./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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-cad4683 [2019-11-15 21:12:51,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:12:51,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:12:51,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:12:51,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:12:51,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:12:51,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:12:51,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:12:51,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:12:51,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:12:51,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:12:51,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:12:51,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:12:51,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:12:51,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:12:51,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:12:51,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:12:51,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:12:51,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:12:51,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:12:51,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:12:51,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:12:51,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:12:51,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:12:51,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:12:51,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:12:51,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:12:51,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:12:51,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:12:51,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:12:51,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:12:51,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:12:51,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:12:51,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:12:51,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:12:51,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:12:51,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:12:51,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:12:51,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:12:51,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:12:51,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:12:51,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-15 21:12:51,800 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:12:51,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:12:51,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:12:51,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:12:51,802 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:12:51,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:12:51,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:12:51,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:12:51,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:12:51,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:12:51,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:12:51,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:12:51,804 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-15 21:12:51,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:12:51,804 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:12:51,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:12:51,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:12:51,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:12:51,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:12:51,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:12:51,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:12:51,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:12:51,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:12:51,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:12:51,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:12:51,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:12:51,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:12:51,807 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_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:51,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:12:51,841 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:12:51,845 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:12:51,846 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:12:51,847 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:12:51,848 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2019-11-15 21:12:51,902 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/data/02dd80e65/4f33a86523494dbb9eaaeb00b31bd185/FLAG35384f6c7 [2019-11-15 21:12:52,301 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:12:52,301 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2019-11-15 21:12:52,309 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/data/02dd80e65/4f33a86523494dbb9eaaeb00b31bd185/FLAG35384f6c7 [2019-11-15 21:12:52,325 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/data/02dd80e65/4f33a86523494dbb9eaaeb00b31bd185 [2019-11-15 21:12:52,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:12:52,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:12:52,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:12:52,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:12:52,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:12:52,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:12:52" (1/1) ... [2019-11-15 21:12:52,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ebe14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52, skipping insertion in model container [2019-11-15 21:12:52,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:12:52" (1/1) ... [2019-11-15 21:12:52,344 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:12:52,358 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:12:52,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:12:52,482 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:12:52,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:12:52,565 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:12:52,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52 WrapperNode [2019-11-15 21:12:52,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:12:52,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:12:52,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:12:52,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:12:52,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52" (1/1) ... [2019-11-15 21:12:52,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52" (1/1) ... [2019-11-15 21:12:52,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:12:52,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:12:52,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:12:52,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:12:52,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52" (1/1) ... [2019-11-15 21:12:52,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52" (1/1) ... [2019-11-15 21:12:52,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52" (1/1) ... [2019-11-15 21:12:52,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52" (1/1) ... [2019-11-15 21:12:52,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52" (1/1) ... [2019-11-15 21:12:52,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52" (1/1) ... [2019-11-15 21:12:52,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52" (1/1) ... [2019-11-15 21:12:52,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:12:52,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:12:52,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:12:52,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:12:52,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:12:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:12:52,948 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:12:52,948 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 21:12:52,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:12:52 BoogieIcfgContainer [2019-11-15 21:12:52,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:12:52,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:12:52,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:12:52,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:12:52,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:12:52" (1/3) ... [2019-11-15 21:12:52,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7994caa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:12:52, skipping insertion in model container [2019-11-15 21:12:52,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:52" (2/3) ... [2019-11-15 21:12:52,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7994caa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:12:52, skipping insertion in model container [2019-11-15 21:12:52,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:12:52" (3/3) ... [2019-11-15 21:12:52,956 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random2d.c [2019-11-15 21:12:52,965 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:12:52,971 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-11-15 21:12:52,980 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-11-15 21:12:53,017 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:12:53,017 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:12:53,018 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:12:53,018 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:12:53,018 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:12:53,018 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:12:53,018 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:12:53,019 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:12:53,032 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-11-15 21:12:53,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 21:12:53,038 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:53,039 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 21:12:53,041 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:53,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:53,047 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-15 21:12:53,055 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:53,056 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240885596] [2019-11-15 21:12:53,056 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,056 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:53,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:53,187 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240885596] [2019-11-15 21:12:53,188 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:12:53,189 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:12:53,189 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556455595] [2019-11-15 21:12:53,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:12:53,194 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:53,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:12:53,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:12:53,206 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2019-11-15 21:12:53,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:53,253 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2019-11-15 21:12:53,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:12:53,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-15 21:12:53,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:53,265 INFO L225 Difference]: With dead ends: 43 [2019-11-15 21:12:53,266 INFO L226 Difference]: Without dead ends: 30 [2019-11-15 21:12:53,269 INFO L600 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 [2019-11-15 21:12:53,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-15 21:12:53,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-11-15 21:12:53,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-15 21:12:53,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-15 21:12:53,300 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 3 [2019-11-15 21:12:53,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:53,301 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-15 21:12:53,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:12:53,301 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-15 21:12:53,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-15 21:12:53,301 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:53,301 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-15 21:12:53,302 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:53,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:53,302 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-11-15 21:12:53,303 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:53,303 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798583776] [2019-11-15 21:12:53,303 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,303 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:53,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:53,336 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798583776] [2019-11-15 21:12:53,336 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:12:53,336 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:12:53,336 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408936019] [2019-11-15 21:12:53,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:12:53,338 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:53,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:12:53,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:12:53,339 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 3 states. [2019-11-15 21:12:53,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:53,350 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-11-15 21:12:53,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:12:53,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-15 21:12:53,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:53,351 INFO L225 Difference]: With dead ends: 29 [2019-11-15 21:12:53,351 INFO L226 Difference]: Without dead ends: 28 [2019-11-15 21:12:53,352 INFO L600 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 [2019-11-15 21:12:53,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-15 21:12:53,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-15 21:12:53,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-15 21:12:53,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-11-15 21:12:53,357 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 4 [2019-11-15 21:12:53,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:53,357 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-11-15 21:12:53,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:12:53,358 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-11-15 21:12:53,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 21:12:53,358 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:53,358 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:12:53,359 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:53,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:53,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1366845466, now seen corresponding path program 1 times [2019-11-15 21:12:53,359 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:53,360 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861807789] [2019-11-15 21:12:53,360 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,360 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:53,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:53,392 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861807789] [2019-11-15 21:12:53,392 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:12:53,393 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:12:53,393 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341060613] [2019-11-15 21:12:53,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:12:53,393 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:53,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:12:53,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:12:53,394 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2019-11-15 21:12:53,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:53,424 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2019-11-15 21:12:53,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:12:53,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-15 21:12:53,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:53,426 INFO L225 Difference]: With dead ends: 51 [2019-11-15 21:12:53,426 INFO L226 Difference]: Without dead ends: 49 [2019-11-15 21:12:53,427 INFO L600 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 [2019-11-15 21:12:53,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-15 21:12:53,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2019-11-15 21:12:53,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-15 21:12:53,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2019-11-15 21:12:53,434 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 7 [2019-11-15 21:12:53,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:53,434 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2019-11-15 21:12:53,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:12:53,434 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2019-11-15 21:12:53,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 21:12:53,435 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:53,435 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-15 21:12:53,436 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:53,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:53,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1366808307, now seen corresponding path program 1 times [2019-11-15 21:12:53,436 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:53,436 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611327285] [2019-11-15 21:12:53,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:53,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:53,475 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611327285] [2019-11-15 21:12:53,475 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605547972] [2019-11-15 21:12:53,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:53,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:12:53,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:53,524 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:53,524 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:12:53,525 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327329497] [2019-11-15 21:12:53,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:12:53,525 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:53,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:12:53,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:12:53,526 INFO L87 Difference]: Start difference. First operand 43 states and 59 transitions. Second operand 4 states. [2019-11-15 21:12:53,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:53,558 INFO L93 Difference]: Finished difference Result 70 states and 92 transitions. [2019-11-15 21:12:53,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:12:53,559 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-15 21:12:53,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:53,560 INFO L225 Difference]: With dead ends: 70 [2019-11-15 21:12:53,561 INFO L226 Difference]: Without dead ends: 69 [2019-11-15 21:12:53,561 INFO L600 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 [2019-11-15 21:12:53,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-15 21:12:53,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2019-11-15 21:12:53,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-15 21:12:53,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions. [2019-11-15 21:12:53,576 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 7 [2019-11-15 21:12:53,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:53,576 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 88 transitions. [2019-11-15 21:12:53,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:12:53,576 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions. [2019-11-15 21:12:53,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-15 21:12:53,579 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:53,579 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:12:53,779 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:53,784 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:53,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:53,784 INFO L82 PathProgramCache]: Analyzing trace with hash 577463568, now seen corresponding path program 1 times [2019-11-15 21:12:53,784 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:53,785 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467330098] [2019-11-15 21:12:53,785 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,785 