) && y <= 0) && N <= 10) && 7 <= i) && 0 <= x)) || (((((y <= 0 && N <= 10) && 5 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 0 <= x) && 0 <= y) && 0 <= i)) || (((((y <= 1 && 3 <= i) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y)) || (((((N <= 10 && y <= 3) && 8 <= i) && x <= 5) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && 8 <= i) && 0 <= y + 3) && x <= 5) && 0 <= x)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && 0 <= x + 2) && x <= 0) && 8 <= i)) || (((((x <= 3 && 10 <= i) && y <= 0) && N <= 10) && 0 <= y + 2147483648) && 0 <= x)) || (((((0 <= y + 4 && y <= 0) && N <= 10) && x <= 2) && 6 <= i) && 0 <= x)) || (((((y <= 2 && 0 <= x + 4) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((y <= 0 && 3 <= i) && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 1)) || (((((9 <= i && y <= 0) && 0 <= y + 6) && N <= 10) && x <= 0) && 0 <= x + 3)) || (((((10 <= i && x <= 4) && y <= 0) && 0 <= y + 6) && N <= 10) && 0 <= x)) || (((((N <= 10 && 7 <= i) && x <= 0) && 0 <= y) && 0 <= x) && y <= 7)) || (((((x <= 3 && 9 <= i) && N <= 10) && 0 <= x) && 0 <= y) && y <= 6)) || (((((N <= 10 && 8 <= i) && x <= 0) && y <= 8) && 0 <= y) && 0 <= x)) || (((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && 0 <= x) && x <= 6)) || (((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 5 <= i) && 0 <= y + 3) || (((((y <= 0 && N <= 10) && x <= 2) && 5 <= i) && 0 <= y + 3) && 0 <= x)) || (((((x <= 4 && y <= 4) && N <= 10) && 8 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 0 && N <= 10) && x <= 0) && 8 <= i) && 0 <= x + 8) && 0 <= y)) || (((((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) && x <= 0) && 8 <= i) && 0 <= x + 7) && 0 <= y + 1)) || (((((10 <= i && 0 <= x + 2147483648) && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 1)) || (((((9 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 5) && 0 <= x)) || (((((0 <= x + 4 && y <= 0) && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 3)) || (((((y <= 0 && 0 <= y + 6) && N <= 10) && x <= 0) && 6 <= i) && 0 <= x)) || (((((((0 <= x + 1 && y <= 0) && N <= 10) && x <= 0) && 8 <= i) && 0 <= y + 2147483648) || (((((y <= 0 && N <= 10) && x <= 1) && 8 <= i) && 0 <= y + 2147483648) && 0 <= x)) && 0 <= y + 7)) || (((((y <= 1 && 0 <= x + 5) && N <= 10) && x <= 0) && 6 <= i) && 0 <= y)) || (((((x <= 3 && y <= 0) && N <= 10) && 4 <= i) && 0 <= y + 1) && 0 <= x)) || (((((x <= 3 && y <= 4) && N <= 10) && 7 <= i) && 0 <= x) && 0 <= y)) || (((((y <= 5 && N <= 10) && x <= 1) && 6 <= i) && 0 <= x) && 0 <= y)) || (((((1 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 1) && 0 <= x)) || (((((((9 <= i && 0 <= x + 1) && N <= 10) && x <= 0) && 0 <= y) || ((((9 <= i && N <= 10) && x <= 1) && 0 <= x) && 0 <= y)) && y <= 9) && 0 <= x)) || (((((y <= 0 && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y + 2) && 4 <= i)) || (((((9 <= i && N <= 10) && y <= 3) && x <= 0) && 0 <= x + 6) && 0 <= y)) || (((((10 <= i && y <= 0) && 0 <= x + 5) && N <= 10) && x <= 0) && 0 <= y + 5)) || (((((y <= 0 && N <= 10) && 8 <= i) && 0 <= y + 2) && 0 <= x) && x <= 6)) || (((((9 <= i && N <= 10) && 0 <= x + 2) && x <= 0) && 0 <= y) && y <= 7)) || (((((y <= 0 && N <= 10) && 7 <= i) && x <= 0) && 0 <= y + 7) && 0 <= x)) || (((((y <= 4 && N <= 10) && x <= 0) && 4 <= i) && 0 <= x) && 0 <= y)) || (((((9 <= i && y <= 0) && N <= 10) && x <= 0) && 0 <= y + 2) && 0 <= x + 7)) || ((((10 <= i && y <= 0) && N <= 10) && 0 <= x) && 0 <= y) - 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: 138.1s, OverallIterations: 47, TraceHistogramMax: 11, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 107.5s, HoareTripleCheckerStatistics: 1231 SDtfs, 5757 SDslu, 4420 SDs, 0 SdLazy, 1307 SolverSat, 863 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2197 GetRequests, 1950 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.9s 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: 7.8s AutomataMinimizationTime, 47 MinimizatonAttempts, 130578 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 1768 NumberOfFragments, 4435 HoareAnnotationTreeSize, 2 FomulaSimplifications, 58518 FormulaSimplificationTreeSizeReduction, 21.9s HoareSimplificationTime, 2 FomulaSimplificationsInter, 66442 FormulaSimplificationTreeSizeReductionInter, 85.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.1s 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...