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:53,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:53,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467330098] [2019-11-15 21:12:53,826 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:12:53,826 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:12:53,826 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843104690] [2019-11-15 21:12:53,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:12:53,827 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:53,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:12:53,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:12:53,828 INFO L87 Difference]: Start difference. First operand 61 states and 88 transitions. Second operand 3 states. [2019-11-15 21:12:53,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:53,876 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2019-11-15 21:12:53,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:12:53,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-15 21:12:53,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:53,878 INFO L225 Difference]: With dead ends: 101 [2019-11-15 21:12:53,878 INFO L226 Difference]: Without dead ends: 99 [2019-11-15 21:12:53,879 INFO L600 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 [2019-11-15 21:12:53,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-11-15 21:12:53,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2019-11-15 21:12:53,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-11-15 21:12:53,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions. [2019-11-15 21:12:53,894 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 8 [2019-11-15 21:12:53,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:53,895 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 141 transitions. [2019-11-15 21:12:53,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:12:53,895 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions. [2019-11-15 21:12:53,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 21:12:53,896 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:53,896 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:12:53,896 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:53,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:53,897 INFO L82 PathProgramCache]: Analyzing trace with hash 721693167, now seen corresponding path program 1 times [2019-11-15 21:12:53,897 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:53,897 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32306439] [2019-11-15 21:12:53,897 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,897 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:53,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:53,934 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32306439] [2019-11-15 21:12:53,935 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:12:53,935 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:12:53,935 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643295964] [2019-11-15 21:12:53,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:12:53,936 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:53,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:12:53,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:12:53,936 INFO L87 Difference]: Start difference. First operand 94 states and 141 transitions. Second operand 3 states. [2019-11-15 21:12:53,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:53,968 INFO L93 Difference]: Finished difference Result 165 states and 252 transitions. [2019-11-15 21:12:53,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:12:53,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-15 21:12:53,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:53,972 INFO L225 Difference]: With dead ends: 165 [2019-11-15 21:12:53,972 INFO L226 Difference]: Without dead ends: 163 [2019-11-15 21:12:53,973 INFO L600 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 [2019-11-15 21:12:53,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-15 21:12:53,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 154. [2019-11-15 21:12:53,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-15 21:12:53,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 234 transitions. [2019-11-15 21:12:53,995 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 234 transitions. Word has length 9 [2019-11-15 21:12:53,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:53,995 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 234 transitions. [2019-11-15 21:12:53,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:12:53,996 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 234 transitions. [2019-11-15 21:12:53,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 21:12:53,996 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:53,996 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:12:53,997 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:53,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:53,997 INFO L82 PathProgramCache]: Analyzing trace with hash 897651769, now seen corresponding path program 1 times [2019-11-15 21:12:53,997 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:53,998 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561727899] [2019-11-15 21:12:53,998 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,999 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:53,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:54,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:54,021 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561727899] [2019-11-15 21:12:54,022 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:12:54,022 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:12:54,022 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446063854] [2019-11-15 21:12:54,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:12:54,022 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:54,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:12:54,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:12:54,023 INFO L87 Difference]: Start difference. First operand 154 states and 234 transitions. Second operand 3 states. [2019-11-15 21:12:54,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:54,064 INFO L93 Difference]: Finished difference Result 283 states and 438 transitions. [2019-11-15 21:12:54,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:12:54,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-15 21:12:54,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:54,066 INFO L225 Difference]: With dead ends: 283 [2019-11-15 21:12:54,067 INFO L226 Difference]: Without dead ends: 281 [2019-11-15 21:12:54,067 INFO L600 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 [2019-11-15 21:12:54,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-11-15 21:12:54,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 276. [2019-11-15 21:12:54,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-11-15 21:12:54,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 424 transitions. [2019-11-15 21:12:54,092 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 424 transitions. Word has length 10 [2019-11-15 21:12:54,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:54,092 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 424 transitions. [2019-11-15 21:12:54,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:12:54,093 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 424 transitions. [2019-11-15 21:12:54,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 21:12:54,093 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:54,093 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1] [2019-11-15 21:12:54,094 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:54,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:54,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1830298297, now seen corresponding path program 2 times [2019-11-15 21:12:54,094 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:54,095 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021629387] [2019-11-15 21:12:54,095 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:54,095 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:54,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:54,138 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-15 21:12:54,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021629387] [2019-11-15 21:12:54,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812633883] [2019-11-15 21:12:54,139 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-15 21:12:54,175 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-15 21:12:54,175 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:12:54,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:12:54,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:54,180 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-15 21:12:54,182 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:54,182 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:12:54,183 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573898661] [2019-11-15 21:12:54,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:12:54,184 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:54,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:12:54,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:12:54,185 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 [2019-11-15 21:12:54,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:54,224 INFO L93 Difference]: Finished difference Result 276 states and 424 transitions. [2019-11-15 21:12:54,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:12:54,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-15 21:12:54,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:54,227 INFO L225 Difference]: With dead ends: 276 [2019-11-15 21:12:54,228 INFO L226 Difference]: Without dead ends: 275 [2019-11-15 21:12:54,228 INFO L600 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 [2019-11-15 21:12:54,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-11-15 21:12:54,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 249. [2019-11-15 21:12:54,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2019-11-15 21:12:54,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 377 transitions. [2019-11-15 21:12:54,265 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 377 transitions. Word has length 11 [2019-11-15 21:12:54,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:54,269 INFO L462 AbstractCegarLoop]: Abstraction has 249 states and 377 transitions. [2019-11-15 21:12:54,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:12:54,269 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 377 transitions. [2019-11-15 21:12:54,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 21:12:54,270 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:54,270 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-11-15 21:12:54,470 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:54,477 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:54,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:54,477 INFO L82 PathProgramCache]: Analyzing trace with hash -795491305, now seen corresponding path program 1 times [2019-11-15 21:12:54,477 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:54,478 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023496569] [2019-11-15 21:12:54,478 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:54,478 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:54,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:54,519 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:54,520 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023496569] [2019-11-15 21:12:54,520 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024800471] [2019-11-15 21:12:54,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:54,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:12:54,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:54,552 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:54,552 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:12:54,552 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425198891] [2019-11-15 21:12:54,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:12:54,553 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:54,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:12:54,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:12:54,554 INFO L87 Difference]: Start difference. First operand 249 states and 377 transitions. Second operand 4 states. [2019-11-15 21:12:54,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:54,609 INFO L93 Difference]: Finished difference Result 449 states and 688 transitions. [2019-11-15 21:12:54,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:12:54,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-15 21:12:54,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:54,612 INFO L225 Difference]: With dead ends: 449 [2019-11-15 21:12:54,613 INFO L226 Difference]: Without dead ends: 447 [2019-11-15 21:12:54,613 INFO L600 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 [2019-11-15 21:12:54,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-11-15 21:12:54,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 357. [2019-11-15 21:12:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-11-15 21:12:54,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 543 transitions. [2019-11-15 21:12:54,631 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 543 transitions. Word has length 14 [2019-11-15 21:12:54,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:54,640 INFO L462 AbstractCegarLoop]: Abstraction has 357 states and 543 transitions. [2019-11-15 21:12:54,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:12:54,640 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 543 transitions. [2019-11-15 21:12:54,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 21:12:54,641 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:54,642 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:12:54,853 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:54,853 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:54,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:54,853 INFO L82 PathProgramCache]: Analyzing trace with hash 592160614, now seen corresponding path program 1 times [2019-11-15 21:12:54,854 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:54,854 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566000458] [2019-11-15 21:12:54,854 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:54,854 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:54,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:54,884 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:54,884 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566000458] [2019-11-15 21:12:54,884 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651593191] [2019-11-15 21:12:54,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:54,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:12:54,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:54,925 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:54,926 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 21:12:54,926 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-11-15 21:12:54,926 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750414020] [2019-11-15 21:12:54,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:12:54,926 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:54,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:12:54,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:12:54,927 INFO L87 Difference]: Start difference. First operand 357 states and 543 transitions. Second operand 3 states. [2019-11-15 21:12:54,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:54,948 INFO L93 Difference]: Finished difference Result 357 states and 543 transitions. [2019-11-15 21:12:54,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:12:54,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-15 21:12:54,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:54,951 INFO L225 Difference]: With dead ends: 357 [2019-11-15 21:12:54,951 INFO L226 Difference]: Without dead ends: 356 [2019-11-15 21:12:54,952 INFO L600 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 [2019-11-15 21:12:54,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-11-15 21:12:54,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-11-15 21:12:54,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-11-15 21:12:54,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 535 transitions. [2019-11-15 21:12:54,965 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 535 transitions. Word has length 16 [2019-11-15 21:12:54,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:54,965 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 535 transitions. [2019-11-15 21:12:54,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:12:54,966 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 535 transitions. [2019-11-15 21:12:54,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 21:12:54,967 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:54,967 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-11-15 21:12:55,169 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:55,170 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:55,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:55,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1177295603, now seen corresponding path program 1 times [2019-11-15 21:12:55,170 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:55,170 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882386712] [2019-11-15 21:12:55,170 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:55,171 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:55,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:55,224 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:55,224 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882386712] [2019-11-15 21:12:55,224 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229802157] [2019-11-15 21:12:55,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:55,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:12:55,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:55,258 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:55,258 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:55,258 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:12:55,258 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405317091] [2019-11-15 21:12:55,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:12:55,259 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:55,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:12:55,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:12:55,260 INFO L87 Difference]: Start difference. First operand 356 states and 535 transitions. Second operand 4 states. [2019-11-15 21:12:55,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:55,315 INFO L93 Difference]: Finished difference Result 609 states and 919 transitions. [2019-11-15 21:12:55,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:12:55,316 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-15 21:12:55,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:55,320 INFO L225 Difference]: With dead ends: 609 [2019-11-15 21:12:55,320 INFO L226 Difference]: Without dead ends: 608 [2019-11-15 21:12:55,322 INFO L600 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 [2019-11-15 21:12:55,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-11-15 21:12:55,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 464. [2019-11-15 21:12:55,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2019-11-15 21:12:55,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 701 transitions. [2019-11-15 21:12:55,344 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 701 transitions. Word has length 17 [2019-11-15 21:12:55,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:55,344 INFO L462 AbstractCegarLoop]: Abstraction has 464 states and 701 transitions. [2019-11-15 21:12:55,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:12:55,345 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 701 transitions. [2019-11-15 21:12:55,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 21:12:55,348 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:55,348 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2019-11-15 21:12:55,559 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:55,560 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:55,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:55,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1222343671, now seen corresponding path program 1 times [2019-11-15 21:12:55,560 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:55,561 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618312993] [2019-11-15 21:12:55,561 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:55,561 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:55,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:55,604 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:55,604 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618312993] [2019-11-15 21:12:55,605 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902182118] [2019-11-15 21:12:55,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:55,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:12:55,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:55,647 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:55,648 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:55,648 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:12:55,648 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332637632] [2019-11-15 21:12:55,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:12:55,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:55,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:12:55,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:12:55,650 INFO L87 Difference]: Start difference. First operand 464 states and 701 transitions. Second operand 4 states. [2019-11-15 21:12:55,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:55,710 INFO L93 Difference]: Finished difference Result 834 states and 1284 transitions. [2019-11-15 21:12:55,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:12:55,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-15 21:12:55,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:55,716 INFO L225 Difference]: With dead ends: 834 [2019-11-15 21:12:55,717 INFO L226 Difference]: Without dead ends: 832 [2019-11-15 21:12:55,719 INFO L600 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 [2019-11-15 21:12:55,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2019-11-15 21:12:55,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 668. [2019-11-15 21:12:55,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-11-15 21:12:55,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1007 transitions. [2019-11-15 21:12:55,745 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1007 transitions. Word has length 18 [2019-11-15 21:12:55,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:55,745 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 1007 transitions. [2019-11-15 21:12:55,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:12:55,746 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1007 transitions. [2019-11-15 21:12:55,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-15 21:12:55,750 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:55,750 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:12:55,953 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:55,953 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:55,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:55,954 INFO L82 PathProgramCache]: Analyzing trace with hash -668230362, now seen corresponding path program 1 times [2019-11-15 21:12:55,954 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:55,954 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635927798] [2019-11-15 21:12:55,954 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:55,954 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:55,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:56,000 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:56,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635927798] [2019-11-15 21:12:56,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553515623] [2019-11-15 21:12:56,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:56,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:12:56,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:56,051 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 21:12:56,051 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-11-15 21:12:56,051 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647812585] [2019-11-15 21:12:56,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:12:56,052 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:56,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:12:56,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:12:56,052 INFO L87 Difference]: Start difference. First operand 668 states and 1007 transitions. Second operand 3 states. [2019-11-15 21:12:56,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:56,076 INFO L93 Difference]: Finished difference Result 668 states and 1007 transitions. [2019-11-15 21:12:56,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:12:56,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-15 21:12:56,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:56,081 INFO L225 Difference]: With dead ends: 668 [2019-11-15 21:12:56,081 INFO L226 Difference]: Without dead ends: 667 [2019-11-15 21:12:56,082 INFO L600 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 [2019-11-15 21:12:56,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-11-15 21:12:56,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2019-11-15 21:12:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2019-11-15 21:12:56,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 991 transitions. [2019-11-15 21:12:56,105 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 991 transitions. Word has length 20 [2019-11-15 21:12:56,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:56,105 INFO L462 AbstractCegarLoop]: Abstraction has 667 states and 991 transitions. [2019-11-15 21:12:56,106 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:12:56,106 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 991 transitions. [2019-11-15 21:12:56,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 21:12:56,106 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:56,107 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1] [2019-11-15 21:12:56,309 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:56,309 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:56,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:56,310 INFO L82 PathProgramCache]: Analyzing trace with hash 2023206598, now seen corresponding path program 2 times [2019-11-15 21:12:56,310 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:56,310 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233256047] [2019-11-15 21:12:56,310 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:56,310 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:56,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:56,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233256047] [2019-11-15 21:12:56,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805849477] [2019-11-15 21:12:56,342 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:56,364 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:12:56,365 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:12:56,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:12:56,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:56,371 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:56,371 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-15 21:12:56,371 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219281371] [2019-11-15 21:12:56,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:12:56,372 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:56,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:12:56,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:12:56,373 INFO L87 Difference]: Start difference. First operand 667 states and 991 transitions. Second operand 5 states. [2019-11-15 21:12:56,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:56,431 INFO L93 Difference]: Finished difference Result 1152 states and 1729 transitions. [2019-11-15 21:12:56,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:12:56,431 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-15 21:12:56,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:56,438 INFO L225 Difference]: With dead ends: 1152 [2019-11-15 21:12:56,438 INFO L226 Difference]: Without dead ends: 1150 [2019-11-15 21:12:56,439 INFO L600 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 [2019-11-15 21:12:56,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2019-11-15 21:12:56,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 913. [2019-11-15 21:12:56,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2019-11-15 21:12:56,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1351 transitions. [2019-11-15 21:12:56,467 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1351 transitions. Word has length 21 [2019-11-15 21:12:56,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:56,468 INFO L462 AbstractCegarLoop]: Abstraction has 913 states and 1351 transitions. [2019-11-15 21:12:56,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:12:56,468 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1351 transitions. [2019-11-15 21:12:56,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 21:12:56,469 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:56,469 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2019-11-15 21:12:56,671 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:56,672 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:56,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:56,672 INFO L82 PathProgramCache]: Analyzing trace with hash 759881029, now seen corresponding path program 1 times [2019-11-15 21:12:56,673 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:56,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522858717] [2019-11-15 21:12:56,673 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:56,673 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:56,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:56,736 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:56,736 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522858717] [2019-11-15 21:12:56,737 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026999670] [2019-11-15 21:12:56,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:56,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:12:56,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:56,785 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:56,787 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:56,787 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2019-11-15 21:12:56,787 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037252447] [2019-11-15 21:12:56,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:12:56,788 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:56,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:12:56,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:12:56,793 INFO L87 Difference]: Start difference. First operand 913 states and 1351 transitions. Second operand 4 states. [2019-11-15 21:12:56,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:56,849 INFO L93 Difference]: Finished difference Result 1557 states and 2328 transitions. [2019-11-15 21:12:56,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:12:56,849 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-11-15 21:12:56,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:56,859 INFO L225 Difference]: With dead ends: 1557 [2019-11-15 21:12:56,859 INFO L226 Difference]: Without dead ends: 1556 [2019-11-15 21:12:56,863 INFO L600 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 [2019-11-15 21:12:56,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2019-11-15 21:12:56,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1193. [2019-11-15 21:12:56,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2019-11-15 21:12:56,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1768 transitions. [2019-11-15 21:12:56,906 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1768 transitions. Word has length 21 [2019-11-15 21:12:56,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:56,907 INFO L462 AbstractCegarLoop]: Abstraction has 1193 states and 1768 transitions. [2019-11-15 21:12:56,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:12:56,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1768 transitions. [2019-11-15 21:12:56,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 21:12:56,908 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:56,908 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2019-11-15 21:12:57,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:57,117 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:57,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:57,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1092753757, now seen corresponding path program 2 times [2019-11-15 21:12:57,118 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:57,118 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400262118] [2019-11-15 21:12:57,118 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:57,118 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:57,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:57,164 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400262118] [2019-11-15 21:12:57,165 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530689127] [2019-11-15 21:12:57,165 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:57,202 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:12:57,202 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:12:57,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:12:57,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:57,211 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:57,212 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-15 21:12:57,212 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15370003] [2019-11-15 21:12:57,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:12:57,213 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:57,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:12:57,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:12:57,213 INFO L87 Difference]: Start difference. First operand 1193 states and 1768 transitions. Second operand 5 states. [2019-11-15 21:12:57,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:57,313 INFO L93 Difference]: Finished difference Result 1951 states and 2902 transitions. [2019-11-15 21:12:57,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:12:57,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-15 21:12:57,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:57,324 INFO L225 Difference]: With dead ends: 1951 [2019-11-15 21:12:57,324 INFO L226 Difference]: Without dead ends: 1950 [2019-11-15 21:12:57,326 INFO L600 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 [2019-11-15 21:12:57,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2019-11-15 21:12:57,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1429. [2019-11-15 21:12:57,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1429 states. [2019-11-15 21:12:57,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2114 transitions. [2019-11-15 21:12:57,370 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2114 transitions. Word has length 25 [2019-11-15 21:12:57,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:57,371 INFO L462 AbstractCegarLoop]: Abstraction has 1429 states and 2114 transitions. [2019-11-15 21:12:57,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:12:57,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2114 transitions. [2019-11-15 21:12:57,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 21:12:57,373 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:57,373 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1] [2019-11-15 21:12:57,577 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:57,578 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:57,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:57,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1883170607, now seen corresponding path program 2 times [2019-11-15 21:12:57,578 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:57,578 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344462541] [2019-11-15 21:12:57,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:57,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:57,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:57,620 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:57,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344462541] [2019-11-15 21:12:57,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767072600] [2019-11-15 21:12:57,621 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:57,660 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:12:57,661 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:12:57,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:12:57,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:57,669 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:57,670 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:57,670 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-15 21:12:57,672 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898911758] [2019-11-15 21:12:57,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:12:57,672 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:57,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:12:57,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:12:57,673 INFO L87 Difference]: Start difference. First operand 1429 states and 2114 transitions. Second operand 5 states. [2019-11-15 21:12:57,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:57,744 INFO L93 Difference]: Finished difference Result 2462 states and 3693 transitions. [2019-11-15 21:12:57,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:12:57,745 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-15 21:12:57,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:57,759 INFO L225 Difference]: With dead ends: 2462 [2019-11-15 21:12:57,759 INFO L226 Difference]: Without dead ends: 2460 [2019-11-15 21:12:57,762 INFO L600 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 [2019-11-15 21:12:57,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2019-11-15 21:12:57,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 1959. [2019-11-15 21:12:57,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2019-11-15 21:12:57,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 2882 transitions. [2019-11-15 21:12:57,825 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 2882 transitions. Word has length 27 [2019-11-15 21:12:57,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:57,825 INFO L462 AbstractCegarLoop]: Abstraction has 1959 states and 2882 transitions. [2019-11-15 21:12:57,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:12:57,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 2882 transitions. [2019-11-15 21:12:57,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-15 21:12:57,828 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:57,828 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1] [2019-11-15 21:12:58,032 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:58,032 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:58,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:58,033 INFO L82 PathProgramCache]: Analyzing trace with hash -748146377, now seen corresponding path program 3 times [2019-11-15 21:12:58,033 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:58,033 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871557916] [2019-11-15 21:12:58,033 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:58,033 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:58,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:58,092 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:58,092 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871557916] [2019-11-15 21:12:58,092 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794756637] [2019-11-15 21:12:58,092 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:58,128 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-15 21:12:58,128 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:12:58,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 21:12:58,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:58,135 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:58,135 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:58,136 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-15 21:12:58,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669052684] [2019-11-15 21:12:58,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:12:58,136 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:58,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:12:58,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:12:58,139 INFO L87 Difference]: Start difference. First operand 1959 states and 2882 transitions. Second operand 6 states. [2019-11-15 21:12:58,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:58,216 INFO L93 Difference]: Finished difference Result 3173 states and 4732 transitions. [2019-11-15 21:12:58,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:12:58,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2019-11-15 21:12:58,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:58,235 INFO L225 Difference]: With dead ends: 3173 [2019-11-15 21:12:58,235 INFO L226 Difference]: Without dead ends: 3171 [2019-11-15 21:12:58,238 INFO L600 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 [2019-11-15 21:12:58,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2019-11-15 21:12:58,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 2563. [2019-11-15 21:12:58,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2563 states. [2019-11-15 21:12:58,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3749 transitions. [2019-11-15 21:12:58,313 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3749 transitions. Word has length 28 [2019-11-15 21:12:58,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:58,314 INFO L462 AbstractCegarLoop]: Abstraction has 2563 states and 3749 transitions. [2019-11-15 21:12:58,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:12:58,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3749 transitions. [2019-11-15 21:12:58,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 21:12:58,316 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:58,316 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2019-11-15 21:12:58,519 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:58,519 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:58,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:58,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1682870728, now seen corresponding path program 2 times [2019-11-15 21:12:58,520 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:58,520 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12590338] [2019-11-15 21:12:58,520 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:58,520 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:58,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:58,569 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:58,569 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12590338] [2019-11-15 21:12:58,569 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309208249] [2019-11-15 21:12:58,569 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:58,609 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:12:58,610 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:12:58,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:12:58,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:58,618 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:58,622 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:58,623 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-15 21:12:58,623 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849164320] [2019-11-15 21:12:58,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:12:58,624 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:58,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:12:58,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:12:58,625 INFO L87 Difference]: Start difference. First operand 2563 states and 3749 transitions. Second operand 5 states. [2019-11-15 21:12:58,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:58,701 INFO L93 Difference]: Finished difference Result 4182 states and 6155 transitions. [2019-11-15 21:12:58,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:12:58,702 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-15 21:12:58,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:58,724 INFO L225 Difference]: With dead ends: 4182 [2019-11-15 21:12:58,725 INFO L226 Difference]: Without dead ends: 4181 [2019-11-15 21:12:58,728 INFO L600 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 [2019-11-15 21:12:58,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2019-11-15 21:12:58,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 3071. [2019-11-15 21:12:58,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3071 states. [2019-11-15 21:12:58,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 4483 transitions. [2019-11-15 21:12:58,830 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 4483 transitions. Word has length 31 [2019-11-15 21:12:58,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:58,830 INFO L462 AbstractCegarLoop]: Abstraction has 3071 states and 4483 transitions. [2019-11-15 21:12:58,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:12:58,831 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 4483 transitions. [2019-11-15 21:12:58,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 21:12:58,832 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:58,832 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2019-11-15 21:12:59,036 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:59,036 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:59,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:59,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1047523897, now seen corresponding path program 3 times [2019-11-15 21:12:59,037 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:59,037 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467816842] [2019-11-15 21:12:59,037 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:59,037 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:59,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:59,083 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:59,083 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467816842] [2019-11-15 21:12:59,083 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540828521] [2019-11-15 21:12:59,084 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:59,124 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-15 21:12:59,124 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:12:59,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 21:12:59,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:59,134 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:59,136 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:59,136 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-15 21:12:59,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405974323] [2019-11-15 21:12:59,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:12:59,137 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:59,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:12:59,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:12:59,138 INFO L87 Difference]: Start difference. First operand 3071 states and 4483 transitions. Second operand 6 states. [2019-11-15 21:12:59,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:59,232 INFO L93 Difference]: Finished difference Result 4727 states and 6947 transitions. [2019-11-15 21:12:59,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:12:59,233 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-15 21:12:59,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:59,259 INFO L225 Difference]: With dead ends: 4727 [2019-11-15 21:12:59,259 INFO L226 Difference]: Without dead ends: 4726 [2019-11-15 21:12:59,264 INFO L600 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 [2019-11-15 21:12:59,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2019-11-15 21:12:59,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 3459. [2019-11-15 21:12:59,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3459 states. [2019-11-15 21:12:59,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5047 transitions. [2019-11-15 21:12:59,370 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5047 transitions. Word has length 33 [2019-11-15 21:12:59,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:59,370 INFO L462 AbstractCegarLoop]: Abstraction has 3459 states and 5047 transitions. [2019-11-15 21:12:59,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:12:59,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5047 transitions. [2019-11-15 21:12:59,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-15 21:12:59,371 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:59,371 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-11-15 21:12:59,575 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:12:59,575 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:12:59,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:59,576 INFO L82 PathProgramCache]: Analyzing trace with hash -507101786, now seen corresponding path program 4 times [2019-11-15 21:12:59,576 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:59,576 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223725769] [2019-11-15 21:12:59,576 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:59,576 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:59,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:59,637 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:59,638 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223725769] [2019-11-15 21:12:59,638 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290089608] [2019-11-15 21:12:59,638 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:12:59,683 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:12:59,683 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:12:59,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 21:12:59,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:59,691 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:59,691 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:12:59,691 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-15 21:12:59,692 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545708174] [2019-11-15 21:12:59,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:12:59,693 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:59,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:12:59,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:12:59,693 INFO L87 Difference]: Start difference. First operand 3459 states and 5047 transitions. Second operand 7 states. [2019-11-15 21:12:59,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:59,811 INFO L93 Difference]: Finished difference Result 5326 states and 7884 transitions. [2019-11-15 21:12:59,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:12:59,812 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-11-15 21:12:59,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:59,851 INFO L225 Difference]: With dead ends: 5326 [2019-11-15 21:12:59,851 INFO L226 Difference]: Without dead ends: 5324 [2019-11-15 21:12:59,856 INFO L600 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 [2019-11-15 21:12:59,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2019-11-15 21:13:00,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 4377. [2019-11-15 21:13:00,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4377 states. [2019-11-15 21:13:00,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 6353 transitions. [2019-11-15 21:13:00,034 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 6353 transitions. Word has length 35 [2019-11-15 21:13:00,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:00,034 INFO L462 AbstractCegarLoop]: Abstraction has 4377 states and 6353 transitions. [2019-11-15 21:13:00,034 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:13:00,034 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 6353 transitions. [2019-11-15 21:13:00,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-15 21:13:00,036 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:00,037 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1] [2019-11-15 21:13:00,241 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:00,241 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:00,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:00,242 INFO L82 PathProgramCache]: Analyzing trace with hash -32854327, now seen corresponding path program 3 times [2019-11-15 21:13:00,242 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:00,242 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99123564] [2019-11-15 21:13:00,242 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:00,243 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:00,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:00,301 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:00,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99123564] [2019-11-15 21:13:00,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076648705] [2019-11-15 21:13:00,302 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:00,360 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-15 21:13:00,361 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:00,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 21:13:00,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:00,377 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:00,379 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:00,380 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-15 21:13:00,380 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717400697] [2019-11-15 21:13:00,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:13:00,381 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:00,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:13:00,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:13:00,382 INFO L87 Difference]: Start difference. First operand 4377 states and 6353 transitions. Second operand 6 states. [2019-11-15 21:13:00,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:00,572 INFO L93 Difference]: Finished difference Result 7069 states and 10425 transitions. [2019-11-15 21:13:00,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:13:00,573 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-11-15 21:13:00,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:00,590 INFO L225 Difference]: With dead ends: 7069 [2019-11-15 21:13:00,591 INFO L226 Difference]: Without dead ends: 7067 [2019-11-15 21:13:00,599 INFO L600 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 [2019-11-15 21:13:00,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2019-11-15 21:13:00,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 5729. [2019-11-15 21:13:00,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5729 states. [2019-11-15 21:13:00,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 8265 transitions. [2019-11-15 21:13:00,782 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 8265 transitions. Word has length 36 [2019-11-15 21:13:00,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:00,783 INFO L462 AbstractCegarLoop]: Abstraction has 5729 states and 8265 transitions. [2019-11-15 21:13:00,783 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:13:00,783 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 8265 transitions. [2019-11-15 21:13:00,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-15 21:13:00,785 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:00,785 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2019-11-15 21:13:00,989 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:00,990 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:00,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:00,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1137071253, now seen corresponding path program 3 times [2019-11-15 21:13:00,991 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:00,992 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115422900] [2019-11-15 21:13:00,992 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:00,992 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:00,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:01,044 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:01,044 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115422900] [2019-11-15 21:13:01,044 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549712734] [2019-11-15 21:13:01,045 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:01,096 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-15 21:13:01,097 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:01,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 21:13:01,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:01,115 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:01,115 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:01,116 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-15 21:13:01,116 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313362589] [2019-11-15 21:13:01,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:13:01,118 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:01,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:13:01,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:13:01,119 INFO L87 Difference]: Start difference. First operand 5729 states and 8265 transitions. Second operand 6 states. [2019-11-15 21:13:01,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:01,288 INFO L93 Difference]: Finished difference Result 8806 states and 12809 transitions. [2019-11-15 21:13:01,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:13:01,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2019-11-15 21:13:01,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:01,309 INFO L225 Difference]: With dead ends: 8806 [2019-11-15 21:13:01,309 INFO L226 Difference]: Without dead ends: 8805 [2019-11-15 21:13:01,317 INFO L600 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 [2019-11-15 21:13:01,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8805 states. [2019-11-15 21:13:01,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8805 to 6453. [2019-11-15 21:13:01,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6453 states. [2019-11-15 21:13:01,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 9305 transitions. [2019-11-15 21:13:01,492 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 9305 transitions. Word has length 41 [2019-11-15 21:13:01,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:01,492 INFO L462 AbstractCegarLoop]: Abstraction has 6453 states and 9305 transitions. [2019-11-15 21:13:01,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:13:01,493 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 9305 transitions. [2019-11-15 21:13:01,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-15 21:13:01,495 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:01,495 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-11-15 21:13:01,699 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:01,702 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:01,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:01,703 INFO L82 PathProgramCache]: Analyzing trace with hash 589297713, now seen corresponding path program 4 times [2019-11-15 21:13:01,703 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:01,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368355673] [2019-11-15 21:13:01,704 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:01,704 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:01,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:01,779 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:01,779 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368355673] [2019-11-15 21:13:01,780 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575585627] [2019-11-15 21:13:01,780 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:01,833 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:13:01,834 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:01,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 21:13:01,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:01,845 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:01,845 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:01,845 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-15 21:13:01,845 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543462] [2019-11-15 21:13:01,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:13:01,846 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:01,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:13:01,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:13:01,846 INFO L87 Difference]: Start difference. First operand 6453 states and 9305 transitions. Second operand 7 states. [2019-11-15 21:13:01,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:01,997 INFO L93 Difference]: Finished difference Result 9500 states and 13815 transitions. [2019-11-15 21:13:01,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:13:01,998 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2019-11-15 21:13:01,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:02,017 INFO L225 Difference]: With dead ends: 9500 [2019-11-15 21:13:02,018 INFO L226 Difference]: Without dead ends: 9499 [2019-11-15 21:13:02,026 INFO L600 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 [2019-11-15 21:13:02,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9499 states. [2019-11-15 21:13:02,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9499 to 7025. [2019-11-15 21:13:02,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7025 states. [2019-11-15 21:13:02,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 10131 transitions. [2019-11-15 21:13:02,203 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 10131 transitions. Word has length 41 [2019-11-15 21:13:02,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:02,204 INFO L462 AbstractCegarLoop]: Abstraction has 7025 states and 10131 transitions. [2019-11-15 21:13:02,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:13:02,204 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 10131 transitions. [2019-11-15 21:13:02,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-15 21:13:02,206 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:02,206 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 1, 1] [2019-11-15 21:13:02,410 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:02,410 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:02,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:02,411 INFO L82 PathProgramCache]: Analyzing trace with hash 644163159, now seen corresponding path program 5 times [2019-11-15 21:13:02,411 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:02,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733329984] [2019-11-15 21:13:02,412 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:02,412 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:02,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:02,486 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:02,486 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733329984] [2019-11-15 21:13:02,486 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778188059] [2019-11-15 21:13:02,487 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:02,545 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-15 21:13:02,545 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:02,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 21:13:02,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:02,554 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:02,554 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:02,554 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-15 21:13:02,555 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254199761] [2019-11-15 21:13:02,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:13:02,555 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:02,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:13:02,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:13:02,556 INFO L87 Difference]: Start difference. First operand 7025 states and 10131 transitions. Second operand 8 states. [2019-11-15 21:13:02,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:02,727 INFO L93 Difference]: Finished difference Result 10381 states and 15206 transitions. [2019-11-15 21:13:02,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:13:02,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-11-15 21:13:02,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:02,749 INFO L225 Difference]: With dead ends: 10381 [2019-11-15 21:13:02,750 INFO L226 Difference]: Without dead ends: 10379 [2019-11-15 21:13:02,759 INFO L600 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 [2019-11-15 21:13:02,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10379 states. [2019-11-15 21:13:03,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10379 to 8665. [2019-11-15 21:13:03,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8665 states. [2019-11-15 21:13:03,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8665 states to 8665 states and 12438 transitions. [2019-11-15 21:13:03,057 INFO L78 Accepts]: Start accepts. Automaton has 8665 states and 12438 transitions. Word has length 42 [2019-11-15 21:13:03,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:03,057 INFO L462 AbstractCegarLoop]: Abstraction has 8665 states and 12438 transitions. [2019-11-15 21:13:03,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:13:03,058 INFO L276 IsEmpty]: Start isEmpty. Operand 8665 states and 12438 transitions. [2019-11-15 21:13:03,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-15 21:13:03,060 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:03,060 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1] [2019-11-15 21:13:03,264 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:03,271 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:03,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:03,272 INFO L82 PathProgramCache]: Analyzing trace with hash -809708433, now seen corresponding path program 4 times [2019-11-15 21:13:03,272 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:03,272 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592263821] [2019-11-15 21:13:03,272 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:03,272 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:03,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:03,333 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:03,333 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592263821] [2019-11-15 21:13:03,333 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115786276] [2019-11-15 21:13:03,333 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:03,392 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:13:03,392 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:03,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 21:13:03,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:03,411 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:03,411 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:03,411 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-15 21:13:03,412 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049399881] [2019-11-15 21:13:03,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:13:03,412 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:03,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:13:03,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:13:03,413 INFO L87 Difference]: Start difference. First operand 8665 states and 12438 transitions. Second operand 7 states. [2019-11-15 21:13:03,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:03,607 INFO L93 Difference]: Finished difference Result 13312 states and 19429 transitions. [2019-11-15 21:13:03,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:13:03,607 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-11-15 21:13:03,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:03,634 INFO L225 Difference]: With dead ends: 13312 [2019-11-15 21:13:03,634 INFO L226 Difference]: Without dead ends: 13310 [2019-11-15 21:13:03,639 INFO L600 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 [2019-11-15 21:13:03,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13310 states. [2019-11-15 21:13:03,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13310 to 10967. [2019-11-15 21:13:03,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10967 states. [2019-11-15 21:13:03,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10967 states to 10967 states and 15657 transitions. [2019-11-15 21:13:03,850 INFO L78 Accepts]: Start accepts. Automaton has 10967 states and 15657 transitions. Word has length 45 [2019-11-15 21:13:03,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:03,850 INFO L462 AbstractCegarLoop]: Abstraction has 10967 states and 15657 transitions. [2019-11-15 21:13:03,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:13:03,851 INFO L276 IsEmpty]: Start isEmpty. Operand 10967 states and 15657 transitions. [2019-11-15 21:13:03,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-15 21:13:03,853 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:03,853 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1] [2019-11-15 21:13:04,057 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:04,057 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:04,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:04,058 INFO L82 PathProgramCache]: Analyzing trace with hash -144620410, now seen corresponding path program 6 times [2019-11-15 21:13:04,058 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:04,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25996422] [2019-11-15 21:13:04,058 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:04,058 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:04,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:04,131 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:04,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25996422] [2019-11-15 21:13:04,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886385774] [2019-11-15 21:13:04,131 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:04,174 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-15 21:13:04,174 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:04,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 21:13:04,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:04,184 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:04,185 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:04,185 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-15 21:13:04,186 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204865487] [2019-11-15 21:13:04,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 21:13:04,186 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:04,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 21:13:04,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:13:04,187 INFO L87 Difference]: Start difference. First operand 10967 states and 15657 transitions. Second operand 9 states. [2019-11-15 21:13:04,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:04,375 INFO L93 Difference]: Finished difference Result 15622 states and 22665 transitions. [2019-11-15 21:13:04,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 21:13:04,375 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2019-11-15 21:13:04,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:04,410 INFO L225 Difference]: With dead ends: 15622 [2019-11-15 21:13:04,410 INFO L226 Difference]: Without dead ends: 15620 [2019-11-15 21:13:04,415 INFO L600 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 [2019-11-15 21:13:04,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15620 states. [2019-11-15 21:13:04,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15620 to 13091. [2019-11-15 21:13:04,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13091 states. [2019-11-15 21:13:04,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13091 states to 13091 states and 18609 transitions. [2019-11-15 21:13:04,656 INFO L78 Accepts]: Start accepts. Automaton has 13091 states and 18609 transitions. Word has length 49 [2019-11-15 21:13:04,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:04,656 INFO L462 AbstractCegarLoop]: Abstraction has 13091 states and 18609 transitions. [2019-11-15 21:13:04,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 21:13:04,656 INFO L276 IsEmpty]: Start isEmpty. Operand 13091 states and 18609 transitions. [2019-11-15 21:13:04,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-15 21:13:04,661 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:04,661 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2019-11-15 21:13:04,864 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:04,865 INFO L410 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:04,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:04,865 INFO L82 PathProgramCache]: Analyzing trace with hash 2004605083, now seen corresponding path program 5 times [2019-11-15 21:13:04,865 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:04,865 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654181219] [2019-11-15 21:13:04,865 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:04,866 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:04,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:04,927 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654181219] [2019-11-15 21:13:04,927 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642852824] [2019-11-15 21:13:04,928 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:04,967 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-15 21:13:04,968 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:04,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 21:13:04,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:05,045 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:05,046 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:05,046 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-15 21:13:05,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772267145] [2019-11-15 21:13:05,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:13:05,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:05,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:13:05,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:13:05,047 INFO L87 Difference]: Start difference. First operand 13091 states and 18609 transitions. Second operand 8 states. [2019-11-15 21:13:05,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:05,240 INFO L93 Difference]: Finished difference Result 19890 states and 28521 transitions. [2019-11-15 21:13:05,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:13:05,241 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2019-11-15 21:13:05,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:05,277 INFO L225 Difference]: With dead ends: 19890 [2019-11-15 21:13:05,277 INFO L226 Difference]: Without dead ends: 19889 [2019-11-15 21:13:05,282 INFO L600 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 [2019-11-15 21:13:05,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19889 states. [2019-11-15 21:13:05,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19889 to 14129. [2019-11-15 21:13:05,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14129 states. [2019-11-15 21:13:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14129 states to 14129 states and 20097 transitions. [2019-11-15 21:13:05,539 INFO L78 Accepts]: Start accepts. Automaton has 14129 states and 20097 transitions. Word has length 49 [2019-11-15 21:13:05,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:05,540 INFO L462 AbstractCegarLoop]: Abstraction has 14129 states and 20097 transitions. [2019-11-15 21:13:05,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:13:05,540 INFO L276 IsEmpty]: Start isEmpty. Operand 14129 states and 20097 transitions. [2019-11-15 21:13:05,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-15 21:13:05,543 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:05,543 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2019-11-15 21:13:05,746 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:05,746 INFO L410 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:05,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:05,747 INFO L82 PathProgramCache]: Analyzing trace with hash -85375778, now seen corresponding path program 4 times [2019-11-15 21:13:05,747 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:05,747 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500544081] [2019-11-15 21:13:05,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:05,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:05,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:05,796 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:05,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500544081] [2019-11-15 21:13:05,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36527083] [2019-11-15 21:13:05,797 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:05,834 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:13:05,834 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:05,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 21:13:05,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:05,845 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:05,845 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-15 21:13:05,845 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790587039] [2019-11-15 21:13:05,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:13:05,846 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:05,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:13:05,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:13:05,847 INFO L87 Difference]: Start difference. First operand 14129 states and 20097 transitions. Second operand 7 states. [2019-11-15 21:13:06,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:06,028 INFO L93 Difference]: Finished difference Result 20774 states and 29837 transitions. [2019-11-15 21:13:06,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:13:06,028 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-11-15 21:13:06,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:06,060 INFO L225 Difference]: With dead ends: 20774 [2019-11-15 21:13:06,061 INFO L226 Difference]: Without dead ends: 20773 [2019-11-15 21:13:06,069 INFO L600 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 [2019-11-15 21:13:06,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20773 states. [2019-11-15 21:13:06,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20773 to 15381. [2019-11-15 21:13:06,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15381 states. [2019-11-15 21:13:06,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15381 states to 15381 states and 21881 transitions. [2019-11-15 21:13:06,325 INFO L78 Accepts]: Start accepts. Automaton has 15381 states and 21881 transitions. Word has length 51 [2019-11-15 21:13:06,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:06,325 INFO L462 AbstractCegarLoop]: Abstraction has 15381 states and 21881 transitions. [2019-11-15 21:13:06,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:13:06,326 INFO L276 IsEmpty]: Start isEmpty. Operand 15381 states and 21881 transitions. [2019-11-15 21:13:06,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-11-15 21:13:06,329 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:06,329 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1] [2019-11-15 21:13:06,532 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:06,532 INFO L410 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:06,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:06,533 INFO L82 PathProgramCache]: Analyzing trace with hash -884758135, now seen corresponding path program 5 times [2019-11-15 21:13:06,533 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:06,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287954284] [2019-11-15 21:13:06,533 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:06,533 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:06,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:06,597 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287954284] [2019-11-15 21:13:06,597 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570525217] [2019-11-15 21:13:06,597 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:06,642 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-15 21:13:06,642 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:06,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 21:13:06,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:06,655 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:06,656 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:06,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-15 21:13:06,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759578787] [2019-11-15 21:13:06,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:13:06,657 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:06,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:13:06,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:13:06,658 INFO L87 Difference]: Start difference. First operand 15381 states and 21881 transitions. Second operand 8 states. [2019-11-15 21:13:06,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:06,962 INFO L93 Difference]: Finished difference Result 22697 states and 32841 transitions. [2019-11-15 21:13:06,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:13:06,963 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2019-11-15 21:13:06,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:06,991 INFO L225 Difference]: With dead ends: 22697 [2019-11-15 21:13:06,991 INFO L226 Difference]: Without dead ends: 22695 [2019-11-15 21:13:06,995 INFO L600 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 [2019-11-15 21:13:07,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22695 states. [2019-11-15 21:13:07,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22695 to 18973. [2019-11-15 21:13:07,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18973 states. [2019-11-15 21:13:07,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18973 states to 18973 states and 26864 transitions. [2019-11-15 21:13:07,276 INFO L78 Accepts]: Start accepts. Automaton has 18973 states and 26864 transitions. Word has length 54 [2019-11-15 21:13:07,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:07,277 INFO L462 AbstractCegarLoop]: Abstraction has 18973 states and 26864 transitions. [2019-11-15 21:13:07,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:13:07,277 INFO L276 IsEmpty]: Start isEmpty. Operand 18973 states and 26864 transitions. [2019-11-15 21:13:07,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-15 21:13:07,282 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:07,282 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 1, 1] [2019-11-15 21:13:07,486 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:07,486 INFO L410 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:07,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:07,486 INFO L82 PathProgramCache]: Analyzing trace with hash -931224713, now seen corresponding path program 7 times [2019-11-15 21:13:07,486 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:07,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532196734] [2019-11-15 21:13:07,487 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:07,487 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:07,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:07,568 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:07,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532196734] [2019-11-15 21:13:07,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523486335] [2019-11-15 21:13:07,568 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:07,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 21:13:07,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:07,613 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:07,613 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:07,613 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-15 21:13:07,613 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329503791] [2019-11-15 21:13:07,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 21:13:07,614 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:07,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 21:13:07,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:13:07,615 INFO L87 Difference]: Start difference. First operand 18973 states and 26864 transitions. Second operand 10 states. [2019-11-15 21:13:07,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:07,838 INFO L93 Difference]: Finished difference Result 26251 states and 37778 transitions. [2019-11-15 21:13:07,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 21:13:07,839 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2019-11-15 21:13:07,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:07,872 INFO L225 Difference]: With dead ends: 26251 [2019-11-15 21:13:07,872 INFO L226 Difference]: Without dead ends: 26249 [2019-11-15 21:13:07,879 INFO L600 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 [2019-11-15 21:13:07,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26249 states. [2019-11-15 21:13:08,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26249 to 22311. [2019-11-15 21:13:08,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22311 states. [2019-11-15 21:13:08,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22311 states to 22311 states and 31473 transitions. [2019-11-15 21:13:08,186 INFO L78 Accepts]: Start accepts. Automaton has 22311 states and 31473 transitions. Word has length 56 [2019-11-15 21:13:08,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:08,187 INFO L462 AbstractCegarLoop]: Abstraction has 22311 states and 31473 transitions. [2019-11-15 21:13:08,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 21:13:08,187 INFO L276 IsEmpty]: Start isEmpty. Operand 22311 states and 31473 transitions. [2019-11-15 21:13:08,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-15 21:13:08,191 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:08,191 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2019-11-15 21:13:08,393 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:08,394 INFO L410 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:08,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:08,394 INFO L82 PathProgramCache]: Analyzing trace with hash -2041729275, now seen corresponding path program 6 times [2019-11-15 21:13:08,394 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:08,394 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457642089] [2019-11-15 21:13:08,394 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:08,394 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:08,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:08,464 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457642089] [2019-11-15 21:13:08,464 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053920597] [2019-11-15 21:13:08,464 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:08,507 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-15 21:13:08,508 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:08,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 21:13:08,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:08,628 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:08,629 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:08,629 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-15 21:13:08,629 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707555566] [2019-11-15 21:13:08,629 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 21:13:08,629 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:08,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 21:13:08,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:13:08,630 INFO L87 Difference]: Start difference. First operand 22311 states and 31473 transitions. Second operand 9 states. [2019-11-15 21:13:08,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:08,889 INFO L93 Difference]: Finished difference Result 32955 states and 46932 transitions. [2019-11-15 21:13:08,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 21:13:08,889 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-11-15 21:13:08,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:08,927 INFO L225 Difference]: With dead ends: 32955 [2019-11-15 21:13:08,927 INFO L226 Difference]: Without dead ends: 32954 [2019-11-15 21:13:08,938 INFO L600 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 [2019-11-15 21:13:08,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32954 states. [2019-11-15 21:13:09,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32954 to 23705. [2019-11-15 21:13:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23705 states. [2019-11-15 21:13:09,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23705 states to 23705 states and 33462 transitions. [2019-11-15 21:13:09,308 INFO L78 Accepts]: Start accepts. Automaton has 23705 states and 33462 transitions. Word has length 57 [2019-11-15 21:13:09,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:09,308 INFO L462 AbstractCegarLoop]: Abstraction has 23705 states and 33462 transitions. [2019-11-15 21:13:09,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 21:13:09,308 INFO L276 IsEmpty]: Start isEmpty. Operand 23705 states and 33462 transitions. [2019-11-15 21:13:09,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-11-15 21:13:09,312 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:09,312 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2019-11-15 21:13:09,515 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:09,515 INFO L410 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:09,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:09,516 INFO L82 PathProgramCache]: Analyzing trace with hash 2087316113, now seen corresponding path program 5 times [2019-11-15 21:13:09,516 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:09,516 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323688787] [2019-11-15 21:13:09,516 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:09,516 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:09,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:09,573 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323688787] [2019-11-15 21:13:09,573 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327301726] [2019-11-15 21:13:09,573 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:09,617 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-15 21:13:09,617 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:09,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 21:13:09,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:09,629 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:09,629 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:09,629 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-15 21:13:09,629 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692150499] [2019-11-15 21:13:09,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:13:09,630 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:09,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:13:09,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:13:09,630 INFO L87 Difference]: Start difference. First operand 23705 states and 33462 transitions. Second operand 8 states. [2019-11-15 21:13:09,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:09,882 INFO L93 Difference]: Finished difference Result 33669 states and 48018 transitions. [2019-11-15 21:13:09,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:13:09,882 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2019-11-15 21:13:09,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:09,918 INFO L225 Difference]: With dead ends: 33669 [2019-11-15 21:13:09,918 INFO L226 Difference]: Without dead ends: 33668 [2019-11-15 21:13:09,927 INFO L600 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 [2019-11-15 21:13:09,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33668 states. [2019-11-15 21:13:10,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33668 to 25269. [2019-11-15 21:13:10,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25269 states. [2019-11-15 21:13:10,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25269 states to 25269 states and 35684 transitions. [2019-11-15 21:13:10,376 INFO L78 Accepts]: Start accepts. Automaton has 25269 states and 35684 transitions. Word has length 61 [2019-11-15 21:13:10,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:10,377 INFO L462 AbstractCegarLoop]: Abstraction has 25269 states and 35684 transitions. [2019-11-15 21:13:10,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:13:10,377 INFO L276 IsEmpty]: Start isEmpty. Operand 25269 states and 35684 transitions. [2019-11-15 21:13:10,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-15 21:13:10,380 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:10,380 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1] [2019-11-15 21:13:10,582 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:10,583 INFO L410 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:10,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:10,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1714864998, now seen corresponding path program 8 times [2019-11-15 21:13:10,583 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:10,583 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847018407] [2019-11-15 21:13:10,583 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:10,583 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:10,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:10,699 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:10,699 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847018407] [2019-11-15 21:13:10,699 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109105756] [2019-11-15 21:13:10,699 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:10,887 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:13:10,887 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:10,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 21:13:10,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:10,897 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:10,897 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:10,897 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-15 21:13:10,898 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878502504] [2019-11-15 21:13:10,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 21:13:10,898 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:10,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 21:13:10,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:13:10,899 INFO L87 Difference]: Start difference. First operand 25269 states and 35684 transitions. Second operand 11 states. [2019-11-15 21:13:11,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:11,179 INFO L93 Difference]: Finished difference Result 34130 states and 48968 transitions. [2019-11-15 21:13:11,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 21:13:11,180 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2019-11-15 21:13:11,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:11,206 INFO L225 Difference]: With dead ends: 34130 [2019-11-15 21:13:11,206 INFO L226 Difference]: Without dead ends: 34128 [2019-11-15 21:13:11,212 INFO L600 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 [2019-11-15 21:13:11,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34128 states. [2019-11-15 21:13:11,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34128 to 29345. [2019-11-15 21:13:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29345 states. [2019-11-15 21:13:11,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29345 states to 29345 states and 41306 transitions. [2019-11-15 21:13:11,554 INFO L78 Accepts]: Start accepts. Automaton has 29345 states and 41306 transitions. Word has length 63 [2019-11-15 21:13:11,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:11,555 INFO L462 AbstractCegarLoop]: Abstraction has 29345 states and 41306 transitions. [2019-11-15 21:13:11,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 21:13:11,555 INFO L276 IsEmpty]: Start isEmpty. Operand 29345 states and 41306 transitions. [2019-11-15 21:13:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-15 21:13:11,558 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:11,558 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1] [2019-11-15 21:13:11,758 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:11,758 INFO L410 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:11,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:11,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1360130479, now seen corresponding path program 6 times [2019-11-15 21:13:11,759 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:11,759 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868369412] [2019-11-15 21:13:11,759 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:11,759 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:11,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:11,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868369412] [2019-11-15 21:13:11,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046462899] [2019-11-15 21:13:11,845 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:11,904 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-15 21:13:11,905 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:11,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 21:13:11,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:11,923 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:11,924 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:11,925 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-15 21:13:11,925 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038747177] [2019-11-15 21:13:11,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 21:13:11,927 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:11,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 21:13:11,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:13:11,928 INFO L87 Difference]: Start difference. First operand 29345 states and 41306 transitions. Second operand 9 states. [2019-11-15 21:13:12,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:12,266 INFO L93 Difference]: Finished difference Result 41880 states and 59971 transitions. [2019-11-15 21:13:12,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 21:13:12,267 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2019-11-15 21:13:12,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:12,318 INFO L225 Difference]: With dead ends: 41880 [2019-11-15 21:13:12,319 INFO L226 Difference]: Without dead ends: 41878 [2019-11-15 21:13:12,329 INFO L600 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 [2019-11-15 21:13:12,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41878 states. [2019-11-15 21:13:12,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41878 to 35465. [2019-11-15 21:13:12,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35465 states. [2019-11-15 21:13:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35465 states to 35465 states and 49718 transitions. [2019-11-15 21:13:13,044 INFO L78 Accepts]: Start accepts. Automaton has 35465 states and 49718 transitions. Word has length 63 [2019-11-15 21:13:13,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:13,045 INFO L462 AbstractCegarLoop]: Abstraction has 35465 states and 49718 transitions. [2019-11-15 21:13:13,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 21:13:13,045 INFO L276 IsEmpty]: Start isEmpty. Operand 35465 states and 49718 transitions. [2019-11-15 21:13:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-15 21:13:13,049 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:13,050 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2019-11-15 21:13:13,253 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:13,253 INFO L410 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:13,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:13,254 INFO L82 PathProgramCache]: Analyzing trace with hash -851477649, now seen corresponding path program 7 times [2019-11-15 21:13:13,254 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:13,254 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556366471] [2019-11-15 21:13:13,254 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:13,255 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:13,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:13,356 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556366471] [2019-11-15 21:13:13,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699932420] [2019-11-15 21:13:13,357 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:13,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 21:13:13,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:13,422 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:13,422 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-15 21:13:13,422 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294410274] [2019-11-15 21:13:13,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 21:13:13,424 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:13,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 21:13:13,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:13:13,425 INFO L87 Difference]: Start difference. First operand 35465 states and 49718 transitions. Second operand 10 states. [2019-11-15 21:13:13,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:13,722 INFO L93 Difference]: Finished difference Result 51129 states and 72397 transitions. [2019-11-15 21:13:13,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 21:13:13,722 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2019-11-15 21:13:13,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:13,774 INFO L225 Difference]: With dead ends: 51129 [2019-11-15 21:13:13,774 INFO L226 Difference]: Without dead ends: 51128 [2019-11-15 21:13:13,784 INFO L600 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 [2019-11-15 21:13:13,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51128 states. [2019-11-15 21:13:14,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51128 to 37261. [2019-11-15 21:13:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37261 states. [2019-11-15 21:13:14,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37261 states to 37261 states and 52271 transitions. [2019-11-15 21:13:14,265 INFO L78 Accepts]: Start accepts. Automaton has 37261 states and 52271 transitions. Word has length 65 [2019-11-15 21:13:14,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:14,265 INFO L462 AbstractCegarLoop]: Abstraction has 37261 states and 52271 transitions. [2019-11-15 21:13:14,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 21:13:14,265 INFO L276 IsEmpty]: Start isEmpty. Operand 37261 states and 52271 transitions. [2019-11-15 21:13:14,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-15 21:13:14,270 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:14,271 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 1, 1] [2019-11-15 21:13:14,472 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:14,472 INFO L410 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:14,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:14,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1457084265, now seen corresponding path program 9 times [2019-11-15 21:13:14,473 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:14,473 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039345423] [2019-11-15 21:13:14,473 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:14,473 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:14,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:14,583 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:14,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039345423] [2019-11-15 21:13:14,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245718354] [2019-11-15 21:13:14,583 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:14,634 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-15 21:13:14,634 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:14,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 21:13:14,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:14,647 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:14,647 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:14,647 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-15 21:13:14,647 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723015239] [2019-11-15 21:13:14,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 21:13:14,648 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:14,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 21:13:14,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:13:14,648 INFO L87 Difference]: Start difference. First operand 37261 states and 52271 transitions. Second operand 12 states. [2019-11-15 21:13:14,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:14,994 INFO L93 Difference]: Finished difference Result 49299 states and 70254 transitions. [2019-11-15 21:13:14,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 21:13:14,995 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2019-11-15 21:13:14,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:15,066 INFO L225 Difference]: With dead ends: 49299 [2019-11-15 21:13:15,066 INFO L226 Difference]: Without dead ends: 49297 [2019-11-15 21:13:15,076 INFO L600 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 [2019-11-15 21:13:15,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49297 states. [2019-11-15 21:13:15,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49297 to 42813. [2019-11-15 21:13:15,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42813 states. [2019-11-15 21:13:15,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42813 states to 42813 states and 59889 transitions. [2019-11-15 21:13:15,934 INFO L78 Accepts]: Start accepts. Automaton has 42813 states and 59889 transitions. Word has length 70 [2019-11-15 21:13:15,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:15,935 INFO L462 AbstractCegarLoop]: Abstraction has 42813 states and 59889 transitions. [2019-11-15 21:13:15,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 21:13:15,937 INFO L276 IsEmpty]: Start isEmpty. Operand 42813 states and 59889 transitions. [2019-11-15 21:13:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-11-15 21:13:15,942 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:15,942 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2019-11-15 21:13:16,145 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:16,146 INFO L410 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:16,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:16,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1593226108, now seen corresponding path program 6 times [2019-11-15 21:13:16,146 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:16,146 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30098123] [2019-11-15 21:13:16,146 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:16,147 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:16,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:16,214 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:16,215 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30098123] [2019-11-15 21:13:16,215 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737512140] [2019-11-15 21:13:16,216 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:16,263 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-15 21:13:16,263 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:16,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 21:13:16,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:16,275 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:16,276 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:16,276 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-15 21:13:16,276 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786050905] [2019-11-15 21:13:16,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 21:13:16,277 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:16,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 21:13:16,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:13:16,277 INFO L87 Difference]: Start difference. First operand 42813 states and 59889 transitions. Second operand 9 states. [2019-11-15 21:13:16,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:16,586 INFO L93 Difference]: Finished difference Result 59102 states and 83563 transitions. [2019-11-15 21:13:16,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 21:13:16,587 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2019-11-15 21:13:16,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:16,649 INFO L225 Difference]: With dead ends: 59102 [2019-11-15 21:13:16,649 INFO L226 Difference]: Without dead ends: 59101 [2019-11-15 21:13:16,660 INFO L600 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 [2019-11-15 21:13:16,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59101 states. [2019-11-15 21:13:17,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59101 to 45005. [2019-11-15 21:13:17,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45005 states. [2019-11-15 21:13:17,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45005 states to 45005 states and 62987 transitions. [2019-11-15 21:13:17,814 INFO L78 Accepts]: Start accepts. Automaton has 45005 states and 62987 transitions. Word has length 71 [2019-11-15 21:13:17,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:17,814 INFO L462 AbstractCegarLoop]: Abstraction has 45005 states and 62987 transitions. [2019-11-15 21:13:17,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 21:13:17,815 INFO L276 IsEmpty]: Start isEmpty. Operand 45005 states and 62987 transitions. [2019-11-15 21:13:17,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-11-15 21:13:17,821 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:17,821 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1] [2019-11-15 21:13:18,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:18,025 INFO L410 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:18,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:18,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1572566089, now seen corresponding path program 7 times [2019-11-15 21:13:18,026 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:18,026 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858064028] [2019-11-15 21:13:18,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:18,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:18,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:18,112 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858064028] [2019-11-15 21:13:18,112 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112440225] [2019-11-15 21:13:18,113 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:18,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 21:13:18,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:18,177 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:18,177 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-15 21:13:18,177 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977585153] [2019-11-15 21:13:18,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 21:13:18,178 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:18,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 21:13:18,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:13:18,179 INFO L87 Difference]: Start difference. First operand 45005 states and 62987 transitions. Second operand 10 states. [2019-11-15 21:13:18,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:18,685 INFO L93 Difference]: Finished difference Result 62465 states and 88920 transitions. [2019-11-15 21:13:18,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 21:13:18,686 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2019-11-15 21:13:18,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:18,780 INFO L225 Difference]: With dead ends: 62465 [2019-11-15 21:13:18,781 INFO L226 Difference]: Without dead ends: 62463 [2019-11-15 21:13:18,797 INFO L600 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 [2019-11-15 21:13:18,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62463 states. [2019-11-15 21:13:19,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62463 to 53489. [2019-11-15 21:13:19,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53489 states. [2019-11-15 21:13:19,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53489 states to 53489 states and 74598 transitions. [2019-11-15 21:13:19,718 INFO L78 Accepts]: Start accepts. Automaton has 53489 states and 74598 transitions. Word has length 72 [2019-11-15 21:13:19,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:19,718 INFO L462 AbstractCegarLoop]: Abstraction has 53489 states and 74598 transitions. [2019-11-15 21:13:19,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 21:13:19,718 INFO L276 IsEmpty]: Start isEmpty. Operand 53489 states and 74598 transitions. [2019-11-15 21:13:19,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-11-15 21:13:19,723 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:19,723 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2019-11-15 21:13:19,925 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:19,925 INFO L410 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:19,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:19,925 INFO L82 PathProgramCache]: Analyzing trace with hash 2147171801, now seen corresponding path program 8 times [2019-11-15 21:13:19,925 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:19,925 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046336644] [2019-11-15 21:13:19,926 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:19,926 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:19,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:20,040 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:20,040 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046336644] [2019-11-15 21:13:20,040 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741582068] [2019-11-15 21:13:20,040 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:20,088 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:13:20,089 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:20,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 21:13:20,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:20,101 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:20,102 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-15 21:13:20,102 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549706228] [2019-11-15 21:13:20,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 21:13:20,102 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:20,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 21:13:20,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:13:20,103 INFO L87 Difference]: Start difference. First operand 53489 states and 74598 transitions. Second operand 11 states. [2019-11-15 21:13:20,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:20,585 INFO L93 Difference]: Finished difference Result 75498 states and 106380 transitions. [2019-11-15 21:13:20,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 21:13:20,586 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2019-11-15 21:13:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:20,668 INFO L225 Difference]: With dead ends: 75498 [2019-11-15 21:13:20,668 INFO L226 Difference]: Without dead ends: 75497 [2019-11-15 21:13:20,682 INFO L600 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 [2019-11-15 21:13:20,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75497 states. [2019-11-15 21:13:22,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75497 to 55733. [2019-11-15 21:13:22,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55733 states. [2019-11-15 21:13:22,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55733 states to 55733 states and 77778 transitions. [2019-11-15 21:13:22,244 INFO L78 Accepts]: Start accepts. Automaton has 55733 states and 77778 transitions. Word has length 73 [2019-11-15 21:13:22,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:22,244 INFO L462 AbstractCegarLoop]: Abstraction has 55733 states and 77778 transitions. [2019-11-15 21:13:22,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 21:13:22,245 INFO L276 IsEmpty]: Start isEmpty. Operand 55733 states and 77778 transitions. [2019-11-15 21:13:22,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-15 21:13:22,252 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:22,252 INFO L380 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1] [2019-11-15 21:13:22,455 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:22,456 INFO L410 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:22,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:22,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1519696454, now seen corresponding path program 10 times [2019-11-15 21:13:22,456 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:22,456 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785577602] [2019-11-15 21:13:22,456 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:22,457 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:22,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2019-11-15 21:13:22,543 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785577602] [2019-11-15 21:13:22,543 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524928238] [2019-11-15 21:13:22,544 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:22,602 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 21:13:22,602 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:22,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-15 21:13:22,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:22,851 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 21:13:22,851 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [3] total 15 [2019-11-15 21:13:22,851 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596673028] [2019-11-15 21:13:22,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-15 21:13:22,853 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:22,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-15 21:13:22,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-11-15 21:13:22,854 INFO L87 Difference]: Start difference. First operand 55733 states and 77778 transitions. Second operand 13 states. [2019-11-15 21:13:23,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:23,572 INFO L93 Difference]: Finished difference Result 74113 states and 102475 transitions. [2019-11-15 21:13:23,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-15 21:13:23,573 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 77 [2019-11-15 21:13:23,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:23,575 INFO L225 Difference]: With dead ends: 74113 [2019-11-15 21:13:23,575 INFO L226 Difference]: Without dead ends: 1343 [2019-11-15 21:13:23,647 INFO L600 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 [2019-11-15 21:13:23,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2019-11-15 21:13:23,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 585. [2019-11-15 21:13:23,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2019-11-15 21:13:23,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 700 transitions. [2019-11-15 21:13:23,667 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 700 transitions. Word has length 77 [2019-11-15 21:13:23,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:23,668 INFO L462 AbstractCegarLoop]: Abstraction has 585 states and 700 transitions. [2019-11-15 21:13:23,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-15 21:13:23,668 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 700 transitions. [2019-11-15 21:13:23,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-15 21:13:23,669 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:23,670 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1] [2019-11-15 21:13:23,873 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:23,873 INFO L410 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:23,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:23,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1093517585, now seen corresponding path program 8 times [2019-11-15 21:13:23,873 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:23,874 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679807029] [2019-11-15 21:13:23,874 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:23,874 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:23,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:23,990 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679807029] [2019-11-15 21:13:23,990 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20617056] [2019-11-15 21:13:23,990 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:24,050 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:13:24,050 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:24,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 21:13:24,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:24,067 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:24,067 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:24,068 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-15 21:13:24,068 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030805999] [2019-11-15 21:13:24,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 21:13:24,069 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:24,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 21:13:24,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:13:24,069 INFO L87 Difference]: Start difference. First operand 585 states and 700 transitions. Second operand 11 states. [2019-11-15 21:13:24,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:24,143 INFO L93 Difference]: Finished difference Result 701 states and 822 transitions. [2019-11-15 21:13:24,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 21:13:24,143 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2019-11-15 21:13:24,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:24,144 INFO L225 Difference]: With dead ends: 701 [2019-11-15 21:13:24,144 INFO L226 Difference]: Without dead ends: 587 [2019-11-15 21:13:24,145 INFO L600 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 [2019-11-15 21:13:24,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2019-11-15 21:13:24,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 481. [2019-11-15 21:13:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2019-11-15 21:13:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 563 transitions. [2019-11-15 21:13:24,158 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 563 transitions. Word has length 81 [2019-11-15 21:13:24,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:24,159 INFO L462 AbstractCegarLoop]: Abstraction has 481 states and 563 transitions. [2019-11-15 21:13:24,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 21:13:24,159 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 563 transitions. [2019-11-15 21:13:24,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-15 21:13:24,160 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:24,161 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2019-11-15 21:13:24,364 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:24,364 INFO L410 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:24,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:24,365 INFO L82 PathProgramCache]: Analyzing trace with hash -944170313, now seen corresponding path program 7 times [2019-11-15 21:13:24,365 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:24,365 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040923116] [2019-11-15 21:13:24,366 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:24,366 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:24,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:24,479 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:24,480 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040923116] [2019-11-15 21:13:24,480 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130318931] [2019-11-15 21:13:24,480 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:24,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 21:13:24,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:24,553 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:24,553 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-15 21:13:24,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820873696] [2019-11-15 21:13:24,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 21:13:24,554 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:24,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 21:13:24,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:13:24,554 INFO L87 Difference]: Start difference. First operand 481 states and 563 transitions. Second operand 10 states. [2019-11-15 21:13:24,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:24,623 INFO L93 Difference]: Finished difference Result 546 states and 639 transitions. [2019-11-15 21:13:24,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 21:13:24,623 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2019-11-15 21:13:24,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:24,624 INFO L225 Difference]: With dead ends: 546 [2019-11-15 21:13:24,624 INFO L226 Difference]: Without dead ends: 379 [2019-11-15 21:13:24,624 INFO L600 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 [2019-11-15 21:13:24,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-11-15 21:13:24,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-11-15 21:13:24,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-11-15 21:13:24,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 417 transitions. [2019-11-15 21:13:24,633 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 417 transitions. Word has length 81 [2019-11-15 21:13:24,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:24,633 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 417 transitions. [2019-11-15 21:13:24,633 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 21:13:24,634 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 417 transitions. [2019-11-15 21:13:24,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-15 21:13:24,635 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:24,635 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2019-11-15 21:13:24,838 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:24,839 INFO L410 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:24,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:24,839 INFO L82 PathProgramCache]: Analyzing trace with hash -2010450365, now seen corresponding path program 9 times [2019-11-15 21:13:24,839 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:24,839 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650837632] [2019-11-15 21:13:24,839 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:24,839 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:24,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:24,987 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:24,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650837632] [2019-11-15 21:13:24,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276908656] [2019-11-15 21:13:24,987 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:25,055 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-15 21:13:25,056 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:25,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 21:13:25,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:25,075 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:25,075 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:25,075 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-15 21:13:25,075 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91151915] [2019-11-15 21:13:25,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 21:13:25,078 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:25,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 21:13:25,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:13:25,079 INFO L87 Difference]: Start difference. First operand 379 states and 417 transitions. Second operand 12 states. [2019-11-15 21:13:25,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:25,131 INFO L93 Difference]: Finished difference Result 464 states and 501 transitions. [2019-11-15 21:13:25,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 21:13:25,131 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2019-11-15 21:13:25,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:25,132 INFO L225 Difference]: With dead ends: 464 [2019-11-15 21:13:25,132 INFO L226 Difference]: Without dead ends: 397 [2019-11-15 21:13:25,133 INFO L600 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 [2019-11-15 21:13:25,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-11-15 21:13:25,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 306. [2019-11-15 21:13:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-11-15 21:13:25,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 344 transitions. [2019-11-15 21:13:25,140 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 344 transitions. Word has length 81 [2019-11-15 21:13:25,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:25,141 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 344 transitions. [2019-11-15 21:13:25,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 21:13:25,141 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 344 transitions. [2019-11-15 21:13:25,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-11-15 21:13:25,142 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:25,142 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1] [2019-11-15 21:13:25,346 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:25,346 INFO L410 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:25,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:25,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1856106743, now seen corresponding path program 9 times [2019-11-15 21:13:25,347 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:25,347 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074786403] [2019-11-15 21:13:25,347 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:25,347 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:25,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:25,473 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074786403] [2019-11-15 21:13:25,474 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451001687] [2019-11-15 21:13:25,474 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:25,538 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-15 21:13:25,538 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:25,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 21:13:25,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:25,564 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:25,565 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-15 21:13:25,565 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134659605] [2019-11-15 21:13:25,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 21:13:25,565 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:25,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 21:13:25,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:13:25,565 INFO L87 Difference]: Start difference. First operand 306 states and 344 transitions. Second operand 12 states. [2019-11-15 21:13:25,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:25,620 INFO L93 Difference]: Finished difference Result 319 states and 357 transitions. [2019-11-15 21:13:25,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 21:13:25,620 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2019-11-15 21:13:25,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:25,621 INFO L225 Difference]: With dead ends: 319 [2019-11-15 21:13:25,621 INFO L226 Difference]: Without dead ends: 242 [2019-11-15 21:13:25,621 INFO L600 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 [2019-11-15 21:13:25,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-11-15 21:13:25,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 222. [2019-11-15 21:13:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-11-15 21:13:25,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 260 transitions. [2019-11-15 21:13:25,627 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 260 transitions. Word has length 90 [2019-11-15 21:13:25,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:25,628 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 260 transitions. [2019-11-15 21:13:25,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 21:13:25,628 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 260 transitions. [2019-11-15 21:13:25,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-11-15 21:13:25,629 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:25,629 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2019-11-15 21:13:25,830 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:25,830 INFO L410 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:25,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:25,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1359938858, now seen corresponding path program 8 times [2019-11-15 21:13:25,831 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:25,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801713832] [2019-11-15 21:13:25,831 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:25,831 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:25,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:25,981 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:25,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801713832] [2019-11-15 21:13:25,982 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168802874] [2019-11-15 21:13:25,982 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:26,051 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 21:13:26,051 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:26,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 21:13:26,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:26,069 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:26,069 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:26,069 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-11-15 21:13:26,070 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369681764] [2019-11-15 21:13:26,070 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 21:13:26,070 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:26,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 21:13:26,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:13:26,070 INFO L87 Difference]: Start difference. First operand 222 states and 260 transitions. Second operand 11 states. [2019-11-15 21:13:26,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:26,121 INFO L93 Difference]: Finished difference Result 243 states and 280 transitions. [2019-11-15 21:13:26,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 21:13:26,122 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2019-11-15 21:13:26,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:26,122 INFO L225 Difference]: With dead ends: 243 [2019-11-15 21:13:26,122 INFO L226 Difference]: Without dead ends: 102 [2019-11-15 21:13:26,123 INFO L600 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 [2019-11-15 21:13:26,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-15 21:13:26,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-11-15 21:13:26,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-15 21:13:26,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 101 transitions. [2019-11-15 21:13:26,126 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 101 transitions. Word has length 91 [2019-11-15 21:13:26,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:26,126 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 101 transitions. [2019-11-15 21:13:26,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 21:13:26,126 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 101 transitions. [2019-11-15 21:13:26,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-11-15 21:13:26,127 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:26,127 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2019-11-15 21:13:26,328 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:26,328 INFO L410 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:13:26,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:26,328 INFO L82 PathProgramCache]: Analyzing trace with hash -498811939, now seen corresponding path program 9 times [2019-11-15 21:13:26,328 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:13:26,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992912271] [2019-11-15 21:13:26,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:26,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:13:26,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:13:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:26,461 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:26,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992912271] [2019-11-15 21:13:26,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215521900] [2019-11-15 21:13:26,461 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/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 [2019-11-15 21:13:26,518 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-15 21:13:26,518 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 21:13:26,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 21:13:26,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:26,538 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:26,538 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:13:26,538 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-15 21:13:26,538 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449316065] [2019-11-15 21:13:26,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 21:13:26,539 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:13:26,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 21:13:26,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:13:26,539 INFO L87 Difference]: Start difference. First operand 102 states and 101 transitions. Second operand 12 states. [2019-11-15 21:13:26,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:26,566 INFO L93 Difference]: Finished difference Result 102 states and 101 transitions. [2019-11-15 21:13:26,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 21:13:26,566 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2019-11-15 21:13:26,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:26,567 INFO L225 Difference]: With dead ends: 102 [2019-11-15 21:13:26,567 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:13:26,567 INFO L600 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 [2019-11-15 21:13:26,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:13:26,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:13:26,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:13:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:13:26,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-11-15 21:13:26,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:26,568 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:13:26,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 21:13:26,568 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:13:26,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:13:26,768 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:13:26,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 21:13:51,611 WARN L191 SmtUtils]: Spent 24.82 s on a formula simplification. DAG size of input: 2170 DAG size of output: 1834 [2019-11-15 21:15:19,208 WARN L191 SmtUtils]: Spent 1.46 m on a formula simplification. DAG size of input: 1797 DAG size of output: 328 [2019-11-15 21:15:19,211 INFO L443 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2019-11-15 21:15:19,211 INFO L443 ceAbstractionStarter]: For program point L23(lines 23 31) no Hoare annotation was computed. [2019-11-15 21:15:19,211 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 33) no Hoare annotation was computed. [2019-11-15 21:15:19,211 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 21:15:19,212 INFO L443 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2019-11-15 21:15:19,213 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-11-15 21:15:19,213 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-15 21:15:19,213 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-11-15 21:15:19,213 INFO L446 ceAbstractionStarter]: At program point L34(lines 13 35) the Hoare annotation is: true [2019-11-15 21:15:19,213 INFO L443 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-11-15 21:15:19,213 INFO L443 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-11-15 21:15:19,213 INFO L443 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2019-11-15 21:15:19,213 INFO L443 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-11-15 21:15:19,213 INFO L443 ceAbstractionStarter]: For program point L22(lines 22 32) no Hoare annotation was computed. [2019-11-15 21:15:19,215 INFO L439 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)))) [2019-11-15 21:15:19,215 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-15 21:15:19,216 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-11-15 21:15:19,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:15:19 BoogieIcfgContainer [2019-11-15 21:15:19,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:15:19,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:15:19,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:15:19,284 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:15:19,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:12:52" (3/4) ... [2019-11-15 21:15:19,288 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:15:19,298 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 21:15:19,298 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 21:15:19,353 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b38766ed-3b87-45d2-a845-1e4a6eeebd94/bin/uautomizer/witness.graphml [2019-11-15 21:15:19,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:15:19,355 INFO L168 Benchmark]: Toolchain (without parser) took 147025.85 ms. Allocated memory was 1.0 GB in the beginning and 5.1 GB in the end (delta: 4.1 GB). Free memory was 947.5 MB in the beginning and 3.4 GB in the end (delta: -2.5 GB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. [2019-11-15 21:15:19,355 INFO L168 Benchmark]: CDTParser took 1.05 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. [2019-11-15 21:15:19,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 947.5 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:15:19,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.54 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. [2019-11-15 21:15:19,356 INFO L168 Benchmark]: Boogie Preprocessor took 16.34 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. [2019-11-15 21:15:19,357 INFO L168 Benchmark]: RCFGBuilder took 339.85 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:15:19,357 INFO L168 Benchmark]: TraceAbstraction took 146333.42 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 4.0 GB). Free memory was 1.1 GB in the beginning and 3.4 GB in the end (delta: -2.3 GB). Peak memory consumption was 4.8 GB. Max. memory is 11.5 GB. [2019-11-15 21:15:19,357 INFO L168 Benchmark]: Witness Printer took 69.57 ms. Allocated memory is still 5.1 GB. Free memory was 3.4 GB in the beginning and 3.4 GB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:15:19,360 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05 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 232.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 947.5 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.54 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 16.34 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 339.85 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 146333.42 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 4.0 GB). Free memory was 1.1 GB in the beginning and 3.4 GB in the end (delta: -2.3 GB). Peak memory consumption was 4.8 GB. Max. memory is 11.5 GB. * Witness Printer took 69.57 ms. Allocated memory is still 5.1 GB. Free memory was 3.4 GB in the beginning and 3.4 GB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 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: 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 - 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: 28]: 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: 146.2s, OverallIterations: 47, TraceHistogramMax: 11, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 112.4s, HoareTripleCheckerStatistics: 1231 SDtfs, 5757 SDslu, 4420 SDs, 0 SdLazy, 1307 SolverSat, 863 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s 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: 10.1s AutomataMinimizationTime, 47 MinimizatonAttempts, 130578 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 1768 NumberOfFragments, 4435 HoareAnnotationTreeSize, 2 FomulaSimplifications, 58518 FormulaSimplificationTreeSizeReduction, 24.8s HoareSimplificationTime, 2 FomulaSimplificationsInter, 66442 FormulaSimplificationTreeSizeReductionInter, 87.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.4s 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...